Merge ref '733dab558992' from rust-lang/rust

Pull recent changes from https://github.com/rust-lang/rust via Josh.

Upstream ref: 733dab558992d902d6d17576de1da768094e2cf3
Filtered ref: 8f0faf94fb41d4e2a85ef2d23e5495f6bea1f31d

This merge was created using https://github.com/rust-lang/josh-sync.

323 files changed, 6253 insertions, 3960 deletions

diff --git a/src/bootstrap/src/core/build_steps/check.rs b/src/bootstrap/src/core/build_steps/check.rs
index f0acb7f7141..cfe090b22dc 100644
--- a/src/bootstrap/src/core/build_steps/check.rs
+++ b/src/bootstrap/src/core/build_steps/check.rs
@@ -370,132 +370,18 @@ impl Step for CodegenBackend {
     }
 }
 
-/// Checks Rust analyzer that links to .rmetas from a checked rustc.
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct RustAnalyzer {
-    pub build_compiler: Compiler,
-    pub target: TargetSelection,
-}
-
-impl Step for RustAnalyzer {
-    type Output = ();
-    const ONLY_HOSTS: bool = true;
-    const DEFAULT: bool = true;
-
-    fn should_run(run: ShouldRun<'_>) -> ShouldRun<'_> {
-        let builder = run.builder;
-        run.path("src/tools/rust-analyzer").default_condition(
-            builder
-                .config
-                .tools
-                .as_ref()
-                .is_none_or(|tools| tools.iter().any(|tool| tool == "rust-analyzer")),
-        )
-    }
-
-    fn make_run(run: RunConfig<'_>) {
-        let build_compiler = prepare_compiler_for_check(run.builder, run.target, Mode::ToolRustc);
-        run.builder.ensure(RustAnalyzer { build_compiler, target: run.target });
-    }
-
-    fn run(self, builder: &Builder<'_>) {
-        let build_compiler = self.build_compiler;
-        let target = self.target;
-
-        let mut cargo = prepare_tool_cargo(
-            builder,
-            build_compiler,
-            Mode::ToolRustc,
-            target,
-            builder.kind,
-            "src/tools/rust-analyzer",
-            SourceType::InTree,
-            &["in-rust-tree".to_owned()],
-        );
-
-        cargo.allow_features(crate::core::build_steps::tool::RustAnalyzer::ALLOW_FEATURES);
-
-        cargo.arg("--bins");
-        cargo.arg("--tests");
-        cargo.arg("--benches");
-
-        // Cargo's output path in a given stage, compiled by a particular
-        // compiler for the specified target.
-        let stamp = BuildStamp::new(&builder.cargo_out(build_compiler, Mode::ToolRustc, target))
-            .with_prefix("rust-analyzer-check");
-
-        let _guard = builder.msg_check("rust-analyzer artifacts", target, None);
-        run_cargo(builder, cargo, builder.config.free_args.clone(), &stamp, vec![], true, false);
-    }
-
-    fn metadata(&self) -> Option<StepMetadata> {
-        Some(StepMetadata::check("rust-analyzer", self.target).built_by(self.build_compiler))
-    }
-}
-
-/// Compiletest is implicitly "checked" when it gets built in order to run tests,
-/// so this is mainly for people working on compiletest to run locally.
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct Compiletest {
-    pub target: TargetSelection,
-}
-
-impl Step for Compiletest {
-    type Output = ();
-    const ONLY_HOSTS: bool = true;
-    const DEFAULT: bool = false;
-
-    fn should_run(run: ShouldRun<'_>) -> ShouldRun<'_> {
-        run.path("src/tools/compiletest")
-    }
-
-    fn make_run(run: RunConfig<'_>) {
-        run.builder.ensure(Compiletest { target: run.target });
-    }
-
-    fn run(self, builder: &Builder<'_>) {
-        let mode = if builder.config.compiletest_use_stage0_libtest {
-            Mode::ToolBootstrap
-        } else {
-            Mode::ToolStd
-        };
-        let build_compiler = prepare_compiler_for_check(builder, self.target, mode);
-
-        let mut cargo = prepare_tool_cargo(
-            builder,
-            build_compiler,
-            mode,
-            self.target,
-            builder.kind,
-            "src/tools/compiletest",
-            SourceType::InTree,
-            &[],
-        );
-
-        cargo.allow_features(COMPILETEST_ALLOW_FEATURES);
-
-        cargo.arg("--all-targets");
-
-        let stamp = BuildStamp::new(&builder.cargo_out(build_compiler, mode, self.target))
-            .with_prefix("compiletest-check");
-
-        let _guard = builder.msg_check("compiletest artifacts", self.target, None);
-        run_cargo(builder, cargo, builder.config.free_args.clone(), &stamp, vec![], true, false);
-    }
-
-    fn metadata(&self) -> Option<StepMetadata> {
-        Some(StepMetadata::check("compiletest", self.target))
-    }
-}
-
 macro_rules! tool_check_step {
     (
         $name:ident {
             // The part of this path after the final '/' is also used as a display name.
             path: $path:literal
             $(, alt_path: $alt_path:literal )*
-            , mode: $mode:path
+            // Closure that returns `Mode` based on the passed `&Builder<'_>`
+            , mode: $mode:expr
+            // Subset of nightly features that are allowed to be used when checking
             $(, allow_features: $allow_features:expr )?
+            // Features that should be enabled when checking
+            $(, enable_features: [$($enable_features:expr),*] )?
             $(, default: $default:literal )?
             $( , )?
         }
@@ -518,10 +404,13 @@ macro_rules! tool_check_step {
 
             fn make_run(run: RunConfig<'_>) {
                 let target = run.target;
-                let build_compiler = prepare_compiler_for_check(run.builder, target, $mode);
+                let builder = run.builder;
+                let mode = $mode(builder);
+
+                let build_compiler = prepare_compiler_for_check(run.builder, target, mode);
 
                 // It doesn't make sense to cross-check bootstrap tools
-                if $mode == Mode::ToolBootstrap && target != run.builder.host_target {
+                if mode == Mode::ToolBootstrap && target != run.builder.host_target {
                     println!("WARNING: not checking bootstrap tool {} for target {target} as it is a bootstrap (host-only) tool", stringify!($path));
                     return;
                 };
@@ -536,7 +425,9 @@ macro_rules! tool_check_step {
                     $( _value = $allow_features; )?
                     _value
                 };
-                run_tool_check_step(builder, build_compiler, target, $path, $mode, allow_features);
+                let extra_features: &[&str] = &[$($($enable_features),*)?];
+                let mode = $mode(builder);
+                run_tool_check_step(builder, build_compiler, target, $path, mode, allow_features, extra_features);
             }
 
             fn metadata(&self) -> Option<StepMetadata> {
@@ -554,9 +445,11 @@ fn run_tool_check_step(
     path: &str,
     mode: Mode,
     allow_features: &str,
+    extra_features: &[&str],
 ) {
     let display_name = path.rsplit('/').next().unwrap();
 
+    let extra_features = extra_features.iter().map(|f| f.to_string()).collect::<Vec<String>>();
     let mut cargo = prepare_tool_cargo(
         builder,
         build_compiler,
@@ -569,12 +462,19 @@ fn run_tool_check_step(
         // steps should probably be marked non-default so that the default
         // checks aren't affected by toolstate being broken.
         SourceType::InTree,
-        &[],
+        &extra_features,
     );
     cargo.allow_features(allow_features);
 
-    // FIXME: check bootstrap doesn't currently work with --all-targets
-    cargo.arg("--all-targets");
+    // FIXME: check bootstrap doesn't currently work when multiple targets are checked
+    // FIXME: rust-analyzer does not work with --all-targets
+    if display_name == "rust-analyzer" {
+        cargo.arg("--bins");
+        cargo.arg("--tests");
+        cargo.arg("--benches");
+    } else {
+        cargo.arg("--all-targets");
+    }
 
     let stamp = BuildStamp::new(&builder.cargo_out(build_compiler, mode, target))
         .with_prefix(&format!("{display_name}-check"));
@@ -593,43 +493,66 @@ fn run_tool_check_step(
 tool_check_step!(Rustdoc {
     path: "src/tools/rustdoc",
     alt_path: "src/librustdoc",
-    mode: Mode::ToolRustc
+    mode: |_builder| Mode::ToolRustc
 });
 // Clippy, miri and Rustfmt are hybrids. They are external tools, but use a git subtree instead
 // of a submodule. Since the SourceType only drives the deny-warnings
 // behavior, treat it as in-tree so that any new warnings in clippy will be
 // rejected.
-tool_check_step!(Clippy { path: "src/tools/clippy", mode: Mode::ToolRustc });
-tool_check_step!(Miri { path: "src/tools/miri", mode: Mode::ToolRustc });
-tool_check_step!(CargoMiri { path: "src/tools/miri/cargo-miri", mode: Mode::ToolRustc });
-tool_check_step!(Rustfmt { path: "src/tools/rustfmt", mode: Mode::ToolRustc });
+tool_check_step!(Clippy { path: "src/tools/clippy", mode: |_builder| Mode::ToolRustc });
+tool_check_step!(Miri { path: "src/tools/miri", mode: |_builder| Mode::ToolRustc });
+tool_check_step!(CargoMiri { path: "src/tools/miri/cargo-miri", mode: |_builder| Mode::ToolRustc });
+tool_check_step!(Rustfmt { path: "src/tools/rustfmt", mode: |_builder| Mode::ToolRustc });
+tool_check_step!(RustAnalyzer {
+    path: "src/tools/rust-analyzer",
+    mode: |_builder| Mode::ToolRustc,
+    allow_features: tool::RustAnalyzer::ALLOW_FEATURES,
+    enable_features: ["in-rust-tree"],
+});
 tool_check_step!(MiroptTestTools {
     path: "src/tools/miropt-test-tools",
-    mode: Mode::ToolBootstrap
+    mode: |_builder| Mode::ToolBootstrap
 });
 // We want to test the local std
 tool_check_step!(TestFloatParse {
     path: "src/tools/test-float-parse",
-    mode: Mode::ToolStd,
+    mode: |_builder| Mode::ToolStd,
     allow_features: tool::TestFloatParse::ALLOW_FEATURES
 });
 tool_check_step!(FeaturesStatusDump {
     path: "src/tools/features-status-dump",
-    mode: Mode::ToolBootstrap
+    mode: |_builder| Mode::ToolBootstrap
 });
 
-tool_check_step!(Bootstrap { path: "src/bootstrap", mode: Mode::ToolBootstrap, default: false });
+tool_check_step!(Bootstrap {
+    path: "src/bootstrap",
+    mode: |_builder| Mode::ToolBootstrap,
+    default: false
+});
 
 // `run-make-support` will be built as part of suitable run-make compiletest test steps, but support
 // check to make it easier to work on.
 tool_check_step!(RunMakeSupport {
     path: "src/tools/run-make-support",
-    mode: Mode::ToolBootstrap,
+    mode: |_builder| Mode::ToolBootstrap,
     default: false
 });
 
 tool_check_step!(CoverageDump {
     path: "src/tools/coverage-dump",
-    mode: Mode::ToolBootstrap,
+    mode: |_builder| Mode::ToolBootstrap,
     default: false
 });
+
+// Compiletest is implicitly "checked" when it gets built in order to run tests,
+// so this is mainly for people working on compiletest to run locally.
+tool_check_step!(Compiletest {
+    path: "src/tools/compiletest",
+    mode: |builder: &Builder<'_>| if builder.config.compiletest_use_stage0_libtest {
+        Mode::ToolBootstrap
+    } else {
+        Mode::ToolStd
+    },
+    allow_features: COMPILETEST_ALLOW_FEATURES,
+    default: false,
+});
diff --git a/src/bootstrap/src/core/build_steps/clippy.rs b/src/bootstrap/src/core/build_steps/clippy.rs
index a0371eb7155..b119f2dc3ce 100644
--- a/src/bootstrap/src/core/build_steps/clippy.rs
+++ b/src/bootstrap/src/core/build_steps/clippy.rs
@@ -19,6 +19,7 @@ const IGNORED_RULES_FOR_STD_AND_RUSTC: &[&str] = &[
     "too_many_arguments",
     "needless_lifetimes", // people want to keep the lifetimes
     "wrong_self_convention",
+    "approx_constant", // libcore is what defines those
 ];
 
 fn lint_args(builder: &Builder<'_>, config: &LintConfig, ignored_rules: &[&str]) -> Vec<String> {
diff --git a/src/bootstrap/src/core/build_steps/compile.rs b/src/bootstrap/src/core/build_steps/compile.rs
index c7e7b0160b1..4abfe1843eb 100644
--- a/src/bootstrap/src/core/build_steps/compile.rs
+++ b/src/bootstrap/src/core/build_steps/compile.rs
@@ -597,11 +597,6 @@ pub fn std_cargo(builder: &Builder<'_>, target: TargetSelection, stage: u32, car
 
     let mut features = String::new();
 
-    if stage != 0 && builder.config.default_codegen_backend(target).as_deref() == Some("cranelift")
-    {
-        features += "compiler-builtins-no-f16-f128 ";
-    }
-
     if builder.no_std(target) == Some(true) {
         features += " compiler-builtins-mem";
         if !target.starts_with("bpf") {
diff --git a/src/bootstrap/src/core/build_steps/dist.rs b/src/bootstrap/src/core/build_steps/dist.rs
index 39e4fb2ac01..c8a54ad250c 100644
--- a/src/bootstrap/src/core/build_steps/dist.rs
+++ b/src/bootstrap/src/core/build_steps/dist.rs
@@ -1068,6 +1068,8 @@ impl Step for PlainSourceTarball {
             "bootstrap.example.toml",
             "configure",
             "license-metadata.json",
+            "package-lock.json",
+            "package.json",
             "x",
             "x.ps1",
             "x.py",
diff --git a/src/bootstrap/src/core/build_steps/test.rs b/src/bootstrap/src/core/build_steps/test.rs
index 7652ea1a488..0f9268097d7 100644
--- a/src/bootstrap/src/core/build_steps/test.rs
+++ b/src/bootstrap/src/core/build_steps/test.rs
@@ -739,7 +739,6 @@ impl Step for CompiletestTest {
 
 #[derive(Debug, Clone, PartialEq, Eq, Hash)]
 pub struct Clippy {
-    stage: u32,
     host: TargetSelection,
 }
 
@@ -753,33 +752,23 @@ impl Step for Clippy {
     }
 
     fn make_run(run: RunConfig<'_>) {
-        // If stage is explicitly set or not lower than 2, keep it. Otherwise, make sure it's at least 2
-        // as tests for this step don't work with a lower stage.
-        let stage = if run.builder.config.is_explicit_stage() || run.builder.top_stage >= 2 {
-            run.builder.top_stage
-        } else {
-            2
-        };
-
-        run.builder.ensure(Clippy { stage, host: run.target });
+        run.builder.ensure(Clippy { host: run.target });
     }
 
     /// Runs `cargo test` for clippy.
     fn run(self, builder: &Builder<'_>) {
-        let stage = self.stage;
+        let stage = builder.top_stage;
         let host = self.host;
-        let compiler = builder.compiler(stage, host);
-
-        if stage < 2 {
-            eprintln!("WARNING: clippy tests on stage {stage} may not behave well.");
-            eprintln!("HELP: consider using stage 2");
-        }
+        // We need to carefully distinguish the compiler that builds clippy, and the compiler
+        // that is linked into the clippy being tested. `target_compiler` is the latter,
+        // and it must also be used by clippy's test runner to build tests and their dependencies.
+        let target_compiler = builder.compiler(stage, host);
 
-        let tool_result = builder.ensure(tool::Clippy { compiler, target: self.host });
-        let compiler = tool_result.build_compiler;
+        let tool_result = builder.ensure(tool::Clippy { compiler: target_compiler, target: host });
+        let tool_compiler = tool_result.build_compiler;
         let mut cargo = tool::prepare_tool_cargo(
             builder,
-            compiler,
+            tool_compiler,
             Mode::ToolRustc,
             host,
             Kind::Test,
@@ -788,11 +777,17 @@ impl Step for Clippy {
             &[],
         );
 
-        cargo.env("RUSTC_TEST_SUITE", builder.rustc(compiler));
-        cargo.env("RUSTC_LIB_PATH", builder.rustc_libdir(compiler));
-        let host_libs = builder.stage_out(compiler, Mode::ToolRustc).join(builder.cargo_dir());
+        cargo.env("RUSTC_TEST_SUITE", builder.rustc(tool_compiler));
+        cargo.env("RUSTC_LIB_PATH", builder.rustc_libdir(tool_compiler));
+        let host_libs = builder.stage_out(tool_compiler, Mode::ToolRustc).join(builder.cargo_dir());
         cargo.env("HOST_LIBS", host_libs);
 
+        // Build the standard library that the tests can use.
+        builder.std(target_compiler, host);
+        cargo.env("TEST_SYSROOT", builder.sysroot(target_compiler));
+        cargo.env("TEST_RUSTC", builder.rustc(target_compiler));
+        cargo.env("TEST_RUSTC_LIB", builder.rustc_libdir(target_compiler));
+
         // Collect paths of tests to run
         'partially_test: {
             let paths = &builder.config.paths[..];
@@ -813,7 +808,8 @@ impl Step for Clippy {
         cargo.add_rustc_lib_path(builder);
         let cargo = prepare_cargo_test(cargo, &[], &[], host, builder);
 
-        let _guard = builder.msg_sysroot_tool(Kind::Test, compiler.stage, "clippy", host, host);
+        let _guard =
+            builder.msg_sysroot_tool(Kind::Test, tool_compiler.stage, "clippy", host, host);
 
         // Clippy reports errors if it blessed the outputs
         if cargo.allow_failure().run(builder) {
@@ -1117,6 +1113,12 @@ impl Step for Tidy {
             8 * std::thread::available_parallelism().map_or(1, std::num::NonZeroUsize::get) as u32
         });
         cmd.arg(jobs.to_string());
+        // pass the path to the npm command used for installing js deps.
+        if let Some(npm) = &builder.config.npm {
+            cmd.arg(npm);
+        } else {
+            cmd.arg("npm");
+        }
         if builder.is_verbose() {
             cmd.arg("--verbose");
         }
@@ -1346,7 +1348,12 @@ test!(Ui { path: "tests/ui", mode: "ui", suite: "ui", default: true });
 
 test!(Crashes { path: "tests/crashes", mode: "crashes", suite: "crashes", default: true });
 
-test!(Codegen { path: "tests/codegen", mode: "codegen", suite: "codegen", default: true });
+test!(CodegenLlvm {
+    path: "tests/codegen-llvm",
+    mode: "codegen",
+    suite: "codegen-llvm",
+    default: true
+});
 
 test!(CodegenUnits {
     path: "tests/codegen-units",
@@ -1411,7 +1418,12 @@ test!(Pretty {
 
 test!(RunMake { path: "tests/run-make", mode: "run-make", suite: "run-make", default: true });
 
-test!(Assembly { path: "tests/assembly", mode: "assembly", suite: "assembly", default: true });
+test!(AssemblyLlvm {
+    path: "tests/assembly-llvm",
+    mode: "assembly",
+    suite: "assembly-llvm",
+    default: true
+});
 
 /// Runs the coverage test suite at `tests/coverage` in some or all of the
 /// coverage test modes.
@@ -1619,7 +1631,7 @@ NOTE: if you're sure you want to do this, please open an issue as to why. In the
         let suite_path = self.path;
 
         // Skip codegen tests if they aren't enabled in configuration.
-        if !builder.config.codegen_tests && suite == "codegen" {
+        if !builder.config.codegen_tests && mode == "codegen" {
             return;
         }
 
@@ -1816,7 +1828,7 @@ NOTE: if you're sure you want to do this, please open an issue as to why. In the
         let mut flags = if is_rustdoc { Vec::new() } else { vec!["-Crpath".to_string()] };
         flags.push(format!(
             "-Cdebuginfo={}",
-            if suite == "codegen" {
+            if mode == "codegen" {
                 // codegen tests typically check LLVM IR and are sensitive to additional debuginfo.
                 // So do not apply `rust.debuginfo-level-tests` for codegen tests.
                 if builder.config.rust_debuginfo_level_tests
@@ -3120,7 +3132,11 @@ impl Step for Bootstrap {
     }
 
     fn should_run(run: ShouldRun<'_>) -> ShouldRun<'_> {
-        run.path("src/bootstrap")
+        // Bootstrap tests might not be perfectly self-contained and can depend on the external
+        // environment, submodules that are checked out, etc.
+        // Therefore we only run them by default on CI.
+        let runs_on_ci = run.builder.config.is_running_on_ci;
+        run.path("src/bootstrap").default_condition(runs_on_ci)
     }
 
     fn make_run(run: RunConfig<'_>) {
diff --git a/src/bootstrap/src/core/builder/mod.rs b/src/bootstrap/src/core/builder/mod.rs
index d73e2bce25b..923c3a9a935 100644
--- a/src/bootstrap/src/core/builder/mod.rs
+++ b/src/bootstrap/src/core/builder/mod.rs
@@ -411,8 +411,8 @@ const PATH_REMAP: &[(&str, &[&str])] = &[
         "tests",
         &[
             // tidy-alphabetical-start
-            "tests/assembly",
-            "tests/codegen",
+            "tests/assembly-llvm",
+            "tests/codegen-llvm",
             "tests/codegen-units",
             "tests/coverage",
             "tests/coverage-run-rustdoc",
@@ -1049,9 +1049,9 @@ impl<'a> Builder<'a> {
                 test::Crashes,
                 test::Coverage,
                 test::MirOpt,
-                test::Codegen,
+                test::CodegenLlvm,
                 test::CodegenUnits,
-                test::Assembly,
+                test::AssemblyLlvm,
                 test::Incremental,
                 test::Debuginfo,
                 test::UiFullDeps,
diff --git a/src/bootstrap/src/core/builder/tests.rs b/src/bootstrap/src/core/builder/tests.rs
index e60a115b19d..6ea5d4e6553 100644
--- a/src/bootstrap/src/core/builder/tests.rs
+++ b/src/bootstrap/src/core/builder/tests.rs
@@ -642,6 +642,7 @@ mod snapshot {
     };
     use crate::core::builder::{Builder, Kind, StepDescription, StepMetadata};
     use crate::core::config::TargetSelection;
+    use crate::core::config::toml::rust::with_lld_opt_in_targets;
     use crate::utils::cache::Cache;
     use crate::utils::helpers::get_host_target;
     use crate::utils::tests::{ConfigBuilder, TestCtx};
@@ -998,7 +999,7 @@ mod snapshot {
         [build] llvm <host>
         [build] rustc 0 <host> -> rustc 1 <host>
         [build] rustdoc 0 <host>
-        [doc] std 1 <host> crates=[alloc,compiler_builtins,core,panic_abort,panic_unwind,proc_macro,std,sysroot,test,unwind]
+        [doc] std 1 <host> crates=[alloc,compiler_builtins,core,panic_abort,panic_unwind,proc_macro,std,std_detect,sysroot,test,unwind]
         ");
     }
 
@@ -1047,7 +1048,7 @@ mod snapshot {
         [build] rustc 1 <host> -> std 1 <host>
         [build] rustc 1 <host> -> rustc 2 <host>
         [build] rustdoc 1 <host>
-        [doc] std 2 <host> crates=[alloc,compiler_builtins,core,panic_abort,panic_unwind,proc_macro,std,sysroot,test,unwind]
+        [doc] std 2 <host> crates=[alloc,compiler_builtins,core,panic_abort,panic_unwind,proc_macro,std,std_detect,sysroot,test,unwind]
         [build] rustc 2 <host> -> std 2 <host>
         [build] rustc 0 <host> -> LintDocs 1 <host>
         [build] rustc 0 <host> -> RustInstaller 1 <host>
@@ -1089,7 +1090,7 @@ mod snapshot {
         [build] rustc 1 <host> -> WasmComponentLd 2 <host>
         [build] rustc 1 <host> -> LlvmBitcodeLinker 2 <host>
         [build] rustdoc 1 <host>
-        [doc] std 2 <host> crates=[alloc,compiler_builtins,core,panic_abort,panic_unwind,proc_macro,std,sysroot,test,unwind]
+        [doc] std 2 <host> crates=[alloc,compiler_builtins,core,panic_abort,panic_unwind,proc_macro,std,std_detect,sysroot,test,unwind]
         [build] rustc 2 <host> -> std 2 <host>
         [build] rustc 0 <host> -> LintDocs 1 <host>
         [build] rustc 0 <host> -> RustInstaller 1 <host>
@@ -1125,8 +1126,8 @@ mod snapshot {
         [build] rustc 1 <host> -> std 1 <host>
         [build] rustc 1 <host> -> rustc 2 <host>
         [build] rustdoc 1 <host>
-        [doc] std 2 <host> crates=[alloc,compiler_builtins,core,panic_abort,panic_unwind,proc_macro,std,sysroot,test,unwind]
-        [doc] std 2 <target1> crates=[alloc,compiler_builtins,core,panic_abort,panic_unwind,proc_macro,std,sysroot,test,unwind]
+        [doc] std 2 <host> crates=[alloc,compiler_builtins,core,panic_abort,panic_unwind,proc_macro,std,std_detect,sysroot,test,unwind]
+        [doc] std 2 <target1> crates=[alloc,compiler_builtins,core,panic_abort,panic_unwind,proc_macro,std,std_detect,sysroot,test,unwind]
         [build] rustc 2 <host> -> std 2 <host>
         [build] rustc 0 <host> -> LintDocs 1 <host>
         [build] rustc 0 <host> -> RustInstaller 1 <host>
@@ -1162,7 +1163,7 @@ mod snapshot {
         [build] rustc 1 <host> -> std 1 <host>
         [build] rustc 1 <host> -> rustc 2 <host>
         [build] rustdoc 1 <host>
-        [doc] std 2 <host> crates=[alloc,compiler_builtins,core,panic_abort,panic_unwind,proc_macro,std,sysroot,test,unwind]
+        [doc] std 2 <host> crates=[alloc,compiler_builtins,core,panic_abort,panic_unwind,proc_macro,std,std_detect,sysroot,test,unwind]
         [build] rustc 2 <host> -> std 2 <host>
         [build] rustc 0 <host> -> LintDocs 1 <host>
         [build] rustc 1 <host> -> std 1 <target1>
@@ -1199,8 +1200,8 @@ mod snapshot {
         [build] rustc 1 <host> -> std 1 <host>
         [build] rustc 1 <host> -> rustc 2 <host>
         [build] rustdoc 1 <host>
-        [doc] std 2 <host> crates=[alloc,compiler_builtins,core,panic_abort,panic_unwind,proc_macro,std,sysroot,test,unwind]
-        [doc] std 2 <target1> crates=[alloc,compiler_builtins,core,panic_abort,panic_unwind,proc_macro,std,sysroot,test,unwind]
+        [doc] std 2 <host> crates=[alloc,compiler_builtins,core,panic_abort,panic_unwind,proc_macro,std,std_detect,sysroot,test,unwind]
+        [doc] std 2 <target1> crates=[alloc,compiler_builtins,core,panic_abort,panic_unwind,proc_macro,std,std_detect,sysroot,test,unwind]
         [build] rustc 2 <host> -> std 2 <host>
         [build] rustc 0 <host> -> LintDocs 1 <host>
         [build] rustc 1 <host> -> std 1 <target1>
@@ -1241,7 +1242,7 @@ mod snapshot {
         [build] rustc 1 <host> -> std 1 <host>
         [build] rustc 1 <host> -> rustc 2 <host>
         [build] rustdoc 1 <host>
-        [doc] std 2 <target1> crates=[alloc,compiler_builtins,core,panic_abort,panic_unwind,proc_macro,std,sysroot,test,unwind]
+        [doc] std 2 <target1> crates=[alloc,compiler_builtins,core,panic_abort,panic_unwind,proc_macro,std,std_detect,sysroot,test,unwind]
         [build] rustc 2 <host> -> std 2 <host>
         [build] rustc 0 <host> -> RustInstaller 1 <host>
         [dist] docs <target1>
@@ -1273,7 +1274,7 @@ mod snapshot {
         [build] rustc 1 <host> -> rustc 2 <host>
         [build] rustc 1 <host> -> WasmComponentLd 2 <host>
         [build] rustdoc 1 <host>
-        [doc] std 2 <target1> crates=[alloc,compiler_builtins,core,panic_abort,panic_unwind,proc_macro,std,sysroot,test,unwind]
+        [doc] std 2 <target1> crates=[alloc,compiler_builtins,core,panic_abort,panic_unwind,proc_macro,std,std_detect,sysroot,test,unwind]
         [build] rustc 2 <host> -> std 2 <host>
         [build] rustc 1 <host> -> std 1 <target1>
         [build] rustc 2 <host> -> std 2 <target1>
@@ -1382,7 +1383,7 @@ mod snapshot {
         [check] rustc 1 <host> -> Miri 2 <target1>
         [check] rustc 1 <host> -> CargoMiri 2 <target1>
         [check] rustc 1 <host> -> Rustfmt 2 <target1>
-        [check] rustc 1 <host> -> rust-analyzer 2 <target1>
+        [check] rustc 1 <host> -> RustAnalyzer 2 <target1>
         [check] rustc 1 <host> -> TestFloatParse 2 <target1>
         [check] rustc 1 <host> -> std 1 <target1>
         ");
@@ -1530,7 +1531,7 @@ mod snapshot {
         insta::assert_snapshot!(
             ctx.config("check")
                 .path("compiletest")
-                .render_steps(), @"[check] compiletest <host>");
+                .render_steps(), @"[check] rustc 0 <host> -> Compiletest 1 <host>");
     }
 
     #[test]
@@ -1544,7 +1545,7 @@ mod snapshot {
         [build] llvm <host>
         [build] rustc 0 <host> -> rustc 1 <host>
         [build] rustc 1 <host> -> std 1 <host>
-        [check] compiletest <host>
+        [check] rustc 1 <host> -> Compiletest 2 <host>
         ");
     }
 
@@ -1569,7 +1570,7 @@ mod snapshot {
                 .path("rust-analyzer")
                 .render_steps(), @r"
         [check] rustc 0 <host> -> rustc 1 <host>
-        [check] rustc 0 <host> -> rust-analyzer 1 <host>
+        [check] rustc 0 <host> -> RustAnalyzer 1 <host>
         ");
     }
 
@@ -1619,7 +1620,7 @@ mod snapshot {
         [build] llvm <host>
         [build] rustc 0 <host> -> rustc 1 <host>
         [build] rustdoc 0 <host>
-        [doc] std 1 <host> crates=[alloc,compiler_builtins,core,panic_abort,panic_unwind,proc_macro,std,sysroot,test,unwind]
+        [doc] std 1 <host> crates=[alloc,compiler_builtins,core,panic_abort,panic_unwind,proc_macro,std,std_detect,sysroot,test,unwind]
         ");
     }
 
@@ -1653,6 +1654,21 @@ mod snapshot {
     }
 
     #[test]
+    fn test_lld_opt_in() {
+        with_lld_opt_in_targets(vec![host_target()], || {
+            let ctx = TestCtx::new();
+            insta::assert_snapshot!(
+                ctx.config("build")
+                    .path("compiler")
+                    .render_steps(), @r"
+            [build] llvm <host>
+            [build] rustc 0 <host> -> rustc 1 <host>
+            [build] rustc 0 <host> -> LldWrapper 1 <host>
+            ");
+        });
+    }
+
+    #[test]
     fn doc_library_no_std_target() {
         let ctx = TestCtx::new();
         insta::assert_snapshot!(
diff --git a/src/bootstrap/src/core/config/config.rs b/src/bootstrap/src/core/config/config.rs
index 22a75183404..6e04f115424 100644
--- a/src/bootstrap/src/core/config/config.rs
+++ b/src/bootstrap/src/core/config/config.rs
@@ -942,6 +942,7 @@ impl Config {
         config.rust_profile_use = flags_rust_profile_use;
         config.rust_profile_generate = flags_rust_profile_generate;
 
+        config.apply_target_config(toml.target);
         config.apply_rust_config(toml.rust, flags_warnings);
 
         config.reproducible_artifacts = flags_reproducible_artifact;
@@ -967,8 +968,6 @@ impl Config {
 
         config.apply_gcc_config(toml.gcc);
 
-        config.apply_target_config(toml.target);
-
         match ccache {
             Some(StringOrBool::String(ref s)) => config.ccache = Some(s.to_string()),
             Some(StringOrBool::Bool(true)) => {
diff --git a/src/bootstrap/src/core/config/flags.rs b/src/bootstrap/src/core/config/flags.rs
index 1547ca44494..31a427f9ffa 100644
--- a/src/bootstrap/src/core/config/flags.rs
+++ b/src/bootstrap/src/core/config/flags.rs
@@ -386,7 +386,7 @@ pub enum Subcommand {
         bless: bool,
         #[arg(long)]
         /// comma-separated list of other files types to check (accepts py, py:lint,
-        /// py:fmt, shell, shell:lint, cpp, cpp:fmt, spellcheck)
+        /// py:fmt, shell, cpp, cpp:fmt, js, js:lint, js:typecheck, spellcheck)
         ///
         /// Any argument can be prefixed with "auto:" to only run if
         /// relevant files are modified (eg. "auto:py").
diff --git a/src/bootstrap/src/core/config/toml/rust.rs b/src/bootstrap/src/core/config/toml/rust.rs
index 71fab0e6ae6..c136bd4a6f9 100644
--- a/src/bootstrap/src/core/config/toml/rust.rs
+++ b/src/bootstrap/src/core/config/toml/rust.rs
@@ -410,6 +410,31 @@ pub(crate) fn validate_codegen_backends(backends: Vec<String>, section: &str) ->
     backends
 }
 
+#[cfg(not(test))]
+fn default_lld_opt_in_targets() -> Vec<String> {
+    vec!["x86_64-unknown-linux-gnu".to_string()]
+}
+
+#[cfg(test)]
+thread_local! {
+    static TEST_LLD_OPT_IN_TARGETS: std::cell::RefCell<Option<Vec<String>>> = std::cell::RefCell::new(None);
+}
+
+#[cfg(test)]
+fn default_lld_opt_in_targets() -> Vec<String> {
+    TEST_LLD_OPT_IN_TARGETS.with(|cell| cell.borrow().clone()).unwrap_or_default()
+}
+
+#[cfg(test)]
+pub fn with_lld_opt_in_targets<R>(targets: Vec<String>, f: impl FnOnce() -> R) -> R {
+    TEST_LLD_OPT_IN_TARGETS.with(|cell| {
+        let prev = cell.replace(Some(targets));
+        let result = f();
+        cell.replace(prev);
+        result
+    })
+}
+
 impl Config {
     pub fn apply_rust_config(&mut self, toml_rust: Option<Rust>, warnings: Warnings) {
         let mut debug = None;
@@ -617,12 +642,13 @@ impl Config {
         //   thus, disabled
         // - similarly, lld will not be built nor used by default when explicitly asked not to, e.g.
         //   when the config sets `rust.lld = false`
-        if self.host_target.triple == "x86_64-unknown-linux-gnu" && self.hosts == [self.host_target]
+        if default_lld_opt_in_targets().contains(&self.host_target.triple.to_string())
+            && self.hosts == [self.host_target]
         {
             let no_llvm_config = self
                 .target_config
                 .get(&self.host_target)
-                .is_some_and(|target_config| target_config.llvm_config.is_none());
+                .is_none_or(|target_config| target_config.llvm_config.is_none());
             let enable_lld = self.llvm_from_ci || no_llvm_config;
             // Prefer the config setting in case an explicit opt-out is needed.
             self.lld_enabled = lld_enabled.unwrap_or(enable_lld);
diff --git a/src/bootstrap/src/core/download.rs b/src/bootstrap/src/core/download.rs
index d7c6d8dbcc3..373fcd52052 100644
--- a/src/bootstrap/src/core/download.rs
+++ b/src/bootstrap/src/core/download.rs
@@ -875,6 +875,7 @@ pub(crate) fn is_download_ci_available(target_triple: &str, llvm_assertions: boo
         "powerpc-unknown-linux-gnu",
         "powerpc64-unknown-linux-gnu",
         "powerpc64le-unknown-linux-gnu",
+        "powerpc64le-unknown-linux-musl",
         "riscv64gc-unknown-linux-gnu",
         "s390x-unknown-linux-gnu",
         "x86_64-apple-darwin",
diff --git a/src/bootstrap/src/core/sanity.rs b/src/bootstrap/src/core/sanity.rs
index b39d464493e..15e04f59129 100644
--- a/src/bootstrap/src/core/sanity.rs
+++ b/src/bootstrap/src/core/sanity.rs
@@ -338,12 +338,6 @@ than building it.
 
         // Make sure musl-root is valid.
         if target.contains("musl") && !target.contains("unikraft") {
-            // If this is a native target (host is also musl) and no musl-root is given,
-            // fall back to the system toolchain in /usr before giving up
-            if build.musl_root(*target).is_none() && build.config.is_host_target(*target) {
-                let target = build.config.target_config.entry(*target).or_default();
-                target.musl_root = Some("/usr".into());
-            }
             match build.musl_libdir(*target) {
                 Some(libdir) => {
                     if fs::metadata(libdir.join("libc.a")).is_err() {
diff --git a/src/bootstrap/src/lib.rs b/src/bootstrap/src/lib.rs
index 63aab4d116a..51a84ad5272 100644
--- a/src/bootstrap/src/lib.rs
+++ b/src/bootstrap/src/lib.rs
@@ -1329,23 +1329,33 @@ impl Build {
         }
     }
 
-    /// Returns the "musl root" for this `target`, if defined
+    /// Returns the "musl root" for this `target`, if defined.
+    ///
+    /// If this is a native target (host is also musl) and no musl-root is given,
+    /// it falls back to the system toolchain in /usr.
     fn musl_root(&self, target: TargetSelection) -> Option<&Path> {
-        self.config
+        let configured_root = self
+            .config
             .target_config
             .get(&target)
             .and_then(|t| t.musl_root.as_ref())
             .or(self.config.musl_root.as_ref())
-            .map(|p| &**p)
+            .map(|p| &**p);
+
+        if self.config.is_host_target(target) && configured_root.is_none() {
+            Some(Path::new("/usr"))
+        } else {
+            configured_root
+        }
     }
 
     /// Returns the "musl libdir" for this `target`.
     fn musl_libdir(&self, target: TargetSelection) -> Option<PathBuf> {
-        let t = self.config.target_config.get(&target)?;
-        if let libdir @ Some(_) = &t.musl_libdir {
-            return libdir.clone();
-        }
-        self.musl_root(target).map(|root| root.join("lib"))
+        self.config
+            .target_config
+            .get(&target)
+            .and_then(|t| t.musl_libdir.clone())
+            .or_else(|| self.musl_root(target).map(|root| root.join("lib")))
     }
 
     /// Returns the `lib` directory for the WASI target specified, if
diff --git a/src/bootstrap/src/utils/change_tracker.rs b/src/bootstrap/src/utils/change_tracker.rs
index f802640a42d..4b0c4821364 100644
--- a/src/bootstrap/src/utils/change_tracker.rs
+++ b/src/bootstrap/src/utils/change_tracker.rs
@@ -439,7 +439,7 @@ pub const CONFIG_CHANGE_HISTORY: &[ChangeInfo] = &[
     ChangeInfo {
         change_id: 143255,
         severity: ChangeSeverity::Warning,
-        summary: "`llvm.lld` is no longer enabled by default for the dist profile.",
+        summary: "`rust.lld` is no longer enabled by default for the dist profile.",
     },
     ChangeInfo {
         change_id: 143251,
diff --git a/src/bootstrap/src/utils/shared_helpers.rs b/src/bootstrap/src/utils/shared_helpers.rs
index 9c6b4a7615d..9428e221f41 100644
--- a/src/bootstrap/src/utils/shared_helpers.rs
+++ b/src/bootstrap/src/utils/shared_helpers.rs
@@ -1,14 +1,18 @@
 //! This module serves two purposes:
-//!     1. It is part of the `utils` module and used in other parts of bootstrap.
-//!     2. It is embedded inside bootstrap shims to avoid a dependency on the bootstrap library.
-//!        Therefore, this module should never use any other bootstrap module. This reduces binary
-//!        size and improves compilation time by minimizing linking time.
+//!
+//! 1. It is part of the `utils` module and used in other parts of bootstrap.
+//! 2. It is embedded inside bootstrap shims to avoid a dependency on the bootstrap library.
+//!    Therefore, this module should never use any other bootstrap module. This reduces binary size
+//!    and improves compilation time by minimizing linking time.
+
+// # Note on tests
+//
+// If we were to declare a tests submodule here, the shim binaries that include this module via
+// `#[path]` would fail to find it, which breaks `./x check bootstrap`. So instead the unit tests
+// for this module are in `super::tests::shared_helpers_tests`.
 
 #![allow(dead_code)]
 
-#[cfg(test)]
-mod tests;
-
 use std::env;
 use std::ffi::OsString;
 use std::fs::OpenOptions;
@@ -16,10 +20,6 @@ use std::io::Write;
 use std::process::Command;
 use std::str::FromStr;
 
-// If we were to declare a tests submodule here, the shim binaries that include this
-// module via `#[path]` would fail to find it, which breaks `./x check bootstrap`.
-// So instead the unit tests for this module are in `super::tests::shared_helpers_tests`.
-
 /// Returns the environment variable which the dynamic library lookup path
 /// resides in for this platform.
 pub fn dylib_path_var() -> &'static str {
diff --git a/src/bootstrap/src/utils/tests/mod.rs b/src/bootstrap/src/utils/tests/mod.rs
index ec87e71e0b6..983680b0385 100644
--- a/src/bootstrap/src/utils/tests/mod.rs
+++ b/src/bootstrap/src/utils/tests/mod.rs
@@ -12,6 +12,10 @@ use crate::{Build, Config, Flags, t};
 
 pub mod git;
 
+// Note: tests for `shared_helpers` is separate here, as otherwise shim binaries that include the
+// `shared_helpers` via `#[path]` would fail to find it, breaking `./x check bootstrap`.
+mod shared_helpers_tests;
+
 /// Holds temporary state of a bootstrap test.
 /// Right now it is only used to redirect the build directory of the bootstrap
 /// invocation, in the future it would be great if we could actually execute
diff --git a/src/bootstrap/src/utils/shared_helpers/tests.rs b/src/bootstrap/src/utils/tests/shared_helpers_tests.rs
index 559e9f70abd..c486e65007e 100644
--- a/src/bootstrap/src/utils/shared_helpers/tests.rs
+++ b/src/bootstrap/src/utils/tests/shared_helpers_tests.rs
@@ -1,3 +1,10 @@
+//! The `shared_helpers` module can't have its own tests submodule, because that would cause
+//! problems for the shim binaries that include it via `#[path]`, so instead those unit tests live
+//! here.
+//!
+//! To prevent tidy from complaining about this file not being named `tests.rs`, it lives inside a
+//! submodule directory named `tests`.
+
 use crate::utils::shared_helpers::parse_value_from_args;
 
 #[test]
diff --git a/src/build_helper/src/npm.rs b/src/build_helper/src/npm.rs
index dedef40978d..86cf6183bd0 100644
--- a/src/build_helper/src/npm.rs
+++ b/src/build_helper/src/npm.rs
@@ -3,23 +3,34 @@ use std::path::{Path, PathBuf};
 use std::process::Command;
 use std::{fs, io};
 
-/// Install an exact package version, and return the path of `node_modules`.
-pub fn install_one(
-    out_dir: &Path,
-    npm_bin: &Path,
-    pkg_name: &str,
-    pkg_version: &str,
-) -> Result<PathBuf, io::Error> {
+use crate::ci::CiEnv;
+
+/// Install all the npm deps, and return the path of `node_modules`.
+pub fn install(src_root_path: &Path, out_dir: &Path, npm: &Path) -> Result<PathBuf, io::Error> {
     let nm_path = out_dir.join("node_modules");
-    let _ = fs::create_dir(&nm_path);
-    let mut child = Command::new(npm_bin)
-        .arg("install")
-        .arg("--audit=false")
-        .arg("--fund=false")
-        .arg(format!("{pkg_name}@{pkg_version}"))
-        .current_dir(out_dir)
-        .spawn()?;
-    let exit_status = child.wait()?;
+    let copy_to_build = |p| {
+        fs::copy(src_root_path.join(p), out_dir.join(p)).map_err(|e| {
+            eprintln!("unable to copy {p:?} to build directory: {e:?}");
+            e
+        })
+    };
+    // copy stuff to the output directory to make node_modules get put there.
+    copy_to_build("package.json")?;
+    copy_to_build("package-lock.json")?;
+
+    let mut cmd = Command::new(npm);
+    if CiEnv::is_ci() {
+        // `npm ci` redownloads every time and thus is too slow for local development.
+        cmd.arg("ci");
+    } else {
+        cmd.arg("install");
+    }
+    // disable a bunch of things we don't want.
+    // this makes tidy output less noisy, and also significantly improves runtime
+    // of repeated tidy invokations.
+    cmd.args(&["--audit=false", "--save=false", "--fund=false"]);
+    cmd.current_dir(out_dir);
+    let exit_status = cmd.spawn()?.wait()?;
     if !exit_status.success() {
         eprintln!("npm install did not exit successfully");
         return Err(io::Error::other(Box::<dyn Error + Send + Sync>::from(format!(
diff --git a/src/ci/citool/src/jobs.rs b/src/ci/citool/src/jobs.rs
index 410274227e4..47516cbc1f4 100644
--- a/src/ci/citool/src/jobs.rs
+++ b/src/ci/citool/src/jobs.rs
@@ -1,9 +1,9 @@
 #[cfg(test)]
 mod tests;
 
-use std::collections::BTreeMap;
+use std::collections::{BTreeMap, HashSet};
 
-use anyhow::Context as _;
+use anyhow::{Context as _, anyhow};
 use serde_yaml::Value;
 
 use crate::GitHubContext;
@@ -85,6 +85,10 @@ impl JobDatabase {
             .cloned()
             .collect()
     }
+
+    fn find_auto_job_by_name(&self, job_name: &str) -> Option<&Job> {
+        self.auto_jobs.iter().find(|job| job.name == job_name)
+    }
 }
 
 pub fn load_job_db(db: &str) -> anyhow::Result<JobDatabase> {
@@ -97,14 +101,118 @@ pub fn load_job_db(db: &str) -> anyhow::Result<JobDatabase> {
         db.apply_merge().context("failed to apply merge keys")
     };
 
-    // Apply merge twice to handle nested merges
+    // Apply merge twice to handle nested merges up to depth 2.
     apply_merge(&mut db)?;
     apply_merge(&mut db)?;
 
-    let db: JobDatabase = serde_yaml::from_value(db).context("failed to parse job database")?;
+    let mut db: JobDatabase = serde_yaml::from_value(db).context("failed to parse job database")?;
+
+    register_pr_jobs_as_auto_jobs(&mut db)?;
+
+    validate_job_database(&db)?;
+
     Ok(db)
 }
 
+/// Maintain invariant that PR CI jobs must be a subset of Auto CI jobs modulo carve-outs.
+///
+/// When PR jobs are auto-registered as Auto jobs, they will have `continue_on_error` overridden to
+/// be `false` to avoid wasting Auto CI resources.
+///
+/// When a job is already both a PR job and a auto job, we will post-validate their "equivalence
+/// modulo certain carve-outs" in [`validate_job_database`].
+///
+/// This invariant is important to make sure that it's not easily possible (without modifying
+/// `citool`) to have PRs with red PR-only CI jobs merged into `master`, causing all subsequent PR
+/// CI runs to be red until the cause is fixed.
+fn register_pr_jobs_as_auto_jobs(db: &mut JobDatabase) -> anyhow::Result<()> {
+    for pr_job in &db.pr_jobs {
+        // It's acceptable to "override" a PR job in Auto job, for instance, `x86_64-gnu-tools` will
+        // receive an additional `DEPLOY_TOOLSTATES_JSON: toolstates-linux.json` env when under Auto
+        // environment versus PR environment.
+        if db.find_auto_job_by_name(&pr_job.name).is_some() {
+            continue;
+        }
+
+        let auto_registered_job = Job { continue_on_error: Some(false), ..pr_job.clone() };
+        db.auto_jobs.push(auto_registered_job);
+    }
+
+    Ok(())
+}
+
+fn validate_job_database(db: &JobDatabase) -> anyhow::Result<()> {
+    fn ensure_no_duplicate_job_names(section: &str, jobs: &Vec<Job>) -> anyhow::Result<()> {
+        let mut job_names = HashSet::new();
+        for job in jobs {
+            let job_name = job.name.as_str();
+            if !job_names.insert(job_name) {
+                return Err(anyhow::anyhow!(
+                    "duplicate job name `{job_name}` in section `{section}`"
+                ));
+            }
+        }
+        Ok(())
+    }
+
+    ensure_no_duplicate_job_names("pr", &db.pr_jobs)?;
+    ensure_no_duplicate_job_names("auto", &db.auto_jobs)?;
+    ensure_no_duplicate_job_names("try", &db.try_jobs)?;
+    ensure_no_duplicate_job_names("optional", &db.optional_jobs)?;
+
+    fn equivalent_modulo_carve_out(pr_job: &Job, auto_job: &Job) -> anyhow::Result<()> {
+        let Job {
+            name,
+            os,
+            only_on_channel,
+            free_disk,
+            doc_url,
+            codebuild,
+
+            // Carve-out configs allowed to be different.
+            env: _,
+            continue_on_error: _,
+        } = pr_job;
+
+        if *name == auto_job.name
+            && *os == auto_job.os
+            && *only_on_channel == auto_job.only_on_channel
+            && *free_disk == auto_job.free_disk
+            && *doc_url == auto_job.doc_url
+            && *codebuild == auto_job.codebuild
+        {
+            Ok(())
+        } else {
+            Err(anyhow!(
+                "PR job `{}` differs from corresponding Auto job `{}` in configuration other than `continue_on_error` and `env`",
+                pr_job.name,
+                auto_job.name
+            ))
+        }
+    }
+
+    for pr_job in &db.pr_jobs {
+        // At this point, any PR job must also be an Auto job, auto-registered or overridden.
+        let auto_job = db
+            .find_auto_job_by_name(&pr_job.name)
+            .expect("PR job must either be auto-registered as Auto job or overridden");
+
+        equivalent_modulo_carve_out(pr_job, auto_job)?;
+    }
+
+    // Auto CI jobs must all "fail-fast" to avoid wasting Auto CI resources. For instance, `tidy`.
+    for auto_job in &db.auto_jobs {
+        if auto_job.continue_on_error == Some(true) {
+            return Err(anyhow!(
+                "Auto job `{}` cannot have `continue_on_error: true`",
+                auto_job.name
+            ));
+        }
+    }
+
+    Ok(())
+}
+
 /// Representation of a job outputted to a GitHub Actions workflow.
 #[derive(serde::Serialize, Debug)]
 struct GithubActionsJob {
diff --git a/src/ci/citool/src/jobs/tests.rs b/src/ci/citool/src/jobs/tests.rs
index 63ac508b632..f1f6274e1ed 100644
--- a/src/ci/citool/src/jobs/tests.rs
+++ b/src/ci/citool/src/jobs/tests.rs
@@ -1,3 +1,4 @@
+use std::collections::BTreeMap;
 use std::path::Path;
 
 use super::Job;
@@ -146,3 +147,222 @@ fn validate_jobs() {
         panic!("Job validation failed:\n{error_messages}");
     }
 }
+
+#[test]
+fn pr_job_implies_auto_job() {
+    let db = load_job_db(
+        r#"
+envs:
+  pr:
+  try:
+  auto:
+  optional:
+
+pr:
+    - name: pr-ci-a
+      os: ubuntu
+      env: {}
+try:
+auto:
+optional:
+"#,
+    )
+    .unwrap();
+
+    assert_eq!(db.auto_jobs.iter().map(|j| j.name.as_str()).collect::<Vec<_>>(), vec!["pr-ci-a"])
+}
+
+#[test]
+fn implied_auto_job_keeps_env_and_fails_fast() {
+    let db = load_job_db(
+        r#"
+envs:
+  pr:
+  try:
+  auto:
+  optional:
+
+pr:
+    - name: tidy
+      env:
+        DEPLOY_TOOLSTATES_JSON: toolstates-linux.json
+      continue_on_error: true
+      os: ubuntu
+try:
+auto:
+optional:
+"#,
+    )
+    .unwrap();
+
+    assert_eq!(db.auto_jobs.iter().map(|j| j.name.as_str()).collect::<Vec<_>>(), vec!["tidy"]);
+    assert_eq!(db.auto_jobs[0].continue_on_error, Some(false));
+    assert_eq!(
+        db.auto_jobs[0].env,
+        BTreeMap::from([(
+            "DEPLOY_TOOLSTATES_JSON".to_string(),
+            serde_yaml::Value::String("toolstates-linux.json".to_string())
+        )])
+    );
+}
+
+#[test]
+#[should_panic = "duplicate"]
+fn duplicate_job_name() {
+    let _ = load_job_db(
+        r#"
+envs:
+  pr:
+  try:
+  auto:
+
+
+pr:
+    - name: pr-ci-a
+      os: ubuntu
+      env: {}
+    - name: pr-ci-a
+      os: ubuntu
+      env: {}
+try:
+auto:
+optional:
+"#,
+    )
+    .unwrap();
+}
+
+#[test]
+fn auto_job_can_override_pr_job_spec() {
+    let db = load_job_db(
+        r#"
+envs:
+  pr:
+  try:
+  auto:
+  optional:
+
+pr:
+    - name: tidy
+      os: ubuntu
+      env: {}
+try:
+auto:
+    - name: tidy
+      env:
+        DEPLOY_TOOLSTATES_JSON: toolstates-linux.json
+      continue_on_error: false
+      os: ubuntu
+optional:
+"#,
+    )
+    .unwrap();
+
+    assert_eq!(db.auto_jobs.iter().map(|j| j.name.as_str()).collect::<Vec<_>>(), vec!["tidy"]);
+    assert_eq!(db.auto_jobs[0].continue_on_error, Some(false));
+    assert_eq!(
+        db.auto_jobs[0].env,
+        BTreeMap::from([(
+            "DEPLOY_TOOLSTATES_JSON".to_string(),
+            serde_yaml::Value::String("toolstates-linux.json".to_string())
+        )])
+    );
+}
+
+#[test]
+fn compatible_divergence_pr_auto_job() {
+    let db = load_job_db(
+        r#"
+envs:
+  pr:
+  try:
+  auto:
+  optional:
+
+pr:
+    - name: tidy
+      continue_on_error: true
+      env:
+        ENV_ALLOWED_TO_DIFFER: "hello world"
+      os: ubuntu
+try:
+auto:
+    - name: tidy
+      continue_on_error: false
+      env:
+        ENV_ALLOWED_TO_DIFFER: "goodbye world"
+      os: ubuntu
+optional:
+"#,
+    )
+    .unwrap();
+
+    // `continue_on_error` and `env` are carve-outs *allowed* to diverge between PR and Auto job of
+    // the same name. Should load successfully.
+
+    assert_eq!(db.auto_jobs.iter().map(|j| j.name.as_str()).collect::<Vec<_>>(), vec!["tidy"]);
+    assert_eq!(db.auto_jobs[0].continue_on_error, Some(false));
+    assert_eq!(
+        db.auto_jobs[0].env,
+        BTreeMap::from([(
+            "ENV_ALLOWED_TO_DIFFER".to_string(),
+            serde_yaml::Value::String("goodbye world".to_string())
+        )])
+    );
+}
+
+#[test]
+#[should_panic = "differs"]
+fn incompatible_divergence_pr_auto_job() {
+    // `os` is not one of the carve-out options allowed to diverge. This should fail.
+    let _ = load_job_db(
+        r#"
+envs:
+  pr:
+  try:
+  auto:
+  optional:
+
+pr:
+    - name: tidy
+      continue_on_error: true
+      env:
+        ENV_ALLOWED_TO_DIFFER: "hello world"
+      os: ubuntu
+try:
+auto:
+    - name: tidy
+      continue_on_error: false
+      env:
+        ENV_ALLOWED_TO_DIFFER: "goodbye world"
+      os: windows
+optional:
+"#,
+    )
+    .unwrap();
+}
+
+#[test]
+#[should_panic = "cannot have `continue_on_error: true`"]
+fn auto_job_continue_on_error() {
+    // Auto CI jobs must fail-fast.
+    let _ = load_job_db(
+        r#"
+envs:
+  pr:
+  try:
+  auto:
+  optional:
+
+pr:
+try:
+auto:
+    - name: tidy
+      continue_on_error: true
+      os: windows
+      env: {}
+optional:
+"#,
+    )
+    .unwrap();
+}
diff --git a/src/ci/citool/tests/jobs.rs b/src/ci/citool/tests/jobs.rs
index dbaf13d4f42..24e0b85cab2 100644
--- a/src/ci/citool/tests/jobs.rs
+++ b/src/ci/citool/tests/jobs.rs
@@ -6,7 +6,7 @@ const TEST_JOBS_YML_PATH: &str = concat!(env!("CARGO_MANIFEST_DIR"), "/tests/tes
 fn auto_jobs() {
     let stdout = get_matrix("push", "commit", "refs/heads/auto");
     insta::assert_snapshot!(stdout, @r#"
-    jobs=[{"name":"aarch64-gnu","full_name":"auto - aarch64-gnu","os":"ubuntu-22.04-arm","env":{"ARTIFACTS_AWS_ACCESS_KEY_ID":"AKIA46X5W6CZN24CBO55","AWS_REGION":"us-west-1","CACHES_AWS_ACCESS_KEY_ID":"AKIA46X5W6CZI5DHEBFL","DEPLOY_BUCKET":"rust-lang-ci2","TOOLSTATE_PUBLISH":1},"free_disk":true},{"name":"x86_64-gnu-llvm-18-1","full_name":"auto - x86_64-gnu-llvm-18-1","os":"ubuntu-24.04","env":{"ARTIFACTS_AWS_ACCESS_KEY_ID":"AKIA46X5W6CZN24CBO55","AWS_REGION":"us-west-1","CACHES_AWS_ACCESS_KEY_ID":"AKIA46X5W6CZI5DHEBFL","DEPLOY_BUCKET":"rust-lang-ci2","DOCKER_SCRIPT":"stage_2_test_set1.sh","IMAGE":"x86_64-gnu-llvm-18","READ_ONLY_SRC":"0","RUST_BACKTRACE":1,"TOOLSTATE_PUBLISH":1},"free_disk":true},{"name":"aarch64-apple","full_name":"auto - aarch64-apple","os":"macos-14","env":{"ARTIFACTS_AWS_ACCESS_KEY_ID":"AKIA46X5W6CZN24CBO55","AWS_REGION":"us-west-1","CACHES_AWS_ACCESS_KEY_ID":"AKIA46X5W6CZI5DHEBFL","DEPLOY_BUCKET":"rust-lang-ci2","MACOSX_DEPLOYMENT_TARGET":11.0,"MACOSX_STD_DEPLOYMENT_TARGET":11.0,"NO_DEBUG_ASSERTIONS":1,"NO_LLVM_ASSERTIONS":1,"NO_OVERFLOW_CHECKS":1,"RUSTC_RETRY_LINKER_ON_SEGFAULT":1,"RUST_CONFIGURE_ARGS":"--enable-sanitizers --enable-profiler --set rust.jemalloc","SCRIPT":"./x.py --stage 2 test --host=aarch64-apple-darwin --target=aarch64-apple-darwin","SELECT_XCODE":"/Applications/Xcode_15.4.app","TOOLSTATE_PUBLISH":1,"USE_XCODE_CLANG":1}},{"name":"dist-i686-msvc","full_name":"auto - dist-i686-msvc","os":"windows-2022","env":{"ARTIFACTS_AWS_ACCESS_KEY_ID":"AKIA46X5W6CZN24CBO55","AWS_REGION":"us-west-1","CACHES_AWS_ACCESS_KEY_ID":"AKIA46X5W6CZI5DHEBFL","CODEGEN_BACKENDS":"llvm,cranelift","DEPLOY_BUCKET":"rust-lang-ci2","DIST_REQUIRE_ALL_TOOLS":1,"RUST_CONFIGURE_ARGS":"--build=i686-pc-windows-msvc --host=i686-pc-windows-msvc --target=i686-pc-windows-msvc,i586-pc-windows-msvc --enable-full-tools --enable-profiler","SCRIPT":"python x.py dist bootstrap --include-default-paths","TOOLSTATE_PUBLISH":1}}]
+    jobs=[{"name":"aarch64-gnu","full_name":"auto - aarch64-gnu","os":"ubuntu-22.04-arm","env":{"ARTIFACTS_AWS_ACCESS_KEY_ID":"AKIA46X5W6CZN24CBO55","AWS_REGION":"us-west-1","CACHES_AWS_ACCESS_KEY_ID":"AKIA46X5W6CZI5DHEBFL","DEPLOY_BUCKET":"rust-lang-ci2","TOOLSTATE_PUBLISH":1},"free_disk":true},{"name":"x86_64-gnu-llvm-18-1","full_name":"auto - x86_64-gnu-llvm-18-1","os":"ubuntu-24.04","env":{"ARTIFACTS_AWS_ACCESS_KEY_ID":"AKIA46X5W6CZN24CBO55","AWS_REGION":"us-west-1","CACHES_AWS_ACCESS_KEY_ID":"AKIA46X5W6CZI5DHEBFL","DEPLOY_BUCKET":"rust-lang-ci2","DOCKER_SCRIPT":"stage_2_test_set1.sh","IMAGE":"x86_64-gnu-llvm-18","READ_ONLY_SRC":"0","RUST_BACKTRACE":1,"TOOLSTATE_PUBLISH":1},"free_disk":true},{"name":"aarch64-apple","full_name":"auto - aarch64-apple","os":"macos-14","env":{"ARTIFACTS_AWS_ACCESS_KEY_ID":"AKIA46X5W6CZN24CBO55","AWS_REGION":"us-west-1","CACHES_AWS_ACCESS_KEY_ID":"AKIA46X5W6CZI5DHEBFL","DEPLOY_BUCKET":"rust-lang-ci2","MACOSX_DEPLOYMENT_TARGET":11.0,"MACOSX_STD_DEPLOYMENT_TARGET":11.0,"NO_DEBUG_ASSERTIONS":1,"NO_LLVM_ASSERTIONS":1,"NO_OVERFLOW_CHECKS":1,"RUSTC_RETRY_LINKER_ON_SEGFAULT":1,"RUST_CONFIGURE_ARGS":"--enable-sanitizers --enable-profiler --set rust.jemalloc","SCRIPT":"./x.py --stage 2 test --host=aarch64-apple-darwin --target=aarch64-apple-darwin","SELECT_XCODE":"/Applications/Xcode_15.4.app","TOOLSTATE_PUBLISH":1,"USE_XCODE_CLANG":1}},{"name":"dist-i686-msvc","full_name":"auto - dist-i686-msvc","os":"windows-2022","env":{"ARTIFACTS_AWS_ACCESS_KEY_ID":"AKIA46X5W6CZN24CBO55","AWS_REGION":"us-west-1","CACHES_AWS_ACCESS_KEY_ID":"AKIA46X5W6CZI5DHEBFL","CODEGEN_BACKENDS":"llvm,cranelift","DEPLOY_BUCKET":"rust-lang-ci2","DIST_REQUIRE_ALL_TOOLS":1,"RUST_CONFIGURE_ARGS":"--build=i686-pc-windows-msvc --host=i686-pc-windows-msvc --target=i686-pc-windows-msvc,i586-pc-windows-msvc --enable-full-tools --enable-profiler","SCRIPT":"python x.py dist bootstrap --include-default-paths","TOOLSTATE_PUBLISH":1}},{"name":"pr-check-1","full_name":"auto - pr-check-1","os":"ubuntu-24.04","env":{"ARTIFACTS_AWS_ACCESS_KEY_ID":"AKIA46X5W6CZN24CBO55","AWS_REGION":"us-west-1","CACHES_AWS_ACCESS_KEY_ID":"AKIA46X5W6CZI5DHEBFL","DEPLOY_BUCKET":"rust-lang-ci2","TOOLSTATE_PUBLISH":1},"continue_on_error":false,"free_disk":true},{"name":"pr-check-2","full_name":"auto - pr-check-2","os":"ubuntu-24.04","env":{"ARTIFACTS_AWS_ACCESS_KEY_ID":"AKIA46X5W6CZN24CBO55","AWS_REGION":"us-west-1","CACHES_AWS_ACCESS_KEY_ID":"AKIA46X5W6CZI5DHEBFL","DEPLOY_BUCKET":"rust-lang-ci2","TOOLSTATE_PUBLISH":1},"continue_on_error":false,"free_disk":true},{"name":"tidy","full_name":"auto - tidy","os":"ubuntu-24.04","env":{"ARTIFACTS_AWS_ACCESS_KEY_ID":"AKIA46X5W6CZN24CBO55","AWS_REGION":"us-west-1","CACHES_AWS_ACCESS_KEY_ID":"AKIA46X5W6CZI5DHEBFL","DEPLOY_BUCKET":"rust-lang-ci2","TOOLSTATE_PUBLISH":1},"continue_on_error":false,"free_disk":true,"doc_url":"https://foo.bar"}]
     run_type=auto
     "#);
 }
diff --git a/src/ci/docker/host-x86_64/pr-check-1/Dockerfile b/src/ci/docker/host-x86_64/pr-check-1/Dockerfile
index 8bbcc18e2be..f7d51fba861 100644
--- a/src/ci/docker/host-x86_64/pr-check-1/Dockerfile
+++ b/src/ci/docker/host-x86_64/pr-check-1/Dockerfile
@@ -27,10 +27,6 @@ COPY scripts/nodejs.sh /scripts/
 RUN sh /scripts/nodejs.sh /node
 ENV PATH="/node/bin:${PATH}"
 
-# Install es-check
-# Pin its version to prevent unrelated CI failures due to future es-check versions.
-RUN npm install es-check@6.1.1 eslint@8.6.0 typescript@5.7.3 -g
-
 COPY scripts/sccache.sh /scripts/
 RUN sh /scripts/sccache.sh
 
@@ -44,6 +40,7 @@ COPY host-x86_64/pr-check-1/validate-toolstate.sh /scripts/
 # We disable optimized compiler built-ins because that requires a C toolchain for the target.
 # We also skip the x86_64-unknown-linux-gnu target as it is well-tested by other jobs.
 ENV SCRIPT \
+  python3 ../x.py check bootstrap && \
   /scripts/check-default-config-profiles.sh && \
   python3 ../x.py build src/tools/build-manifest && \
   python3 ../x.py test --stage 0 src/tools/compiletest && \
@@ -52,7 +49,4 @@ ENV SCRIPT \
   python3 ../x.py check --set build.optimized-compiler-builtins=false core alloc std --target=aarch64-unknown-linux-gnu,i686-pc-windows-msvc,i686-unknown-linux-gnu,x86_64-apple-darwin,x86_64-pc-windows-gnu,x86_64-pc-windows-msvc && \
   /scripts/validate-toolstate.sh && \
   reuse --include-submodules lint && \
-  python3 ../x.py test collect-license-metadata && \
-  # Runs checks to ensure that there are no issues in our JS code.
-  es-check es2019 ../src/librustdoc/html/static/js/*.js && \
-  tsc --project ../src/librustdoc/html/static/js/tsconfig.json
+  python3 ../x.py test collect-license-metadata
diff --git a/src/ci/docker/host-x86_64/test-various/Dockerfile b/src/ci/docker/host-x86_64/test-various/Dockerfile
index 8d2e45ae497..662a26400ce 100644
--- a/src/ci/docker/host-x86_64/test-various/Dockerfile
+++ b/src/ci/docker/host-x86_64/test-various/Dockerfile
@@ -65,21 +65,20 @@ ENV WASM_SCRIPT python3 /checkout/x.py --stage 2 test --host='' --target $WASM_T
   tests/ui \
   tests/mir-opt \
   tests/codegen-units \
-  tests/codegen \
-  tests/assembly \
+  tests/codegen-llvm \
+  tests/assembly-llvm \
   library/core
 
 ENV NVPTX_TARGETS=nvptx64-nvidia-cuda
 ENV NVPTX_SCRIPT python3 /checkout/x.py --stage 2 test --host='' --target $NVPTX_TARGETS \
   tests/run-make \
-  tests/assembly
+  tests/assembly-llvm
 
 ENV MUSL_TARGETS=x86_64-unknown-linux-musl \
     CC_x86_64_unknown_linux_musl=x86_64-linux-musl-gcc \
     CXX_x86_64_unknown_linux_musl=x86_64-linux-musl-g++
 ENV MUSL_SCRIPT python3 /checkout/x.py --stage 2 test --host='' --target $MUSL_TARGETS
 
-COPY host-x86_64/test-various/uefi_qemu_test /uefi_qemu_test
 ENV UEFI_TARGETS=aarch64-unknown-uefi,i686-unknown-uefi,x86_64-unknown-uefi \
     CC_aarch64_unknown_uefi=clang-11 \
     CXX_aarch64_unknown_uefi=clang++-11 \
@@ -88,6 +87,8 @@ ENV UEFI_TARGETS=aarch64-unknown-uefi,i686-unknown-uefi,x86_64-unknown-uefi \
     CC_x86_64_unknown_uefi=clang-11 \
     CXX_x86_64_unknown_uefi=clang++-11
 ENV UEFI_SCRIPT python3 /checkout/x.py --stage 2 build --host='' --target $UEFI_TARGETS && \
-  python3 -u /uefi_qemu_test/run.py
+  python3 /checkout/x.py --stage 2 test tests/run-make/uefi-qemu/rmake.rs --target aarch64-unknown-uefi && \
+  python3 /checkout/x.py --stage 2 test tests/run-make/uefi-qemu/rmake.rs --target i686-unknown-uefi && \
+  python3 /checkout/x.py --stage 2 test tests/run-make/uefi-qemu/rmake.rs --target x86_64-unknown-uefi
 
 ENV SCRIPT $WASM_SCRIPT && $NVPTX_SCRIPT && $MUSL_SCRIPT && $UEFI_SCRIPT
diff --git a/src/ci/docker/host-x86_64/test-various/uefi_qemu_test/Cargo.lock b/src/ci/docker/host-x86_64/test-various/uefi_qemu_test/Cargo.lock
deleted file mode 100644
index 8b6a664ad93..00000000000
--- a/src/ci/docker/host-x86_64/test-various/uefi_qemu_test/Cargo.lock
+++ /dev/null
@@ -1,16 +0,0 @@
-# This file is automatically @generated by Cargo.
-# It is not intended for manual editing.
-version = 4
-
-[[package]]
-name = "r-efi"
-version = "5.2.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "74765f6d916ee2faa39bc8e68e4f3ed8949b48cccdac59983d287a7cb71ce9c5"
-
-[[package]]
-name = "uefi_qemu_test"
-version = "0.0.0"
-dependencies = [
- "r-efi",
-]
diff --git a/src/ci/docker/host-x86_64/test-various/uefi_qemu_test/Cargo.toml b/src/ci/docker/host-x86_64/test-various/uefi_qemu_test/Cargo.toml
deleted file mode 100644
index 1a8d0d94368..00000000000
--- a/src/ci/docker/host-x86_64/test-various/uefi_qemu_test/Cargo.toml
+++ /dev/null
@@ -1,10 +0,0 @@
-[package]
-name = "uefi_qemu_test"
-version = "0.0.0"
-edition = "2021"
-
-[workspace]
-resolver = "2"
-
-[dependencies]
-r-efi = "5.2.0"
diff --git a/src/ci/docker/host-x86_64/test-various/uefi_qemu_test/run.py b/src/ci/docker/host-x86_64/test-various/uefi_qemu_test/run.py
deleted file mode 100755
index 4f877389fbc..00000000000
--- a/src/ci/docker/host-x86_64/test-various/uefi_qemu_test/run.py
+++ /dev/null
@@ -1,140 +0,0 @@
-#!/usr/bin/env python3
-
-import os
-import shutil
-import subprocess
-import sys
-import tempfile
-
-from pathlib import Path
-
-TARGET_AARCH64 = "aarch64-unknown-uefi"
-TARGET_I686 = "i686-unknown-uefi"
-TARGET_X86_64 = "x86_64-unknown-uefi"
-
-
-def run(*cmd, capture=False, check=True, env=None, timeout=None):
-    """Print and run a command, optionally capturing the output."""
-    cmd = [str(p) for p in cmd]
-    print(" ".join(cmd))
-    return subprocess.run(
-        cmd, capture_output=capture, check=check, env=env, text=True, timeout=timeout
-    )
-
-
-def build_and_run(tmp_dir, target):
-    if target == TARGET_AARCH64:
-        boot_file_name = "bootaa64.efi"
-        ovmf_dir = Path("/usr/share/AAVMF")
-        ovmf_code = "AAVMF_CODE.fd"
-        ovmf_vars = "AAVMF_VARS.fd"
-        qemu = "qemu-system-aarch64"
-        machine = "virt"
-        cpu = "cortex-a72"
-    elif target == TARGET_I686:
-        boot_file_name = "bootia32.efi"
-        ovmf_dir = Path("/usr/share/OVMF")
-        ovmf_code = "OVMF32_CODE_4M.secboot.fd"
-        ovmf_vars = "OVMF32_VARS_4M.fd"
-        # The i686 target intentionally uses 64-bit qemu; the important
-        # difference is that the OVMF code provides a 32-bit environment.
-        qemu = "qemu-system-x86_64"
-        machine = "q35"
-        cpu = "qemu64"
-    elif target == TARGET_X86_64:
-        boot_file_name = "bootx64.efi"
-        ovmf_dir = Path("/usr/share/OVMF")
-        ovmf_code = "OVMF_CODE.fd"
-        ovmf_vars = "OVMF_VARS.fd"
-        qemu = "qemu-system-x86_64"
-        machine = "q35"
-        cpu = "qemu64"
-    else:
-        raise KeyError("invalid target")
-
-    host_artifacts = Path("/checkout/obj/build/x86_64-unknown-linux-gnu")
-    stage0 = host_artifacts / "stage0/bin"
-    stage2 = host_artifacts / "stage2/bin"
-
-    env = dict(os.environ)
-    env["PATH"] = "{}:{}:{}".format(stage2, stage0, env["PATH"])
-
-    # Copy the test create into `tmp_dir`.
-    test_crate = Path(tmp_dir) / "uefi_qemu_test"
-    shutil.copytree("/uefi_qemu_test", test_crate)
-
-    # Build the UEFI executable.
-    run(
-        "cargo",
-        "build",
-        "--manifest-path",
-        test_crate / "Cargo.toml",
-        "--target",
-        target,
-        env=env,
-    )
-
-    # Create a mock EFI System Partition in a subdirectory.
-    esp = test_crate / "esp"
-    boot = esp / "efi/boot"
-    os.makedirs(boot, exist_ok=True)
-
-    # Copy the executable into the ESP.
-    src_exe_path = test_crate / "target" / target / "debug/uefi_qemu_test.efi"
-    shutil.copy(src_exe_path, boot / boot_file_name)
-    print(src_exe_path, boot / boot_file_name)
-
-    # Select the appropriate EDK2 build.
-    ovmf_code = ovmf_dir / ovmf_code
-    ovmf_vars = ovmf_dir / ovmf_vars
-
-    # Make a writable copy of the vars file. aarch64 doesn't boot
-    # correctly with read-only vars.
-    ovmf_rw_vars = Path(tmp_dir) / "vars.fd"
-    shutil.copy(ovmf_vars, ovmf_rw_vars)
-
-    # Run the executable in QEMU and capture the output.
-    output = run(
-        qemu,
-        "-machine",
-        machine,
-        "-cpu",
-        cpu,
-        "-display",
-        "none",
-        "-serial",
-        "stdio",
-        "-drive",
-        f"if=pflash,format=raw,readonly=on,file={ovmf_code}",
-        "-drive",
-        f"if=pflash,format=raw,readonly=off,file={ovmf_rw_vars}",
-        "-drive",
-        f"format=raw,file=fat:rw:{esp}",
-        capture=True,
-        check=True,
-        # Set a timeout to kill the VM in case something goes wrong.
-        timeout=60,
-    ).stdout
-
-    if "Hello World!" in output:
-        print("VM produced expected output")
-    else:
-        print("unexpected VM output:")
-        print("---start---")
-        print(output)
-        print("---end---")
-        sys.exit(1)
-
-
-def main():
-    targets = [TARGET_AARCH64, TARGET_I686, TARGET_X86_64]
-
-    for target in targets:
-        # Create a temporary directory so that we have a writeable
-        # workspace.
-        with tempfile.TemporaryDirectory() as tmp_dir:
-            build_and_run(tmp_dir, target)
-
-
-if __name__ == "__main__":
-    main()
diff --git a/src/ci/docker/host-x86_64/test-various/uefi_qemu_test/src/main.rs b/src/ci/docker/host-x86_64/test-various/uefi_qemu_test/src/main.rs
deleted file mode 100644
index 89e4393cb5c..00000000000
--- a/src/ci/docker/host-x86_64/test-various/uefi_qemu_test/src/main.rs
+++ /dev/null
@@ -1,46 +0,0 @@
-// Code is adapted from this hello world example:
-// https://doc.rust-lang.org/nightly/rustc/platform-support/unknown-uefi.html
-
-#![no_main]
-#![no_std]
-
-use core::{panic, ptr};
-
-use r_efi::efi::{Char16, Handle, RESET_SHUTDOWN, Status, SystemTable};
-
-#[panic_handler]
-fn panic_handler(_info: &panic::PanicInfo) -> ! {
-    loop {}
-}
-
-#[export_name = "efi_main"]
-pub extern "C" fn main(_h: Handle, st: *mut SystemTable) -> Status {
-    let s = [
-        0x0048u16, 0x0065u16, 0x006cu16, 0x006cu16, 0x006fu16, // "Hello"
-        0x0020u16, //                                             " "
-        0x0057u16, 0x006fu16, 0x0072u16, 0x006cu16, 0x0064u16, // "World"
-        0x0021u16, //                                             "!"
-        0x000au16, //                                             "\n"
-        0x0000u16, //                                             NUL
-    ];
-
-    // Print "Hello World!".
-    let r = unsafe { ((*(*st).con_out).output_string)((*st).con_out, s.as_ptr() as *mut Char16) };
-    if r.is_error() {
-        return r;
-    }
-
-    // Shut down.
-    unsafe {
-        ((*((*st).runtime_services)).reset_system)(
-            RESET_SHUTDOWN,
-            Status::SUCCESS,
-            0,
-            ptr::null_mut(),
-        );
-    }
-
-    // This should never be reached because `reset_system` should never
-    // return, so fail with an error if we get here.
-    Status::UNSUPPORTED
-}
diff --git a/src/ci/docker/host-x86_64/tidy/Dockerfile b/src/ci/docker/host-x86_64/tidy/Dockerfile
index dbb950cbe0c..ee1ae5410ee 100644
--- a/src/ci/docker/host-x86_64/tidy/Dockerfile
+++ b/src/ci/docker/host-x86_64/tidy/Dockerfile
@@ -45,4 +45,4 @@ RUN bash -c 'npm install -g eslint@$(cat /tmp/eslint.version)'
 # NOTE: intentionally uses python2 for x.py so we can test it still works.
 # validate-toolstate only runs in our CI, so it's ok for it to only support python3.
 ENV SCRIPT TIDY_PRINT_DIFF=1 python2.7 ../x.py test --stage 0 \
-  src/tools/tidy tidyselftest --extra-checks=py,cpp
+  src/tools/tidy tidyselftest --extra-checks=py,cpp,js
diff --git a/src/ci/github-actions/jobs.yml b/src/ci/github-actions/jobs.yml
index 0a6ebe44b3d..011688487b4 100644
--- a/src/ci/github-actions/jobs.yml
+++ b/src/ci/github-actions/jobs.yml
@@ -124,9 +124,16 @@ jobs:
     <<: *job-linux-36c-codebuild
 
 
-# Jobs that run on each push to a pull request (PR)
-# These jobs automatically inherit envs.pr, to avoid repeating
-# it in each job definition.
+# Jobs that run on each push to a pull request (PR).
+#
+# These jobs automatically inherit envs.pr, to avoid repeating it in each job
+# definition.
+#
+# PR CI jobs will be automatically registered as Auto CI jobs or overriden. When
+# automatically registered, the PR CI job configuration will be copied as an
+# Auto CI job but with `continue_on_error` overriden to `false` (to fail-fast).
+# When overriden, `citool` will check for equivalence between the PR and CI job
+# of the same name modulo `continue_on_error` and `env`.
 pr:
   - name: pr-check-1
     <<: *job-linux-4c
@@ -177,9 +184,15 @@ optional:
       IMAGE: pr-check-1
     <<: *job-linux-4c
 
-# Main CI jobs that have to be green to merge a commit into master
-# These jobs automatically inherit envs.auto, to avoid repeating
-# it in each job definition.
+# Main CI jobs that have to be green to merge a commit into master.
+#
+# These jobs automatically inherit envs.auto, to avoid repeating it in each job
+# definition.
+#
+# Auto jobs may not specify `continue_on_error: true`, and thus will fail-fast.
+#
+# Unless explicitly overriden, PR CI jobs will be automatically registered as
+# Auto CI jobs.
 auto:
   #############################
   #   Linux/Docker builders   #
diff --git a/src/doc/rustc-dev-guide/rust-version b/src/doc/rustc-dev-guide/rust-version
index 3f10132b684..ce9f984e637 100644
--- a/src/doc/rustc-dev-guide/rust-version
+++ b/src/doc/rustc-dev-guide/rust-version
@@ -1 +1 @@
-fd2eb391d032181459773f3498c17b198513e0d0
+efd420c770bb179537c01063e98cb6990c439654
diff --git a/src/doc/rustc-dev-guide/src/asm.md b/src/doc/rustc-dev-guide/src/asm.md
index eec9d448b0c..1bb493e73d5 100644
--- a/src/doc/rustc-dev-guide/src/asm.md
+++ b/src/doc/rustc-dev-guide/src/asm.md
@@ -155,9 +155,9 @@ can't know ahead of time whether a function will require a frame/base pointer.
 
 Various tests for inline assembly are available:
 
-- `tests/assembly/asm`
+- `tests/assembly-llvm/asm`
 - `tests/ui/asm`
-- `tests/codegen/asm-*`
+- `tests/codegen-llvm/asm-*`
 
 Every architecture supported by inline assembly must have exhaustive tests in
-`tests/assembly/asm` which test all combinations of register classes and types.
+`tests/assembly-llvm/asm` which test all combinations of register classes and types.
diff --git a/src/doc/rustc-dev-guide/src/autodiff/installation.md b/src/doc/rustc-dev-guide/src/autodiff/installation.md
index a550f6d233e..ddbb3a05424 100644
--- a/src/doc/rustc-dev-guide/src/autodiff/installation.md
+++ b/src/doc/rustc-dev-guide/src/autodiff/installation.md
@@ -25,7 +25,7 @@ rustup toolchain install nightly # enables -Z unstable-options
 You can then run our test cases:
 
 ```bash
-./x test --stage 1 tests/codegen/autodiff
+./x test --stage 1 tests/codegen-llvm/autodiff
 ./x test --stage 1 tests/pretty/autodiff
 ./x test --stage 1 tests/ui/autodiff
 ./x test --stage 1 tests/ui/feature-gates/feature-gate-autodiff.rs
diff --git a/src/doc/rustc-dev-guide/src/building/suggested.md b/src/doc/rustc-dev-guide/src/building/suggested.md
index 7f626314f71..c046161e77f 100644
--- a/src/doc/rustc-dev-guide/src/building/suggested.md
+++ b/src/doc/rustc-dev-guide/src/building/suggested.md
@@ -162,7 +162,7 @@ create a `.vim/coc-settings.json`. The settings can be edited with
 [`src/etc/rust_analyzer_settings.json`].
 
 Another way is without a plugin, and creating your own logic in your
-configuration. The following code will work for any checkout of rust-lang/rust (newer than Febuary 2025):
+configuration. The following code will work for any checkout of rust-lang/rust (newer than February 2025):
 
 ```lua
 local function expand_config_variables(option)
diff --git a/src/doc/rustc-dev-guide/src/external-repos.md b/src/doc/rustc-dev-guide/src/external-repos.md
index ecc65b26ab7..5fb7eeee8e3 100644
--- a/src/doc/rustc-dev-guide/src/external-repos.md
+++ b/src/doc/rustc-dev-guide/src/external-repos.md
@@ -40,27 +40,24 @@ implement a new tool feature or test, that should happen in one collective rustc
     * `portable-simd` ([sync script](https://github.com/rust-lang/portable-simd/blob/master/subtree-sync.sh))
     * `rustfmt`
     * `rustc_codegen_cranelift` ([sync script](https://github.com/rust-lang/rustc_codegen_cranelift/blob/113af154d459e41b3dc2c5d7d878e3d3a8f33c69/scripts/rustup.sh#L7))
-* Using the [josh] tool
-    * `miri` ([sync guide](https://github.com/rust-lang/miri/blob/master/CONTRIBUTING.md#advanced-topic-syncing-with-the-rustc-repo))
-    * `rust-analyzer` ([sync script](https://github.com/rust-lang/rust-analyzer/blob/2e13684be123eca7181aa48e043e185d8044a84a/xtask/src/release.rs#L147))
-    * `rustc-dev-guide` ([josh sync](#synchronizing-a-josh-subtree))
-    * `compiler-builtins` ([josh sync](#synchronizing-a-josh-subtree))
-    * `stdarch` ([josh sync](#synchronizing-a-josh-subtree))
+* Using the [josh](#synchronizing-a-josh-subtree) tool
+    * `miri`
+    * `rust-analyzer`
+    * `rustc-dev-guide`
+    * `compiler-builtins`
+    * `stdarch`
 
 ### Josh subtrees
 
-The [josh] tool is an alternative to git subtrees, which manages git history in a different way and scales better to larger repositories. Specific tooling is required to work with josh; you can check out the `miri` or `rust-analyzer` scripts linked above for inspiration. We provide a helper [`rustc-josh-sync`][josh-sync] tool to help with the synchronization, described [below](#synchronizing-a-josh-subtree).
+The [josh] tool is an alternative to git subtrees, which manages git history in a different way and scales better to larger repositories. Specific tooling is required to work with josh. We provide a helper [`rustc-josh-sync`][josh-sync] tool to help with the synchronization, described [below](#synchronizing-a-josh-subtree).
 
 ### Synchronizing a Josh subtree
 
 We use a dedicated tool called [`rustc-josh-sync`][josh-sync] for performing Josh subtree updates.
-Currently, we are migrating Josh repositories to it. So far, it is used in:
+The commands below can be used for all our Josh subtrees, although note that `miri`
+requires you to perform some [additional steps](https://github.com/rust-lang/miri/blob/master/CONTRIBUTING.md#advanced-topic-syncing-with-the-rustc-repo) during pulls.
 
-- compiler-builtins
-- rustc-dev-guide
-- stdarch
-
-To install the tool:
+You can install the tool using the following command:
 ```
 cargo install --locked --git https://github.com/rust-lang/josh-sync
 ```
@@ -80,6 +77,9 @@ switch to its repository checkout directory in your terminal).
 
 #### Performing push
 
+> NOTE:
+> Before you proceed, look at some guidance related to Git [on josh-sync README].
+
 1) Run the push command to create a branch named `<branch-name>` in a `rustc` fork under the `<gh-username>` account
     ```
     rustc-josh-sync push <branch-name> <gh-username>
@@ -173,3 +173,4 @@ the week leading up to the beta cut.
 [Toolstate chapter]: https://forge.rust-lang.org/infra/toolstate.html
 [josh]: https://josh-project.github.io/josh/intro.html
 [josh-sync]: https://github.com/rust-lang/josh-sync
+[on josh-sync README]: https://github.com/rust-lang/josh-sync#git-peculiarities
diff --git a/src/doc/rustc-dev-guide/src/hir/ambig-unambig-ty-and-consts.md b/src/doc/rustc-dev-guide/src/hir/ambig-unambig-ty-and-consts.md
index 709027883ae..d4f504ad2a9 100644
--- a/src/doc/rustc-dev-guide/src/hir/ambig-unambig-ty-and-consts.md
+++ b/src/doc/rustc-dev-guide/src/hir/ambig-unambig-ty-and-consts.md
@@ -38,7 +38,7 @@ Note that places 3 and 4 would never actually be possible to encounter as we alw
 This has a few failure modes:
 - People may write visitors which check for `GenericArg::Infer` but forget to check for `hir::TyKind/ConstArgKind::Infer`, only handling infers in ambig positions by accident.
 - People may write visitors which check for `hir::TyKind/ConstArgKind::Infer` but forget to check for `GenericArg::Infer`, only handling infers in unambig positions by accident.
-- People may write visitors which check for `GenerArg::Type/Const(TyKind/ConstArgKind::Infer)` and `GenerigArg::Infer`, not realising that we never represent inferred types/consts in ambig positions as a `GenericArg::Type/Const`.
+- People may write visitors which check for `GenericArg::Type/Const(TyKind/ConstArgKind::Infer)` and `GenericArg::Infer`, not realising that we never represent inferred types/consts in ambig positions as a `GenericArg::Type/Const`.
 - People may write visitors which check for *only* `TyKind::Infer` and not `ConstArgKind::Infer` forgetting that there are also inferred const arguments (and vice versa).
 
 To make writing HIR visitors less error prone when caring about inferred types/consts we have a relatively complex system:
@@ -60,4 +60,4 @@ This has a number of benefits:
 [ambig_arg]: https://doc.rust-lang.org/nightly/nightly-rustc/rustc_hir/hir/enum.AmbigArg.html
 [visit_ty]: https://doc.rust-lang.org/nightly/nightly-rustc/rustc_hir/intravisit/trait.Visitor.html#method.visit_ty
 [visit_const_arg]: https://doc.rust-lang.org/nightly/nightly-rustc/rustc_hir/intravisit/trait.Visitor.html#method.visit_const_arg
-[visit_infer]: https://doc.rust-lang.org/nightly/nightly-rustc/rustc_hir/intravisit/trait.Visitor.html#method.visit_infer
\ No newline at end of file
+[visit_infer]: https://doc.rust-lang.org/nightly/nightly-rustc/rustc_hir/intravisit/trait.Visitor.html#method.visit_infer
diff --git a/src/doc/rustc-dev-guide/src/llvm-coverage-instrumentation.md b/src/doc/rustc-dev-guide/src/llvm-coverage-instrumentation.md
index 28e0e7a908d..880363b94bf 100644
--- a/src/doc/rustc-dev-guide/src/llvm-coverage-instrumentation.md
+++ b/src/doc/rustc-dev-guide/src/llvm-coverage-instrumentation.md
@@ -117,7 +117,7 @@ human-readable coverage report.
 > directive, so they will be skipped if the profiler runtime has not been
 > [enabled in `bootstrap.toml`](#recommended-configtoml-settings).
 
-Finally, the [`tests/codegen/instrument-coverage/testprog.rs`] test compiles a simple Rust program
+Finally, the [`tests/codegen-llvm/instrument-coverage/testprog.rs`] test compiles a simple Rust program
 with `-C instrument-coverage` and compares the compiled program's LLVM IR to
 expected LLVM IR instructions and structured data for a coverage-enabled
 program, including various checks for Coverage Map-related metadata and the LLVM
@@ -136,4 +136,4 @@ and `mir-opt` tests can be refreshed by running:
 [`tests/coverage`]: https://github.com/rust-lang/rust/tree/master/tests/coverage
 [`src/tools/coverage-dump`]: https://github.com/rust-lang/rust/tree/master/src/tools/coverage-dump
 [`tests/coverage-run-rustdoc`]: https://github.com/rust-lang/rust/tree/master/tests/coverage-run-rustdoc
-[`tests/codegen/instrument-coverage/testprog.rs`]: https://github.com/rust-lang/rust/blob/master/tests/mir-opt/coverage/instrument_coverage.rs
+[`tests/codegen-llvm/instrument-coverage/testprog.rs`]: https://github.com/rust-lang/rust/blob/master/tests/mir-opt/coverage/instrument_coverage.rs
diff --git a/src/doc/rustc-dev-guide/src/offload/installation.md b/src/doc/rustc-dev-guide/src/offload/installation.md
index 1962314c70a..1e792de3c8c 100644
--- a/src/doc/rustc-dev-guide/src/offload/installation.md
+++ b/src/doc/rustc-dev-guide/src/offload/installation.md
@@ -40,7 +40,7 @@ This gives you a working LLVM build.
 ## Testing
 run
 ```
-./x test --stage 1 tests/codegen/gpu_offload
+./x test --stage 1 tests/codegen-llvm/gpu_offload
 ```
 
 ## Usage
diff --git a/src/doc/rustc-dev-guide/src/profile-guided-optimization.md b/src/doc/rustc-dev-guide/src/profile-guided-optimization.md
index d279786ac45..2fa81021045 100644
--- a/src/doc/rustc-dev-guide/src/profile-guided-optimization.md
+++ b/src/doc/rustc-dev-guide/src/profile-guided-optimization.md
@@ -132,7 +132,7 @@ There is also a [codegen test][codegen-test] that checks that some expected
 instrumentation artifacts show up in LLVM IR.
 
 [rmake-tests]: https://github.com/rust-lang/rust/tree/master/tests/run-make
-[codegen-test]: https://github.com/rust-lang/rust/blob/master/tests/codegen/pgo-instrumentation.rs
+[codegen-test]: https://github.com/rust-lang/rust/blob/master/tests/codegen-llvm/pgo-instrumentation.rs
 
 ## Additional information
 
diff --git a/src/doc/rustc-dev-guide/src/rustdoc-internals/rustdoc-test-suite.md b/src/doc/rustc-dev-guide/src/rustdoc-internals/rustdoc-test-suite.md
index 4f44cf1701c..3ec5ebd799e 100644
--- a/src/doc/rustc-dev-guide/src/rustdoc-internals/rustdoc-test-suite.md
+++ b/src/doc/rustc-dev-guide/src/rustdoc-internals/rustdoc-test-suite.md
@@ -20,7 +20,7 @@ Internally, [`compiletest`] invokes the supplementary checker script [`htmldocck
 
 Directives to HtmlDocCk are assertions that place constraints on the generated HTML.
 They look similar to those given to `compiletest` in that they take the form of `//@` comments
-but ultimately, they are completey distinct and processed by different programs.
+but ultimately, they are completely distinct and processed by different programs.
 
 [XPath] is used to query parts of the HTML document tree.
 
diff --git a/src/doc/rustc-dev-guide/src/sanitizers.md b/src/doc/rustc-dev-guide/src/sanitizers.md
index 664b4feac4f..29d9056c15d 100644
--- a/src/doc/rustc-dev-guide/src/sanitizers.md
+++ b/src/doc/rustc-dev-guide/src/sanitizers.md
@@ -76,7 +76,7 @@ implementation:
 ## Testing sanitizers
 
 Sanitizers are validated by code generation tests in
-[`tests/codegen/sanitize*.rs`][test-cg] and end-to-end functional tests in
+[`tests/codegen-llvm/sanitize*.rs`][test-cg] and end-to-end functional tests in
 [`tests/ui/sanitizer/`][test-ui] directory.
 
 Testing sanitizer functionality requires the sanitizer runtimes (built when
@@ -85,7 +85,7 @@ sanitizer. When sanitizer is unsupported on given target, sanitizers tests will
 be ignored. This behaviour is controlled by compiletest `needs-sanitizer-*`
 directives.
 
-[test-cg]: https://github.com/rust-lang/rust/tree/master/tests/codegen
+[test-cg]: https://github.com/rust-lang/rust/tree/master/tests/codegen-llvm
 [test-ui]: https://github.com/rust-lang/rust/tree/master/tests/ui/sanitizer
 
 ## Enabling sanitizer on a new target
diff --git a/src/doc/rustc-dev-guide/src/serialization.md b/src/doc/rustc-dev-guide/src/serialization.md
index 47667061eda..8eb37bbe20b 100644
--- a/src/doc/rustc-dev-guide/src/serialization.md
+++ b/src/doc/rustc-dev-guide/src/serialization.md
@@ -75,7 +75,7 @@ impl<D: Decoder> Decodable<D> for MyStruct {
 
 rustc has a lot of [arena allocated types].
 Deserializing these types isn't possible without access to the arena that they need to be allocated on.
-The [`TyDecoder`] and [`TyEncoder`] traits are supertraits of [`Decoder`] and [`Encoder`] that allow access to a [`TyCtxt`].
+The [`TyDecoder`] and [`TyEncoder`] traits are subtraits of [`Decoder`] and [`Encoder`] that allow access to a [`TyCtxt`].
 
 Types which contain `arena` allocated types can then bound the type parameter of their
 [`Encodable`] and [`Decodable`] implementations with these traits.
diff --git a/src/doc/rustc-dev-guide/src/tests/compiletest.md b/src/doc/rustc-dev-guide/src/tests/compiletest.md
index ded30234e70..a108dfdef9b 100644
--- a/src/doc/rustc-dev-guide/src/tests/compiletest.md
+++ b/src/doc/rustc-dev-guide/src/tests/compiletest.md
@@ -29,7 +29,7 @@ on if or how to run the test, what behavior to expect, and more. See
 [directives](directives.md) and the test suite documentation below for more details
 on these annotations.
 
-See the [Adding new tests](adding.md) and [Best practies](best-practices.md)
+See the [Adding new tests](adding.md) and [Best practices](best-practices.md)
 chapters for a tutorial on creating a new test and advice on writing a good
 test, and the [Running tests](running.md) chapter on how to run the test suite.
 
@@ -68,7 +68,7 @@ The following test suites are available, with links for more information:
 | [`pretty`](#pretty-printer-tests)         | Check pretty printing                                                                                               |
 | [`incremental`](#incremental-tests)       | Check incremental compilation behavior                                                                              |
 | [`debuginfo`](#debuginfo-tests)           | Check debuginfo generation running debuggers                                                                        |
-| [`codegen`](#codegen-tests)               | Check code generation                                                                                               |
+| [`codegen-*`](#codegen-tests)             | Check code generation                                                                                               |
 | [`codegen-units`](#codegen-units-tests)   | Check codegen unit partitioning                                                                                     |
 | [`assembly`](#assembly-tests)             | Check assembly output                                                                                               |
 | [`mir-opt`](#mir-opt-tests)               | Check MIR generation and optimizations                                                                              |
@@ -290,7 +290,7 @@ For example, `./x test tests/debuginfo -- --debugger gdb` will only test GDB com
 
 ### Codegen tests
 
-The tests in [`tests/codegen`] test LLVM code generation. They compile the test
+The tests in [`tests/codegen-llvm`] test LLVM code generation. They compile the test
 with the `--emit=llvm-ir` flag to emit LLVM IR. They then run the LLVM
 [FileCheck] tool. The test is annotated with various `// CHECK` comments to
 check the generated code. See the [FileCheck] documentation for a tutorial and
@@ -301,13 +301,13 @@ See also the [assembly tests](#assembly-tests) for a similar set of tests.
 If you need to work with `#![no_std]` cross-compiling tests, consult the
 [`minicore` test auxiliary](./minicore.md) chapter.
 
-[`tests/codegen`]: https://github.com/rust-lang/rust/tree/master/tests/codegen
+[`tests/codegen-llvm`]: https://github.com/rust-lang/rust/tree/master/tests/codegen-llvm
 [FileCheck]: https://llvm.org/docs/CommandGuide/FileCheck.html
 
 
 ### Assembly tests
 
-The tests in [`tests/assembly`] test LLVM assembly output. They compile the test
+The tests in [`tests/assembly-llvm`] test LLVM assembly output. They compile the test
 with the `--emit=asm` flag to emit a `.s` file with the assembly output. They
 then run the LLVM [FileCheck] tool.
 
@@ -324,7 +324,7 @@ See also the [codegen tests](#codegen-tests) for a similar set of tests.
 If you need to work with `#![no_std]` cross-compiling tests, consult the
 [`minicore` test auxiliary](./minicore.md) chapter.
 
-[`tests/assembly`]: https://github.com/rust-lang/rust/tree/master/tests/assembly
+[`tests/assembly-llvm`]: https://github.com/rust-lang/rust/tree/master/tests/assembly-llvm
 
 
 ### Codegen-units tests
diff --git a/src/doc/rustc-dev-guide/src/tests/ui.md b/src/doc/rustc-dev-guide/src/tests/ui.md
index 9bfc60e08a6..b1feef9ed0c 100644
--- a/src/doc/rustc-dev-guide/src/tests/ui.md
+++ b/src/doc/rustc-dev-guide/src/tests/ui.md
@@ -309,7 +309,8 @@ fn main((ؼ
 
 Use `//~?` to match an error without line information.
 `//~?` is precise and will not match errors if their line information is available.
-It should be preferred to using `error-pattern`, which is imprecise and non-exhaustive.
+For tests wishing to match against compiler diagnostics, error annotations should
+be preferred over //@ error-pattern, //@ error-pattern is imprecise and non-exhaustive.
 
 ```rust,ignore
 //@ compile-flags: --print yyyy
@@ -347,8 +348,6 @@ fn main() {
 }
 ```
 
-Use of `error-pattern` is not recommended in general.
-
 For strict testing of compile time output, try to use the line annotations `//~` as much as
 possible, including `//~?` annotations for diagnostics without spans.
 
@@ -359,7 +358,8 @@ Some of the compiler messages can stay uncovered by annotations in this mode.
 
 For checking runtime output, `//@ check-run-results` may be preferable.
 
-Only use `error-pattern` if none of the above works.
+Only use `error-pattern` if none of the above works, such as when finding a
+specific string pattern in a runtime panic output.
 
 Line annotations `//~` and `error-pattern` are compatible and can be used in the same test.
 
diff --git a/src/doc/rustc-dev-guide/src/ty_module/instantiating_binders.md b/src/doc/rustc-dev-guide/src/ty_module/instantiating_binders.md
index e3f091ca45f..0d1108c72e0 100644
--- a/src/doc/rustc-dev-guide/src/ty_module/instantiating_binders.md
+++ b/src/doc/rustc-dev-guide/src/ty_module/instantiating_binders.md
@@ -77,7 +77,7 @@ This end result is incorrect as we had two separate binders introducing their ow
 
 While in theory we could make this work it would be quite involved and more complex than the current setup, we would have to:
 - "rewrite" bound variables to have a higher `DebruijnIndex` whenever instantiating a `Binder`/`EarlyBinder` with a `Bound` ty/const/region 
-- When inferring an inference variable to a bound var, if that bound var is from a binder enterred after creating the infer var, we would have to lower the `DebruijnIndex` of the var.
+- When inferring an inference variable to a bound var, if that bound var is from a binder entered after creating the infer var, we would have to lower the `DebruijnIndex` of the var.
 - Separately track what binder an inference variable was created inside of, also what the innermost binder it can name parameters from (currently we only have to track the latter)
 - When resolving inference variables rewrite any bound variables according to the current binder depth of the infcx
 - Maybe more (while writing this list items kept getting added so it seems naive to think this is exhaustive)
diff --git a/src/doc/unstable-book/src/compiler-flags/offload.md b/src/doc/unstable-book/src/compiler-flags/offload.md
new file mode 100644
index 00000000000..4266e8c11a2
--- /dev/null
+++ b/src/doc/unstable-book/src/compiler-flags/offload.md
@@ -0,0 +1,8 @@
+# `offload`
+
+The tracking issue for this feature is: [#131513](https://github.com/rust-lang/rust/issues/131513).
+
+------------------------
+
+This feature will later allow you to run functions on GPUs. It is work in progress.
+Set the `-Zoffload=Enable` compiler flag to experiment with it.
diff --git a/src/etc/completions/x.fish b/src/etc/completions/x.fish
index 28a228d5464..a5e5bb8f09e 100644
--- a/src/etc/completions/x.fish
+++ b/src/etc/completions/x.fish
@@ -299,7 +299,7 @@ complete -c x -n "__fish_x_using_subcommand doc" -l skip-std-check-if-no-downloa
 complete -c x -n "__fish_x_using_subcommand doc" -s h -l help -d 'Print help (see more with \'--help\')'
 complete -c x -n "__fish_x_using_subcommand test" -l test-args -d 'extra arguments to be passed for the test tool being used (e.g. libtest, compiletest or rustdoc)' -r
 complete -c x -n "__fish_x_using_subcommand test" -l compiletest-rustc-args -d 'extra options to pass the compiler when running compiletest tests' -r
-complete -c x -n "__fish_x_using_subcommand test" -l extra-checks -d 'comma-separated list of other files types to check (accepts py, py:lint, py:fmt, shell, shell:lint, cpp, cpp:fmt, spellcheck)' -r
+complete -c x -n "__fish_x_using_subcommand test" -l extra-checks -d 'comma-separated list of other files types to check (accepts py, py:lint, py:fmt, shell, cpp, cpp:fmt, js, js:lint, js:typecheck, spellcheck)' -r
 complete -c x -n "__fish_x_using_subcommand test" -l compare-mode -d 'mode describing what file the actual ui output will be compared to' -r
 complete -c x -n "__fish_x_using_subcommand test" -l pass -d 'force {check,build,run}-pass tests to this mode' -r
 complete -c x -n "__fish_x_using_subcommand test" -l run -d 'whether to execute run-* tests' -r
diff --git a/src/etc/completions/x.ps1 b/src/etc/completions/x.ps1
index 0c9b3828273..4fee3bc0a86 100644
--- a/src/etc/completions/x.ps1
+++ b/src/etc/completions/x.ps1
@@ -345,7 +345,7 @@ Register-ArgumentCompleter -Native -CommandName 'x' -ScriptBlock {
         'x;test' {
             [CompletionResult]::new('--test-args', '--test-args', [CompletionResultType]::ParameterName, 'extra arguments to be passed for the test tool being used (e.g. libtest, compiletest or rustdoc)')
             [CompletionResult]::new('--compiletest-rustc-args', '--compiletest-rustc-args', [CompletionResultType]::ParameterName, 'extra options to pass the compiler when running compiletest tests')
-            [CompletionResult]::new('--extra-checks', '--extra-checks', [CompletionResultType]::ParameterName, 'comma-separated list of other files types to check (accepts py, py:lint, py:fmt, shell, shell:lint, cpp, cpp:fmt, spellcheck)')
+            [CompletionResult]::new('--extra-checks', '--extra-checks', [CompletionResultType]::ParameterName, 'comma-separated list of other files types to check (accepts py, py:lint, py:fmt, shell, cpp, cpp:fmt, js, js:lint, js:typecheck, spellcheck)')
             [CompletionResult]::new('--compare-mode', '--compare-mode', [CompletionResultType]::ParameterName, 'mode describing what file the actual ui output will be compared to')
             [CompletionResult]::new('--pass', '--pass', [CompletionResultType]::ParameterName, 'force {check,build,run}-pass tests to this mode')
             [CompletionResult]::new('--run', '--run', [CompletionResultType]::ParameterName, 'whether to execute run-* tests')
diff --git a/src/etc/completions/x.py.fish b/src/etc/completions/x.py.fish
index 43ae7424e27..e2e6ae05ee0 100644
--- a/src/etc/completions/x.py.fish
+++ b/src/etc/completions/x.py.fish
@@ -299,7 +299,7 @@ complete -c x.py -n "__fish_x.py_using_subcommand doc" -l skip-std-check-if-no-d
 complete -c x.py -n "__fish_x.py_using_subcommand doc" -s h -l help -d 'Print help (see more with \'--help\')'
 complete -c x.py -n "__fish_x.py_using_subcommand test" -l test-args -d 'extra arguments to be passed for the test tool being used (e.g. libtest, compiletest or rustdoc)' -r
 complete -c x.py -n "__fish_x.py_using_subcommand test" -l compiletest-rustc-args -d 'extra options to pass the compiler when running compiletest tests' -r
-complete -c x.py -n "__fish_x.py_using_subcommand test" -l extra-checks -d 'comma-separated list of other files types to check (accepts py, py:lint, py:fmt, shell, shell:lint, cpp, cpp:fmt, spellcheck)' -r
+complete -c x.py -n "__fish_x.py_using_subcommand test" -l extra-checks -d 'comma-separated list of other files types to check (accepts py, py:lint, py:fmt, shell, cpp, cpp:fmt, js, js:lint, js:typecheck, spellcheck)' -r
 complete -c x.py -n "__fish_x.py_using_subcommand test" -l compare-mode -d 'mode describing what file the actual ui output will be compared to' -r
 complete -c x.py -n "__fish_x.py_using_subcommand test" -l pass -d 'force {check,build,run}-pass tests to this mode' -r
 complete -c x.py -n "__fish_x.py_using_subcommand test" -l run -d 'whether to execute run-* tests' -r
diff --git a/src/etc/completions/x.py.ps1 b/src/etc/completions/x.py.ps1
index 4311e383d64..ea3aacc21c7 100644
--- a/src/etc/completions/x.py.ps1
+++ b/src/etc/completions/x.py.ps1
@@ -345,7 +345,7 @@ Register-ArgumentCompleter -Native -CommandName 'x.py' -ScriptBlock {
         'x.py;test' {
             [CompletionResult]::new('--test-args', '--test-args', [CompletionResultType]::ParameterName, 'extra arguments to be passed for the test tool being used (e.g. libtest, compiletest or rustdoc)')
             [CompletionResult]::new('--compiletest-rustc-args', '--compiletest-rustc-args', [CompletionResultType]::ParameterName, 'extra options to pass the compiler when running compiletest tests')
-            [CompletionResult]::new('--extra-checks', '--extra-checks', [CompletionResultType]::ParameterName, 'comma-separated list of other files types to check (accepts py, py:lint, py:fmt, shell, shell:lint, cpp, cpp:fmt, spellcheck)')
+            [CompletionResult]::new('--extra-checks', '--extra-checks', [CompletionResultType]::ParameterName, 'comma-separated list of other files types to check (accepts py, py:lint, py:fmt, shell, cpp, cpp:fmt, js, js:lint, js:typecheck, spellcheck)')
             [CompletionResult]::new('--compare-mode', '--compare-mode', [CompletionResultType]::ParameterName, 'mode describing what file the actual ui output will be compared to')
             [CompletionResult]::new('--pass', '--pass', [CompletionResultType]::ParameterName, 'force {check,build,run}-pass tests to this mode')
             [CompletionResult]::new('--run', '--run', [CompletionResultType]::ParameterName, 'whether to execute run-* tests')
diff --git a/src/etc/completions/x.py.zsh b/src/etc/completions/x.py.zsh
index aff35b31e21..32e986ad141 100644
--- a/src/etc/completions/x.py.zsh
+++ b/src/etc/completions/x.py.zsh
@@ -345,7 +345,7 @@ _arguments "${_arguments_options[@]}" : \
 _arguments "${_arguments_options[@]}" : \
 '*--test-args=[extra arguments to be passed for the test tool being used (e.g. libtest, compiletest or rustdoc)]:ARGS:_default' \
 '*--compiletest-rustc-args=[extra options to pass the compiler when running compiletest tests]:ARGS:_default' \
-'--extra-checks=[comma-separated list of other files types to check (accepts py, py\:lint, py\:fmt, shell, shell\:lint, cpp, cpp\:fmt, spellcheck)]:EXTRA_CHECKS:_default' \
+'--extra-checks=[comma-separated list of other files types to check (accepts py, py\:lint, py\:fmt, shell, cpp, cpp\:fmt, js, js\:lint, js\:typecheck, spellcheck)]:EXTRA_CHECKS:_default' \
 '--compare-mode=[mode describing what file the actual ui output will be compared to]:COMPARE MODE:_default' \
 '--pass=[force {check,build,run}-pass tests to this mode]:check | build | run:_default' \
 '--run=[whether to execute run-* tests]:auto | always | never:_default' \
diff --git a/src/etc/completions/x.zsh b/src/etc/completions/x.zsh
index 28ad00f3a0d..65995553276 100644
--- a/src/etc/completions/x.zsh
+++ b/src/etc/completions/x.zsh
@@ -345,7 +345,7 @@ _arguments "${_arguments_options[@]}" : \
 _arguments "${_arguments_options[@]}" : \
 '*--test-args=[extra arguments to be passed for the test tool being used (e.g. libtest, compiletest or rustdoc)]:ARGS:_default' \
 '*--compiletest-rustc-args=[extra options to pass the compiler when running compiletest tests]:ARGS:_default' \
-'--extra-checks=[comma-separated list of other files types to check (accepts py, py\:lint, py\:fmt, shell, shell\:lint, cpp, cpp\:fmt, spellcheck)]:EXTRA_CHECKS:_default' \
+'--extra-checks=[comma-separated list of other files types to check (accepts py, py\:lint, py\:fmt, shell, cpp, cpp\:fmt, js, js\:lint, js\:typecheck, spellcheck)]:EXTRA_CHECKS:_default' \
 '--compare-mode=[mode describing what file the actual ui output will be compared to]:COMPARE MODE:_default' \
 '--pass=[force {check,build,run}-pass tests to this mode]:check | build | run:_default' \
 '--run=[whether to execute run-* tests]:auto | always | never:_default' \
diff --git a/src/librustdoc/clean/mod.rs b/src/librustdoc/clean/mod.rs
index 1265a39d27b..14295ce0a31 100644
--- a/src/librustdoc/clean/mod.rs
+++ b/src/librustdoc/clean/mod.rs
@@ -36,6 +36,7 @@ use std::mem;
 
 use rustc_ast::token::{Token, TokenKind};
 use rustc_ast::tokenstream::{TokenStream, TokenTree};
+use rustc_attr_data_structures::{AttributeKind, find_attr};
 use rustc_data_structures::fx::{FxHashMap, FxHashSet, FxIndexMap, FxIndexSet, IndexEntry};
 use rustc_errors::codes::*;
 use rustc_errors::{FatalError, struct_span_code_err};
@@ -987,28 +988,17 @@ fn clean_proc_macro<'tcx>(
     kind: MacroKind,
     cx: &mut DocContext<'tcx>,
 ) -> ItemKind {
-    let attrs = cx.tcx.hir_attrs(item.hir_id());
-    if kind == MacroKind::Derive
-        && let Some(derive_name) =
-            hir_attr_lists(attrs, sym::proc_macro_derive).find_map(|mi| mi.ident())
-    {
-        *name = derive_name.name;
+    if kind != MacroKind::Derive {
+        return ProcMacroItem(ProcMacro { kind, helpers: vec![] });
     }
+    let attrs = cx.tcx.hir_attrs(item.hir_id());
+    let Some((trait_name, helper_attrs)) = find_attr!(attrs, AttributeKind::ProcMacroDerive { trait_name, helper_attrs, ..} => (*trait_name, helper_attrs))
+    else {
+        return ProcMacroItem(ProcMacro { kind, helpers: vec![] });
+    };
+    *name = trait_name;
+    let helpers = helper_attrs.iter().copied().collect();
 
-    let mut helpers = Vec::new();
-    for mi in hir_attr_lists(attrs, sym::proc_macro_derive) {
-        if !mi.has_name(sym::attributes) {
-            continue;
-        }
-
-        if let Some(list) = mi.meta_item_list() {
-            for inner_mi in list {
-                if let Some(ident) = inner_mi.ident() {
-                    helpers.push(ident.name);
-                }
-            }
-        }
-    }
     ProcMacroItem(ProcMacro { kind, helpers })
 }
 
@@ -1021,17 +1011,16 @@ fn clean_fn_or_proc_macro<'tcx>(
     cx: &mut DocContext<'tcx>,
 ) -> ItemKind {
     let attrs = cx.tcx.hir_attrs(item.hir_id());
-    let macro_kind = attrs.iter().find_map(|a| {
-        if a.has_name(sym::proc_macro) {
-            Some(MacroKind::Bang)
-        } else if a.has_name(sym::proc_macro_derive) {
-            Some(MacroKind::Derive)
-        } else if a.has_name(sym::proc_macro_attribute) {
-            Some(MacroKind::Attr)
-        } else {
-            None
-        }
-    });
+    let macro_kind = if find_attr!(attrs, AttributeKind::ProcMacro(..)) {
+        Some(MacroKind::Bang)
+    } else if find_attr!(attrs, AttributeKind::ProcMacroDerive { .. }) {
+        Some(MacroKind::Derive)
+    } else if find_attr!(attrs, AttributeKind::ProcMacroAttribute(..)) {
+        Some(MacroKind::Attr)
+    } else {
+        None
+    };
+
     match macro_kind {
         Some(kind) => clean_proc_macro(item, name, kind, cx),
         None => {
diff --git a/src/librustdoc/config.rs b/src/librustdoc/config.rs
index 986390dbaa0..57456e906de 100644
--- a/src/librustdoc/config.rs
+++ b/src/librustdoc/config.rs
@@ -173,6 +173,9 @@ pub(crate) struct Options {
 
     /// Arguments to be used when compiling doctests.
     pub(crate) doctest_build_args: Vec<String>,
+
+    /// Target modifiers.
+    pub(crate) target_modifiers: BTreeMap<OptionsTargetModifiers, String>,
 }
 
 impl fmt::Debug for Options {
@@ -846,6 +849,7 @@ impl Options {
             unstable_features,
             expanded_args: args,
             doctest_build_args,
+            target_modifiers,
         };
         let render_options = RenderOptions {
             output,
diff --git a/src/librustdoc/core.rs b/src/librustdoc/core.rs
index bd57bb21e63..e89733b2f6d 100644
--- a/src/librustdoc/core.rs
+++ b/src/librustdoc/core.rs
@@ -214,6 +214,7 @@ pub(crate) fn create_config(
         scrape_examples_options,
         expanded_args,
         remap_path_prefix,
+        target_modifiers,
         ..
     }: RustdocOptions,
     render_options: &RenderOptions,
@@ -277,6 +278,7 @@ pub(crate) fn create_config(
         } else {
             OutputTypes::new(&[])
         },
+        target_modifiers,
         ..Options::default()
     };
 
diff --git a/src/librustdoc/doctest.rs b/src/librustdoc/doctest.rs
index 38ba6b4503d..a32c2f7fb18 100644
--- a/src/librustdoc/doctest.rs
+++ b/src/librustdoc/doctest.rs
@@ -444,7 +444,7 @@ fn add_exe_suffix(input: String, target: &TargetTuple) -> String {
     let exe_suffix = match target {
         TargetTuple::TargetTuple(_) => Target::expect_builtin(target).options.exe_suffix,
         TargetTuple::TargetJson { contents, .. } => {
-            Target::from_json(contents.parse().unwrap()).unwrap().0.options.exe_suffix
+            Target::from_json(contents).unwrap().0.options.exe_suffix
         }
     };
     input + &exe_suffix
diff --git a/src/librustdoc/html/render/search_index.rs b/src/librustdoc/html/render/search_index.rs
index 3c9be29ccc3..e2f86b8a854 100644
--- a/src/librustdoc/html/render/search_index.rs
+++ b/src/librustdoc/html/render/search_index.rs
@@ -100,9 +100,22 @@ pub(crate) fn build_index(
     let crate_doc =
         short_markdown_summary(&krate.module.doc_value(), &krate.module.link_names(cache));
 
+    #[derive(Eq, Ord, PartialEq, PartialOrd)]
+    struct SerSymbolAsStr(Symbol);
+
+    impl Serialize for SerSymbolAsStr {
+        fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
+        where
+            S: Serializer,
+        {
+            self.0.as_str().serialize(serializer)
+        }
+    }
+
+    type AliasMap = BTreeMap<SerSymbolAsStr, Vec<usize>>;
     // Aliases added through `#[doc(alias = "...")]`. Since a few items can have the same alias,
     // we need the alias element to have an array of items.
-    let mut aliases: BTreeMap<String, Vec<usize>> = BTreeMap::new();
+    let mut aliases: AliasMap = BTreeMap::new();
 
     // Sort search index items. This improves the compressibility of the search index.
     cache.search_index.sort_unstable_by(|k1, k2| {
@@ -116,7 +129,7 @@ pub(crate) fn build_index(
     // Set up alias indexes.
     for (i, item) in cache.search_index.iter().enumerate() {
         for alias in &item.aliases[..] {
-            aliases.entry(alias.to_string()).or_default().push(i);
+            aliases.entry(SerSymbolAsStr(*alias)).or_default().push(i);
         }
     }
 
@@ -474,7 +487,7 @@ pub(crate) fn build_index(
         // The String is alias name and the vec is the list of the elements with this alias.
         //
         // To be noted: the `usize` elements are indexes to `items`.
-        aliases: &'a BTreeMap<String, Vec<usize>>,
+        aliases: &'a AliasMap,
         // Used when a type has more than one impl with an associated item with the same name.
         associated_item_disambiguators: &'a Vec<(usize, String)>,
         // A list of shard lengths encoded as vlqhex. See the comment in write_vlqhex_to_string
diff --git a/src/librustdoc/html/static/js/main.js b/src/librustdoc/html/static/js/main.js
index 3c4af0dc612..8e3d07b3a1c 100644
--- a/src/librustdoc/html/static/js/main.js
+++ b/src/librustdoc/html/static/js/main.js
@@ -568,7 +568,11 @@ function preLoadCss(cssUrl) {
                 break;
             case "-":
                 ev.preventDefault();
-                collapseAllDocs();
+                collapseAllDocs(false);
+                break;
+            case "_":
+                ev.preventDefault();
+                collapseAllDocs(true);
                 break;
 
             case "?":
@@ -1038,11 +1042,14 @@ function preLoadCss(cssUrl) {
         innerToggle.children[0].innerText = "Summary";
     }
 
-    function collapseAllDocs() {
+    /**
+     * @param {boolean} collapseImpls - also collapse impl blocks if set to true
+     */
+    function collapseAllDocs(collapseImpls) {
         const innerToggle = document.getElementById(toggleAllDocsId);
         addClass(innerToggle, "will-expand");
         onEachLazy(document.getElementsByClassName("toggle"), e => {
-            if (e.parentNode.id !== "implementations-list" ||
+            if ((collapseImpls || e.parentNode.id !== "implementations-list") ||
                 (!hasClass(e, "implementors-toggle") &&
                  !hasClass(e, "type-contents-toggle"))
             ) {
@@ -1053,7 +1060,10 @@ function preLoadCss(cssUrl) {
         innerToggle.children[0].innerText = "Show all";
     }
 
-    function toggleAllDocs() {
+    /**
+     * @param {MouseEvent=} ev
+     */
+    function toggleAllDocs(ev) {
         const innerToggle = document.getElementById(toggleAllDocsId);
         if (!innerToggle) {
             return;
@@ -1061,7 +1071,7 @@ function preLoadCss(cssUrl) {
         if (hasClass(innerToggle, "will-expand")) {
             expandAllDocs();
         } else {
-            collapseAllDocs();
+            collapseAllDocs(ev !== undefined && ev.shiftKey);
         }
     }
 
@@ -1519,6 +1529,10 @@ function preLoadCss(cssUrl) {
             ["&#9166;", "Go to active search result"],
             ["+", "Expand all sections"],
             ["-", "Collapse all sections"],
+            // for the sake of brevity, we don't say "inherint impl blocks",
+            // although that would be more correct,
+            // since trait impl blocks are collapsed by -
+            ["_", "Collapse all sections, including impl blocks"],
         ].map(x => "<dt>" +
             x[0].split(" ")
                 .map((y, index) => ((index & 1) === 0 ? "<kbd>" + y + "</kbd>" : " " + y + " "))
diff --git a/src/librustdoc/html/static/js/storage.js b/src/librustdoc/html/static/js/storage.js
index 76113726894..ca13b891638 100644
--- a/src/librustdoc/html/static/js/storage.js
+++ b/src/librustdoc/html/static/js/storage.js
@@ -418,7 +418,9 @@ class RustdocToolbarElement extends HTMLElement {
         <div id="help-button" tabindex="-1">
             <a href="${rootPath}help.html"><span class="label">Help</span></a>
         </div>
-        <button id="toggle-all-docs"><span class="label">Summary</span></button>`;
+        <button id="toggle-all-docs"
+title="Collapse sections (shift-click to also collapse impl blocks)"><span
+class="label">Summary</span></button>`;
     }
 }
 window.customElements.define("rustdoc-toolbar", RustdocToolbarElement);
diff --git a/src/tools/cargo b/src/tools/cargo
-Subproject 6833aa715d724437dc1247d0166afe314ab6854
+Subproject 9b296973b425ffb159e12cf3cd56580fd5c8538
diff --git a/src/tools/clippy/.github/workflows/feature_freeze.yml b/src/tools/clippy/.github/workflows/feature_freeze.yml
index 7ad58af77d4..ec59be3e7f6 100644
--- a/src/tools/clippy/.github/workflows/feature_freeze.yml
+++ b/src/tools/clippy/.github/workflows/feature_freeze.yml
@@ -20,16 +20,26 @@ jobs:
     # of the pull request, as malicious code would be able to access the private
     # GitHub token.
     steps:
-    - name: Check PR Changes
-      id: pr-changes
-      run: echo "::set-output name=changes::${{ toJson(github.event.pull_request.changed_files) }}"
-
-    - name: Create Comment
-      if: steps.pr-changes.outputs.changes != '[]'
-      run: |
-        # Use GitHub API to create a comment on the PR
-        PR_NUMBER=${{ github.event.pull_request.number }}
-        COMMENT="**Seems that you are trying to add a new lint!**\nWe are currently in a [feature freeze](https://doc.rust-lang.org/nightly/clippy/development/feature_freeze.html), so we are delaying all lint-adding PRs to September 18 and focusing on bugfixes.\nThanks a lot for your contribution, and sorry for the inconvenience.\nWith ❤ from the Clippy team\n\n@rustbot note Feature-freeze\n@rustbot blocked\n@rustbot label +A-lint\n"
-        GITHUB_TOKEN=${{ secrets.GITHUB_TOKEN }}
-        COMMENT_URL="https://api.github.com/repos/${{ github.repository }}/issues/${PR_NUMBER}/comments"
-        curl -s -H "Authorization: token ${GITHUB_TOKEN}" -X POST $COMMENT_URL -d "{\"body\":\"$COMMENT\"}"
+      - name: Add freeze warning comment
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          GITHUB_REPOSITORY: ${{ github.repository }}
+          PR_NUMBER: ${{ github.event.pull_request.number }}
+        run: |
+          COMMENT=$(echo "**Seems that you are trying to add a new lint!**\n\
+          \n\
+          We are currently in a [feature freeze](https://doc.rust-lang.org/nightly/clippy/development/feature_freeze.html), so we are delaying all lint-adding PRs to September 18 and [focusing on bugfixes](https://github.com/rust-lang/rust-clippy/issues/15086).\n\
+          \n\
+          Thanks a lot for your contribution, and sorry for the inconvenience.\n\
+          \n\
+          With ❤ from the Clippy team.\n\
+          \n\
+          @rustbot note Feature-freeze\n\
+          @rustbot blocked\n\
+          @rustbot label +A-lint"
+          )
+          curl -s -H "Authorization: Bearer $GITHUB_TOKEN" \
+             -H "Content-Type: application/vnd.github.raw+json" \
+             -X POST \
+             --data "{\"body\":\"${COMMENT}\"}" \
+             "https://api.github.com/repos/${GITHUB_REPOSITORY}/issues/${PR_NUMBER}/comments"
diff --git a/src/tools/clippy/.gitignore b/src/tools/clippy/.gitignore
index a7c25b29021..36a4cdc1c35 100644
--- a/src/tools/clippy/.gitignore
+++ b/src/tools/clippy/.gitignore
@@ -19,8 +19,10 @@ out
 
 # Generated by Cargo
 *Cargo.lock
+!/clippy_test_deps/Cargo.lock
 /target
 /clippy_lints/target
+/clippy_lints_internal/target
 /clippy_utils/target
 /clippy_dev/target
 /lintcheck/target
diff --git a/src/tools/clippy/clippy_dev/src/fmt.rs b/src/tools/clippy/clippy_dev/src/fmt.rs
index bd9e57c9f6d..2b2138d3108 100644
--- a/src/tools/clippy/clippy_dev/src/fmt.rs
+++ b/src/tools/clippy/clippy_dev/src/fmt.rs
@@ -3,7 +3,7 @@ use crate::utils::{
     walk_dir_no_dot_or_target,
 };
 use itertools::Itertools;
-use rustc_lexer::{TokenKind, tokenize};
+use rustc_lexer::{FrontmatterAllowed, TokenKind, tokenize};
 use std::fmt::Write;
 use std::fs;
 use std::io::{self, Read};
@@ -92,7 +92,7 @@ fn fmt_conf(check: bool) -> Result<(), Error> {
     let mut fields = Vec::new();
     let mut state = State::Start;
 
-    for (i, t) in tokenize(conf)
+    for (i, t) in tokenize(conf, FrontmatterAllowed::No)
         .map(|x| {
             let start = pos;
             pos += x.len;
diff --git a/src/tools/clippy/clippy_lints/src/approx_const.rs b/src/tools/clippy/clippy_lints/src/approx_const.rs
index 5ed4c82634a..184fbbf7796 100644
--- a/src/tools/clippy/clippy_lints/src/approx_const.rs
+++ b/src/tools/clippy/clippy_lints/src/approx_const.rs
@@ -92,9 +92,11 @@ impl LateLintPass<'_> for ApproxConstant {
 impl ApproxConstant {
     fn check_known_consts(&self, cx: &LateContext<'_>, span: Span, s: symbol::Symbol, module: &str) {
         let s = s.as_str();
-        if s.parse::<f64>().is_ok() {
+        if let Ok(maybe_constant) = s.parse::<f64>() {
             for &(constant, name, min_digits, msrv) in &KNOWN_CONSTS {
-                if is_approx_const(constant, s, min_digits) && msrv.is_none_or(|msrv| self.msrv.meets(cx, msrv)) {
+                if is_approx_const(constant, s, maybe_constant, min_digits)
+                    && msrv.is_none_or(|msrv| self.msrv.meets(cx, msrv))
+                {
                     span_lint_and_help(
                         cx,
                         APPROX_CONSTANT,
@@ -112,18 +114,35 @@ impl ApproxConstant {
 
 impl_lint_pass!(ApproxConstant => [APPROX_CONSTANT]);
 
+fn count_digits_after_dot(input: &str) -> usize {
+    input
+        .char_indices()
+        .find(|(_, ch)| *ch == '.')
+        .map_or(0, |(i, _)| input.len() - i - 1)
+}
+
 /// Returns `false` if the number of significant figures in `value` are
 /// less than `min_digits`; otherwise, returns true if `value` is equal
-/// to `constant`, rounded to the number of digits present in `value`.
+/// to `constant`, rounded to the number of significant digits present in `value`.
 #[must_use]
-fn is_approx_const(constant: f64, value: &str, min_digits: usize) -> bool {
+fn is_approx_const(constant: f64, value: &str, f_value: f64, min_digits: usize) -> bool {
     if value.len() <= min_digits {
+        // The value is not precise enough
         false
-    } else if constant.to_string().starts_with(value) {
-        // The value is a truncated constant
+    } else if f_value.to_string().len() > min_digits && constant.to_string().starts_with(&f_value.to_string()) {
+        // The value represents the same value
         true
     } else {
-        let round_const = format!("{constant:.*}", value.len() - 2);
+        // The value is a truncated constant
+
+        // Print constant with numeric formatting (`0`), with the length of `value` as minimum width
+        // (`value_len$`), and with the same precision as `value` (`.value_prec$`).
+        // See https://doc.rust-lang.org/std/fmt/index.html.
+        let round_const = format!(
+            "{constant:0value_len$.value_prec$}",
+            value_len = value.len(),
+            value_prec = count_digits_after_dot(value)
+        );
         value == round_const
     }
 }
diff --git a/src/tools/clippy/clippy_lints/src/arbitrary_source_item_ordering.rs b/src/tools/clippy/clippy_lints/src/arbitrary_source_item_ordering.rs
index a9d3015ce5c..7b4cf033674 100644
--- a/src/tools/clippy/clippy_lints/src/arbitrary_source_item_ordering.rs
+++ b/src/tools/clippy/clippy_lints/src/arbitrary_source_item_ordering.rs
@@ -8,11 +8,11 @@ use clippy_utils::diagnostics::span_lint_and_note;
 use clippy_utils::is_cfg_test;
 use rustc_attr_data_structures::AttributeKind;
 use rustc_hir::{
-    Attribute, FieldDef, HirId, IsAuto, ImplItemId, Item, ItemKind, Mod, OwnerId, QPath, TraitItemId, TyKind,
-    Variant, VariantData,
+    Attribute, FieldDef, HirId, ImplItemId, IsAuto, Item, ItemKind, Mod, OwnerId, QPath, TraitItemId, TyKind, Variant,
+    VariantData,
 };
-use rustc_middle::ty::AssocKind;
 use rustc_lint::{LateContext, LateLintPass, LintContext};
+use rustc_middle::ty::AssocKind;
 use rustc_session::impl_lint_pass;
 use rustc_span::Ident;
 
@@ -469,13 +469,14 @@ impl<'tcx> LateLintPass<'tcx> for ArbitrarySourceItemOrdering {
 /// This is implemented here because `rustc_hir` is not a dependency of
 /// `clippy_config`.
 fn convert_assoc_item_kind(cx: &LateContext<'_>, owner_id: OwnerId) -> SourceItemOrderingTraitAssocItemKind {
-    let kind = cx.tcx.associated_item(owner_id.def_id).kind;
-
     #[allow(clippy::enum_glob_use)] // Very local glob use for legibility.
     use SourceItemOrderingTraitAssocItemKind::*;
+
+    let kind = cx.tcx.associated_item(owner_id.def_id).kind;
+
     match kind {
-        AssocKind::Const{..} => Const,
-        AssocKind::Type {..}=> Type,
+        AssocKind::Const { .. } => Const,
+        AssocKind::Type { .. } => Type,
         AssocKind::Fn { .. } => Fn,
     }
 }
diff --git a/src/tools/clippy/clippy_lints/src/arc_with_non_send_sync.rs b/src/tools/clippy/clippy_lints/src/arc_with_non_send_sync.rs
index 9e09fb5bb43..085029a744b 100644
--- a/src/tools/clippy/clippy_lints/src/arc_with_non_send_sync.rs
+++ b/src/tools/clippy/clippy_lints/src/arc_with_non_send_sync.rs
@@ -73,7 +73,7 @@ impl<'tcx> LateLintPass<'tcx> for ArcWithNonSendSync {
                         diag.note(format!(
                             "`Arc<{arg_ty}>` is not `Send` and `Sync` as `{arg_ty}` is {reason}"
                         ));
-                        diag.help("if the `Arc` will not used be across threads replace it with an `Rc`");
+                        diag.help("if the `Arc` will not be used across threads replace it with an `Rc`");
                         diag.help(format!(
                             "otherwise make `{arg_ty}` `Send` and `Sync` or consider a wrapper type such as `Mutex`"
                         ));
diff --git a/src/tools/clippy/clippy_lints/src/attrs/useless_attribute.rs b/src/tools/clippy/clippy_lints/src/attrs/useless_attribute.rs
index 4059f9603c3..b9b5cedb5aa 100644
--- a/src/tools/clippy/clippy_lints/src/attrs/useless_attribute.rs
+++ b/src/tools/clippy/clippy_lints/src/attrs/useless_attribute.rs
@@ -36,6 +36,7 @@ pub(super) fn check(cx: &EarlyContext<'_>, item: &Item, attrs: &[Attribute]) {
                                     | sym::unused_braces
                                     | sym::unused_import_braces
                                     | sym::unused_imports
+                                    | sym::redundant_imports
                             )
                         {
                             return;
diff --git a/src/tools/clippy/clippy_lints/src/casts/confusing_method_to_numeric_cast.rs b/src/tools/clippy/clippy_lints/src/casts/confusing_method_to_numeric_cast.rs
index 769cc120c95..849de22cfba 100644
--- a/src/tools/clippy/clippy_lints/src/casts/confusing_method_to_numeric_cast.rs
+++ b/src/tools/clippy/clippy_lints/src/casts/confusing_method_to_numeric_cast.rs
@@ -59,9 +59,8 @@ fn get_const_name_and_ty_name(
 
 pub(super) fn check(cx: &LateContext<'_>, expr: &Expr<'_>, cast_expr: &Expr<'_>, cast_from: Ty<'_>, cast_to: Ty<'_>) {
     // We allow casts from any function type to any function type.
-    match cast_to.kind() {
-        ty::FnDef(..) | ty::FnPtr(..) => return,
-        _ => { /* continue to checks */ },
+    if cast_to.is_fn() {
+        return;
     }
 
     if let ty::FnDef(def_id, generics) = cast_from.kind()
diff --git a/src/tools/clippy/clippy_lints/src/casts/fn_to_numeric_cast.rs b/src/tools/clippy/clippy_lints/src/casts/fn_to_numeric_cast.rs
index 55e27a05f3c..c5d9643f56a 100644
--- a/src/tools/clippy/clippy_lints/src/casts/fn_to_numeric_cast.rs
+++ b/src/tools/clippy/clippy_lints/src/casts/fn_to_numeric_cast.rs
@@ -3,7 +3,7 @@ use clippy_utils::source::snippet_with_applicability;
 use rustc_errors::Applicability;
 use rustc_hir::Expr;
 use rustc_lint::LateContext;
-use rustc_middle::ty::{self, Ty};
+use rustc_middle::ty::Ty;
 
 use super::{FN_TO_NUMERIC_CAST, utils};
 
@@ -13,23 +13,20 @@ pub(super) fn check(cx: &LateContext<'_>, expr: &Expr<'_>, cast_expr: &Expr<'_>,
         return;
     };
 
-    match cast_from.kind() {
-        ty::FnDef(..) | ty::FnPtr(..) => {
-            let mut applicability = Applicability::MaybeIncorrect;
+    if cast_from.is_fn() {
+        let mut applicability = Applicability::MaybeIncorrect;
 
-            if to_nbits >= cx.tcx.data_layout.pointer_size().bits() && !cast_to.is_usize() {
-                let from_snippet = snippet_with_applicability(cx, cast_expr.span, "x", &mut applicability);
-                span_lint_and_sugg(
-                    cx,
-                    FN_TO_NUMERIC_CAST,
-                    expr.span,
-                    format!("casting function pointer `{from_snippet}` to `{cast_to}`"),
-                    "try",
-                    format!("{from_snippet} as usize"),
-                    applicability,
-                );
-            }
-        },
-        _ => {},
+        if to_nbits >= cx.tcx.data_layout.pointer_size().bits() && !cast_to.is_usize() {
+            let from_snippet = snippet_with_applicability(cx, cast_expr.span, "x", &mut applicability);
+            span_lint_and_sugg(
+                cx,
+                FN_TO_NUMERIC_CAST,
+                expr.span,
+                format!("casting function pointer `{from_snippet}` to `{cast_to}`"),
+                "try",
+                format!("{from_snippet} as usize"),
+                applicability,
+            );
+        }
     }
 }
diff --git a/src/tools/clippy/clippy_lints/src/casts/fn_to_numeric_cast_any.rs b/src/tools/clippy/clippy_lints/src/casts/fn_to_numeric_cast_any.rs
index b22e8f4ee89..43ee91af6e5 100644
--- a/src/tools/clippy/clippy_lints/src/casts/fn_to_numeric_cast_any.rs
+++ b/src/tools/clippy/clippy_lints/src/casts/fn_to_numeric_cast_any.rs
@@ -3,18 +3,17 @@ use clippy_utils::source::snippet_with_applicability;
 use rustc_errors::Applicability;
 use rustc_hir::Expr;
 use rustc_lint::LateContext;
-use rustc_middle::ty::{self, Ty};
+use rustc_middle::ty::Ty;
 
 use super::FN_TO_NUMERIC_CAST_ANY;
 
 pub(super) fn check(cx: &LateContext<'_>, expr: &Expr<'_>, cast_expr: &Expr<'_>, cast_from: Ty<'_>, cast_to: Ty<'_>) {
     // We allow casts from any function type to any function type.
-    match cast_to.kind() {
-        ty::FnDef(..) | ty::FnPtr(..) => return,
-        _ => { /* continue to checks */ },
+    if cast_to.is_fn() {
+        return;
     }
 
-    if let ty::FnDef(..) | ty::FnPtr(..) = cast_from.kind() {
+    if cast_from.is_fn() {
         let mut applicability = Applicability::MaybeIncorrect;
         let from_snippet = snippet_with_applicability(cx, cast_expr.span, "..", &mut applicability);
 
diff --git a/src/tools/clippy/clippy_lints/src/casts/fn_to_numeric_cast_with_truncation.rs b/src/tools/clippy/clippy_lints/src/casts/fn_to_numeric_cast_with_truncation.rs
index 4da79205e20..9a2e44e07d4 100644
--- a/src/tools/clippy/clippy_lints/src/casts/fn_to_numeric_cast_with_truncation.rs
+++ b/src/tools/clippy/clippy_lints/src/casts/fn_to_numeric_cast_with_truncation.rs
@@ -3,7 +3,7 @@ use clippy_utils::source::snippet_with_applicability;
 use rustc_errors::Applicability;
 use rustc_hir::Expr;
 use rustc_lint::LateContext;
-use rustc_middle::ty::{self, Ty};
+use rustc_middle::ty::Ty;
 
 use super::{FN_TO_NUMERIC_CAST_WITH_TRUNCATION, utils};
 
@@ -12,23 +12,20 @@ pub(super) fn check(cx: &LateContext<'_>, expr: &Expr<'_>, cast_expr: &Expr<'_>,
     let Some(to_nbits) = utils::int_ty_to_nbits(cx.tcx, cast_to) else {
         return;
     };
-    match cast_from.kind() {
-        ty::FnDef(..) | ty::FnPtr(..) => {
-            let mut applicability = Applicability::MaybeIncorrect;
-            let from_snippet = snippet_with_applicability(cx, cast_expr.span, "x", &mut applicability);
+    if cast_from.is_fn() {
+        let mut applicability = Applicability::MaybeIncorrect;
+        let from_snippet = snippet_with_applicability(cx, cast_expr.span, "x", &mut applicability);
 
-            if to_nbits < cx.tcx.data_layout.pointer_size().bits() {
-                span_lint_and_sugg(
-                    cx,
-                    FN_TO_NUMERIC_CAST_WITH_TRUNCATION,
-                    expr.span,
-                    format!("casting function pointer `{from_snippet}` to `{cast_to}`, which truncates the value"),
-                    "try",
-                    format!("{from_snippet} as usize"),
-                    applicability,
-                );
-            }
-        },
-        _ => {},
+        if to_nbits < cx.tcx.data_layout.pointer_size().bits() {
+            span_lint_and_sugg(
+                cx,
+                FN_TO_NUMERIC_CAST_WITH_TRUNCATION,
+                expr.span,
+                format!("casting function pointer `{from_snippet}` to `{cast_to}`, which truncates the value"),
+                "try",
+                format!("{from_snippet} as usize"),
+                applicability,
+            );
+        }
     }
 }
diff --git a/src/tools/clippy/clippy_lints/src/casts/ptr_as_ptr.rs b/src/tools/clippy/clippy_lints/src/casts/ptr_as_ptr.rs
index 6f944914b8f..ee0f3fa81c6 100644
--- a/src/tools/clippy/clippy_lints/src/casts/ptr_as_ptr.rs
+++ b/src/tools/clippy/clippy_lints/src/casts/ptr_as_ptr.rs
@@ -4,10 +4,9 @@ use clippy_utils::source::snippet_with_applicability;
 use clippy_utils::sugg::Sugg;
 use rustc_errors::Applicability;
 use rustc_hir::{Expr, ExprKind, Mutability, QPath, TyKind};
-use rustc_hir_pretty::qpath_to_string;
 use rustc_lint::LateContext;
 use rustc_middle::ty;
-use rustc_span::sym;
+use rustc_span::{Span, sym};
 
 use super::PTR_AS_PTR;
 
@@ -74,7 +73,7 @@ pub(super) fn check(cx: &LateContext<'_>, expr: &Expr<'_>, msrv: Msrv) {
 
         let (help, final_suggestion) = if let Some(method) = omit_cast.corresponding_item() {
             // don't force absolute path
-            let method = qpath_to_string(&cx.tcx, method);
+            let method = snippet_with_applicability(cx, qpath_span_without_turbofish(method), "..", &mut app);
             ("try call directly", format!("{method}{turbofish}()"))
         } else {
             let cast_expr_sugg = Sugg::hir_with_applicability(cx, cast_expr, "_", &mut app);
@@ -96,3 +95,14 @@ pub(super) fn check(cx: &LateContext<'_>, expr: &Expr<'_>, msrv: Msrv) {
         );
     }
 }
+
+fn qpath_span_without_turbofish(qpath: &QPath<'_>) -> Span {
+    if let QPath::Resolved(_, path) = qpath
+        && let [.., last_ident] = path.segments
+        && last_ident.args.is_some()
+    {
+        return qpath.span().shrink_to_lo().to(last_ident.ident.span);
+    }
+
+    qpath.span()
+}
diff --git a/src/tools/clippy/clippy_lints/src/cognitive_complexity.rs b/src/tools/clippy/clippy_lints/src/cognitive_complexity.rs
index d5d937d9133..518535e8c8b 100644
--- a/src/tools/clippy/clippy_lints/src/cognitive_complexity.rs
+++ b/src/tools/clippy/clippy_lints/src/cognitive_complexity.rs
@@ -110,7 +110,6 @@ impl CognitiveComplexity {
                 FnKind::ItemFn(ident, _, _) | FnKind::Method(ident, _) => ident.span,
                 FnKind::Closure => {
                     let header_span = body_span.with_hi(decl.output.span().lo());
-                    #[expect(clippy::range_plus_one)]
                     if let Some(range) = header_span.map_range(cx, |_, src, range| {
                         let mut idxs = src.get(range.clone())?.match_indices('|');
                         Some(range.start + idxs.next()?.0..range.start + idxs.next()?.0 + 1)
diff --git a/src/tools/clippy/clippy_lints/src/copies.rs b/src/tools/clippy/clippy_lints/src/copies.rs
index 27918698cd6..4bd34527d21 100644
--- a/src/tools/clippy/clippy_lints/src/copies.rs
+++ b/src/tools/clippy/clippy_lints/src/copies.rs
@@ -1,5 +1,6 @@
 use clippy_config::Conf;
 use clippy_utils::diagnostics::{span_lint, span_lint_and_note, span_lint_and_then};
+use clippy_utils::higher::has_let_expr;
 use clippy_utils::source::{IntoSpan, SpanRangeExt, first_line_of_span, indent_of, reindent_multiline, snippet};
 use clippy_utils::ty::{InteriorMut, needs_ordered_drop};
 use clippy_utils::visitors::for_each_expr_without_closures;
@@ -11,7 +12,7 @@ use clippy_utils::{
 use core::iter;
 use core::ops::ControlFlow;
 use rustc_errors::Applicability;
-use rustc_hir::{BinOpKind, Block, Expr, ExprKind, HirId, HirIdSet, LetStmt, Node, Stmt, StmtKind, intravisit};
+use rustc_hir::{Block, Expr, ExprKind, HirId, HirIdSet, LetStmt, Node, Stmt, StmtKind, intravisit};
 use rustc_lint::{LateContext, LateLintPass};
 use rustc_middle::ty::TyCtxt;
 use rustc_session::impl_lint_pass;
@@ -189,24 +190,13 @@ impl<'tcx> LateLintPass<'tcx> for CopyAndPaste<'tcx> {
     }
 }
 
-/// Checks if the given expression is a let chain.
-fn contains_let(e: &Expr<'_>) -> bool {
-    match e.kind {
-        ExprKind::Let(..) => true,
-        ExprKind::Binary(op, lhs, rhs) if op.node == BinOpKind::And => {
-            matches!(lhs.kind, ExprKind::Let(..)) || contains_let(rhs)
-        },
-        _ => false,
-    }
-}
-
 fn lint_if_same_then_else(cx: &LateContext<'_>, conds: &[&Expr<'_>], blocks: &[&Block<'_>]) -> bool {
     let mut eq = SpanlessEq::new(cx);
     blocks
         .array_windows::<2>()
         .enumerate()
         .fold(true, |all_eq, (i, &[lhs, rhs])| {
-            if eq.eq_block(lhs, rhs) && !contains_let(conds[i]) && conds.get(i + 1).is_none_or(|e| !contains_let(e)) {
+            if eq.eq_block(lhs, rhs) && !has_let_expr(conds[i]) && conds.get(i + 1).is_none_or(|e| !has_let_expr(e)) {
                 span_lint_and_note(
                     cx,
                     IF_SAME_THEN_ELSE,
diff --git a/src/tools/clippy/clippy_lints/src/derive.rs b/src/tools/clippy/clippy_lints/src/derive.rs
index 062f7cef3a7..49dd1bb09c6 100644
--- a/src/tools/clippy/clippy_lints/src/derive.rs
+++ b/src/tools/clippy/clippy_lints/src/derive.rs
@@ -432,6 +432,11 @@ impl<'tcx> Visitor<'tcx> for UnsafeVisitor<'_, 'tcx> {
     fn visit_expr(&mut self, expr: &'tcx Expr<'_>) -> Self::Result {
         if let ExprKind::Block(block, _) = expr.kind
             && block.rules == BlockCheckMode::UnsafeBlock(UnsafeSource::UserProvided)
+            && block
+                .span
+                .source_callee()
+                .and_then(|expr| expr.macro_def_id)
+                .is_none_or(|did| !self.cx.tcx.is_diagnostic_item(sym::pin_macro, did))
         {
             return ControlFlow::Break(());
         }
diff --git a/src/tools/clippy/clippy_lints/src/disallowed_macros.rs b/src/tools/clippy/clippy_lints/src/disallowed_macros.rs
index d55aeae98ed..23e7c7251cf 100644
--- a/src/tools/clippy/clippy_lints/src/disallowed_macros.rs
+++ b/src/tools/clippy/clippy_lints/src/disallowed_macros.rs
@@ -72,11 +72,11 @@ pub struct DisallowedMacros {
 
     // When a macro is disallowed in an early pass, it's stored
     // and emitted during the late pass. This happens for attributes.
-    earlies: AttrStorage,
+    early_macro_cache: AttrStorage,
 }
 
 impl DisallowedMacros {
-    pub fn new(tcx: TyCtxt<'_>, conf: &'static Conf, earlies: AttrStorage) -> Self {
+    pub fn new(tcx: TyCtxt<'_>, conf: &'static Conf, early_macro_cache: AttrStorage) -> Self {
         let (disallowed, _) = create_disallowed_map(
             tcx,
             &conf.disallowed_macros,
@@ -89,7 +89,7 @@ impl DisallowedMacros {
             disallowed,
             seen: FxHashSet::default(),
             derive_src: None,
-            earlies,
+            early_macro_cache,
         }
     }
 
@@ -130,7 +130,7 @@ impl_lint_pass!(DisallowedMacros => [DISALLOWED_MACROS]);
 impl LateLintPass<'_> for DisallowedMacros {
     fn check_crate(&mut self, cx: &LateContext<'_>) {
         // once we check a crate in the late pass we can emit the early pass lints
-        if let Some(attr_spans) = self.earlies.clone().0.get() {
+        if let Some(attr_spans) = self.early_macro_cache.clone().0.get() {
             for span in attr_spans {
                 self.check(cx, *span, None);
             }
diff --git a/src/tools/clippy/clippy_lints/src/doc/mod.rs b/src/tools/clippy/clippy_lints/src/doc/mod.rs
index 22b781b8929..ea0da0d2467 100644
--- a/src/tools/clippy/clippy_lints/src/doc/mod.rs
+++ b/src/tools/clippy/clippy_lints/src/doc/mod.rs
@@ -1232,7 +1232,6 @@ fn check_doc<'a, Events: Iterator<Item = (pulldown_cmark::Event<'a>, Range<usize
     headers
 }
 
-#[expect(clippy::range_plus_one)] // inclusive ranges aren't the same type
 fn looks_like_refdef(doc: &str, range: Range<usize>) -> Option<Range<usize>> {
     if range.end < range.start {
         return None;
diff --git a/src/tools/clippy/clippy_lints/src/empty_with_brackets.rs b/src/tools/clippy/clippy_lints/src/empty_with_brackets.rs
index 4414aebbf9a..f2757407ba5 100644
--- a/src/tools/clippy/clippy_lints/src/empty_with_brackets.rs
+++ b/src/tools/clippy/clippy_lints/src/empty_with_brackets.rs
@@ -92,8 +92,10 @@ impl_lint_pass!(EmptyWithBrackets => [EMPTY_STRUCTS_WITH_BRACKETS, EMPTY_ENUM_VA
 
 impl LateLintPass<'_> for EmptyWithBrackets {
     fn check_item(&mut self, cx: &LateContext<'_>, item: &Item<'_>) {
+        // FIXME: handle `struct $name {}`
         if let ItemKind::Struct(ident, _, var_data) = &item.kind
             && !item.span.from_expansion()
+            && !ident.span.from_expansion()
             && has_brackets(var_data)
             && let span_after_ident = item.span.with_lo(ident.span.hi())
             && has_no_fields(cx, var_data, span_after_ident)
@@ -116,10 +118,12 @@ impl LateLintPass<'_> for EmptyWithBrackets {
     }
 
     fn check_variant(&mut self, cx: &LateContext<'_>, variant: &Variant<'_>) {
-        // the span of the parentheses/braces
-        let span_after_ident = variant.span.with_lo(variant.ident.span.hi());
-
-        if has_no_fields(cx, &variant.data, span_after_ident) {
+        // FIXME: handle `$name {}`
+        if !variant.span.from_expansion()
+            && !variant.ident.span.from_expansion()
+            && let span_after_ident = variant.span.with_lo(variant.ident.span.hi())
+            && has_no_fields(cx, &variant.data, span_after_ident)
+        {
             match variant.data {
                 VariantData::Struct { .. } => {
                     // Empty struct variants can be linted immediately
diff --git a/src/tools/clippy/clippy_lints/src/escape.rs b/src/tools/clippy/clippy_lints/src/escape.rs
index db2fea1aae9..fc224fa5f92 100644
--- a/src/tools/clippy/clippy_lints/src/escape.rs
+++ b/src/tools/clippy/clippy_lints/src/escape.rs
@@ -1,8 +1,8 @@
 use clippy_config::Conf;
 use clippy_utils::diagnostics::span_lint_hir;
 use rustc_abi::ExternAbi;
-use rustc_hir::{Body, FnDecl, HirId, HirIdSet, Node, Pat, PatKind, intravisit};
 use rustc_hir::def::DefKind;
+use rustc_hir::{Body, FnDecl, HirId, HirIdSet, Node, Pat, PatKind, intravisit};
 use rustc_hir_typeck::expr_use_visitor::{Delegate, ExprUseVisitor, PlaceBase, PlaceWithHirId};
 use rustc_lint::{LateContext, LateLintPass};
 use rustc_middle::mir::FakeReadCause;
@@ -87,16 +87,14 @@ impl<'tcx> LateLintPass<'tcx> for BoxedLocal {
         let mut trait_self_ty = None;
         match cx.tcx.def_kind(parent_id) {
             // If the method is an impl for a trait, don't warn.
-            DefKind::Impl { of_trait: true } => {
-                return
-            }
+            DefKind::Impl { of_trait: true } => return,
 
             // find `self` ty for this trait if relevant
             DefKind::Trait => {
                 trait_self_ty = Some(TraitRef::identity(cx.tcx, parent_id.to_def_id()).self_ty());
-            }
+            },
 
-            _ => {}
+            _ => {},
         }
 
         let mut v = EscapeDelegate {
diff --git a/src/tools/clippy/clippy_lints/src/eta_reduction.rs b/src/tools/clippy/clippy_lints/src/eta_reduction.rs
index 0288747d6f3..9b627678bd3 100644
--- a/src/tools/clippy/clippy_lints/src/eta_reduction.rs
+++ b/src/tools/clippy/clippy_lints/src/eta_reduction.rs
@@ -29,12 +29,6 @@ declare_clippy_lint! {
     /// Needlessly creating a closure adds code for no benefit
     /// and gives the optimizer more work.
     ///
-    /// ### Known problems
-    /// If creating the closure inside the closure has a side-
-    /// effect then moving the closure creation out will change when that side-
-    /// effect runs.
-    /// See [#1439](https://github.com/rust-lang/rust-clippy/issues/1439) for more details.
-    ///
     /// ### Example
     /// ```rust,ignore
     /// xs.map(|x| foo(x))
diff --git a/src/tools/clippy/clippy_lints/src/fallible_impl_from.rs b/src/tools/clippy/clippy_lints/src/fallible_impl_from.rs
index 552cd721f4e..fdfcbb540bc 100644
--- a/src/tools/clippy/clippy_lints/src/fallible_impl_from.rs
+++ b/src/tools/clippy/clippy_lints/src/fallible_impl_from.rs
@@ -64,8 +64,8 @@ impl<'tcx> LateLintPass<'tcx> for FallibleImplFrom {
 }
 
 fn lint_impl_body(cx: &LateContext<'_>, item_def_id: hir::OwnerId, impl_span: Span) {
-    use rustc_hir::intravisit::{self, Visitor};
     use rustc_hir::Expr;
+    use rustc_hir::intravisit::{self, Visitor};
 
     struct FindPanicUnwrap<'a, 'tcx> {
         lcx: &'a LateContext<'tcx>,
@@ -96,10 +96,12 @@ fn lint_impl_body(cx: &LateContext<'_>, item_def_id: hir::OwnerId, impl_span: Sp
         }
     }
 
-    for impl_item in cx.tcx.associated_items(item_def_id)
+    for impl_item in cx
+        .tcx
+        .associated_items(item_def_id)
         .filter_by_name_unhygienic_and_kind(sym::from, ty::AssocTag::Fn)
     {
-        let impl_item_def_id= impl_item.def_id.expect_local();
+        let impl_item_def_id = impl_item.def_id.expect_local();
 
         // check the body for `begin_panic` or `unwrap`
         let body = cx.tcx.hir_body_owned_by(impl_item_def_id);
diff --git a/src/tools/clippy/clippy_lints/src/format_args.rs b/src/tools/clippy/clippy_lints/src/format_args.rs
index 16c58ecb455..a251f15ba3d 100644
--- a/src/tools/clippy/clippy_lints/src/format_args.rs
+++ b/src/tools/clippy/clippy_lints/src/format_args.rs
@@ -17,7 +17,7 @@ use rustc_ast::{
     FormatArgPosition, FormatArgPositionKind, FormatArgsPiece, FormatArgumentKind, FormatCount, FormatOptions,
     FormatPlaceholder, FormatTrait,
 };
-use rustc_attr_data_structures::RustcVersion;
+use rustc_attr_data_structures::{AttributeKind, RustcVersion, find_attr};
 use rustc_data_structures::fx::FxHashMap;
 use rustc_errors::Applicability;
 use rustc_errors::SuggestionStyle::{CompletelyHidden, ShowCode};
@@ -30,7 +30,6 @@ use rustc_span::edition::Edition::Edition2021;
 use rustc_span::{Span, Symbol, sym};
 use rustc_trait_selection::infer::TyCtxtInferExt;
 use rustc_trait_selection::traits::{Obligation, ObligationCause, Selection, SelectionContext};
-use rustc_attr_data_structures::{AttributeKind, find_attr};
 
 declare_clippy_lint! {
     /// ### What it does
@@ -129,6 +128,7 @@ declare_clippy_lint! {
     /// # let width = 1;
     /// # let prec = 2;
     /// format!("{}", var);
+    /// format!("{:?}", var);
     /// format!("{v:?}", v = var);
     /// format!("{0} {0}", var);
     /// format!("{0:1$}", var, width);
@@ -141,6 +141,7 @@ declare_clippy_lint! {
     /// # let prec = 2;
     /// format!("{var}");
     /// format!("{var:?}");
+    /// format!("{var:?}");
     /// format!("{var} {var}");
     /// format!("{var:width$}");
     /// format!("{var:.prec$}");
@@ -164,7 +165,7 @@ declare_clippy_lint! {
     /// nothing will be suggested, e.g. `println!("{0}={1}", var, 1+2)`.
     #[clippy::version = "1.66.0"]
     pub UNINLINED_FORMAT_ARGS,
-    style,
+    pedantic,
     "using non-inlined variables in `format!` calls"
 }
 
@@ -657,7 +658,10 @@ impl<'tcx> FormatArgsExpr<'_, 'tcx> {
                     };
                     let selection = SelectionContext::new(&infcx).select(&obligation);
                     let derived = if let Ok(Some(Selection::UserDefined(data))) = selection {
-                        find_attr!(tcx.get_all_attrs(data.impl_def_id), AttributeKind::AutomaticallyDerived(..))
+                        find_attr!(
+                            tcx.get_all_attrs(data.impl_def_id),
+                            AttributeKind::AutomaticallyDerived(..)
+                        )
                     } else {
                         false
                     };
diff --git a/src/tools/clippy/clippy_lints/src/from_over_into.rs b/src/tools/clippy/clippy_lints/src/from_over_into.rs
index 85b40ba7419..1da6952eb64 100644
--- a/src/tools/clippy/clippy_lints/src/from_over_into.rs
+++ b/src/tools/clippy/clippy_lints/src/from_over_into.rs
@@ -9,7 +9,7 @@ use clippy_utils::source::SpanRangeExt;
 use rustc_errors::Applicability;
 use rustc_hir::intravisit::{Visitor, walk_path};
 use rustc_hir::{
-    FnRetTy, GenericArg, GenericArgs, HirId, Impl, ImplItemKind, ImplItemId, Item, ItemKind, PatKind, Path,
+    FnRetTy, GenericArg, GenericArgs, HirId, Impl, ImplItemId, ImplItemKind, Item, ItemKind, PatKind, Path,
     PathSegment, Ty, TyKind,
 };
 use rustc_lint::{LateContext, LateLintPass};
diff --git a/src/tools/clippy/clippy_lints/src/functions/must_use.rs b/src/tools/clippy/clippy_lints/src/functions/must_use.rs
index d959981a83c..b8d0cec5aeb 100644
--- a/src/tools/clippy/clippy_lints/src/functions/must_use.rs
+++ b/src/tools/clippy/clippy_lints/src/functions/must_use.rs
@@ -10,7 +10,7 @@ use rustc_span::{Span, sym};
 
 use clippy_utils::attrs::is_proc_macro;
 use clippy_utils::diagnostics::{span_lint_and_help, span_lint_and_then};
-use clippy_utils::source::SpanRangeExt;
+use clippy_utils::source::snippet_indent;
 use clippy_utils::ty::is_must_use_ty;
 use clippy_utils::visitors::for_each_expr_without_closures;
 use clippy_utils::{return_ty, trait_ref_of_method};
@@ -28,6 +28,7 @@ pub(super) fn check_item<'tcx>(cx: &LateContext<'tcx>, item: &'tcx hir::Item<'_>
     if let hir::ItemKind::Fn {
         ref sig,
         body: ref body_id,
+        ident,
         ..
     } = item.kind
     {
@@ -51,8 +52,8 @@ pub(super) fn check_item<'tcx>(cx: &LateContext<'tcx>, item: &'tcx hir::Item<'_>
                 sig.decl,
                 cx.tcx.hir_body(*body_id),
                 item.span,
+                ident.span,
                 item.owner_id,
-                item.span.with_hi(sig.decl.output.span().hi()),
                 "this function could have a `#[must_use]` attribute",
             );
         }
@@ -84,8 +85,8 @@ pub(super) fn check_impl_item<'tcx>(cx: &LateContext<'tcx>, item: &'tcx hir::Imp
                 sig.decl,
                 cx.tcx.hir_body(*body_id),
                 item.span,
+                item.ident.span,
                 item.owner_id,
-                item.span.with_hi(sig.decl.output.span().hi()),
                 "this method could have a `#[must_use]` attribute",
             );
         }
@@ -120,8 +121,8 @@ pub(super) fn check_trait_item<'tcx>(cx: &LateContext<'tcx>, item: &'tcx hir::Tr
                     sig.decl,
                     body,
                     item.span,
+                    item.ident.span,
                     item.owner_id,
-                    item.span.with_hi(sig.decl.output.span().hi()),
                     "this method could have a `#[must_use]` attribute",
                 );
             }
@@ -198,8 +199,8 @@ fn check_must_use_candidate<'tcx>(
     decl: &'tcx hir::FnDecl<'_>,
     body: &'tcx hir::Body<'_>,
     item_span: Span,
+    ident_span: Span,
     item_id: hir::OwnerId,
-    fn_span: Span,
     msg: &'static str,
 ) {
     if has_mutable_arg(cx, body)
@@ -208,18 +209,18 @@ fn check_must_use_candidate<'tcx>(
         || returns_unit(decl)
         || !cx.effective_visibilities.is_exported(item_id.def_id)
         || is_must_use_ty(cx, return_ty(cx, item_id))
+        || item_span.from_expansion()
     {
         return;
     }
-    span_lint_and_then(cx, MUST_USE_CANDIDATE, fn_span, msg, |diag| {
-        if let Some(snippet) = fn_span.get_source_text(cx) {
-            diag.span_suggestion(
-                fn_span,
-                "add the attribute",
-                format!("#[must_use] {snippet}"),
-                Applicability::MachineApplicable,
-            );
-        }
+    span_lint_and_then(cx, MUST_USE_CANDIDATE, ident_span, msg, |diag| {
+        let indent = snippet_indent(cx, item_span).unwrap_or_default();
+        diag.span_suggestion(
+            item_span.shrink_to_lo(),
+            "add the attribute",
+            format!("#[must_use] \n{indent}"),
+            Applicability::MachineApplicable,
+        );
     });
 }
 
diff --git a/src/tools/clippy/clippy_lints/src/if_then_some_else_none.rs b/src/tools/clippy/clippy_lints/src/if_then_some_else_none.rs
index 9e94280fc07..7158f9419c1 100644
--- a/src/tools/clippy/clippy_lints/src/if_then_some_else_none.rs
+++ b/src/tools/clippy/clippy_lints/src/if_then_some_else_none.rs
@@ -5,7 +5,8 @@ use clippy_utils::msrvs::{self, Msrv};
 use clippy_utils::source::snippet_with_context;
 use clippy_utils::sugg::Sugg;
 use clippy_utils::{
-    contains_return, higher, is_else_clause, is_in_const_context, is_res_lang_ctor, path_res, peel_blocks,
+    contains_return, expr_adjustment_requires_coercion, higher, is_else_clause, is_in_const_context, is_res_lang_ctor,
+    path_res, peel_blocks,
 };
 use rustc_errors::Applicability;
 use rustc_hir::LangItem::{OptionNone, OptionSome};
@@ -92,6 +93,10 @@ impl<'tcx> LateLintPass<'tcx> for IfThenSomeElseNone {
                 expr.span,
                 format!("this could be simplified with `bool::{method_name}`"),
                 |diag| {
+                    if expr_adjustment_requires_coercion(cx, then_arg) {
+                        return;
+                    }
+
                     let mut app = Applicability::MachineApplicable;
                     let cond_snip = Sugg::hir_with_context(cx, cond, expr.span.ctxt(), "[condition]", &mut app)
                         .maybe_paren()
diff --git a/src/tools/clippy/clippy_lints/src/incompatible_msrv.rs b/src/tools/clippy/clippy_lints/src/incompatible_msrv.rs
index 5d0bd3e8ca3..116d63c3bb1 100644
--- a/src/tools/clippy/clippy_lints/src/incompatible_msrv.rs
+++ b/src/tools/clippy/clippy_lints/src/incompatible_msrv.rs
@@ -1,10 +1,11 @@
 use clippy_config::Conf;
-use clippy_utils::diagnostics::span_lint;
-use clippy_utils::is_in_test;
+use clippy_utils::diagnostics::span_lint_and_then;
 use clippy_utils::msrvs::Msrv;
+use clippy_utils::{is_in_const_context, is_in_test};
 use rustc_attr_data_structures::{RustcVersion, StabilityLevel, StableSince};
 use rustc_data_structures::fx::FxHashMap;
-use rustc_hir::{Expr, ExprKind, HirId, QPath};
+use rustc_hir::def::DefKind;
+use rustc_hir::{self as hir, AmbigArg, Expr, ExprKind, HirId, QPath};
 use rustc_lint::{LateContext, LateLintPass};
 use rustc_middle::ty::TyCtxt;
 use rustc_session::impl_lint_pass;
@@ -33,15 +34,54 @@ declare_clippy_lint! {
     ///
     /// To fix this problem, either increase your MSRV or use another item
     /// available in your current MSRV.
+    ///
+    /// You can also locally change the MSRV that should be checked by Clippy,
+    /// for example if a feature in your crate (e.g., `modern_compiler`) should
+    /// allow you to use an item:
+    ///
+    /// ```no_run
+    /// //! This crate has a MSRV of 1.3.0, but we also have an optional feature
+    /// //! `sleep_well` which requires at least Rust 1.4.0.
+    ///
+    /// // When the `sleep_well` feature is set, do not warn for functions available
+    /// // in Rust 1.4.0 and below.
+    /// #![cfg_attr(feature = "sleep_well", clippy::msrv = "1.4.0")]
+    ///
+    /// use std::time::Duration;
+    ///
+    /// #[cfg(feature = "sleep_well")]
+    /// fn sleep_for_some_time() {
+    ///     std::thread::sleep(Duration::new(1, 0)); // Will not trigger the lint
+    /// }
+    /// ```
+    ///
+    /// You can also increase the MSRV in tests, by using:
+    ///
+    /// ```no_run
+    /// // Use a much higher MSRV for tests while keeping the main one low
+    /// #![cfg_attr(test, clippy::msrv = "1.85.0")]
+    ///
+    /// #[test]
+    /// fn my_test() {
+    ///     // The tests can use items introduced in Rust 1.85.0 and lower
+    ///     // without triggering the `incompatible_msrv` lint.
+    /// }
+    /// ```
     #[clippy::version = "1.78.0"]
     pub INCOMPATIBLE_MSRV,
     suspicious,
     "ensures that all items used in the crate are available for the current MSRV"
 }
 
+#[derive(Clone, Copy)]
+enum Availability {
+    FeatureEnabled,
+    Since(RustcVersion),
+}
+
 pub struct IncompatibleMsrv {
     msrv: Msrv,
-    is_above_msrv: FxHashMap<DefId, RustcVersion>,
+    availability_cache: FxHashMap<(DefId, bool), Availability>,
     check_in_tests: bool,
 }
 
@@ -51,38 +91,50 @@ impl IncompatibleMsrv {
     pub fn new(conf: &'static Conf) -> Self {
         Self {
             msrv: conf.msrv,
-            is_above_msrv: FxHashMap::default(),
+            availability_cache: FxHashMap::default(),
             check_in_tests: conf.check_incompatible_msrv_in_tests,
         }
     }
 
-    fn get_def_id_version(&mut self, tcx: TyCtxt<'_>, def_id: DefId) -> RustcVersion {
-        if let Some(version) = self.is_above_msrv.get(&def_id) {
-            return *version;
+    /// Returns the availability of `def_id`, whether it is enabled through a feature or
+    /// available since a given version (the default being Rust 1.0.0). `needs_const` requires
+    /// the `const`-stability to be looked up instead of the stability in non-`const` contexts.
+    fn get_def_id_availability(&mut self, tcx: TyCtxt<'_>, def_id: DefId, needs_const: bool) -> Availability {
+        if let Some(availability) = self.availability_cache.get(&(def_id, needs_const)) {
+            return *availability;
         }
-        let version = if let Some(version) = tcx
-            .lookup_stability(def_id)
-            .and_then(|stability| match stability.level {
-                StabilityLevel::Stable {
-                    since: StableSince::Version(version),
-                    ..
-                } => Some(version),
-                _ => None,
-            }) {
-            version
+        let (feature, stability_level) = if needs_const {
+            tcx.lookup_const_stability(def_id)
+                .map(|stability| (stability.feature, stability.level))
+                .unzip()
+        } else {
+            tcx.lookup_stability(def_id)
+                .map(|stability| (stability.feature, stability.level))
+                .unzip()
+        };
+        let version = if feature.is_some_and(|feature| tcx.features().enabled(feature)) {
+            Availability::FeatureEnabled
+        } else if let Some(StableSince::Version(version)) =
+            stability_level.as_ref().and_then(StabilityLevel::stable_since)
+        {
+            Availability::Since(version)
+        } else if needs_const {
+            // Fallback to regular stability
+            self.get_def_id_availability(tcx, def_id, false)
         } else if let Some(parent_def_id) = tcx.opt_parent(def_id) {
-            self.get_def_id_version(tcx, parent_def_id)
+            self.get_def_id_availability(tcx, parent_def_id, needs_const)
         } else {
-            RustcVersion {
+            Availability::Since(RustcVersion {
                 major: 1,
                 minor: 0,
                 patch: 0,
-            }
+            })
         };
-        self.is_above_msrv.insert(def_id, version);
+        self.availability_cache.insert((def_id, needs_const), version);
         version
     }
 
+    /// Emit lint if `def_id`, associated with `node` and `span`, is below the current MSRV.
     fn emit_lint_if_under_msrv(&mut self, cx: &LateContext<'_>, def_id: DefId, node: HirId, span: Span) {
         if def_id.is_local() {
             // We don't check local items since their MSRV is supposed to always be valid.
@@ -108,18 +160,28 @@ impl IncompatibleMsrv {
             return;
         }
 
+        let needs_const = cx.enclosing_body.is_some()
+            && is_in_const_context(cx)
+            && matches!(cx.tcx.def_kind(def_id), DefKind::AssocFn | DefKind::Fn);
+
         if (self.check_in_tests || !is_in_test(cx.tcx, node))
             && let Some(current) = self.msrv.current(cx)
-            && let version = self.get_def_id_version(cx.tcx, def_id)
+            && let Availability::Since(version) = self.get_def_id_availability(cx.tcx, def_id, needs_const)
             && version > current
         {
-            span_lint(
+            span_lint_and_then(
                 cx,
                 INCOMPATIBLE_MSRV,
                 span,
                 format!(
-                    "current MSRV (Minimum Supported Rust Version) is `{current}` but this item is stable since `{version}`"
+                    "current MSRV (Minimum Supported Rust Version) is `{current}` but this item is stable{} since `{version}`",
+                    if needs_const { " in a `const` context" } else { "" },
                 ),
+                |diag| {
+                    if is_under_cfg_attribute(cx, node) {
+                        diag.note_once("you may want to conditionally increase the MSRV considered by Clippy using the `clippy::msrv` attribute");
+                    }
+                },
             );
         }
     }
@@ -133,17 +195,38 @@ impl<'tcx> LateLintPass<'tcx> for IncompatibleMsrv {
                     self.emit_lint_if_under_msrv(cx, method_did, expr.hir_id, span);
                 }
             },
-            ExprKind::Call(call, _) => {
-                // Desugaring into function calls by the compiler will use `QPath::LangItem` variants. Those should
-                // not be linted as they will not be generated in older compilers if the function is not available,
-                // and the compiler is allowed to call unstable functions.
-                if let ExprKind::Path(qpath @ (QPath::Resolved(..) | QPath::TypeRelative(..))) = call.kind
-                    && let Some(path_def_id) = cx.qpath_res(&qpath, call.hir_id).opt_def_id()
-                {
-                    self.emit_lint_if_under_msrv(cx, path_def_id, expr.hir_id, call.span);
+            // Desugaring into function calls by the compiler will use `QPath::LangItem` variants. Those should
+            // not be linted as they will not be generated in older compilers if the function is not available,
+            // and the compiler is allowed to call unstable functions.
+            ExprKind::Path(qpath @ (QPath::Resolved(..) | QPath::TypeRelative(..))) => {
+                if let Some(path_def_id) = cx.qpath_res(&qpath, expr.hir_id).opt_def_id() {
+                    self.emit_lint_if_under_msrv(cx, path_def_id, expr.hir_id, expr.span);
                 }
             },
             _ => {},
         }
     }
+
+    fn check_ty(&mut self, cx: &LateContext<'tcx>, hir_ty: &'tcx hir::Ty<'tcx, AmbigArg>) {
+        if let hir::TyKind::Path(qpath @ (QPath::Resolved(..) | QPath::TypeRelative(..))) = hir_ty.kind
+            && let Some(ty_def_id) = cx.qpath_res(&qpath, hir_ty.hir_id).opt_def_id()
+            // `CStr` and `CString` have been moved around but have been available since Rust 1.0.0
+            && !matches!(cx.tcx.get_diagnostic_name(ty_def_id), Some(sym::cstr_type | sym::cstring_type))
+        {
+            self.emit_lint_if_under_msrv(cx, ty_def_id, hir_ty.hir_id, hir_ty.span);
+        }
+    }
+}
+
+/// Heuristic checking if the node `hir_id` is under a `#[cfg()]` or `#[cfg_attr()]`
+/// attribute.
+fn is_under_cfg_attribute(cx: &LateContext<'_>, hir_id: HirId) -> bool {
+    cx.tcx.hir_parent_id_iter(hir_id).any(|id| {
+        cx.tcx.hir_attrs(id).iter().any(|attr| {
+            matches!(
+                attr.ident().map(|ident| ident.name),
+                Some(sym::cfg_trace | sym::cfg_attr_trace)
+            )
+        })
+    })
 }
diff --git a/src/tools/clippy/clippy_lints/src/ineffective_open_options.rs b/src/tools/clippy/clippy_lints/src/ineffective_open_options.rs
index 7a751514b64..a159f615718 100644
--- a/src/tools/clippy/clippy_lints/src/ineffective_open_options.rs
+++ b/src/tools/clippy/clippy_lints/src/ineffective_open_options.rs
@@ -1,13 +1,12 @@
-use crate::methods::method_call;
 use clippy_utils::diagnostics::span_lint_and_sugg;
-use clippy_utils::{peel_blocks, sym};
+use clippy_utils::source::SpanRangeExt;
+use clippy_utils::ty::is_type_diagnostic_item;
+use clippy_utils::{peel_blocks, peel_hir_expr_while, sym};
 use rustc_ast::LitKind;
 use rustc_errors::Applicability;
 use rustc_hir::{Expr, ExprKind};
 use rustc_lint::{LateContext, LateLintPass};
-use rustc_middle::ty;
 use rustc_session::declare_lint_pass;
-use rustc_span::{BytePos, Span};
 
 declare_clippy_lint! {
     /// ### What it does
@@ -43,53 +42,58 @@ declare_clippy_lint! {
 
 declare_lint_pass!(IneffectiveOpenOptions => [INEFFECTIVE_OPEN_OPTIONS]);
 
-fn index_if_arg_is_boolean(args: &[Expr<'_>], call_span: Span) -> Option<Span> {
-    if let [arg] = args
-        && let ExprKind::Lit(lit) = peel_blocks(arg).kind
-        && lit.node == LitKind::Bool(true)
-    {
-        // The `.` is not included in the span so we cheat a little bit to include it as well.
-        Some(call_span.with_lo(call_span.lo() - BytePos(1)))
-    } else {
-        None
-    }
-}
-
 impl<'tcx> LateLintPass<'tcx> for IneffectiveOpenOptions {
     fn check_expr(&mut self, cx: &LateContext<'tcx>, expr: &'tcx Expr<'_>) {
-        let Some((sym::open, mut receiver, [_arg], _, _)) = method_call(expr) else {
-            return;
-        };
-        let receiver_ty = cx.typeck_results().expr_ty(receiver);
-        match receiver_ty.peel_refs().kind() {
-            ty::Adt(adt, _) if cx.tcx.is_diagnostic_item(sym::FsOpenOptions, adt.did()) => {},
-            _ => return,
-        }
-
-        let mut append = None;
-        let mut write = None;
+        if let ExprKind::MethodCall(name, recv, [_], _) = expr.kind
+            && name.ident.name == sym::open
+            && !expr.span.from_expansion()
+            && is_type_diagnostic_item(cx, cx.typeck_results().expr_ty(recv).peel_refs(), sym::FsOpenOptions)
+        {
+            let mut append = false;
+            let mut write = None;
+            peel_hir_expr_while(recv, |e| {
+                if let ExprKind::MethodCall(name, recv, args, call_span) = e.kind
+                    && !e.span.from_expansion()
+                {
+                    if let [arg] = args
+                        && let ExprKind::Lit(lit) = peel_blocks(arg).kind
+                        && matches!(lit.node, LitKind::Bool(true))
+                        && !arg.span.from_expansion()
+                        && !lit.span.from_expansion()
+                    {
+                        match name.ident.name {
+                            sym::append => append = true,
+                            sym::write
+                                if let Some(range) = call_span.map_range(cx, |_, text, range| {
+                                    if text.get(..range.start)?.ends_with('.') {
+                                        Some(range.start - 1..range.end)
+                                    } else {
+                                        None
+                                    }
+                                }) =>
+                            {
+                                write = Some(call_span.with_lo(range.start));
+                            },
+                            _ => {},
+                        }
+                    }
+                    Some(recv)
+                } else {
+                    None
+                }
+            });
 
-        while let Some((name, recv, args, _, span)) = method_call(receiver) {
-            if name == sym::append {
-                append = index_if_arg_is_boolean(args, span);
-            } else if name == sym::write {
-                write = index_if_arg_is_boolean(args, span);
+            if append && let Some(write_span) = write {
+                span_lint_and_sugg(
+                    cx,
+                    INEFFECTIVE_OPEN_OPTIONS,
+                    write_span,
+                    "unnecessary use of `.write(true)` because there is `.append(true)`",
+                    "remove `.write(true)`",
+                    String::new(),
+                    Applicability::MachineApplicable,
+                );
             }
-            receiver = recv;
-        }
-
-        if let Some(write_span) = write
-            && append.is_some()
-        {
-            span_lint_and_sugg(
-                cx,
-                INEFFECTIVE_OPEN_OPTIONS,
-                write_span,
-                "unnecessary use of `.write(true)` because there is `.append(true)`",
-                "remove `.write(true)`",
-                String::new(),
-                Applicability::MachineApplicable,
-            );
         }
     }
 }
diff --git a/src/tools/clippy/clippy_lints/src/infallible_try_from.rs b/src/tools/clippy/clippy_lints/src/infallible_try_from.rs
index e79fcec6e6a..f7cdf05359a 100644
--- a/src/tools/clippy/clippy_lints/src/infallible_try_from.rs
+++ b/src/tools/clippy/clippy_lints/src/infallible_try_from.rs
@@ -52,13 +52,17 @@ impl<'tcx> LateLintPass<'tcx> for InfallibleTryFrom {
         if !cx.tcx.is_diagnostic_item(sym::TryFrom, trait_def_id) {
             return;
         }
-        for ii in cx.tcx.associated_items(item.owner_id.def_id)
+        for ii in cx
+            .tcx
+            .associated_items(item.owner_id.def_id)
             .filter_by_name_unhygienic_and_kind(sym::Error, AssocTag::Type)
         {
             let ii_ty = cx.tcx.type_of(ii.def_id).instantiate_identity();
             if !ii_ty.is_inhabited_from(cx.tcx, ii.def_id, cx.typing_env()) {
                 let mut span = MultiSpan::from_span(cx.tcx.def_span(item.owner_id.to_def_id()));
-                let ii_ty_span = cx.tcx.hir_node_by_def_id(ii.def_id.expect_local())
+                let ii_ty_span = cx
+                    .tcx
+                    .hir_node_by_def_id(ii.def_id.expect_local())
                     .expect_impl_item()
                     .expect_type()
                     .span;
diff --git a/src/tools/clippy/clippy_lints/src/item_name_repetitions.rs b/src/tools/clippy/clippy_lints/src/item_name_repetitions.rs
index 9c91cf68085..95e16aae40f 100644
--- a/src/tools/clippy/clippy_lints/src/item_name_repetitions.rs
+++ b/src/tools/clippy/clippy_lints/src/item_name_repetitions.rs
@@ -8,6 +8,7 @@ use rustc_data_structures::fx::FxHashSet;
 use rustc_hir::{EnumDef, FieldDef, Item, ItemKind, OwnerId, QPath, TyKind, Variant, VariantData};
 use rustc_lint::{LateContext, LateLintPass};
 use rustc_session::impl_lint_pass;
+use rustc_span::MacroKind;
 use rustc_span::symbol::Symbol;
 
 declare_clippy_lint! {
@@ -502,7 +503,8 @@ impl LateLintPass<'_> for ItemNameRepetitions {
                 );
             }
 
-            if both_are_public && item_camel.len() > mod_camel.len() {
+            let is_macro_rule = matches!(item.kind, ItemKind::Macro(_, _, MacroKind::Bang));
+            if both_are_public && item_camel.len() > mod_camel.len() && !is_macro_rule {
                 let matching = count_match_start(mod_camel, &item_camel);
                 let rmatching = count_match_end(mod_camel, &item_camel);
                 let nchars = mod_camel.chars().count();
diff --git a/src/tools/clippy/clippy_lints/src/iter_without_into_iter.rs b/src/tools/clippy/clippy_lints/src/iter_without_into_iter.rs
index 03038f0ab49..b89f91f7255 100644
--- a/src/tools/clippy/clippy_lints/src/iter_without_into_iter.rs
+++ b/src/tools/clippy/clippy_lints/src/iter_without_into_iter.rs
@@ -139,11 +139,17 @@ impl LateLintPass<'_> for IterWithoutIntoIter {
                 // We can't check inherent impls for slices, but we know that they have an `iter(_mut)` method
                 ty.peel_refs().is_slice() || get_adt_inherent_method(cx, ty, expected_method_name).is_some()
             })
-            && let Some(iter_assoc_span) = cx.tcx.associated_items(item.owner_id)
+            && let Some(iter_assoc_span) = cx
+                .tcx
+                .associated_items(item.owner_id)
                 .filter_by_name_unhygienic_and_kind(sym::IntoIter, ty::AssocTag::Type)
                 .next()
                 .map(|assoc_item| {
-                    cx.tcx.hir_node_by_def_id(assoc_item.def_id.expect_local()).expect_impl_item().expect_type().span
+                    cx.tcx
+                        .hir_node_by_def_id(assoc_item.def_id.expect_local())
+                        .expect_impl_item()
+                        .expect_type()
+                        .span
                 })
             && is_ty_exported(cx, ty)
         {
diff --git a/src/tools/clippy/clippy_lints/src/large_enum_variant.rs b/src/tools/clippy/clippy_lints/src/large_enum_variant.rs
index e85d779b488..c2b73943106 100644
--- a/src/tools/clippy/clippy_lints/src/large_enum_variant.rs
+++ b/src/tools/clippy/clippy_lints/src/large_enum_variant.rs
@@ -1,5 +1,6 @@
 use clippy_config::Conf;
 use clippy_utils::diagnostics::span_lint_and_then;
+use clippy_utils::is_no_std_crate;
 use clippy_utils::source::snippet_with_applicability;
 use clippy_utils::ty::{AdtVariantInfo, approx_ty_size, is_copy};
 use rustc_errors::Applicability;
@@ -83,7 +84,7 @@ impl<'tcx> LateLintPass<'tcx> for LargeEnumVariant {
 
             let mut difference = variants_size[0].size - variants_size[1].size;
             if difference > self.maximum_size_difference_allowed {
-                let help_text = "consider boxing the large fields to reduce the total size of the enum";
+                let help_text = "consider boxing the large fields or introducing indirection in some other way to reduce the total size of the enum";
                 span_lint_and_then(
                     cx,
                     LARGE_ENUM_VARIANT,
@@ -117,7 +118,7 @@ impl<'tcx> LateLintPass<'tcx> for LargeEnumVariant {
                                 ident.span,
                                 "boxing a variant would require the type no longer be `Copy`",
                             );
-                        } else {
+                        } else if !is_no_std_crate(cx) {
                             let sugg: Vec<(Span, String)> = variants_size[0]
                                 .fields_size
                                 .iter()
diff --git a/src/tools/clippy/clippy_lints/src/legacy_numeric_constants.rs b/src/tools/clippy/clippy_lints/src/legacy_numeric_constants.rs
index b3c63f022d3..42c636505c0 100644
--- a/src/tools/clippy/clippy_lints/src/legacy_numeric_constants.rs
+++ b/src/tools/clippy/clippy_lints/src/legacy_numeric_constants.rs
@@ -1,7 +1,8 @@
 use clippy_config::Conf;
-use clippy_utils::diagnostics::{span_lint_and_then, span_lint_hir_and_then};
+use clippy_utils::diagnostics::span_lint_and_then;
+use clippy_utils::is_from_proc_macro;
 use clippy_utils::msrvs::{self, Msrv};
-use clippy_utils::{get_parent_expr, is_from_proc_macro};
+use clippy_utils::source::SpanRangeExt;
 use hir::def_id::DefId;
 use rustc_errors::Applicability;
 use rustc_hir as hir;
@@ -102,39 +103,45 @@ impl<'tcx> LateLintPass<'tcx> for LegacyNumericConstants {
     }
 
     fn check_expr(&mut self, cx: &LateContext<'tcx>, expr: &'tcx rustc_hir::Expr<'tcx>) {
-        let ExprKind::Path(qpath) = &expr.kind else {
-            return;
-        };
-
         // `std::<integer>::<CONST>` check
-        let (span, sugg, msg) = if let QPath::Resolved(None, path) = qpath
+        let (sugg, msg) = if let ExprKind::Path(qpath) = &expr.kind
+            && let QPath::Resolved(None, path) = qpath
             && let Some(def_id) = path.res.opt_def_id()
             && is_numeric_const(cx, def_id)
-            && let def_path = cx.get_def_path(def_id)
-            && let [.., mod_name, name] = &*def_path
+            && let [.., mod_name, name] = &*cx.get_def_path(def_id)
             // Skip linting if this usage looks identical to the associated constant,
             // since this would only require removing a `use` import (which is already linted).
             && !is_numeric_const_path_canonical(path, [*mod_name, *name])
         {
             (
-                expr.span,
-                format!("{mod_name}::{name}"),
+                vec![(expr.span, format!("{mod_name}::{name}"))],
                 "usage of a legacy numeric constant",
             )
         // `<integer>::xxx_value` check
-        } else if let QPath::TypeRelative(_, last_segment) = qpath
-            && let Some(def_id) = cx.qpath_res(qpath, expr.hir_id).opt_def_id()
-            && let Some(par_expr) = get_parent_expr(cx, expr)
-            && let ExprKind::Call(_, []) = par_expr.kind
+        } else if let ExprKind::Call(func, []) = &expr.kind
+            && let ExprKind::Path(qpath) = &func.kind
+            && let QPath::TypeRelative(ty, last_segment) = qpath
+            && let Some(def_id) = cx.qpath_res(qpath, func.hir_id).opt_def_id()
             && is_integer_method(cx, def_id)
         {
-            let name = last_segment.ident.name.as_str();
-
-            (
-                last_segment.ident.span.with_hi(par_expr.span.hi()),
-                name[..=2].to_ascii_uppercase(),
-                "usage of a legacy numeric method",
-            )
+            let mut sugg = vec![
+                // Replace the function name up to the end by the constant name
+                (
+                    last_segment.ident.span.to(expr.span.shrink_to_hi()),
+                    last_segment.ident.name.as_str()[..=2].to_ascii_uppercase(),
+                ),
+            ];
+            let before_span = expr.span.shrink_to_lo().until(ty.span);
+            if !before_span.is_empty() {
+                // Remove everything before the type name
+                sugg.push((before_span, String::new()));
+            }
+            // Use `::` between the type name and the constant
+            let between_span = ty.span.shrink_to_hi().until(last_segment.ident.span);
+            if !between_span.check_source_text(cx, |s| s == "::") {
+                sugg.push((between_span, String::from("::")));
+            }
+            (sugg, "usage of a legacy numeric method")
         } else {
             return;
         };
@@ -143,9 +150,8 @@ impl<'tcx> LateLintPass<'tcx> for LegacyNumericConstants {
             && self.msrv.meets(cx, msrvs::NUMERIC_ASSOCIATED_CONSTANTS)
             && !is_from_proc_macro(cx, expr)
         {
-            span_lint_hir_and_then(cx, LEGACY_NUMERIC_CONSTANTS, expr.hir_id, span, msg, |diag| {
-                diag.span_suggestion_verbose(
-                    span,
+            span_lint_and_then(cx, LEGACY_NUMERIC_CONSTANTS, expr.span, msg, |diag| {
+                diag.multipart_suggestion_verbose(
                     "use the associated constant instead",
                     sugg,
                     Applicability::MaybeIncorrect,
diff --git a/src/tools/clippy/clippy_lints/src/len_zero.rs b/src/tools/clippy/clippy_lints/src/len_zero.rs
index 1bf03480c82..6beddc1be14 100644
--- a/src/tools/clippy/clippy_lints/src/len_zero.rs
+++ b/src/tools/clippy/clippy_lints/src/len_zero.rs
@@ -10,9 +10,9 @@ use rustc_errors::Applicability;
 use rustc_hir::def::Res;
 use rustc_hir::def_id::{DefId, DefIdSet};
 use rustc_hir::{
-    BinOpKind, Expr, ExprKind, FnRetTy, GenericArg, GenericBound, HirId, ImplItem, ImplItemKind,
-    ImplicitSelfKind, Item, ItemKind, Mutability, Node, OpaqueTyOrigin, PatExprKind, PatKind, PathSegment, PrimTy,
-    QPath, TraitItemId, TyKind,
+    BinOpKind, Expr, ExprKind, FnRetTy, GenericArg, GenericBound, HirId, ImplItem, ImplItemKind, ImplicitSelfKind,
+    Item, ItemKind, Mutability, Node, OpaqueTyOrigin, PatExprKind, PatKind, PathSegment, PrimTy, QPath, TraitItemId,
+    TyKind,
 };
 use rustc_lint::{LateContext, LateLintPass};
 use rustc_middle::ty::{self, FnSig, Ty};
@@ -266,11 +266,14 @@ fn span_without_enclosing_paren(cx: &LateContext<'_>, span: Span) -> Span {
 }
 
 fn check_trait_items(cx: &LateContext<'_>, visited_trait: &Item<'_>, ident: Ident, trait_items: &[TraitItemId]) {
-    fn is_named_self(cx: &LateContext<'_>, item: &TraitItemId, name: Symbol) -> bool {
+    fn is_named_self(cx: &LateContext<'_>, item: TraitItemId, name: Symbol) -> bool {
         cx.tcx.item_name(item.owner_id) == name
             && matches!(
                 cx.tcx.fn_arg_idents(item.owner_id),
-                [Some(Ident { name: kw::SelfLower, .. })],
+                [Some(Ident {
+                    name: kw::SelfLower,
+                    ..
+                })],
             )
     }
 
@@ -284,7 +287,7 @@ fn check_trait_items(cx: &LateContext<'_>, visited_trait: &Item<'_>, ident: Iden
     }
 
     if cx.effective_visibilities.is_exported(visited_trait.owner_id.def_id)
-        && trait_items.iter().any(|i| is_named_self(cx, i, sym::len))
+        && trait_items.iter().any(|&i| is_named_self(cx, i, sym::len))
     {
         let mut current_and_super_traits = DefIdSet::default();
         fill_trait_set(visited_trait.owner_id.to_def_id(), &mut current_and_super_traits, cx);
diff --git a/src/tools/clippy/clippy_lints/src/loops/needless_range_loop.rs b/src/tools/clippy/clippy_lints/src/loops/needless_range_loop.rs
index 7837b18bcd3..972b0b110e0 100644
--- a/src/tools/clippy/clippy_lints/src/loops/needless_range_loop.rs
+++ b/src/tools/clippy/clippy_lints/src/loops/needless_range_loop.rs
@@ -39,7 +39,9 @@ pub(super) fn check<'tcx>(
             var: canonical_id,
             indexed_mut: FxHashSet::default(),
             indexed_indirectly: FxHashMap::default(),
+            unnamed_indexed_indirectly: false,
             indexed_directly: FxIndexMap::default(),
+            unnamed_indexed_directly: false,
             referenced: FxHashSet::default(),
             nonindex: false,
             prefer_mutable: false,
@@ -47,7 +49,11 @@ pub(super) fn check<'tcx>(
         walk_expr(&mut visitor, body);
 
         // linting condition: we only indexed one variable, and indexed it directly
-        if visitor.indexed_indirectly.is_empty() && visitor.indexed_directly.len() == 1 {
+        if visitor.indexed_indirectly.is_empty()
+            && !visitor.unnamed_indexed_indirectly
+            && !visitor.unnamed_indexed_directly
+            && visitor.indexed_directly.len() == 1
+        {
             let (indexed, (indexed_extent, indexed_ty)) = visitor
                 .indexed_directly
                 .into_iter()
@@ -217,6 +223,7 @@ fn is_end_eq_array_len<'tcx>(
     false
 }
 
+#[expect(clippy::struct_excessive_bools)]
 struct VarVisitor<'a, 'tcx> {
     /// context reference
     cx: &'a LateContext<'tcx>,
@@ -226,9 +233,13 @@ struct VarVisitor<'a, 'tcx> {
     indexed_mut: FxHashSet<Symbol>,
     /// indirectly indexed variables (`v[(i + 4) % N]`), the extend is `None` for global
     indexed_indirectly: FxHashMap<Symbol, Option<region::Scope>>,
+    /// indirectly indexed literals, like `[1, 2, 3][(i + 4) % N]`
+    unnamed_indexed_indirectly: bool,
     /// subset of `indexed` of vars that are indexed directly: `v[i]`
     /// this will not contain cases like `v[calc_index(i)]` or `v[(i + 4) % N]`
     indexed_directly: FxIndexMap<Symbol, (Option<region::Scope>, Ty<'tcx>)>,
+    /// directly indexed literals, like `[1, 2, 3][i]`
+    unnamed_indexed_directly: bool,
     /// Any names that are used outside an index operation.
     /// Used to detect things like `&mut vec` used together with `vec[i]`
     referenced: FxHashSet<Symbol>,
@@ -242,6 +253,7 @@ struct VarVisitor<'a, 'tcx> {
 
 impl<'tcx> VarVisitor<'_, 'tcx> {
     fn check(&mut self, idx: &'tcx Expr<'_>, seqexpr: &'tcx Expr<'_>, expr: &'tcx Expr<'_>) -> bool {
+        let index_used_directly = matches!(idx.kind, ExprKind::Path(_));
         if let ExprKind::Path(ref seqpath) = seqexpr.kind
             // the indexed container is referenced by a name
             && let QPath::Resolved(None, seqvar) = *seqpath
@@ -251,7 +263,6 @@ impl<'tcx> VarVisitor<'_, 'tcx> {
             if self.prefer_mutable {
                 self.indexed_mut.insert(seqvar.segments[0].ident.name);
             }
-            let index_used_directly = matches!(idx.kind, ExprKind::Path(_));
             let res = self.cx.qpath_res(seqpath, seqexpr.hir_id);
             match res {
                 Res::Local(hir_id) => {
@@ -286,6 +297,13 @@ impl<'tcx> VarVisitor<'_, 'tcx> {
                 },
                 _ => (),
             }
+        } else if let ExprKind::Repeat(..) | ExprKind::Array(..) = seqexpr.kind {
+            if index_used_directly {
+                self.unnamed_indexed_directly = true;
+            } else {
+                self.unnamed_indexed_indirectly = true;
+            }
+            return false;
         }
         true
     }
diff --git a/src/tools/clippy/clippy_lints/src/loops/never_loop.rs b/src/tools/clippy/clippy_lints/src/loops/never_loop.rs
index 69c84bc7038..8a253ae5810 100644
--- a/src/tools/clippy/clippy_lints/src/loops/never_loop.rs
+++ b/src/tools/clippy/clippy_lints/src/loops/never_loop.rs
@@ -6,9 +6,11 @@ use clippy_utils::macros::root_macro_call_first_node;
 use clippy_utils::source::snippet;
 use clippy_utils::visitors::{Descend, for_each_expr_without_closures};
 use rustc_errors::Applicability;
-use rustc_hir::{Block, Destination, Expr, ExprKind, HirId, InlineAsmOperand, Pat, Stmt, StmtKind, StructTailExpr};
+use rustc_hir::{
+    Block, Destination, Expr, ExprKind, HirId, InlineAsmOperand, Node, Pat, Stmt, StmtKind, StructTailExpr,
+};
 use rustc_lint::LateContext;
-use rustc_span::{Span, sym};
+use rustc_span::{BytePos, Span, sym};
 use std::iter::once;
 use std::ops::ControlFlow;
 
@@ -20,7 +22,7 @@ pub(super) fn check<'tcx>(
     for_loop: Option<&ForLoop<'_>>,
 ) {
     match never_loop_block(cx, block, &mut Vec::new(), loop_id) {
-        NeverLoopResult::Diverging => {
+        NeverLoopResult::Diverging { ref break_spans } => {
             span_lint_and_then(cx, NEVER_LOOP, span, "this loop never actually loops", |diag| {
                 if let Some(ForLoop {
                     arg: iterator,
@@ -38,10 +40,15 @@ pub(super) fn check<'tcx>(
                         Applicability::Unspecified
                     };
 
-                    diag.span_suggestion_verbose(
+                    let mut suggestions = vec![(
                         for_span.with_hi(iterator.span.hi()),
-                        "if you need the first element of the iterator, try writing",
                         for_to_if_let_sugg(cx, iterator, pat),
+                    )];
+                    // Make sure to clear up the diverging sites when we remove a loopp.
+                    suggestions.extend(break_spans.iter().map(|span| (*span, String::new())));
+                    diag.multipart_suggestion_verbose(
+                        "if you need the first element of the iterator, try writing",
+                        suggestions,
                         app,
                     );
                 }
@@ -70,22 +77,22 @@ fn contains_any_break_or_continue(block: &Block<'_>) -> bool {
 /// The first two bits of information are in this enum, and the last part is in the
 /// `local_labels` variable, which contains a list of `(block_id, reachable)` pairs ordered by
 /// scope.
-#[derive(Copy, Clone)]
+#[derive(Clone)]
 enum NeverLoopResult {
     /// A continue may occur for the main loop.
     MayContinueMainLoop,
     /// We have not encountered any main loop continue,
     /// but we are diverging (subsequent control flow is not reachable)
-    Diverging,
+    Diverging { break_spans: Vec<Span> },
     /// We have not encountered any main loop continue,
     /// and subsequent control flow is (possibly) reachable
     Normal,
 }
 
 #[must_use]
-fn absorb_break(arg: NeverLoopResult) -> NeverLoopResult {
+fn absorb_break(arg: &NeverLoopResult) -> NeverLoopResult {
     match arg {
-        NeverLoopResult::Diverging | NeverLoopResult::Normal => NeverLoopResult::Normal,
+        NeverLoopResult::Diverging { .. } | NeverLoopResult::Normal => NeverLoopResult::Normal,
         NeverLoopResult::MayContinueMainLoop => NeverLoopResult::MayContinueMainLoop,
     }
 }
@@ -94,7 +101,7 @@ fn absorb_break(arg: NeverLoopResult) -> NeverLoopResult {
 #[must_use]
 fn combine_seq(first: NeverLoopResult, second: impl FnOnce() -> NeverLoopResult) -> NeverLoopResult {
     match first {
-        NeverLoopResult::Diverging | NeverLoopResult::MayContinueMainLoop => first,
+        NeverLoopResult::Diverging { .. } | NeverLoopResult::MayContinueMainLoop => first,
         NeverLoopResult::Normal => second(),
     }
 }
@@ -103,7 +110,7 @@ fn combine_seq(first: NeverLoopResult, second: impl FnOnce() -> NeverLoopResult)
 #[must_use]
 fn combine_seq_many(iter: impl IntoIterator<Item = NeverLoopResult>) -> NeverLoopResult {
     for e in iter {
-        if let NeverLoopResult::Diverging | NeverLoopResult::MayContinueMainLoop = e {
+        if let NeverLoopResult::Diverging { .. } | NeverLoopResult::MayContinueMainLoop = e {
             return e;
         }
     }
@@ -118,7 +125,19 @@ fn combine_branches(b1: NeverLoopResult, b2: NeverLoopResult) -> NeverLoopResult
             NeverLoopResult::MayContinueMainLoop
         },
         (NeverLoopResult::Normal, _) | (_, NeverLoopResult::Normal) => NeverLoopResult::Normal,
-        (NeverLoopResult::Diverging, NeverLoopResult::Diverging) => NeverLoopResult::Diverging,
+        (
+            NeverLoopResult::Diverging {
+                break_spans: mut break_spans1,
+            },
+            NeverLoopResult::Diverging {
+                break_spans: mut break_spans2,
+            },
+        ) => {
+            break_spans1.append(&mut break_spans2);
+            NeverLoopResult::Diverging {
+                break_spans: break_spans1,
+            }
+        },
     }
 }
 
@@ -136,7 +155,7 @@ fn never_loop_block<'tcx>(
     combine_seq_many(iter.map(|(e, els)| {
         let e = never_loop_expr(cx, e, local_labels, main_loop_id);
         // els is an else block in a let...else binding
-        els.map_or(e, |els| {
+        els.map_or(e.clone(), |els| {
             combine_seq(e, || match never_loop_block(cx, els, local_labels, main_loop_id) {
                 // Returning MayContinueMainLoop here means that
                 // we will not evaluate the rest of the body
@@ -144,7 +163,7 @@ fn never_loop_block<'tcx>(
                 // An else block always diverges, so the Normal case should not happen,
                 // but the analysis is approximate so it might return Normal anyway.
                 // Returning Normal here says that nothing more happens on the main path
-                NeverLoopResult::Diverging | NeverLoopResult::Normal => NeverLoopResult::Normal,
+                NeverLoopResult::Diverging { .. } | NeverLoopResult::Normal => NeverLoopResult::Normal,
             })
         })
     }))
@@ -159,6 +178,45 @@ fn stmt_to_expr<'tcx>(stmt: &Stmt<'tcx>) -> Option<(&'tcx Expr<'tcx>, Option<&'t
     }
 }
 
+fn stmt_source_span(stmt: &Stmt<'_>) -> Span {
+    let call_span = stmt.span.source_callsite();
+    // if it is a macro call, the span will be missing the trailing semicolon
+    if stmt.span == call_span {
+        return call_span;
+    }
+
+    // An expression without a trailing semi-colon (must have unit type).
+    if let StmtKind::Expr(..) = stmt.kind {
+        return call_span;
+    }
+
+    call_span.with_hi(call_span.hi() + BytePos(1))
+}
+
+/// Returns a Vec of all the individual spans after the highlighted expression in a block
+fn all_spans_after_expr(cx: &LateContext<'_>, expr: &Expr<'_>) -> Vec<Span> {
+    if let Node::Stmt(stmt) = cx.tcx.parent_hir_node(expr.hir_id) {
+        if let Node::Block(block) = cx.tcx.parent_hir_node(stmt.hir_id) {
+            return block
+                .stmts
+                .iter()
+                .skip_while(|inner| inner.hir_id != stmt.hir_id)
+                .map(stmt_source_span)
+                .chain(if let Some(e) = block.expr { vec![e.span] } else { vec![] })
+                .collect();
+        }
+
+        return vec![stmt.span];
+    }
+
+    vec![]
+}
+
+fn is_label_for_block(cx: &LateContext<'_>, dest: &Destination) -> bool {
+    dest.target_id
+        .is_ok_and(|hir_id| matches!(cx.tcx.hir_node(hir_id), Node::Block(_)))
+}
+
 #[allow(clippy::too_many_lines)]
 fn never_loop_expr<'tcx>(
     cx: &LateContext<'tcx>,
@@ -197,7 +255,7 @@ fn never_loop_expr<'tcx>(
         ExprKind::Loop(b, _, _, _) => {
             // We don't attempt to track reachability after a loop,
             // just assume there may have been a break somewhere
-            absorb_break(never_loop_block(cx, b, local_labels, main_loop_id))
+            absorb_break(&never_loop_block(cx, b, local_labels, main_loop_id))
         },
         ExprKind::If(e, e2, e3) => {
             let e1 = never_loop_expr(cx, e, local_labels, main_loop_id);
@@ -212,9 +270,10 @@ fn never_loop_expr<'tcx>(
         ExprKind::Match(e, arms, _) => {
             let e = never_loop_expr(cx, e, local_labels, main_loop_id);
             combine_seq(e, || {
-                arms.iter().fold(NeverLoopResult::Diverging, |a, b| {
-                    combine_branches(a, never_loop_expr(cx, b.body, local_labels, main_loop_id))
-                })
+                arms.iter()
+                    .fold(NeverLoopResult::Diverging { break_spans: vec![] }, |a, b| {
+                        combine_branches(a, never_loop_expr(cx, b.body, local_labels, main_loop_id))
+                    })
             })
         },
         ExprKind::Block(b, _) => {
@@ -224,7 +283,7 @@ fn never_loop_expr<'tcx>(
             let ret = never_loop_block(cx, b, local_labels, main_loop_id);
             let jumped_to = b.targeted_by_break && local_labels.pop().unwrap().1;
             match ret {
-                NeverLoopResult::Diverging if jumped_to => NeverLoopResult::Normal,
+                NeverLoopResult::Diverging { .. } if jumped_to => NeverLoopResult::Normal,
                 _ => ret,
             }
         },
@@ -235,25 +294,39 @@ fn never_loop_expr<'tcx>(
             if id == main_loop_id {
                 NeverLoopResult::MayContinueMainLoop
             } else {
-                NeverLoopResult::Diverging
+                NeverLoopResult::Diverging {
+                    break_spans: all_spans_after_expr(cx, expr),
+                }
             }
         },
-        ExprKind::Break(_, e) | ExprKind::Ret(e) => {
+        ExprKind::Ret(e) => {
             let first = e.as_ref().map_or(NeverLoopResult::Normal, |e| {
                 never_loop_expr(cx, e, local_labels, main_loop_id)
             });
             combine_seq(first, || {
                 // checks if break targets a block instead of a loop
-                if let ExprKind::Break(Destination { target_id: Ok(t), .. }, _) = expr.kind
-                    && let Some((_, reachable)) = local_labels.iter_mut().find(|(label, _)| *label == t)
-                {
-                    *reachable = true;
+                mark_block_as_reachable(expr, local_labels);
+                NeverLoopResult::Diverging { break_spans: vec![] }
+            })
+        },
+        ExprKind::Break(dest, e) => {
+            let first = e.as_ref().map_or(NeverLoopResult::Normal, |e| {
+                never_loop_expr(cx, e, local_labels, main_loop_id)
+            });
+            combine_seq(first, || {
+                // checks if break targets a block instead of a loop
+                mark_block_as_reachable(expr, local_labels);
+                NeverLoopResult::Diverging {
+                    break_spans: if is_label_for_block(cx, &dest) {
+                        vec![]
+                    } else {
+                        all_spans_after_expr(cx, expr)
+                    },
                 }
-                NeverLoopResult::Diverging
             })
         },
         ExprKind::Become(e) => combine_seq(never_loop_expr(cx, e, local_labels, main_loop_id), || {
-            NeverLoopResult::Diverging
+            NeverLoopResult::Diverging { break_spans: vec![] }
         }),
         ExprKind::InlineAsm(asm) => combine_seq_many(asm.operands.iter().map(|(o, _)| match o {
             InlineAsmOperand::In { expr, .. } | InlineAsmOperand::InOut { expr, .. } => {
@@ -283,12 +356,12 @@ fn never_loop_expr<'tcx>(
     };
     let result = combine_seq(result, || {
         if cx.typeck_results().expr_ty(expr).is_never() {
-            NeverLoopResult::Diverging
+            NeverLoopResult::Diverging { break_spans: vec![] }
         } else {
             NeverLoopResult::Normal
         }
     });
-    if let NeverLoopResult::Diverging = result
+    if let NeverLoopResult::Diverging { .. } = result
         && let Some(macro_call) = root_macro_call_first_node(cx, expr)
         && let Some(sym::todo_macro) = cx.tcx.get_diagnostic_name(macro_call.def_id)
     {
@@ -316,3 +389,11 @@ fn for_to_if_let_sugg(cx: &LateContext<'_>, iterator: &Expr<'_>, pat: &Pat<'_>)
 
     format!("if let Some({pat_snippet}) = {iter_snippet}.next()")
 }
+
+fn mark_block_as_reachable(expr: &Expr<'_>, local_labels: &mut [(HirId, bool)]) {
+    if let ExprKind::Break(Destination { target_id: Ok(t), .. }, _) = expr.kind
+        && let Some((_, reachable)) = local_labels.iter_mut().find(|(label, _)| *label == t)
+    {
+        *reachable = true;
+    }
+}
diff --git a/src/tools/clippy/clippy_lints/src/macro_use.rs b/src/tools/clippy/clippy_lints/src/macro_use.rs
index c1a26c5a9c7..3aa449f6411 100644
--- a/src/tools/clippy/clippy_lints/src/macro_use.rs
+++ b/src/tools/clippy/clippy_lints/src/macro_use.rs
@@ -1,13 +1,14 @@
 use clippy_utils::diagnostics::span_lint_hir_and_then;
 use clippy_utils::source::snippet;
 use hir::def::{DefKind, Res};
+use rustc_attr_data_structures::{AttributeKind, find_attr};
 use rustc_data_structures::fx::FxHashSet;
 use rustc_errors::Applicability;
 use rustc_hir::{self as hir, AmbigArg};
 use rustc_lint::{LateContext, LateLintPass, LintContext};
 use rustc_session::impl_lint_pass;
+use rustc_span::Span;
 use rustc_span::edition::Edition;
-use rustc_span::{Span, sym};
 use std::collections::BTreeMap;
 
 declare_clippy_lint! {
@@ -99,15 +100,14 @@ impl LateLintPass<'_> for MacroUseImports {
             && let hir::ItemKind::Use(path, _kind) = &item.kind
             && let hir_id = item.hir_id()
             && let attrs = cx.tcx.hir_attrs(hir_id)
-            && let Some(mac_attr) = attrs.iter().find(|attr| attr.has_name(sym::macro_use))
+            && let Some(mac_attr_span) = find_attr!(attrs, AttributeKind::MacroUse {span, ..} => *span)
             && let Some(Res::Def(DefKind::Mod, id)) = path.res.type_ns
             && !id.is_local()
         {
             for kid in cx.tcx.module_children(id) {
                 if let Res::Def(DefKind::Macro(_mac_type), mac_id) = kid.res {
-                    let span = mac_attr.span();
                     let def_path = cx.tcx.def_path_str(mac_id);
-                    self.imports.push((def_path, span, hir_id));
+                    self.imports.push((def_path, mac_attr_span, hir_id));
                 }
             }
         } else if item.span.from_expansion() {
diff --git a/src/tools/clippy/clippy_lints/src/manual_abs_diff.rs b/src/tools/clippy/clippy_lints/src/manual_abs_diff.rs
index bac4b3d32f2..288f27db8ca 100644
--- a/src/tools/clippy/clippy_lints/src/manual_abs_diff.rs
+++ b/src/tools/clippy/clippy_lints/src/manual_abs_diff.rs
@@ -5,7 +5,7 @@ use clippy_utils::msrvs::{self, Msrv};
 use clippy_utils::source::HasSession as _;
 use clippy_utils::sugg::Sugg;
 use clippy_utils::ty::is_type_diagnostic_item;
-use clippy_utils::{eq_expr_value, peel_blocks, span_contains_comment};
+use clippy_utils::{eq_expr_value, peel_blocks, peel_middle_ty_refs, span_contains_comment};
 use rustc_errors::Applicability;
 use rustc_hir::{BinOpKind, Expr, ExprKind};
 use rustc_lint::{LateContext, LateLintPass};
@@ -62,7 +62,7 @@ impl<'tcx> LateLintPass<'tcx> for ManualAbsDiff {
             && let ExprKind::Binary(op, rhs, lhs) = if_expr.cond.kind
             && let (BinOpKind::Gt | BinOpKind::Ge, mut a, mut b) | (BinOpKind::Lt | BinOpKind::Le, mut b, mut a) =
                 (op.node, rhs, lhs)
-            && let Some(ty) = self.are_ty_eligible(cx, a, b)
+            && let Some((ty, b_n_refs)) = self.are_ty_eligible(cx, a, b)
             && is_sub_expr(cx, if_expr.then, a, b, ty)
             && is_sub_expr(cx, r#else, b, a, ty)
         {
@@ -86,8 +86,9 @@ impl<'tcx> LateLintPass<'tcx> for ManualAbsDiff {
                         }
                     };
                     let sugg = format!(
-                        "{}.abs_diff({})",
+                        "{}.abs_diff({}{})",
                         Sugg::hir(cx, a, "..").maybe_paren(),
+                        "*".repeat(b_n_refs),
                         Sugg::hir(cx, b, "..")
                     );
                     diag.span_suggestion(expr.span, "replace with `abs_diff`", sugg, applicability);
@@ -100,13 +101,15 @@ impl<'tcx> LateLintPass<'tcx> for ManualAbsDiff {
 impl ManualAbsDiff {
     /// Returns a type if `a` and `b` are both of it, and this lint can be applied to that
     /// type (currently, any primitive int, or a `Duration`)
-    fn are_ty_eligible<'tcx>(&self, cx: &LateContext<'tcx>, a: &Expr<'_>, b: &Expr<'_>) -> Option<Ty<'tcx>> {
+    fn are_ty_eligible<'tcx>(&self, cx: &LateContext<'tcx>, a: &Expr<'_>, b: &Expr<'_>) -> Option<(Ty<'tcx>, usize)> {
         let is_int = |ty: Ty<'_>| matches!(ty.kind(), ty::Uint(_) | ty::Int(_)) && self.msrv.meets(cx, msrvs::ABS_DIFF);
         let is_duration =
             |ty| is_type_diagnostic_item(cx, ty, sym::Duration) && self.msrv.meets(cx, msrvs::DURATION_ABS_DIFF);
 
         let a_ty = cx.typeck_results().expr_ty(a).peel_refs();
-        (a_ty == cx.typeck_results().expr_ty(b).peel_refs() && (is_int(a_ty) || is_duration(a_ty))).then_some(a_ty)
+        let (b_ty, b_n_refs) = peel_middle_ty_refs(cx.typeck_results().expr_ty(b));
+
+        (a_ty == b_ty && (is_int(a_ty) || is_duration(a_ty))).then_some((a_ty, b_n_refs))
     }
 }
 
diff --git a/src/tools/clippy/clippy_lints/src/manual_assert.rs b/src/tools/clippy/clippy_lints/src/manual_assert.rs
index 8378e15c581..ea6b01a053a 100644
--- a/src/tools/clippy/clippy_lints/src/manual_assert.rs
+++ b/src/tools/clippy/clippy_lints/src/manual_assert.rs
@@ -60,7 +60,8 @@ impl<'tcx> LateLintPass<'tcx> for ManualAssert {
                 ExprKind::Unary(UnOp::Not, e) => (e, ""),
                 _ => (cond, "!"),
             };
-            let cond_sugg = sugg::Sugg::hir_with_applicability(cx, cond, "..", &mut applicability).maybe_paren();
+            let cond_sugg =
+                sugg::Sugg::hir_with_context(cx, cond, expr.span.ctxt(), "..", &mut applicability).maybe_paren();
             let semicolon = if is_parent_stmt(cx, expr.hir_id) { ";" } else { "" };
             let sugg = format!("assert!({not}{cond_sugg}, {format_args_snip}){semicolon}");
             // we show to the user the suggestion without the comments, but when applying the fix, include the
diff --git a/src/tools/clippy/clippy_lints/src/matches/single_match.rs b/src/tools/clippy/clippy_lints/src/matches/single_match.rs
index 08c0caa4266..7e530e98ac4 100644
--- a/src/tools/clippy/clippy_lints/src/matches/single_match.rs
+++ b/src/tools/clippy/clippy_lints/src/matches/single_match.rs
@@ -152,21 +152,26 @@ fn report_single_pattern(
             }) if lit.node.is_str() || lit.node.is_bytestr() => pat_ref_count + 1,
             _ => pat_ref_count,
         };
-        // References are only implicitly added to the pattern, so no overflow here.
-        // e.g. will work: match &Some(_) { Some(_) => () }
-        // will not: match Some(_) { &Some(_) => () }
-        let ref_count_diff = ty_ref_count - pat_ref_count;
 
-        // Try to remove address of expressions first.
-        let (ex, removed) = peel_n_hir_expr_refs(ex, ref_count_diff);
-        let ref_count_diff = ref_count_diff - removed;
+        // References are implicitly removed when `deref_patterns` are used.
+        // They are implicitly added when match ergonomics are used.
+        let (ex, ref_or_deref_adjust) = if ty_ref_count > pat_ref_count {
+            let ref_count_diff = ty_ref_count - pat_ref_count;
+
+            // Try to remove address of expressions first.
+            let (ex, removed) = peel_n_hir_expr_refs(ex, ref_count_diff);
+
+            (ex, String::from(if ref_count_diff == removed { "" } else { "&" }))
+        } else {
+            (ex, "*".repeat(pat_ref_count - ty_ref_count))
+        };
 
         let msg = "you seem to be trying to use `match` for an equality check. Consider using `if`";
         let sugg = format!(
             "if {} == {}{} {}{els_str}",
             snippet_with_context(cx, ex.span, ctxt, "..", &mut app).0,
             // PartialEq for different reference counts may not exist.
-            "&".repeat(ref_count_diff),
+            ref_or_deref_adjust,
             snippet_with_applicability(cx, arm.pat.span, "..", &mut app),
             expr_block(cx, arm.body, ctxt, "..", Some(expr.span), &mut app),
         );
diff --git a/src/tools/clippy/clippy_lints/src/methods/expect_fun_call.rs b/src/tools/clippy/clippy_lints/src/methods/expect_fun_call.rs
index 82e5a6d5a41..6e5da5bda8c 100644
--- a/src/tools/clippy/clippy_lints/src/methods/expect_fun_call.rs
+++ b/src/tools/clippy/clippy_lints/src/methods/expect_fun_call.rs
@@ -2,13 +2,15 @@ use clippy_utils::diagnostics::span_lint_and_sugg;
 use clippy_utils::macros::{FormatArgsStorage, format_args_inputs_span, root_macro_call_first_node};
 use clippy_utils::source::snippet_with_applicability;
 use clippy_utils::ty::{is_type_diagnostic_item, is_type_lang_item};
+use clippy_utils::visitors::for_each_expr;
+use clippy_utils::{contains_return, is_inside_always_const_context, peel_blocks};
 use rustc_errors::Applicability;
 use rustc_hir as hir;
 use rustc_lint::LateContext;
-use rustc_middle::ty;
 use rustc_span::symbol::sym;
 use rustc_span::{Span, Symbol};
 use std::borrow::Cow;
+use std::ops::ControlFlow;
 
 use super::EXPECT_FUN_CALL;
 
@@ -23,10 +25,10 @@ pub(super) fn check<'tcx>(
     receiver: &'tcx hir::Expr<'tcx>,
     args: &'tcx [hir::Expr<'tcx>],
 ) {
-    // Strip `&`, `as_ref()` and `as_str()` off `arg` until we're left with either a `String` or
+    // Strip `{}`, `&`, `as_ref()` and `as_str()` off `arg` until we're left with either a `String` or
     // `&str`
     fn get_arg_root<'a>(cx: &LateContext<'_>, arg: &'a hir::Expr<'a>) -> &'a hir::Expr<'a> {
-        let mut arg_root = arg;
+        let mut arg_root = peel_blocks(arg);
         loop {
             arg_root = match &arg_root.kind {
                 hir::ExprKind::AddrOf(hir::BorrowKind::Ref, _, expr) => expr,
@@ -47,124 +49,68 @@ pub(super) fn check<'tcx>(
         arg_root
     }
 
-    // Only `&'static str` or `String` can be used directly in the `panic!`. Other types should be
-    // converted to string.
-    fn requires_to_string(cx: &LateContext<'_>, arg: &hir::Expr<'_>) -> bool {
-        let arg_ty = cx.typeck_results().expr_ty(arg);
-        if is_type_lang_item(cx, arg_ty, hir::LangItem::String) {
-            return false;
-        }
-        if let ty::Ref(_, ty, ..) = arg_ty.kind()
-            && ty.is_str()
-            && can_be_static_str(cx, arg)
-        {
-            return false;
-        }
-        true
+    fn contains_call<'a>(cx: &LateContext<'a>, arg: &'a hir::Expr<'a>) -> bool {
+        for_each_expr(cx, arg, |expr| {
+            if matches!(expr.kind, hir::ExprKind::MethodCall { .. } | hir::ExprKind::Call { .. })
+                && !is_inside_always_const_context(cx.tcx, expr.hir_id)
+            {
+                ControlFlow::Break(())
+            } else {
+                ControlFlow::Continue(())
+            }
+        })
+        .is_some()
     }
 
-    // Check if an expression could have type `&'static str`, knowing that it
-    // has type `&str` for some lifetime.
-    fn can_be_static_str(cx: &LateContext<'_>, arg: &hir::Expr<'_>) -> bool {
-        match arg.kind {
-            hir::ExprKind::Lit(_) => true,
-            hir::ExprKind::Call(fun, _) => {
-                if let hir::ExprKind::Path(ref p) = fun.kind {
-                    match cx.qpath_res(p, fun.hir_id) {
-                        hir::def::Res::Def(hir::def::DefKind::Fn | hir::def::DefKind::AssocFn, def_id) => matches!(
-                            cx.tcx.fn_sig(def_id).instantiate_identity().output().skip_binder().kind(),
-                            ty::Ref(re, ..) if re.is_static(),
-                        ),
-                        _ => false,
-                    }
-                } else {
-                    false
-                }
-            },
-            hir::ExprKind::MethodCall(..) => {
-                cx.typeck_results()
-                    .type_dependent_def_id(arg.hir_id)
-                    .is_some_and(|method_id| {
-                        matches!(
-                            cx.tcx.fn_sig(method_id).instantiate_identity().output().skip_binder().kind(),
-                            ty::Ref(re, ..) if re.is_static()
-                        )
-                    })
-            },
-            hir::ExprKind::Path(ref p) => matches!(
-                cx.qpath_res(p, arg.hir_id),
-                hir::def::Res::Def(hir::def::DefKind::Const | hir::def::DefKind::Static { .. }, _)
-            ),
-            _ => false,
-        }
-    }
+    if name == sym::expect
+        && let [arg] = args
+        && let arg_root = get_arg_root(cx, arg)
+        && contains_call(cx, arg_root)
+        && !contains_return(arg_root)
+    {
+        let receiver_type = cx.typeck_results().expr_ty_adjusted(receiver);
+        let closure_args = if is_type_diagnostic_item(cx, receiver_type, sym::Option) {
+            "||"
+        } else if is_type_diagnostic_item(cx, receiver_type, sym::Result) {
+            "|_|"
+        } else {
+            return;
+        };
 
-    fn is_call(node: &hir::ExprKind<'_>) -> bool {
-        match node {
-            hir::ExprKind::AddrOf(hir::BorrowKind::Ref, _, expr) => {
-                is_call(&expr.kind)
-            },
-            hir::ExprKind::Call(..)
-            | hir::ExprKind::MethodCall(..)
-            // These variants are debatable or require further examination
-            | hir::ExprKind::If(..)
-            | hir::ExprKind::Match(..)
-            | hir::ExprKind::Block{ .. } => true,
-            _ => false,
-        }
-    }
+        let span_replace_word = method_span.with_hi(expr.span.hi());
 
-    if args.len() != 1 || name != sym::expect || !is_call(&args[0].kind) {
-        return;
-    }
+        let mut applicability = Applicability::MachineApplicable;
 
-    let receiver_type = cx.typeck_results().expr_ty_adjusted(receiver);
-    let closure_args = if is_type_diagnostic_item(cx, receiver_type, sym::Option) {
-        "||"
-    } else if is_type_diagnostic_item(cx, receiver_type, sym::Result) {
-        "|_|"
-    } else {
-        return;
-    };
-
-    let arg_root = get_arg_root(cx, &args[0]);
-
-    let span_replace_word = method_span.with_hi(expr.span.hi());
-
-    let mut applicability = Applicability::MachineApplicable;
-
-    // Special handling for `format!` as arg_root
-    if let Some(macro_call) = root_macro_call_first_node(cx, arg_root) {
-        if cx.tcx.is_diagnostic_item(sym::format_macro, macro_call.def_id)
-            && let Some(format_args) = format_args_storage.get(cx, arg_root, macro_call.expn)
-        {
-            let span = format_args_inputs_span(format_args);
-            let sugg = snippet_with_applicability(cx, span, "..", &mut applicability);
-            span_lint_and_sugg(
-                cx,
-                EXPECT_FUN_CALL,
-                span_replace_word,
-                format!("function call inside of `{name}`"),
-                "try",
-                format!("unwrap_or_else({closure_args} panic!({sugg}))"),
-                applicability,
-            );
+        // Special handling for `format!` as arg_root
+        if let Some(macro_call) = root_macro_call_first_node(cx, arg_root) {
+            if cx.tcx.is_diagnostic_item(sym::format_macro, macro_call.def_id)
+                && let Some(format_args) = format_args_storage.get(cx, arg_root, macro_call.expn)
+            {
+                let span = format_args_inputs_span(format_args);
+                let sugg = snippet_with_applicability(cx, span, "..", &mut applicability);
+                span_lint_and_sugg(
+                    cx,
+                    EXPECT_FUN_CALL,
+                    span_replace_word,
+                    format!("function call inside of `{name}`"),
+                    "try",
+                    format!("unwrap_or_else({closure_args} panic!({sugg}))"),
+                    applicability,
+                );
+            }
+            return;
         }
-        return;
-    }
 
-    let mut arg_root_snippet: Cow<'_, _> = snippet_with_applicability(cx, arg_root.span, "..", &mut applicability);
-    if requires_to_string(cx, arg_root) {
-        arg_root_snippet.to_mut().push_str(".to_string()");
-    }
+        let arg_root_snippet: Cow<'_, _> = snippet_with_applicability(cx, arg_root.span, "..", &mut applicability);
 
-    span_lint_and_sugg(
-        cx,
-        EXPECT_FUN_CALL,
-        span_replace_word,
-        format!("function call inside of `{name}`"),
-        "try",
-        format!("unwrap_or_else({closure_args} {{ panic!(\"{{}}\", {arg_root_snippet}) }})"),
-        applicability,
-    );
+        span_lint_and_sugg(
+            cx,
+            EXPECT_FUN_CALL,
+            span_replace_word,
+            format!("function call inside of `{name}`"),
+            "try",
+            format!("unwrap_or_else({closure_args} panic!(\"{{}}\", {arg_root_snippet}))"),
+            applicability,
+        );
+    }
 }
diff --git a/src/tools/clippy/clippy_lints/src/methods/filter_map_bool_then.rs b/src/tools/clippy/clippy_lints/src/methods/filter_map_bool_then.rs
index 965993808f6..94944bd9445 100644
--- a/src/tools/clippy/clippy_lints/src/methods/filter_map_bool_then.rs
+++ b/src/tools/clippy/clippy_lints/src/methods/filter_map_bool_then.rs
@@ -1,6 +1,6 @@
 use super::FILTER_MAP_BOOL_THEN;
 use clippy_utils::diagnostics::span_lint_and_then;
-use clippy_utils::source::SpanRangeExt;
+use clippy_utils::source::{SpanRangeExt, snippet_with_context};
 use clippy_utils::ty::is_copy;
 use clippy_utils::{
     CaptureKind, can_move_expr_to_closure, contains_return, is_from_proc_macro, is_trait_method, peel_blocks,
@@ -45,9 +45,11 @@ pub(super) fn check<'tcx>(cx: &LateContext<'tcx>, expr: &'tcx Expr<'tcx>, arg: &
             .filter(|adj| matches!(adj.kind, Adjust::Deref(_)))
             .count()
         && let Some(param_snippet) = param.span.get_source_text(cx)
-        && let Some(filter) = recv.span.get_source_text(cx)
-        && let Some(map) = then_body.span.get_source_text(cx)
     {
+        let mut applicability = Applicability::MachineApplicable;
+        let (filter, _) = snippet_with_context(cx, recv.span, expr.span.ctxt(), "..", &mut applicability);
+        let (map, _) = snippet_with_context(cx, then_body.span, expr.span.ctxt(), "..", &mut applicability);
+
         span_lint_and_then(
             cx,
             FILTER_MAP_BOOL_THEN,
@@ -62,7 +64,7 @@ pub(super) fn check<'tcx>(cx: &LateContext<'tcx>, expr: &'tcx Expr<'tcx>, arg: &
                             "filter(|&{param_snippet}| {derefs}{filter}).map(|{param_snippet}| {map})",
                             derefs = "*".repeat(needed_derefs)
                         ),
-                        Applicability::MachineApplicable,
+                        applicability,
                     );
                 } else {
                     diag.help("consider using `filter` then `map` instead");
diff --git a/src/tools/clippy/clippy_lints/src/methods/manual_inspect.rs b/src/tools/clippy/clippy_lints/src/methods/manual_inspect.rs
index 21f2ce8b7c9..bc96815944d 100644
--- a/src/tools/clippy/clippy_lints/src/methods/manual_inspect.rs
+++ b/src/tools/clippy/clippy_lints/src/methods/manual_inspect.rs
@@ -100,7 +100,6 @@ pub(crate) fn check(cx: &LateContext<'_>, expr: &Expr<'_>, arg: &Expr<'_>, name:
             match x {
                 UseKind::Return(s) => edits.push((s.with_leading_whitespace(cx).with_ctxt(s.ctxt()), String::new())),
                 UseKind::Borrowed(s) => {
-                    #[expect(clippy::range_plus_one)]
                     let range = s.map_range(cx, |_, src, range| {
                         let src = src.get(range.clone())?;
                         let trimmed = src.trim_start_matches([' ', '\t', '\n', '\r', '(']);
diff --git a/src/tools/clippy/clippy_lints/src/methods/mod.rs b/src/tools/clippy/clippy_lints/src/methods/mod.rs
index f2dabdd3438..bcd54557331 100644
--- a/src/tools/clippy/clippy_lints/src/methods/mod.rs
+++ b/src/tools/clippy/clippy_lints/src/methods/mod.rs
@@ -3859,6 +3859,7 @@ declare_clippy_lint! {
 declare_clippy_lint! {
     /// ### What it does
     /// Checks for usage of `option.map(f).unwrap_or_default()` and `result.map(f).unwrap_or_default()` where f is a function or closure that returns the `bool` type.
+    /// Also checks for equality comparisons like `option.map(f) == Some(true)` and `result.map(f) == Ok(true)`.
     ///
     /// ### Why is this bad?
     /// Readability. These can be written more concisely as `option.is_some_and(f)` and `result.is_ok_and(f)`.
@@ -3869,6 +3870,11 @@ declare_clippy_lint! {
     /// # let result: Result<usize, ()> = Ok(1);
     /// option.map(|a| a > 10).unwrap_or_default();
     /// result.map(|a| a > 10).unwrap_or_default();
+    ///
+    /// option.map(|a| a > 10) == Some(true);
+    /// result.map(|a| a > 10) == Ok(true);
+    /// option.map(|a| a > 10) != Some(true);
+    /// result.map(|a| a > 10) != Ok(true);
     /// ```
     /// Use instead:
     /// ```no_run
@@ -3876,11 +3882,16 @@ declare_clippy_lint! {
     /// # let result: Result<usize, ()> = Ok(1);
     /// option.is_some_and(|a| a > 10);
     /// result.is_ok_and(|a| a > 10);
+    ///
+    /// option.is_some_and(|a| a > 10);
+    /// result.is_ok_and(|a| a > 10);
+    /// option.is_none_or(|a| a > 10);
+    /// !result.is_ok_and(|a| a > 10);
     /// ```
     #[clippy::version = "1.77.0"]
     pub MANUAL_IS_VARIANT_AND,
     pedantic,
-    "using `.map(f).unwrap_or_default()`, which is more succinctly expressed as `is_some_and(f)` or `is_ok_and(f)`"
+    "using `.map(f).unwrap_or_default()` or `.map(f) == Some/Ok(true)`, which are more succinctly expressed as `is_some_and(f)` or `is_ok_and(f)`"
 }
 
 declare_clippy_lint! {
@@ -5275,10 +5286,6 @@ impl Methods {
                     }
                     map_identity::check(cx, expr, recv, m_arg, name, span);
                     manual_inspect::check(cx, expr, m_arg, name, span, self.msrv);
-                    crate::useless_conversion::check_function_application(cx, expr, recv, m_arg);
-                },
-                (sym::map_break | sym::map_continue, [m_arg]) => {
-                    crate::useless_conversion::check_function_application(cx, expr, recv, m_arg);
                 },
                 (sym::map_or, [def, map]) => {
                     option_map_or_none::check(cx, expr, recv, def, map);
@@ -5546,7 +5553,7 @@ impl Methods {
         // Handle method calls whose receiver and arguments may come from expansion
         if let ExprKind::MethodCall(path, recv, args, _call_span) = expr.kind {
             match (path.ident.name, args) {
-                (sym::expect, [_]) if !matches!(method_call(recv), Some((sym::ok | sym::err, _, [], _, _))) => {
+                (sym::expect, [_]) => {
                     unwrap_expect_used::check(
                         cx,
                         expr,
diff --git a/src/tools/clippy/clippy_lints/src/methods/or_fun_call.rs b/src/tools/clippy/clippy_lints/src/methods/or_fun_call.rs
index 6ce7dd3d4d0..04f0e3c0479 100644
--- a/src/tools/clippy/clippy_lints/src/methods/or_fun_call.rs
+++ b/src/tools/clippy/clippy_lints/src/methods/or_fun_call.rs
@@ -242,15 +242,23 @@ pub(super) fn check<'tcx>(
         let inner_arg = peel_blocks(arg);
         for_each_expr(cx, inner_arg, |ex| {
             let is_top_most_expr = ex.hir_id == inner_arg.hir_id;
-            if let hir::ExprKind::Call(fun, fun_args) = ex.kind {
-                let fun_span = if fun_args.is_empty() && is_top_most_expr {
-                    Some(fun.span)
-                } else {
-                    None
-                };
-                if check_or_fn_call(cx, name, method_span, receiver, arg, Some(lambda), expr.span, fun_span) {
-                    return ControlFlow::Break(());
-                }
+            match ex.kind {
+                hir::ExprKind::Call(fun, fun_args) => {
+                    let fun_span = if fun_args.is_empty() && is_top_most_expr {
+                        Some(fun.span)
+                    } else {
+                        None
+                    };
+                    if check_or_fn_call(cx, name, method_span, receiver, arg, Some(lambda), expr.span, fun_span) {
+                        return ControlFlow::Break(());
+                    }
+                },
+                hir::ExprKind::MethodCall(..) => {
+                    if check_or_fn_call(cx, name, method_span, receiver, arg, Some(lambda), expr.span, None) {
+                        return ControlFlow::Break(());
+                    }
+                },
+                _ => {},
             }
             ControlFlow::Continue(())
         });
diff --git a/src/tools/clippy/clippy_lints/src/missing_fields_in_debug.rs b/src/tools/clippy/clippy_lints/src/missing_fields_in_debug.rs
index 760ecf07589..18e2b384a46 100644
--- a/src/tools/clippy/clippy_lints/src/missing_fields_in_debug.rs
+++ b/src/tools/clippy/clippy_lints/src/missing_fields_in_debug.rs
@@ -7,9 +7,7 @@ use clippy_utils::{is_path_lang_item, sym};
 use rustc_ast::LitKind;
 use rustc_data_structures::fx::FxHashSet;
 use rustc_hir::def::{DefKind, Res};
-use rustc_hir::{
-    Block, Expr, ExprKind, Impl, Item, ItemKind, LangItem, Node, QPath, TyKind, VariantData,
-};
+use rustc_hir::{Block, Expr, ExprKind, Impl, Item, ItemKind, LangItem, Node, QPath, TyKind, VariantData};
 use rustc_lint::{LateContext, LateLintPass};
 use rustc_middle::ty::{Ty, TypeckResults};
 use rustc_session::declare_lint_pass;
diff --git a/src/tools/clippy/clippy_lints/src/missing_inline.rs b/src/tools/clippy/clippy_lints/src/missing_inline.rs
index c4a3d10299b..5a5025973b5 100644
--- a/src/tools/clippy/clippy_lints/src/missing_inline.rs
+++ b/src/tools/clippy/clippy_lints/src/missing_inline.rs
@@ -1,7 +1,7 @@
 use clippy_utils::diagnostics::span_lint;
 use rustc_attr_data_structures::{AttributeKind, find_attr};
-use rustc_hir as hir;
-use rustc_hir::Attribute;
+use rustc_hir::def_id::DefId;
+use rustc_hir::{self as hir, Attribute};
 use rustc_lint::{LateContext, LateLintPass, LintContext};
 use rustc_middle::ty::AssocItemContainer;
 use rustc_session::declare_lint_pass;
@@ -97,11 +97,23 @@ impl<'tcx> LateLintPass<'tcx> for MissingInline {
         }
         match it.kind {
             hir::ItemKind::Fn { .. } => {
+                if fn_is_externally_exported(cx, it.owner_id.to_def_id()) {
+                    return;
+                }
+
                 let desc = "a function";
                 let attrs = cx.tcx.hir_attrs(it.hir_id());
                 check_missing_inline_attrs(cx, attrs, it.span, desc);
             },
-            hir::ItemKind::Trait(ref _constness, ref _is_auto, ref _unsafe, _ident, _generics, _bounds, trait_items) => {
+            hir::ItemKind::Trait(
+                ref _constness,
+                ref _is_auto,
+                ref _unsafe,
+                _ident,
+                _generics,
+                _bounds,
+                trait_items,
+            ) => {
                 // note: we need to check if the trait is exported so we can't use
                 // `LateLintPass::check_trait_item` here.
                 for &tit in trait_items {
@@ -173,3 +185,10 @@ impl<'tcx> LateLintPass<'tcx> for MissingInline {
         check_missing_inline_attrs(cx, attrs, impl_item.span, desc);
     }
 }
+
+/// Checks if this function is externally exported, where #[inline] wouldn't have the desired effect
+/// and a rustc warning would be triggered, see #15301
+fn fn_is_externally_exported(cx: &LateContext<'_>, def_id: DefId) -> bool {
+    let attrs = cx.tcx.codegen_fn_attrs(def_id);
+    attrs.contains_extern_indicator()
+}
diff --git a/src/tools/clippy/clippy_lints/src/missing_trait_methods.rs b/src/tools/clippy/clippy_lints/src/missing_trait_methods.rs
index fa61d0fa11a..399bf4e1806 100644
--- a/src/tools/clippy/clippy_lints/src/missing_trait_methods.rs
+++ b/src/tools/clippy/clippy_lints/src/missing_trait_methods.rs
@@ -66,7 +66,9 @@ impl<'tcx> LateLintPass<'tcx> for MissingTraitMethods {
             }) = item.kind
             && let Some(trait_id) = trait_ref.trait_def_id()
         {
-            let trait_item_ids: DefIdSet = cx.tcx.associated_items(item.owner_id)
+            let trait_item_ids: DefIdSet = cx
+                .tcx
+                .associated_items(item.owner_id)
                 .in_definition_order()
                 .filter_map(|assoc_item| assoc_item.trait_item_def_id)
                 .collect();
diff --git a/src/tools/clippy/clippy_lints/src/mixed_read_write_in_expression.rs b/src/tools/clippy/clippy_lints/src/mixed_read_write_in_expression.rs
index d9f4fb271fb..a489c0a4a5a 100644
--- a/src/tools/clippy/clippy_lints/src/mixed_read_write_in_expression.rs
+++ b/src/tools/clippy/clippy_lints/src/mixed_read_write_in_expression.rs
@@ -171,14 +171,11 @@ impl<'tcx> Visitor<'tcx> for DivergenceVisitor<'_, 'tcx> {
             ExprKind::Continue(_) | ExprKind::Break(_, _) | ExprKind::Ret(_) => self.report_diverging_sub_expr(e),
             ExprKind::Call(func, _) => {
                 let typ = self.cx.typeck_results().expr_ty(func);
-                match typ.kind() {
-                    ty::FnDef(..) | ty::FnPtr(..) => {
-                        let sig = typ.fn_sig(self.cx.tcx);
-                        if self.cx.tcx.instantiate_bound_regions_with_erased(sig).output().kind() == &ty::Never {
-                            self.report_diverging_sub_expr(e);
-                        }
-                    },
-                    _ => {},
+                if typ.is_fn() {
+                    let sig = typ.fn_sig(self.cx.tcx);
+                    if self.cx.tcx.instantiate_bound_regions_with_erased(sig).output().kind() == &ty::Never {
+                        self.report_diverging_sub_expr(e);
+                    }
                 }
             },
             ExprKind::MethodCall(..) => {
diff --git a/src/tools/clippy/clippy_lints/src/mut_reference.rs b/src/tools/clippy/clippy_lints/src/mut_reference.rs
index 2f1ab3d2652..31f51b45754 100644
--- a/src/tools/clippy/clippy_lints/src/mut_reference.rs
+++ b/src/tools/clippy/clippy_lints/src/mut_reference.rs
@@ -79,7 +79,7 @@ fn check_arguments<'tcx>(
     name: &str,
     fn_kind: &str,
 ) {
-    if let ty::FnDef(..) | ty::FnPtr(..) = type_definition.kind() {
+    if type_definition.is_fn() {
         let parameters = type_definition.fn_sig(cx.tcx).skip_binder().inputs();
         for (argument, parameter) in iter::zip(arguments, parameters) {
             if let ty::Ref(_, _, Mutability::Not) | ty::RawPtr(_, Mutability::Not) = parameter.kind()
diff --git a/src/tools/clippy/clippy_lints/src/needless_for_each.rs b/src/tools/clippy/clippy_lints/src/needless_for_each.rs
index 6a7c8436bad..a67545e419c 100644
--- a/src/tools/clippy/clippy_lints/src/needless_for_each.rs
+++ b/src/tools/clippy/clippy_lints/src/needless_for_each.rs
@@ -6,7 +6,7 @@ use rustc_session::declare_lint_pass;
 use rustc_span::Span;
 
 use clippy_utils::diagnostics::span_lint_and_then;
-use clippy_utils::source::snippet_with_applicability;
+use clippy_utils::source::{snippet_with_applicability, snippet_with_context};
 use clippy_utils::ty::has_iter_method;
 use clippy_utils::{is_trait_method, sym};
 
@@ -101,18 +101,23 @@ impl<'tcx> LateLintPass<'tcx> for NeedlessForEach {
 
             let body_param_sugg = snippet_with_applicability(cx, body.params[0].pat.span, "..", &mut applicability);
             let for_each_rev_sugg = snippet_with_applicability(cx, for_each_recv.span, "..", &mut applicability);
-            let body_value_sugg = snippet_with_applicability(cx, body.value.span, "..", &mut applicability);
+            let (body_value_sugg, is_macro_call) =
+                snippet_with_context(cx, body.value.span, for_each_recv.span.ctxt(), "..", &mut applicability);
 
             let sugg = format!(
                 "for {} in {} {}",
                 body_param_sugg,
                 for_each_rev_sugg,
-                match body.value.kind {
-                    ExprKind::Block(block, _) if is_let_desugar(block) => {
-                        format!("{{ {body_value_sugg} }}")
-                    },
-                    ExprKind::Block(_, _) => body_value_sugg.to_string(),
-                    _ => format!("{{ {body_value_sugg}; }}"),
+                if is_macro_call {
+                    format!("{{ {body_value_sugg}; }}")
+                } else {
+                    match body.value.kind {
+                        ExprKind::Block(block, _) if is_let_desugar(block) => {
+                            format!("{{ {body_value_sugg} }}")
+                        },
+                        ExprKind::Block(_, _) => body_value_sugg.to_string(),
+                        _ => format!("{{ {body_value_sugg}; }}"),
+                    }
                 }
             );
 
diff --git a/src/tools/clippy/clippy_lints/src/needless_pass_by_value.rs b/src/tools/clippy/clippy_lints/src/needless_pass_by_value.rs
index c97ecce75b4..7b057998063 100644
--- a/src/tools/clippy/clippy_lints/src/needless_pass_by_value.rs
+++ b/src/tools/clippy/clippy_lints/src/needless_pass_by_value.rs
@@ -246,8 +246,10 @@ impl<'tcx> LateLintPass<'tcx> for NeedlessPassByValue {
                         for (span, suggestion) in clone_spans {
                             diag.span_suggestion(
                                 span,
-                                span.get_source_text(cx)
-                                    .map_or("change the call to".to_owned(), |src| format!("change `{src}` to")),
+                                span.get_source_text(cx).map_or_else(
+                                    || "change the call to".to_owned(),
+                                    |src| format!("change `{src}` to"),
+                                ),
                                 suggestion,
                                 Applicability::Unspecified,
                             );
@@ -275,8 +277,10 @@ impl<'tcx> LateLintPass<'tcx> for NeedlessPassByValue {
                         for (span, suggestion) in clone_spans {
                             diag.span_suggestion(
                                 span,
-                                span.get_source_text(cx)
-                                    .map_or("change the call to".to_owned(), |src| format!("change `{src}` to")),
+                                span.get_source_text(cx).map_or_else(
+                                    || "change the call to".to_owned(),
+                                    |src| format!("change `{src}` to"),
+                                ),
                                 suggestion,
                                 Applicability::Unspecified,
                             );
@@ -308,9 +312,7 @@ impl<'tcx> LateLintPass<'tcx> for NeedlessPassByValue {
 /// Functions marked with these attributes must have the exact signature.
 pub(crate) fn requires_exact_signature(attrs: &[Attribute]) -> bool {
     attrs.iter().any(|attr| {
-        [sym::proc_macro, sym::proc_macro_attribute, sym::proc_macro_derive]
-            .iter()
-            .any(|&allow| attr.has_name(allow))
+        attr.is_proc_macro_attr()
     })
 }
 
diff --git a/src/tools/clippy/clippy_lints/src/new_without_default.rs b/src/tools/clippy/clippy_lints/src/new_without_default.rs
index 3b86f1d1f59..b598a390005 100644
--- a/src/tools/clippy/clippy_lints/src/new_without_default.rs
+++ b/src/tools/clippy/clippy_lints/src/new_without_default.rs
@@ -65,11 +65,16 @@ impl<'tcx> LateLintPass<'tcx> for NewWithoutDefault {
             ..
         }) = item.kind
         {
-            for assoc_item in cx.tcx.associated_items(item.owner_id.def_id)
+            for assoc_item in cx
+                .tcx
+                .associated_items(item.owner_id.def_id)
                 .filter_by_name_unhygienic(sym::new)
             {
                 if let AssocKind::Fn { has_self: false, .. } = assoc_item.kind {
-                    let impl_item = cx.tcx.hir_node_by_def_id(assoc_item.def_id.expect_local()).expect_impl_item();
+                    let impl_item = cx
+                        .tcx
+                        .hir_node_by_def_id(assoc_item.def_id.expect_local())
+                        .expect_impl_item();
                     if impl_item.span.in_external_macro(cx.sess().source_map()) {
                         return;
                     }
diff --git a/src/tools/clippy/clippy_lints/src/non_copy_const.rs b/src/tools/clippy/clippy_lints/src/non_copy_const.rs
index 5f10e1968f1..388c029c9ef 100644
--- a/src/tools/clippy/clippy_lints/src/non_copy_const.rs
+++ b/src/tools/clippy/clippy_lints/src/non_copy_const.rs
@@ -338,7 +338,7 @@ impl<'tcx> NonCopyConst<'tcx> {
         tcx: TyCtxt<'tcx>,
         typing_env: TypingEnv<'tcx>,
         ty: Ty<'tcx>,
-        val: ConstValue<'tcx>,
+        val: ConstValue,
     ) -> Result<bool, ()> {
         let ty = tcx.try_normalize_erasing_regions(typing_env, ty).unwrap_or(ty);
         match self.is_ty_freeze(tcx, typing_env, ty) {
@@ -477,7 +477,7 @@ impl<'tcx> NonCopyConst<'tcx> {
         typing_env: TypingEnv<'tcx>,
         typeck: &'tcx TypeckResults<'tcx>,
         mut src_expr: &'tcx Expr<'tcx>,
-        mut val: ConstValue<'tcx>,
+        mut val: ConstValue,
     ) -> Result<Option<BorrowSource<'tcx>>, ()> {
         let mut parents = tcx.hir_parent_iter(src_expr.hir_id);
         let mut ty = typeck.expr_ty(src_expr);
diff --git a/src/tools/clippy/clippy_lints/src/operators/arithmetic_side_effects.rs b/src/tools/clippy/clippy_lints/src/operators/arithmetic_side_effects.rs
index a78a342d4fe..466beb04b07 100644
--- a/src/tools/clippy/clippy_lints/src/operators/arithmetic_side_effects.rs
+++ b/src/tools/clippy/clippy_lints/src/operators/arithmetic_side_effects.rs
@@ -3,12 +3,11 @@ use clippy_config::Conf;
 use clippy_utils::consts::{ConstEvalCtxt, Constant};
 use clippy_utils::diagnostics::span_lint;
 use clippy_utils::ty::is_type_diagnostic_item;
-use clippy_utils::{expr_or_init, is_from_proc_macro, is_lint_allowed, peel_hir_expr_refs, peel_hir_expr_unary};
+use clippy_utils::{expr_or_init, is_from_proc_macro, is_lint_allowed, peel_hir_expr_refs, peel_hir_expr_unary, sym};
 use rustc_data_structures::fx::{FxHashMap, FxHashSet};
 use rustc_lint::{LateContext, LateLintPass};
 use rustc_middle::ty::{self, Ty};
 use rustc_session::impl_lint_pass;
-use rustc_span::symbol::sym;
 use rustc_span::{Span, Symbol};
 use {rustc_ast as ast, rustc_hir as hir};
 
@@ -89,6 +88,18 @@ impl ArithmeticSideEffects {
         self.allowed_unary.contains(ty_string_elem)
     }
 
+    fn is_non_zero_u(cx: &LateContext<'_>, ty: Ty<'_>) -> bool {
+        if let ty::Adt(adt, substs) = ty.kind()
+            && cx.tcx.is_diagnostic_item(sym::NonZero, adt.did())
+            && let int_type = substs.type_at(0)
+            && matches!(int_type.kind(), ty::Uint(_))
+        {
+            true
+        } else {
+            false
+        }
+    }
+
     /// Verifies built-in types that have specific allowed operations
     fn has_specific_allowed_type_and_operation<'tcx>(
         cx: &LateContext<'tcx>,
@@ -97,33 +108,12 @@ impl ArithmeticSideEffects {
         rhs_ty: Ty<'tcx>,
     ) -> bool {
         let is_div_or_rem = matches!(op, hir::BinOpKind::Div | hir::BinOpKind::Rem);
-        let is_non_zero_u = |cx: &LateContext<'tcx>, ty: Ty<'tcx>| {
-            let tcx = cx.tcx;
-
-            let ty::Adt(adt, substs) = ty.kind() else { return false };
-
-            if !tcx.is_diagnostic_item(sym::NonZero, adt.did()) {
-                return false;
-            }
-
-            let int_type = substs.type_at(0);
-            let unsigned_int_types = [
-                tcx.types.u8,
-                tcx.types.u16,
-                tcx.types.u32,
-                tcx.types.u64,
-                tcx.types.u128,
-                tcx.types.usize,
-            ];
-
-            unsigned_int_types.contains(&int_type)
-        };
         let is_sat_or_wrap = |ty: Ty<'_>| {
             is_type_diagnostic_item(cx, ty, sym::Saturating) || is_type_diagnostic_item(cx, ty, sym::Wrapping)
         };
 
         // If the RHS is `NonZero<u*>`, then division or module by zero will never occur.
-        if is_non_zero_u(cx, rhs_ty) && is_div_or_rem {
+        if Self::is_non_zero_u(cx, rhs_ty) && is_div_or_rem {
             return true;
         }
 
@@ -219,6 +209,18 @@ impl ArithmeticSideEffects {
         let (mut actual_rhs, rhs_ref_counter) = peel_hir_expr_refs(rhs);
         actual_lhs = expr_or_init(cx, actual_lhs);
         actual_rhs = expr_or_init(cx, actual_rhs);
+
+        // `NonZeroU*.get() - 1`, will never overflow
+        if let hir::BinOpKind::Sub = op
+            && let hir::ExprKind::MethodCall(method, receiver, [], _) = actual_lhs.kind
+            && method.ident.name == sym::get
+            && let receiver_ty = cx.typeck_results().expr_ty(receiver).peel_refs()
+            && Self::is_non_zero_u(cx, receiver_ty)
+            && let Some(1) = Self::literal_integer(cx, actual_rhs)
+        {
+            return;
+        }
+
         let lhs_ty = cx.typeck_results().expr_ty(actual_lhs).peel_refs();
         let rhs_ty = cx.typeck_results().expr_ty_adjusted(actual_rhs).peel_refs();
         if self.has_allowed_binary(lhs_ty, rhs_ty) {
@@ -227,6 +229,7 @@ impl ArithmeticSideEffects {
         if Self::has_specific_allowed_type_and_operation(cx, lhs_ty, op, rhs_ty) {
             return;
         }
+
         let has_valid_op = if Self::is_integral(lhs_ty) && Self::is_integral(rhs_ty) {
             if let hir::BinOpKind::Shl | hir::BinOpKind::Shr = op {
                 // At least for integers, shifts are already handled by the CTFE
diff --git a/src/tools/clippy/clippy_lints/src/operators/manual_is_multiple_of.rs b/src/tools/clippy/clippy_lints/src/operators/manual_is_multiple_of.rs
index 821178a4315..55bb78cfce5 100644
--- a/src/tools/clippy/clippy_lints/src/operators/manual_is_multiple_of.rs
+++ b/src/tools/clippy/clippy_lints/src/operators/manual_is_multiple_of.rs
@@ -2,11 +2,12 @@ use clippy_utils::consts::is_zero_integer_const;
 use clippy_utils::diagnostics::span_lint_and_sugg;
 use clippy_utils::msrvs::{self, Msrv};
 use clippy_utils::sugg::Sugg;
+use clippy_utils::ty::expr_type_is_certain;
 use rustc_ast::BinOpKind;
 use rustc_errors::Applicability;
 use rustc_hir::{Expr, ExprKind};
 use rustc_lint::LateContext;
-use rustc_middle::ty;
+use rustc_middle::ty::{self, Ty};
 
 use super::MANUAL_IS_MULTIPLE_OF;
 
@@ -22,9 +23,21 @@ pub(super) fn check<'tcx>(
         && let Some(operand) = uint_compare_to_zero(cx, op, lhs, rhs)
         && let ExprKind::Binary(operand_op, operand_left, operand_right) = operand.kind
         && operand_op.node == BinOpKind::Rem
+        && matches!(
+            cx.typeck_results().expr_ty_adjusted(operand_left).peel_refs().kind(),
+            ty::Uint(_)
+        )
+        && matches!(
+            cx.typeck_results().expr_ty_adjusted(operand_right).peel_refs().kind(),
+            ty::Uint(_)
+        )
+        && expr_type_is_certain(cx, operand_left)
     {
         let mut app = Applicability::MachineApplicable;
-        let divisor = Sugg::hir_with_applicability(cx, operand_right, "_", &mut app);
+        let divisor = deref_sugg(
+            Sugg::hir_with_applicability(cx, operand_right, "_", &mut app),
+            cx.typeck_results().expr_ty_adjusted(operand_right),
+        );
         span_lint_and_sugg(
             cx,
             MANUAL_IS_MULTIPLE_OF,
@@ -64,3 +77,11 @@ fn uint_compare_to_zero<'tcx>(
 
     matches!(cx.typeck_results().expr_ty_adjusted(operand).kind(), ty::Uint(_)).then_some(operand)
 }
+
+fn deref_sugg<'a>(sugg: Sugg<'a>, ty: Ty<'_>) -> Sugg<'a> {
+    if let ty::Ref(_, target_ty, _) = ty.kind() {
+        deref_sugg(sugg.deref(), *target_ty)
+    } else {
+        sugg
+    }
+}
diff --git a/src/tools/clippy/clippy_lints/src/pattern_type_mismatch.rs b/src/tools/clippy/clippy_lints/src/pattern_type_mismatch.rs
index 19d9acfc930..4197680dd04 100644
--- a/src/tools/clippy/clippy_lints/src/pattern_type_mismatch.rs
+++ b/src/tools/clippy/clippy_lints/src/pattern_type_mismatch.rs
@@ -96,6 +96,12 @@ impl<'tcx> LateLintPass<'tcx> for PatternTypeMismatch {
 
     fn check_expr(&mut self, cx: &LateContext<'tcx>, expr: &'tcx Expr<'_>) {
         if let ExprKind::Match(_, arms, _) = expr.kind {
+            // if the match is generated by an external macro, the writer does not control
+            // how the scrutinee (`match &scrutiny { ... }`) is matched
+            if expr.span.in_external_macro(cx.sess().source_map()) {
+                return;
+            }
+
             for arm in arms {
                 let pat = &arm.pat;
                 if apply_lint(cx, pat, DerefPossible::Possible) {
diff --git a/src/tools/clippy/clippy_lints/src/ptr.rs b/src/tools/clippy/clippy_lints/src/ptr.rs
index 94cdcf00054..b3058c51afd 100644
--- a/src/tools/clippy/clippy_lints/src/ptr.rs
+++ b/src/tools/clippy/clippy_lints/src/ptr.rs
@@ -584,7 +584,13 @@ fn check_ptr_arg_usage<'tcx>(cx: &LateContext<'tcx>, body: &Body<'tcx>, args: &[
                 Some((Node::Stmt(_), _)) => (),
                 Some((Node::LetStmt(l), _)) => {
                     // Only trace simple bindings. e.g `let x = y;`
-                    if let PatKind::Binding(BindingMode::NONE, id, _, None) = l.pat.kind {
+                    if let PatKind::Binding(BindingMode::NONE, id, ident, None) = l.pat.kind
+                        // Let's not lint for the current parameter. The user may still intend to mutate
+                        // (or, if not mutate, then perhaps call a method that's not otherwise available
+                        // for) the referenced value behind the parameter through this local let binding
+                        // with the underscore being only temporary.
+                        && !ident.name.as_str().starts_with('_')
+                    {
                         self.bindings.insert(id, args_idx);
                     } else {
                         set_skip_flag();
@@ -650,7 +656,14 @@ fn check_ptr_arg_usage<'tcx>(cx: &LateContext<'tcx>, body: &Body<'tcx>, args: &[
             .filter_map(|(i, arg)| {
                 let param = &body.params[arg.idx];
                 match param.pat.kind {
-                    PatKind::Binding(BindingMode::NONE, id, _, None) if !is_lint_allowed(cx, PTR_ARG, param.hir_id) => {
+                    PatKind::Binding(BindingMode::NONE, id, ident, None)
+                        if !is_lint_allowed(cx, PTR_ARG, param.hir_id)
+                        // Let's not lint for the current parameter. The user may still intend to mutate
+                        // (or, if not mutate, then perhaps call a method that's not otherwise available
+                        // for) the referenced value behind the parameter with the underscore being only
+                        // temporary.
+                        && !ident.name.as_str().starts_with('_') =>
+                    {
                         Some((id, i))
                     },
                     _ => {
diff --git a/src/tools/clippy/clippy_lints/src/ranges.rs b/src/tools/clippy/clippy_lints/src/ranges.rs
index d292ed86ea4..9281678b3d8 100644
--- a/src/tools/clippy/clippy_lints/src/ranges.rs
+++ b/src/tools/clippy/clippy_lints/src/ranges.rs
@@ -4,15 +4,20 @@ use clippy_utils::diagnostics::{span_lint, span_lint_and_sugg, span_lint_and_the
 use clippy_utils::msrvs::{self, Msrv};
 use clippy_utils::source::{SpanRangeExt, snippet, snippet_with_applicability};
 use clippy_utils::sugg::Sugg;
-use clippy_utils::{get_parent_expr, higher, is_in_const_context, is_integer_const, path_to_local};
+use clippy_utils::ty::implements_trait;
+use clippy_utils::{
+    expr_use_ctxt, fn_def_id, get_parent_expr, higher, is_in_const_context, is_integer_const, is_path_lang_item,
+    path_to_local,
+};
+use rustc_ast::Mutability;
 use rustc_ast::ast::RangeLimits;
 use rustc_errors::Applicability;
-use rustc_hir::{BinOpKind, Expr, ExprKind, HirId};
-use rustc_lint::{LateContext, LateLintPass};
-use rustc_middle::ty;
+use rustc_hir::{BinOpKind, Expr, ExprKind, HirId, LangItem, Node};
+use rustc_lint::{LateContext, LateLintPass, Lint};
+use rustc_middle::ty::{self, ClauseKind, GenericArgKind, PredicatePolarity, Ty};
 use rustc_session::impl_lint_pass;
-use rustc_span::Span;
 use rustc_span::source_map::Spanned;
+use rustc_span::{Span, sym};
 use std::cmp::Ordering;
 
 declare_clippy_lint! {
@@ -24,6 +29,12 @@ declare_clippy_lint! {
     /// The code is more readable with an inclusive range
     /// like `x..=y`.
     ///
+    /// ### Limitations
+    /// The lint is conservative and will trigger only when switching
+    /// from an exclusive to an inclusive range is provably safe from
+    /// a typing point of view. This corresponds to situations where
+    /// the range is used as an iterator, or for indexing.
+    ///
     /// ### Known problems
     /// Will add unnecessary pair of parentheses when the
     /// expression is not wrapped in a pair but starts with an opening parenthesis
@@ -34,11 +45,6 @@ declare_clippy_lint! {
     /// exclusive ranges, because they essentially add an extra branch that
     /// LLVM may fail to hoist out of the loop.
     ///
-    /// This will cause a warning that cannot be fixed if the consumer of the
-    /// range only accepts a specific range type, instead of the generic
-    /// `RangeBounds` trait
-    /// ([#3307](https://github.com/rust-lang/rust-clippy/issues/3307)).
-    ///
     /// ### Example
     /// ```no_run
     /// # let x = 0;
@@ -71,11 +77,11 @@ declare_clippy_lint! {
     /// The code is more readable with an exclusive range
     /// like `x..y`.
     ///
-    /// ### Known problems
-    /// This will cause a warning that cannot be fixed if
-    /// the consumer of the range only accepts a specific range type, instead of
-    /// the generic `RangeBounds` trait
-    /// ([#3307](https://github.com/rust-lang/rust-clippy/issues/3307)).
+    /// ### Limitations
+    /// The lint is conservative and will trigger only when switching
+    /// from an inclusive to an exclusive range is provably safe from
+    /// a typing point of view. This corresponds to situations where
+    /// the range is used as an iterator, or for indexing.
     ///
     /// ### Example
     /// ```no_run
@@ -344,70 +350,188 @@ fn check_range_bounds<'a, 'tcx>(cx: &'a LateContext<'tcx>, ex: &'a Expr<'_>) ->
     None
 }
 
-// exclusive range plus one: `x..(y+1)`
-fn check_exclusive_range_plus_one(cx: &LateContext<'_>, expr: &Expr<'_>) {
-    if expr.span.can_be_used_for_suggestions()
-        && let Some(higher::Range {
-            start,
-            end: Some(end),
-            limits: RangeLimits::HalfOpen,
-        }) = higher::Range::hir(expr)
-        && let Some(y) = y_plus_one(cx, end)
+/// Check whether `expr` could switch range types without breaking the typing requirements. This is
+/// generally the case when `expr` is used as an iterator for example, or as a slice or `&str`
+/// index.
+///
+/// FIXME: Note that the current implementation may still return false positives. A proper fix would
+/// check that the obligations are still satisfied after switching the range type.
+fn can_switch_ranges<'tcx>(
+    cx: &LateContext<'tcx>,
+    expr: &'tcx Expr<'_>,
+    original: RangeLimits,
+    inner_ty: Ty<'tcx>,
+) -> bool {
+    let use_ctxt = expr_use_ctxt(cx, expr);
+    let (Node::Expr(parent_expr), false) = (use_ctxt.node, use_ctxt.is_ty_unified) else {
+        return false;
+    };
+
+    // Check if `expr` is the argument of a compiler-generated `IntoIter::into_iter(expr)`
+    if let ExprKind::Call(func, [arg]) = parent_expr.kind
+        && arg.hir_id == use_ctxt.child_id
+        && is_path_lang_item(cx, func, LangItem::IntoIterIntoIter)
     {
-        let span = expr.span;
-        span_lint_and_then(
-            cx,
-            RANGE_PLUS_ONE,
-            span,
-            "an inclusive range would be more readable",
-            |diag| {
-                let start = start.map_or(String::new(), |x| Sugg::hir(cx, x, "x").maybe_paren().to_string());
-                let end = Sugg::hir(cx, y, "y").maybe_paren();
-                match span.with_source_text(cx, |src| src.starts_with('(') && src.ends_with(')')) {
-                    Some(true) => {
-                        diag.span_suggestion(span, "use", format!("({start}..={end})"), Applicability::MaybeIncorrect);
-                    },
-                    Some(false) => {
-                        diag.span_suggestion(
-                            span,
-                            "use",
-                            format!("{start}..={end}"),
-                            Applicability::MachineApplicable, // snippet
-                        );
-                    },
-                    None => {},
-                }
-            },
-        );
+        return true;
+    }
+
+    // Check if `expr` is used as the receiver of a method of the `Iterator`, `IntoIterator`,
+    // or `RangeBounds` traits.
+    if let ExprKind::MethodCall(_, receiver, _, _) = parent_expr.kind
+        && receiver.hir_id == use_ctxt.child_id
+        && let Some(method_did) = cx.typeck_results().type_dependent_def_id(parent_expr.hir_id)
+        && let Some(trait_did) = cx.tcx.trait_of_item(method_did)
+        && matches!(
+            cx.tcx.get_diagnostic_name(trait_did),
+            Some(sym::Iterator | sym::IntoIterator | sym::RangeBounds)
+        )
+    {
+        return true;
+    }
+
+    // Check if `expr` is an argument of a call which requires an `Iterator`, `IntoIterator`,
+    // or `RangeBounds` trait.
+    if let ExprKind::Call(_, args) | ExprKind::MethodCall(_, _, args, _) = parent_expr.kind
+        && let Some(id) = fn_def_id(cx, parent_expr)
+        && let Some(arg_idx) = args.iter().position(|e| e.hir_id == use_ctxt.child_id)
+    {
+        let input_idx = if matches!(parent_expr.kind, ExprKind::MethodCall(..)) {
+            arg_idx + 1
+        } else {
+            arg_idx
+        };
+        let inputs = cx
+            .tcx
+            .liberate_late_bound_regions(id, cx.tcx.fn_sig(id).instantiate_identity())
+            .inputs();
+        let expr_ty = inputs[input_idx];
+        // Check that the `expr` type is present only once, otherwise modifying just one of them might be
+        // risky if they are referenced using the same generic type for example.
+        if inputs.iter().enumerate().all(|(n, ty)|
+                                         n == input_idx
+                                         || !ty.walk().any(|arg| matches!(arg.kind(),
+                                                                          GenericArgKind::Type(ty) if ty == expr_ty)))
+            // Look for a clause requiring `Iterator`, `IntoIterator`, or `RangeBounds`, and resolving to `expr_type`.
+            && cx
+                .tcx
+                .param_env(id)
+                .caller_bounds()
+                .into_iter()
+                .any(|p| {
+                    if let ClauseKind::Trait(t) = p.kind().skip_binder()
+                        && t.polarity == PredicatePolarity::Positive
+                        && matches!(
+                            cx.tcx.get_diagnostic_name(t.trait_ref.def_id),
+                            Some(sym::Iterator | sym::IntoIterator | sym::RangeBounds)
+                        )
+                    {
+                        t.self_ty() == expr_ty
+                    } else {
+                        false
+                    }
+                })
+        {
+            return true;
+        }
+    }
+
+    // Check if `expr` is used for indexing, and if the switched range type could be used
+    // as well.
+    if let ExprKind::Index(outer_expr, index, _) = parent_expr.kind
+        && index.hir_id == expr.hir_id
+        // Build the switched range type (for example `RangeInclusive<usize>`).
+        && let Some(switched_range_def_id) = match original {
+            RangeLimits::HalfOpen => cx.tcx.lang_items().range_inclusive_struct(),
+            RangeLimits::Closed => cx.tcx.lang_items().range_struct(),
+        }
+        && let switched_range_ty = cx
+            .tcx
+            .type_of(switched_range_def_id)
+            .instantiate(cx.tcx, &[inner_ty.into()])
+        // Check that the switched range type can be used for indexing the original expression
+        // through the `Index` or `IndexMut` trait.
+        && let ty::Ref(_, outer_ty, mutability) = cx.typeck_results().expr_ty_adjusted(outer_expr).kind()
+        && let Some(index_def_id) = match mutability {
+            Mutability::Not => cx.tcx.lang_items().index_trait(),
+            Mutability::Mut => cx.tcx.lang_items().index_mut_trait(),
+        }
+       && implements_trait(cx, *outer_ty, index_def_id, &[switched_range_ty.into()])
+    // We could also check that the associated item of the `index_def_id` trait with the switched range type
+    // return the same type, but it is reasonable to expect so. We can't check that the result is identical
+    // in both `Index<Range<…>>` and `Index<RangeInclusive<…>>` anyway.
+    {
+        return true;
     }
+
+    false
+}
+
+// exclusive range plus one: `x..(y+1)`
+fn check_exclusive_range_plus_one<'tcx>(cx: &LateContext<'tcx>, expr: &'tcx Expr<'_>) {
+    check_range_switch(
+        cx,
+        expr,
+        RangeLimits::HalfOpen,
+        y_plus_one,
+        RANGE_PLUS_ONE,
+        "an inclusive range would be more readable",
+        "..=",
+    );
 }
 
 // inclusive range minus one: `x..=(y-1)`
-fn check_inclusive_range_minus_one(cx: &LateContext<'_>, expr: &Expr<'_>) {
+fn check_inclusive_range_minus_one<'tcx>(cx: &LateContext<'tcx>, expr: &'tcx Expr<'_>) {
+    check_range_switch(
+        cx,
+        expr,
+        RangeLimits::Closed,
+        y_minus_one,
+        RANGE_MINUS_ONE,
+        "an exclusive range would be more readable",
+        "..",
+    );
+}
+
+/// Check for a `kind` of range in `expr`, check for `predicate` on the end,
+/// and emit the `lint` with `msg` and the `operator`.
+fn check_range_switch<'tcx>(
+    cx: &LateContext<'tcx>,
+    expr: &'tcx Expr<'_>,
+    kind: RangeLimits,
+    predicate: impl for<'hir> FnOnce(&LateContext<'_>, &Expr<'hir>) -> Option<&'hir Expr<'hir>>,
+    lint: &'static Lint,
+    msg: &'static str,
+    operator: &str,
+) {
     if expr.span.can_be_used_for_suggestions()
         && let Some(higher::Range {
             start,
             end: Some(end),
-            limits: RangeLimits::Closed,
+            limits,
         }) = higher::Range::hir(expr)
-        && let Some(y) = y_minus_one(cx, end)
+        && limits == kind
+        && let Some(y) = predicate(cx, end)
+        && can_switch_ranges(cx, expr, kind, cx.typeck_results().expr_ty(y))
     {
-        span_lint_and_then(
-            cx,
-            RANGE_MINUS_ONE,
-            expr.span,
-            "an exclusive range would be more readable",
-            |diag| {
-                let start = start.map_or(String::new(), |x| Sugg::hir(cx, x, "x").maybe_paren().to_string());
-                let end = Sugg::hir(cx, y, "y").maybe_paren();
-                diag.span_suggestion(
-                    expr.span,
-                    "use",
-                    format!("{start}..{end}"),
-                    Applicability::MachineApplicable, // snippet
-                );
-            },
-        );
+        let span = expr.span;
+        span_lint_and_then(cx, lint, span, msg, |diag| {
+            let mut app = Applicability::MachineApplicable;
+            let start = start.map_or(String::new(), |x| {
+                Sugg::hir_with_applicability(cx, x, "<x>", &mut app)
+                    .maybe_paren()
+                    .to_string()
+            });
+            let end = Sugg::hir_with_applicability(cx, y, "<y>", &mut app).maybe_paren();
+            match span.with_source_text(cx, |src| src.starts_with('(') && src.ends_with(')')) {
+                Some(true) => {
+                    diag.span_suggestion(span, "use", format!("({start}{operator}{end})"), app);
+                },
+                Some(false) => {
+                    diag.span_suggestion(span, "use", format!("{start}{operator}{end}"), app);
+                },
+                None => {},
+            }
+        });
     }
 }
 
@@ -494,7 +618,7 @@ fn check_reversed_empty_range(cx: &LateContext<'_>, expr: &Expr<'_>) {
     }
 }
 
-fn y_plus_one<'t>(cx: &LateContext<'_>, expr: &'t Expr<'_>) -> Option<&'t Expr<'t>> {
+fn y_plus_one<'tcx>(cx: &LateContext<'_>, expr: &Expr<'tcx>) -> Option<&'tcx Expr<'tcx>> {
     match expr.kind {
         ExprKind::Binary(
             Spanned {
@@ -515,7 +639,7 @@ fn y_plus_one<'t>(cx: &LateContext<'_>, expr: &'t Expr<'_>) -> Option<&'t Expr<'
     }
 }
 
-fn y_minus_one<'t>(cx: &LateContext<'_>, expr: &'t Expr<'_>) -> Option<&'t Expr<'t>> {
+fn y_minus_one<'tcx>(cx: &LateContext<'_>, expr: &Expr<'tcx>) -> Option<&'tcx Expr<'tcx>> {
     match expr.kind {
         ExprKind::Binary(
             Spanned {
diff --git a/src/tools/clippy/clippy_lints/src/same_name_method.rs b/src/tools/clippy/clippy_lints/src/same_name_method.rs
index 85fde780e68..67eb71f7d07 100644
--- a/src/tools/clippy/clippy_lints/src/same_name_method.rs
+++ b/src/tools/clippy/clippy_lints/src/same_name_method.rs
@@ -3,7 +3,7 @@ use rustc_data_structures::fx::FxHashMap;
 use rustc_hir::def::{DefKind, Res};
 use rustc_hir::{HirId, Impl, ItemKind, Node, Path, QPath, TraitRef, TyKind};
 use rustc_lint::{LateContext, LateLintPass};
-use rustc_middle::ty::{AssocKind, AssocItem};
+use rustc_middle::ty::{AssocItem, AssocKind};
 use rustc_session::declare_lint_pass;
 use rustc_span::Span;
 use rustc_span::symbol::Symbol;
@@ -53,11 +53,7 @@ impl<'tcx> LateLintPass<'tcx> for SameNameMethod {
         for id in cx.tcx.hir_free_items() {
             if matches!(cx.tcx.def_kind(id.owner_id), DefKind::Impl { .. })
                 && let item = cx.tcx.hir_item(id)
-                && let ItemKind::Impl(Impl {
-                    of_trait,
-                    self_ty,
-                    ..
-                }) = &item.kind
+                && let ItemKind::Impl(Impl { of_trait, self_ty, .. }) = &item.kind
                 && let TyKind::Path(QPath::Resolved(_, Path { res, .. })) = self_ty.kind
             {
                 if !map.contains_key(res) {
@@ -127,7 +123,9 @@ impl<'tcx> LateLintPass<'tcx> for SameNameMethod {
                     },
                     None => {
                         for assoc_item in cx.tcx.associated_items(id.owner_id).in_definition_order() {
-                            let AssocKind::Fn { name, .. } = assoc_item.kind else { continue };
+                            let AssocKind::Fn { name, .. } = assoc_item.kind else {
+                                continue;
+                            };
                             let impl_span = cx.tcx.def_span(assoc_item.def_id);
                             let hir_id = cx.tcx.local_def_id_to_hir_id(assoc_item.def_id.expect_local());
                             if let Some(trait_spans) = existing_name.trait_methods.get(&name) {
@@ -140,10 +138,7 @@ impl<'tcx> LateLintPass<'tcx> for SameNameMethod {
                                     |diag| {
                                         // TODO should we `span_note` on every trait?
                                         // iterate on trait_spans?
-                                        diag.span_note(
-                                            trait_spans[0],
-                                            format!("existing `{name}` defined here"),
-                                        );
+                                        diag.span_note(trait_spans[0], format!("existing `{name}` defined here"));
                                     },
                                 );
                             }
diff --git a/src/tools/clippy/clippy_lints/src/unused_async.rs b/src/tools/clippy/clippy_lints/src/unused_async.rs
index e67afc7f5a8..5a3e4b7adf6 100644
--- a/src/tools/clippy/clippy_lints/src/unused_async.rs
+++ b/src/tools/clippy/clippy_lints/src/unused_async.rs
@@ -1,8 +1,12 @@
 use clippy_utils::diagnostics::span_lint_hir_and_then;
 use clippy_utils::is_def_id_trait_method;
+use clippy_utils::usage::is_todo_unimplemented_stub;
 use rustc_hir::def::DefKind;
 use rustc_hir::intravisit::{FnKind, Visitor, walk_expr, walk_fn};
-use rustc_hir::{Body, Defaultness, Expr, ExprKind, FnDecl, HirId, Node, TraitItem, YieldSource};
+use rustc_hir::{
+    Body, Closure, ClosureKind, CoroutineDesugaring, CoroutineKind, Defaultness, Expr, ExprKind, FnDecl, HirId, Node,
+    TraitItem, YieldSource,
+};
 use rustc_lint::{LateContext, LateLintPass};
 use rustc_middle::hir::nested_filter;
 use rustc_session::impl_lint_pass;
@@ -81,11 +85,8 @@ impl<'tcx> Visitor<'tcx> for AsyncFnVisitor<'_, 'tcx> {
 
         let is_async_block = matches!(
             ex.kind,
-            ExprKind::Closure(rustc_hir::Closure {
-                kind: rustc_hir::ClosureKind::Coroutine(rustc_hir::CoroutineKind::Desugared(
-                    rustc_hir::CoroutineDesugaring::Async,
-                    _
-                )),
+            ExprKind::Closure(Closure {
+                kind: ClosureKind::Coroutine(CoroutineKind::Desugared(CoroutineDesugaring::Async, _)),
                 ..
             })
         );
@@ -120,6 +121,7 @@ impl<'tcx> LateLintPass<'tcx> for UnusedAsync {
             && fn_kind.asyncness().is_async()
             && !is_def_id_trait_method(cx, def_id)
             && !is_default_trait_impl(cx, def_id)
+            && !async_fn_contains_todo_unimplemented_macro(cx, body)
         {
             let mut visitor = AsyncFnVisitor {
                 cx,
@@ -203,3 +205,18 @@ fn is_default_trait_impl(cx: &LateContext<'_>, def_id: LocalDefId) -> bool {
         })
     )
 }
+
+fn async_fn_contains_todo_unimplemented_macro(cx: &LateContext<'_>, body: &Body<'_>) -> bool {
+    if let ExprKind::Closure(closure) = body.value.kind
+        && let ClosureKind::Coroutine(CoroutineKind::Desugared(CoroutineDesugaring::Async, _)) = closure.kind
+        && let body = cx.tcx.hir_body(closure.body)
+        && let ExprKind::Block(block, _) = body.value.kind
+        && block.stmts.is_empty()
+        && let Some(expr) = block.expr
+        && let ExprKind::DropTemps(inner) = expr.kind
+    {
+        return is_todo_unimplemented_stub(cx, inner);
+    }
+
+    false
+}
diff --git a/src/tools/clippy/clippy_lints/src/unused_self.rs b/src/tools/clippy/clippy_lints/src/unused_self.rs
index 12da891a71b..dff39974a37 100644
--- a/src/tools/clippy/clippy_lints/src/unused_self.rs
+++ b/src/tools/clippy/clippy_lints/src/unused_self.rs
@@ -1,12 +1,10 @@
 use clippy_config::Conf;
 use clippy_utils::diagnostics::span_lint_and_help;
-use clippy_utils::macros::root_macro_call_first_node;
-use clippy_utils::sym;
+use clippy_utils::usage::is_todo_unimplemented_stub;
 use clippy_utils::visitors::is_local_used;
-use rustc_hir::{Body, Impl, ImplItem, ImplItemKind, ItemKind};
+use rustc_hir::{Impl, ImplItem, ImplItemKind, ItemKind};
 use rustc_lint::{LateContext, LateLintPass};
 use rustc_session::impl_lint_pass;
-use std::ops::ControlFlow;
 
 declare_clippy_lint! {
     /// ### What it does
@@ -60,18 +58,6 @@ impl<'tcx> LateLintPass<'tcx> for UnusedSelf {
         let parent = cx.tcx.hir_get_parent_item(impl_item.hir_id()).def_id;
         let parent_item = cx.tcx.hir_expect_item(parent);
         let assoc_item = cx.tcx.associated_item(impl_item.owner_id);
-        let contains_todo = |cx, body: &'_ Body<'_>| -> bool {
-            clippy_utils::visitors::for_each_expr_without_closures(body.value, |e| {
-                if let Some(macro_call) = root_macro_call_first_node(cx, e)
-                    && cx.tcx.is_diagnostic_item(sym::todo_macro, macro_call.def_id)
-                {
-                    ControlFlow::Break(())
-                } else {
-                    ControlFlow::Continue(())
-                }
-            })
-            .is_some()
-        };
         if let ItemKind::Impl(Impl { of_trait: None, .. }) = parent_item.kind
             && assoc_item.is_method()
             && let ImplItemKind::Fn(.., body_id) = &impl_item.kind
@@ -79,7 +65,7 @@ impl<'tcx> LateLintPass<'tcx> for UnusedSelf {
             && let body = cx.tcx.hir_body(*body_id)
             && let [self_param, ..] = body.params
             && !is_local_used(cx, body, self_param.pat.hir_id)
-            && !contains_todo(cx, body)
+            && !is_todo_unimplemented_stub(cx, body.value)
         {
             span_lint_and_help(
                 cx,
diff --git a/src/tools/clippy/clippy_lints/src/unused_trait_names.rs b/src/tools/clippy/clippy_lints/src/unused_trait_names.rs
index 610cec7b8c8..12f2804dbaa 100644
--- a/src/tools/clippy/clippy_lints/src/unused_trait_names.rs
+++ b/src/tools/clippy/clippy_lints/src/unused_trait_names.rs
@@ -6,7 +6,7 @@ use clippy_utils::source::snippet_opt;
 use rustc_errors::Applicability;
 use rustc_hir::def::{DefKind, Res};
 use rustc_hir::{Item, ItemKind, UseKind};
-use rustc_lint::{LateContext, LateLintPass, LintContext as _};
+use rustc_lint::{LateContext, LateLintPass};
 use rustc_middle::ty::Visibility;
 use rustc_session::impl_lint_pass;
 use rustc_span::symbol::kw;
@@ -59,13 +59,13 @@ impl_lint_pass!(UnusedTraitNames => [UNUSED_TRAIT_NAMES]);
 
 impl<'tcx> LateLintPass<'tcx> for UnusedTraitNames {
     fn check_item(&mut self, cx: &LateContext<'tcx>, item: &'tcx Item<'tcx>) {
-        if !item.span.in_external_macro(cx.sess().source_map())
+        if !item.span.from_expansion()
             && let ItemKind::Use(path, UseKind::Single(ident)) = item.kind
             // Ignore imports that already use Underscore
             && ident.name != kw::Underscore
             // Only check traits
             && let Some(Res::Def(DefKind::Trait, _)) = path.res.type_ns
-            && cx.tcx.maybe_unused_trait_imports(()).contains(&item.owner_id.def_id)
+            && cx.tcx.resolutions(()).maybe_unused_trait_imports.contains(&item.owner_id.def_id)
             // Only check this import if it is visible to its module only (no pub, pub(crate), ...)
             && let module = cx.tcx.parent_module_from_def_id(item.owner_id.def_id)
             && cx.tcx.visibility(item.owner_id.def_id) == Visibility::Restricted(module.to_def_id())
diff --git a/src/tools/clippy/clippy_lints/src/useless_conversion.rs b/src/tools/clippy/clippy_lints/src/useless_conversion.rs
index 380ddea4e1e..e5b20c0e0a1 100644
--- a/src/tools/clippy/clippy_lints/src/useless_conversion.rs
+++ b/src/tools/clippy/clippy_lints/src/useless_conversion.rs
@@ -176,6 +176,33 @@ impl<'tcx> LateLintPass<'tcx> for UselessConversion {
                 }
             },
 
+            ExprKind::MethodCall(path, recv, [arg], _) => {
+                if matches!(
+                    path.ident.name,
+                    sym::map | sym::map_err | sym::map_break | sym::map_continue
+                ) && has_eligible_receiver(cx, recv, e)
+                    && (is_trait_item(cx, arg, sym::Into) || is_trait_item(cx, arg, sym::From))
+                    && let ty::FnDef(_, args) = cx.typeck_results().expr_ty(arg).kind()
+                    && let &[from_ty, to_ty] = args.into_type_list(cx.tcx).as_slice()
+                    && same_type_and_consts(from_ty, to_ty)
+                {
+                    span_lint_and_then(
+                        cx,
+                        USELESS_CONVERSION,
+                        e.span.with_lo(recv.span.hi()),
+                        format!("useless conversion to the same type: `{from_ty}`"),
+                        |diag| {
+                            diag.suggest_remove_item(
+                                cx,
+                                e.span.with_lo(recv.span.hi()),
+                                "consider removing",
+                                Applicability::MachineApplicable,
+                            );
+                        },
+                    );
+                }
+            },
+
             ExprKind::MethodCall(name, recv, [], _) => {
                 if is_trait_method(cx, e, sym::Into) && name.ident.name == sym::into {
                     let a = cx.typeck_results().expr_ty(e);
@@ -412,32 +439,6 @@ impl<'tcx> LateLintPass<'tcx> for UselessConversion {
     }
 }
 
-/// Check if `arg` is a `Into::into` or `From::from` applied to `receiver` to give `expr`, through a
-/// higher-order mapping function.
-pub fn check_function_application(cx: &LateContext<'_>, expr: &Expr<'_>, recv: &Expr<'_>, arg: &Expr<'_>) {
-    if has_eligible_receiver(cx, recv, expr)
-        && (is_trait_item(cx, arg, sym::Into) || is_trait_item(cx, arg, sym::From))
-        && let ty::FnDef(_, args) = cx.typeck_results().expr_ty(arg).kind()
-        && let &[from_ty, to_ty] = args.into_type_list(cx.tcx).as_slice()
-        && same_type_and_consts(from_ty, to_ty)
-    {
-        span_lint_and_then(
-            cx,
-            USELESS_CONVERSION,
-            expr.span.with_lo(recv.span.hi()),
-            format!("useless conversion to the same type: `{from_ty}`"),
-            |diag| {
-                diag.suggest_remove_item(
-                    cx,
-                    expr.span.with_lo(recv.span.hi()),
-                    "consider removing",
-                    Applicability::MachineApplicable,
-                );
-            },
-        );
-    }
-}
-
 fn has_eligible_receiver(cx: &LateContext<'_>, recv: &Expr<'_>, expr: &Expr<'_>) -> bool {
     if is_inherent_method_call(cx, expr) {
         matches!(
diff --git a/src/tools/clippy/clippy_lints_internal/src/derive_deserialize_allowing_unknown.rs b/src/tools/clippy/clippy_lints_internal/src/derive_deserialize_allowing_unknown.rs
index 88b099c477f..41fafc08c25 100644
--- a/src/tools/clippy/clippy_lints_internal/src/derive_deserialize_allowing_unknown.rs
+++ b/src/tools/clippy/clippy_lints_internal/src/derive_deserialize_allowing_unknown.rs
@@ -2,6 +2,7 @@ use clippy_utils::diagnostics::span_lint;
 use clippy_utils::paths;
 use rustc_ast::tokenstream::{TokenStream, TokenTree};
 use rustc_ast::{AttrStyle, DelimArgs};
+use rustc_attr_data_structures::{AttributeKind, find_attr};
 use rustc_hir::def::Res;
 use rustc_hir::def_id::LocalDefId;
 use rustc_hir::{
@@ -11,7 +12,6 @@ use rustc_lint::{LateContext, LateLintPass};
 use rustc_lint_defs::declare_tool_lint;
 use rustc_middle::ty::TyCtxt;
 use rustc_session::declare_lint_pass;
-use rustc_span::sym;
 
 declare_tool_lint! {
     /// ### What it does
@@ -88,7 +88,10 @@ impl<'tcx> LateLintPass<'tcx> for DeriveDeserializeAllowingUnknown {
         }
 
         // Is it derived?
-        if !find_attr!(cx.tcx.get_all_attrs(item.owner_id), AttributeKind::AutomaticallyDerived(..)) {
+        if !find_attr!(
+            cx.tcx.get_all_attrs(item.owner_id),
+            AttributeKind::AutomaticallyDerived(..)
+        ) {
             return;
         }
 
diff --git a/src/tools/clippy/clippy_lints_internal/src/lint_without_lint_pass.rs b/src/tools/clippy/clippy_lints_internal/src/lint_without_lint_pass.rs
index 45a866030b2..fda65bc84ed 100644
--- a/src/tools/clippy/clippy_lints_internal/src/lint_without_lint_pass.rs
+++ b/src/tools/clippy/clippy_lints_internal/src/lint_without_lint_pass.rs
@@ -1,7 +1,7 @@
 use crate::internal_paths;
 use clippy_utils::diagnostics::{span_lint, span_lint_and_help};
-use clippy_utils::is_lint_allowed;
 use clippy_utils::macros::root_macro_call_first_node;
+use clippy_utils::{is_lint_allowed, sym};
 use rustc_ast::ast::LitKind;
 use rustc_data_structures::fx::{FxIndexMap, FxIndexSet};
 use rustc_hir as hir;
@@ -12,9 +12,9 @@ use rustc_hir::{ExprKind, HirId, Item, MutTy, Mutability, Path, TyKind};
 use rustc_lint::{LateContext, LateLintPass};
 use rustc_middle::hir::nested_filter;
 use rustc_session::{declare_tool_lint, impl_lint_pass};
+use rustc_span::Span;
 use rustc_span::source_map::Spanned;
 use rustc_span::symbol::Symbol;
-use rustc_span::{Span, sym};
 
 declare_tool_lint! {
     /// ### What it does
@@ -160,9 +160,8 @@ impl<'tcx> LateLintPass<'tcx> for LintWithoutLintPass {
                 let body = cx.tcx.hir_body_owned_by(
                     impl_item_refs
                         .iter()
-                        .find(|iiref| iiref.ident.as_str() == "lint_vec")
+                        .find(|&&iiref| cx.tcx.item_name(iiref.owner_id) == sym::lint_vec)
                         .expect("LintPass needs to implement lint_vec")
-                        .id
                         .owner_id
                         .def_id,
                 );
diff --git a/src/tools/clippy/clippy_lints_internal/src/msrv_attr_impl.rs b/src/tools/clippy/clippy_lints_internal/src/msrv_attr_impl.rs
index 70b3c03d2bb..66aeb910891 100644
--- a/src/tools/clippy/clippy_lints_internal/src/msrv_attr_impl.rs
+++ b/src/tools/clippy/clippy_lints_internal/src/msrv_attr_impl.rs
@@ -1,6 +1,7 @@
 use crate::internal_paths;
 use clippy_utils::diagnostics::span_lint_and_sugg;
 use clippy_utils::source::snippet;
+use clippy_utils::sym;
 use rustc_errors::Applicability;
 use rustc_hir as hir;
 use rustc_lint::{LateContext, LateLintPass, LintContext};
@@ -40,7 +41,9 @@ impl LateLintPass<'_> for MsrvAttrImpl {
                     .filter(|t| matches!(t.kind(), GenericArgKind::Type(_)))
                     .any(|t| internal_paths::MSRV_STACK.matches_ty(cx, t.expect_ty()))
             })
-            && !items.iter().any(|item| item.ident.name.as_str() == "check_attributes")
+            && !items
+                .iter()
+                .any(|&item| cx.tcx.item_name(item.owner_id) == sym::check_attributes)
         {
             let span = cx.sess().source_map().span_through_char(item.span, '{');
             span_lint_and_sugg(
diff --git a/src/tools/clippy/clippy_test_deps/Cargo.lock b/src/tools/clippy/clippy_test_deps/Cargo.lock
index a591dae3a1a..5be404f24e6 100644
--- a/src/tools/clippy/clippy_test_deps/Cargo.lock
+++ b/src/tools/clippy/clippy_test_deps/Cargo.lock
@@ -72,6 +72,7 @@ dependencies = [
  "futures",
  "if_chain",
  "itertools",
+ "libc",
  "parking_lot",
  "quote",
  "regex",
diff --git a/src/tools/clippy/clippy_test_deps/Cargo.toml b/src/tools/clippy/clippy_test_deps/Cargo.toml
index a23ffcaf2f9..fcedc5d4843 100644
--- a/src/tools/clippy/clippy_test_deps/Cargo.toml
+++ b/src/tools/clippy/clippy_test_deps/Cargo.toml
@@ -6,6 +6,7 @@ edition = "2021"
 # Add dependencies here to make them available in ui tests.
 
 [dependencies]
+libc = "0.2"
 regex = "1.5.5"
 serde = { version = "1.0.145", features = ["derive"] }
 if_chain = "1.0"
diff --git a/src/tools/clippy/clippy_utils/README.md b/src/tools/clippy/clippy_utils/README.md
index 645b644d9f4..19e71f6af1d 100644
--- a/src/tools/clippy/clippy_utils/README.md
+++ b/src/tools/clippy/clippy_utils/README.md
@@ -8,7 +8,7 @@ This crate is only guaranteed to build with this `nightly` toolchain:
 
 <!-- begin autogenerated nightly -->
 ```
-nightly-2025-07-10
+nightly-2025-07-25
 ```
 <!-- end autogenerated nightly -->
 
diff --git a/src/tools/clippy/clippy_utils/src/diagnostics.rs b/src/tools/clippy/clippy_utils/src/diagnostics.rs
index 8453165818b..625e1eead21 100644
--- a/src/tools/clippy/clippy_utils/src/diagnostics.rs
+++ b/src/tools/clippy/clippy_utils/src/diagnostics.rs
@@ -22,10 +22,13 @@ fn docs_link(diag: &mut Diag<'_, ()>, lint: &'static Lint) {
     {
         diag.help(format!(
             "for further information visit https://rust-lang.github.io/rust-clippy/{}/index.html#{lint}",
-            &option_env!("RUST_RELEASE_NUM").map_or("master".to_string(), |n| {
-                // extract just major + minor version and ignore patch versions
-                format!("rust-{}", n.rsplit_once('.').unwrap().1)
-            })
+            &option_env!("RUST_RELEASE_NUM").map_or_else(
+                || "master".to_string(),
+                |n| {
+                    // extract just major + minor version and ignore patch versions
+                    format!("rust-{}", n.rsplit_once('.').unwrap().1)
+                }
+            )
         ));
     }
 }
diff --git a/src/tools/clippy/clippy_utils/src/lib.rs b/src/tools/clippy/clippy_utils/src/lib.rs
index ff1ee663f9b..ce5af4d2f48 100644
--- a/src/tools/clippy/clippy_utils/src/lib.rs
+++ b/src/tools/clippy/clippy_utils/src/lib.rs
@@ -89,8 +89,8 @@ use std::sync::{Mutex, MutexGuard, OnceLock};
 
 use itertools::Itertools;
 use rustc_abi::Integer;
-use rustc_ast::join_path_syms;
 use rustc_ast::ast::{self, LitKind, RangeLimits};
+use rustc_ast::join_path_syms;
 use rustc_attr_data_structures::{AttributeKind, find_attr};
 use rustc_data_structures::fx::FxHashMap;
 use rustc_data_structures::packed::Pu128;
@@ -114,7 +114,7 @@ use rustc_middle::hir::nested_filter;
 use rustc_middle::hir::place::PlaceBase;
 use rustc_middle::lint::LevelAndSource;
 use rustc_middle::mir::{AggregateKind, Operand, RETURN_PLACE, Rvalue, StatementKind, TerminatorKind};
-use rustc_middle::ty::adjustment::{Adjust, Adjustment, AutoBorrow};
+use rustc_middle::ty::adjustment::{Adjust, Adjustment, AutoBorrow, PointerCoercion};
 use rustc_middle::ty::layout::IntegerExt;
 use rustc_middle::ty::{
     self as rustc_ty, Binder, BorrowKind, ClosureKind, EarlyBinder, GenericArgKind, GenericArgsRef, IntTy, Ty, TyCtxt,
@@ -1897,6 +1897,7 @@ pub fn is_must_use_func_call(cx: &LateContext<'_>, expr: &Expr<'_>) -> bool {
 /// * `|x| { return x }`
 /// * `|x| { return x; }`
 /// * `|(x, y)| (x, y)`
+/// * `|[x, y]| [x, y]`
 ///
 /// Consider calling [`is_expr_untyped_identity_function`] or [`is_expr_identity_function`] instead.
 fn is_body_identity_function(cx: &LateContext<'_>, func: &Body<'_>) -> bool {
@@ -1907,9 +1908,9 @@ fn is_body_identity_function(cx: &LateContext<'_>, func: &Body<'_>) -> bool {
             .get(pat.hir_id)
             .is_some_and(|mode| matches!(mode.0, ByRef::Yes(_)))
         {
-            // If a tuple `(x, y)` is of type `&(i32, i32)`, then due to match ergonomics,
-            // the inner patterns become references. Don't consider this the identity function
-            // as that changes types.
+            // If the parameter is `(x, y)` of type `&(T, T)`, or `[x, y]` of type `&[T; 2]`, then
+            // due to match ergonomics, the inner patterns become references. Don't consider this
+            // the identity function as that changes types.
             return false;
         }
 
@@ -1922,6 +1923,13 @@ fn is_body_identity_function(cx: &LateContext<'_>, func: &Body<'_>) -> bool {
             {
                 pats.iter().zip(tup).all(|(pat, expr)| check_pat(cx, pat, expr))
             },
+            (PatKind::Slice(before, slice, after), ExprKind::Array(arr))
+                if slice.is_none() && before.len() + after.len() == arr.len() =>
+            {
+                (before.iter().chain(after))
+                    .zip(arr)
+                    .all(|(pat, expr)| check_pat(cx, pat, expr))
+            },
             _ => false,
         }
     }
@@ -3269,15 +3277,13 @@ fn maybe_get_relative_path(from: &DefPath, to: &DefPath, max_super: usize) -> St
 
     if go_up_by > max_super {
         // `super` chain would be too long, just use the absolute path instead
-        join_path_syms(
-            once(kw::Crate).chain(to.data.iter().filter_map(|el| {
-                if let DefPathData::TypeNs(sym) = el.data {
-                    Some(sym)
-                } else {
-                    None
-                }
-            }))
-        )
+        join_path_syms(once(kw::Crate).chain(to.data.iter().filter_map(|el| {
+            if let DefPathData::TypeNs(sym) = el.data {
+                Some(sym)
+            } else {
+                None
+            }
+        })))
     } else {
         join_path_syms(repeat_n(kw::Super, go_up_by).chain(path))
     }
@@ -3560,3 +3566,14 @@ pub fn potential_return_of_enclosing_body(cx: &LateContext<'_>, expr: &Expr<'_>)
     // enclosing body.
     false
 }
+
+/// Checks if the expression has adjustments that require coercion, for example: dereferencing with
+/// overloaded deref, coercing pointers and `dyn` objects.
+pub fn expr_adjustment_requires_coercion(cx: &LateContext<'_>, expr: &Expr<'_>) -> bool {
+    cx.typeck_results().expr_adjustments(expr).iter().any(|adj| {
+        matches!(
+            adj.kind,
+            Adjust::Deref(Some(_)) | Adjust::Pointer(PointerCoercion::Unsize) | Adjust::NeverToAny
+        )
+    })
+}
diff --git a/src/tools/clippy/clippy_utils/src/paths.rs b/src/tools/clippy/clippy_utils/src/paths.rs
index c681806517a..ea8cfc59356 100644
--- a/src/tools/clippy/clippy_utils/src/paths.rs
+++ b/src/tools/clippy/clippy_utils/src/paths.rs
@@ -308,10 +308,11 @@ fn local_item_child_by_name(tcx: TyCtxt<'_>, local_id: LocalDefId, ns: PathNS, n
                 None
             }
         }),
-        ItemKind::Impl(..) | ItemKind::Trait(..)
-            => tcx.associated_items(local_id).filter_by_name_unhygienic(name)
-                .find(|assoc_item| ns.matches(Some(assoc_item.namespace())))
-                .map(|assoc_item| assoc_item.def_id),
+        ItemKind::Impl(..) | ItemKind::Trait(..) => tcx
+            .associated_items(local_id)
+            .filter_by_name_unhygienic(name)
+            .find(|assoc_item| ns.matches(Some(assoc_item.namespace())))
+            .map(|assoc_item| assoc_item.def_id),
         _ => None,
     }
 }
diff --git a/src/tools/clippy/clippy_utils/src/sym.rs b/src/tools/clippy/clippy_utils/src/sym.rs
index 8a8218c6976..934be97d94e 100644
--- a/src/tools/clippy/clippy_utils/src/sym.rs
+++ b/src/tools/clippy/clippy_utils/src/sym.rs
@@ -98,6 +98,7 @@ generate! {
     ceil_char_boundary,
     chain,
     chars,
+    check_attributes,
     checked_abs,
     checked_add,
     checked_isqrt,
@@ -196,6 +197,7 @@ generate! {
     kw,
     last,
     lazy_static,
+    lint_vec,
     ln,
     lock,
     lock_api,
@@ -261,6 +263,7 @@ generate! {
     read_to_end,
     read_to_string,
     read_unaligned,
+    redundant_imports,
     redundant_pub_crate,
     regex,
     rem_euclid,
diff --git a/src/tools/clippy/clippy_utils/src/ty/mod.rs b/src/tools/clippy/clippy_utils/src/ty/mod.rs
index fe208c032f4..d70232ef3aa 100644
--- a/src/tools/clippy/clippy_utils/src/ty/mod.rs
+++ b/src/tools/clippy/clippy_utils/src/ty/mod.rs
@@ -492,10 +492,7 @@ pub fn peel_mid_ty_refs_is_mutable(ty: Ty<'_>) -> (Ty<'_>, usize, Mutability) {
 
 /// Returns `true` if the given type is an `unsafe` function.
 pub fn type_is_unsafe_function<'tcx>(cx: &LateContext<'tcx>, ty: Ty<'tcx>) -> bool {
-    match ty.kind() {
-        ty::FnDef(..) | ty::FnPtr(..) => ty.fn_sig(cx.tcx).safety().is_unsafe(),
-        _ => false,
-    }
+    ty.is_fn() && ty.fn_sig(cx.tcx).safety().is_unsafe()
 }
 
 /// Returns the base type for HIR references and pointers.
diff --git a/src/tools/clippy/clippy_utils/src/ty/type_certainty/mod.rs b/src/tools/clippy/clippy_utils/src/ty/type_certainty/mod.rs
index 84df36c75bf..d9c7e6eac9f 100644
--- a/src/tools/clippy/clippy_utils/src/ty/type_certainty/mod.rs
+++ b/src/tools/clippy/clippy_utils/src/ty/type_certainty/mod.rs
@@ -12,10 +12,11 @@
 //! be considered a bug.
 
 use crate::paths::{PathNS, lookup_path};
+use rustc_ast::{LitFloatType, LitIntType, LitKind};
 use rustc_hir::def::{DefKind, Res};
 use rustc_hir::def_id::DefId;
 use rustc_hir::intravisit::{InferKind, Visitor, VisitorExt, walk_qpath, walk_ty};
-use rustc_hir::{self as hir, AmbigArg, Expr, ExprKind, GenericArgs, HirId, Node, PathSegment, QPath, TyKind};
+use rustc_hir::{self as hir, AmbigArg, Expr, ExprKind, GenericArgs, HirId, Node, Param, PathSegment, QPath, TyKind};
 use rustc_lint::LateContext;
 use rustc_middle::ty::{self, AdtDef, GenericArgKind, Ty};
 use rustc_span::Span;
@@ -24,22 +25,24 @@ mod certainty;
 use certainty::{Certainty, Meet, join, meet};
 
 pub fn expr_type_is_certain(cx: &LateContext<'_>, expr: &Expr<'_>) -> bool {
-    expr_type_certainty(cx, expr).is_certain()
+    expr_type_certainty(cx, expr, false).is_certain()
 }
 
-fn expr_type_certainty(cx: &LateContext<'_>, expr: &Expr<'_>) -> Certainty {
+/// Determine the type certainty of `expr`. `in_arg` indicates that the expression happens within
+/// the evaluation of a function or method call argument.
+fn expr_type_certainty(cx: &LateContext<'_>, expr: &Expr<'_>, in_arg: bool) -> Certainty {
     let certainty = match &expr.kind {
         ExprKind::Unary(_, expr)
         | ExprKind::Field(expr, _)
         | ExprKind::Index(expr, _, _)
-        | ExprKind::AddrOf(_, _, expr) => expr_type_certainty(cx, expr),
+        | ExprKind::AddrOf(_, _, expr) => expr_type_certainty(cx, expr, in_arg),
 
-        ExprKind::Array(exprs) => join(exprs.iter().map(|expr| expr_type_certainty(cx, expr))),
+        ExprKind::Array(exprs) => join(exprs.iter().map(|expr| expr_type_certainty(cx, expr, in_arg))),
 
         ExprKind::Call(callee, args) => {
-            let lhs = expr_type_certainty(cx, callee);
+            let lhs = expr_type_certainty(cx, callee, false);
             let rhs = if type_is_inferable_from_arguments(cx, expr) {
-                meet(args.iter().map(|arg| expr_type_certainty(cx, arg)))
+                meet(args.iter().map(|arg| expr_type_certainty(cx, arg, true)))
             } else {
                 Certainty::Uncertain
             };
@@ -47,7 +50,7 @@ fn expr_type_certainty(cx: &LateContext<'_>, expr: &Expr<'_>) -> Certainty {
         },
 
         ExprKind::MethodCall(method, receiver, args, _) => {
-            let mut receiver_type_certainty = expr_type_certainty(cx, receiver);
+            let mut receiver_type_certainty = expr_type_certainty(cx, receiver, false);
             // Even if `receiver_type_certainty` is `Certain(Some(..))`, the `Self` type in the method
             // identified by `type_dependent_def_id(..)` can differ. This can happen as a result of a `deref`,
             // for example. So update the `DefId` in `receiver_type_certainty` (if any).
@@ -59,7 +62,8 @@ fn expr_type_certainty(cx: &LateContext<'_>, expr: &Expr<'_>) -> Certainty {
             let lhs = path_segment_certainty(cx, receiver_type_certainty, method, false);
             let rhs = if type_is_inferable_from_arguments(cx, expr) {
                 meet(
-                    std::iter::once(receiver_type_certainty).chain(args.iter().map(|arg| expr_type_certainty(cx, arg))),
+                    std::iter::once(receiver_type_certainty)
+                        .chain(args.iter().map(|arg| expr_type_certainty(cx, arg, true))),
                 )
             } else {
                 Certainty::Uncertain
@@ -67,16 +71,39 @@ fn expr_type_certainty(cx: &LateContext<'_>, expr: &Expr<'_>) -> Certainty {
             lhs.join(rhs)
         },
 
-        ExprKind::Tup(exprs) => meet(exprs.iter().map(|expr| expr_type_certainty(cx, expr))),
+        ExprKind::Tup(exprs) => meet(exprs.iter().map(|expr| expr_type_certainty(cx, expr, in_arg))),
 
-        ExprKind::Binary(_, lhs, rhs) => expr_type_certainty(cx, lhs).meet(expr_type_certainty(cx, rhs)),
+        ExprKind::Binary(_, lhs, rhs) => {
+            // If one of the side of the expression is uncertain, the certainty will come from the other side,
+            // with no information on the type.
+            match (
+                expr_type_certainty(cx, lhs, in_arg),
+                expr_type_certainty(cx, rhs, in_arg),
+            ) {
+                (Certainty::Uncertain, Certainty::Certain(_)) | (Certainty::Certain(_), Certainty::Uncertain) => {
+                    Certainty::Certain(None)
+                },
+                (l, r) => l.meet(r),
+            }
+        },
 
-        ExprKind::Lit(_) => Certainty::Certain(None),
+        ExprKind::Lit(lit) => {
+            if !in_arg
+                && matches!(
+                    lit.node,
+                    LitKind::Int(_, LitIntType::Unsuffixed) | LitKind::Float(_, LitFloatType::Unsuffixed)
+                )
+            {
+                Certainty::Uncertain
+            } else {
+                Certainty::Certain(None)
+            }
+        },
 
         ExprKind::Cast(_, ty) => type_certainty(cx, ty),
 
         ExprKind::If(_, if_expr, Some(else_expr)) => {
-            expr_type_certainty(cx, if_expr).join(expr_type_certainty(cx, else_expr))
+            expr_type_certainty(cx, if_expr, in_arg).join(expr_type_certainty(cx, else_expr, in_arg))
         },
 
         ExprKind::Path(qpath) => qpath_certainty(cx, qpath, false),
@@ -188,6 +215,20 @@ fn qpath_certainty(cx: &LateContext<'_>, qpath: &QPath<'_>, resolves_to_type: bo
     certainty
 }
 
+/// Tries to tell whether `param` resolves to something certain, e.g., a non-wildcard type if
+/// present. The certainty `DefId` is cleared before returning.
+fn param_certainty(cx: &LateContext<'_>, param: &Param<'_>) -> Certainty {
+    let owner_did = cx.tcx.hir_enclosing_body_owner(param.hir_id);
+    let Some(fn_decl) = cx.tcx.hir_fn_decl_by_hir_id(cx.tcx.local_def_id_to_hir_id(owner_did)) else {
+        return Certainty::Uncertain;
+    };
+    let inputs = fn_decl.inputs;
+    let body_params = cx.tcx.hir_body_owned_by(owner_did).params;
+    std::iter::zip(body_params, inputs)
+        .find(|(p, _)| p.hir_id == param.hir_id)
+        .map_or(Certainty::Uncertain, |(_, ty)| type_certainty(cx, ty).clear_def_id())
+}
+
 fn path_segment_certainty(
     cx: &LateContext<'_>,
     parent_certainty: Certainty,
@@ -240,15 +281,16 @@ fn path_segment_certainty(
 
         // `get_parent` because `hir_id` refers to a `Pat`, and we're interested in the node containing the `Pat`.
         Res::Local(hir_id) => match cx.tcx.parent_hir_node(hir_id) {
-            // An argument's type is always certain.
-            Node::Param(..) => Certainty::Certain(None),
+            // A parameter's type is not always certain, as it may come from an untyped closure definition,
+            // or from a wildcard in a typed closure definition.
+            Node::Param(param) => param_certainty(cx, param),
             // A local's type is certain if its type annotation is certain or it has an initializer whose
             // type is certain.
             Node::LetStmt(local) => {
                 let lhs = local.ty.map_or(Certainty::Uncertain, |ty| type_certainty(cx, ty));
                 let rhs = local
                     .init
-                    .map_or(Certainty::Uncertain, |init| expr_type_certainty(cx, init));
+                    .map_or(Certainty::Uncertain, |init| expr_type_certainty(cx, init, false));
                 let certainty = lhs.join(rhs);
                 if resolves_to_type {
                     certainty
diff --git a/src/tools/clippy/clippy_utils/src/usage.rs b/src/tools/clippy/clippy_utils/src/usage.rs
index 1b049b6d12c..76d43feee12 100644
--- a/src/tools/clippy/clippy_utils/src/usage.rs
+++ b/src/tools/clippy/clippy_utils/src/usage.rs
@@ -1,3 +1,4 @@
+use crate::macros::root_macro_call_first_node;
 use crate::visitors::{Descend, Visitable, for_each_expr, for_each_expr_without_closures};
 use crate::{self as utils, get_enclosing_loop_or_multi_call_closure};
 use core::ops::ControlFlow;
@@ -9,6 +10,7 @@ use rustc_lint::LateContext;
 use rustc_middle::hir::nested_filter;
 use rustc_middle::mir::FakeReadCause;
 use rustc_middle::ty;
+use rustc_span::sym;
 
 /// Returns a set of mutated local variable IDs, or `None` if mutations could not be determined.
 pub fn mutated_variables<'tcx>(expr: &'tcx Expr<'_>, cx: &LateContext<'tcx>) -> Option<HirIdSet> {
@@ -140,6 +142,46 @@ impl<'tcx> Visitor<'tcx> for BindingUsageFinder<'_, 'tcx> {
     }
 }
 
+/// Checks if the given expression is a macro call to `todo!()` or `unimplemented!()`.
+pub fn is_todo_unimplemented_macro(cx: &LateContext<'_>, expr: &Expr<'_>) -> bool {
+    root_macro_call_first_node(cx, expr).is_some_and(|macro_call| {
+        [sym::todo_macro, sym::unimplemented_macro]
+            .iter()
+            .any(|&sym| cx.tcx.is_diagnostic_item(sym, macro_call.def_id))
+    })
+}
+
+/// Checks if the given expression is a stub, i.e., a `todo!()` or `unimplemented!()` expression,
+/// or a block whose last expression is a `todo!()` or `unimplemented!()`.
+pub fn is_todo_unimplemented_stub(cx: &LateContext<'_>, expr: &Expr<'_>) -> bool {
+    if let ExprKind::Block(block, _) = expr.kind {
+        if let Some(last_expr) = block.expr {
+            return is_todo_unimplemented_macro(cx, last_expr);
+        }
+
+        return block.stmts.last().is_some_and(|stmt| {
+            if let hir::StmtKind::Expr(expr) | hir::StmtKind::Semi(expr) = stmt.kind {
+                return is_todo_unimplemented_macro(cx, expr);
+            }
+            false
+        });
+    }
+
+    is_todo_unimplemented_macro(cx, expr)
+}
+
+/// Checks if the given expression contains macro call to `todo!()` or `unimplemented!()`.
+pub fn contains_todo_unimplement_macro(cx: &LateContext<'_>, expr: &'_ Expr<'_>) -> bool {
+    for_each_expr_without_closures(expr, |e| {
+        if is_todo_unimplemented_macro(cx, e) {
+            ControlFlow::Break(())
+        } else {
+            ControlFlow::Continue(())
+        }
+    })
+    .is_some()
+}
+
 pub fn contains_return_break_continue_macro(expression: &Expr<'_>) -> bool {
     for_each_expr_without_closures(expression, |e| {
         match e.kind {
diff --git a/src/tools/clippy/rust-toolchain.toml b/src/tools/clippy/rust-toolchain.toml
index f46e079db3f..0edb80edd04 100644
--- a/src/tools/clippy/rust-toolchain.toml
+++ b/src/tools/clippy/rust-toolchain.toml
@@ -1,6 +1,6 @@
 [toolchain]
 # begin autogenerated nightly
-channel = "nightly-2025-07-10"
+channel = "nightly-2025-07-25"
 # end autogenerated nightly
 components = ["cargo", "llvm-tools", "rust-src", "rust-std", "rustc", "rustc-dev", "rustfmt"]
 profile = "minimal"
diff --git a/src/tools/clippy/rustc_tools_util/src/lib.rs b/src/tools/clippy/rustc_tools_util/src/lib.rs
index b45edf23455..194ed84d04c 100644
--- a/src/tools/clippy/rustc_tools_util/src/lib.rs
+++ b/src/tools/clippy/rustc_tools_util/src/lib.rs
@@ -157,7 +157,8 @@ pub fn get_commit_date() -> Option<String> {
 
 #[must_use]
 pub fn get_compiler_version() -> Option<String> {
-    get_output("rustc", &["-V"])
+    let compiler = std::option_env!("RUSTC").unwrap_or("rustc");
+    get_output(compiler, &["-V"])
 }
 
 #[must_use]
@@ -172,6 +173,8 @@ pub fn get_channel(compiler_version: Option<String>) -> String {
             return String::from("beta");
         } else if rustc_output.contains("nightly") {
             return String::from("nightly");
+        } else if rustc_output.contains("dev") {
+            return String::from("dev");
         }
     }
 
diff --git a/src/tools/clippy/tests/compile-test.rs b/src/tools/clippy/tests/compile-test.rs
index 57d623b2cfc..464efc45c6b 100644
--- a/src/tools/clippy/tests/compile-test.rs
+++ b/src/tools/clippy/tests/compile-test.rs
@@ -151,7 +151,32 @@ impl TestContext {
         defaults.set_custom(
             "dependencies",
             DependencyBuilder {
-                program: CommandBuilder::cargo(),
+                program: {
+                    let mut p = CommandBuilder::cargo();
+                    // If we run in bootstrap, we need to use the right compiler for building the
+                    // tests -- not the compiler that built clippy, but the compiler that got linked
+                    // into clippy. Just invoking TEST_RUSTC does not work because LD_LIBRARY_PATH
+                    // is set in a way that makes it pick the wrong sysroot. Sadly due to
+                    // <https://github.com/rust-lang/cargo/issues/4423> we cannot use RUSTFLAGS to
+                    // set `--sysroot`, so we need to use bootstrap's rustc wrapper. That wrapper
+                    // however has some staging logic that is hurting us here, so to work around
+                    // that we set both the "real" and "staging" rustc to TEST_RUSTC, including the
+                    // associated library paths.
+                    #[expect(
+                        clippy::option_env_unwrap,
+                        reason = "TEST_RUSTC will ensure that the requested env vars are set during compile time"
+                    )]
+                    if let Some(rustc) = option_env!("TEST_RUSTC") {
+                        let libdir = option_env!("TEST_RUSTC_LIB").unwrap();
+                        let sysroot = option_env!("TEST_SYSROOT").unwrap();
+                        p.envs.push(("RUSTC_REAL".into(), Some(rustc.into())));
+                        p.envs.push(("RUSTC_REAL_LIBDIR".into(), Some(libdir.into())));
+                        p.envs.push(("RUSTC_SNAPSHOT".into(), Some(rustc.into())));
+                        p.envs.push(("RUSTC_SNAPSHOT_LIBDIR".into(), Some(libdir.into())));
+                        p.envs.push(("RUSTC_SYSROOT".into(), Some(sysroot.into())));
+                    }
+                    p
+                },
                 crate_manifest_path: Path::new("clippy_test_deps").join("Cargo.toml"),
                 build_std: None,
                 bless_lockfile: self.args.bless,
@@ -192,6 +217,9 @@ impl TestContext {
             let dep = format!("-Ldependency={}", Path::new(host_libs).join("deps").display());
             config.program.args.push(dep.into());
         }
+        if let Some(sysroot) = option_env!("TEST_SYSROOT") {
+            config.program.args.push(format!("--sysroot={sysroot}").into());
+        }
 
         config.program.program = profile_path.join(if cfg!(windows) {
             "clippy-driver.exe"
diff --git a/src/tools/clippy/tests/ui-toml/check_incompatible_msrv_in_tests/check_incompatible_msrv_in_tests.enabled.stderr b/src/tools/clippy/tests/ui-toml/check_incompatible_msrv_in_tests/check_incompatible_msrv_in_tests.enabled.stderr
index 8a85d38fba3..608264beb10 100644
--- a/src/tools/clippy/tests/ui-toml/check_incompatible_msrv_in_tests/check_incompatible_msrv_in_tests.enabled.stderr
+++ b/src/tools/clippy/tests/ui-toml/check_incompatible_msrv_in_tests/check_incompatible_msrv_in_tests.enabled.stderr
@@ -18,6 +18,8 @@ error: current MSRV (Minimum Supported Rust Version) is `1.3.0` but this item is
    |
 LL |         sleep(Duration::new(1, 0));
    |         ^^^^^
+   |
+   = note: you may want to conditionally increase the MSRV considered by Clippy using the `clippy::msrv` attribute
 
 error: aborting due to 3 previous errors
 
diff --git a/src/tools/clippy/tests/ui-toml/enum_variant_size/enum_variant_size.stderr b/src/tools/clippy/tests/ui-toml/enum_variant_size/enum_variant_size.stderr
index 020b3cc7878..a5dfd7015a3 100644
--- a/src/tools/clippy/tests/ui-toml/enum_variant_size/enum_variant_size.stderr
+++ b/src/tools/clippy/tests/ui-toml/enum_variant_size/enum_variant_size.stderr
@@ -12,7 +12,7 @@ LL | | }
    |
    = note: `-D clippy::large-enum-variant` implied by `-D warnings`
    = help: to override `-D warnings` add `#[allow(clippy::large_enum_variant)]`
-help: consider boxing the large fields to reduce the total size of the enum
+help: consider boxing the large fields or introducing indirection in some other way to reduce the total size of the enum
    |
 LL -     B([u8; 501]),
 LL +     B(Box<[u8; 501]>),
diff --git a/src/tools/clippy/tests/ui/approx_const.rs b/src/tools/clippy/tests/ui/approx_const.rs
index 6461666be8f..fc493421a16 100644
--- a/src/tools/clippy/tests/ui/approx_const.rs
+++ b/src/tools/clippy/tests/ui/approx_const.rs
@@ -106,4 +106,19 @@ fn main() {
     //~^ approx_constant
 
     let no_tau = 6.3;
+
+    // issue #15194
+    #[allow(clippy::excessive_precision)]
+    let x: f64 = 3.1415926535897932384626433832;
+    //~^ approx_constant
+
+    #[allow(clippy::excessive_precision)]
+    let _: f64 = 003.14159265358979311599796346854418516159057617187500;
+    //~^ approx_constant
+
+    let almost_frac_1_sqrt_2 = 00.70711;
+    //~^ approx_constant
+
+    let almost_frac_1_sqrt_2 = 00.707_11;
+    //~^ approx_constant
 }
diff --git a/src/tools/clippy/tests/ui/approx_const.stderr b/src/tools/clippy/tests/ui/approx_const.stderr
index f7bda0468cb..32a3517ff2e 100644
--- a/src/tools/clippy/tests/ui/approx_const.stderr
+++ b/src/tools/clippy/tests/ui/approx_const.stderr
@@ -184,5 +184,37 @@ LL |     let almost_tau = 6.28;
    |
    = help: consider using the constant directly
 
-error: aborting due to 23 previous errors
+error: approximate value of `f{32, 64}::consts::PI` found
+  --> tests/ui/approx_const.rs:112:18
+   |
+LL |     let x: f64 = 3.1415926535897932384626433832;
+   |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |
+   = help: consider using the constant directly
+
+error: approximate value of `f{32, 64}::consts::PI` found
+  --> tests/ui/approx_const.rs:116:18
+   |
+LL |     let _: f64 = 003.14159265358979311599796346854418516159057617187500;
+   |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |
+   = help: consider using the constant directly
+
+error: approximate value of `f{32, 64}::consts::FRAC_1_SQRT_2` found
+  --> tests/ui/approx_const.rs:119:32
+   |
+LL |     let almost_frac_1_sqrt_2 = 00.70711;
+   |                                ^^^^^^^^
+   |
+   = help: consider using the constant directly
+
+error: approximate value of `f{32, 64}::consts::FRAC_1_SQRT_2` found
+  --> tests/ui/approx_const.rs:122:32
+   |
+LL |     let almost_frac_1_sqrt_2 = 00.707_11;
+   |                                ^^^^^^^^^
+   |
+   = help: consider using the constant directly
+
+error: aborting due to 27 previous errors
 
diff --git a/src/tools/clippy/tests/ui/arc_with_non_send_sync.stderr b/src/tools/clippy/tests/ui/arc_with_non_send_sync.stderr
index 5556b0df88c..ce726206b0c 100644
--- a/src/tools/clippy/tests/ui/arc_with_non_send_sync.stderr
+++ b/src/tools/clippy/tests/ui/arc_with_non_send_sync.stderr
@@ -5,7 +5,7 @@ LL |     let _ = Arc::new(RefCell::new(42));
    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
    = note: `Arc<RefCell<i32>>` is not `Send` and `Sync` as `RefCell<i32>` is not `Sync`
-   = help: if the `Arc` will not used be across threads replace it with an `Rc`
+   = help: if the `Arc` will not be used across threads replace it with an `Rc`
    = help: otherwise make `RefCell<i32>` `Send` and `Sync` or consider a wrapper type such as `Mutex`
    = note: `-D clippy::arc-with-non-send-sync` implied by `-D warnings`
    = help: to override `-D warnings` add `#[allow(clippy::arc_with_non_send_sync)]`
@@ -17,7 +17,7 @@ LL |     let _ = Arc::new(mutex.lock().unwrap());
    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
    = note: `Arc<MutexGuard<'_, i32>>` is not `Send` and `Sync` as `MutexGuard<'_, i32>` is not `Send`
-   = help: if the `Arc` will not used be across threads replace it with an `Rc`
+   = help: if the `Arc` will not be used across threads replace it with an `Rc`
    = help: otherwise make `MutexGuard<'_, i32>` `Send` and `Sync` or consider a wrapper type such as `Mutex`
 
 error: usage of an `Arc` that is not `Send` and `Sync`
@@ -27,7 +27,7 @@ LL |     let _ = Arc::new(&42 as *const i32);
    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
    = note: `Arc<*const i32>` is not `Send` and `Sync` as `*const i32` is neither `Send` nor `Sync`
-   = help: if the `Arc` will not used be across threads replace it with an `Rc`
+   = help: if the `Arc` will not be used across threads replace it with an `Rc`
    = help: otherwise make `*const i32` `Send` and `Sync` or consider a wrapper type such as `Mutex`
 
 error: aborting due to 3 previous errors
diff --git a/src/tools/clippy/tests/ui/arithmetic_side_effects.rs b/src/tools/clippy/tests/ui/arithmetic_side_effects.rs
index 21be2af201f..3245b2c983e 100644
--- a/src/tools/clippy/tests/ui/arithmetic_side_effects.rs
+++ b/src/tools/clippy/tests/ui/arithmetic_side_effects.rs
@@ -664,6 +664,20 @@ pub fn issue_12318() {
     //~^ arithmetic_side_effects
 }
 
+pub fn issue_15225() {
+    use core::num::{NonZero, NonZeroU8};
+
+    let one = const { NonZeroU8::new(1).unwrap() };
+    let _ = one.get() - 1;
+
+    let one: NonZero<u8> = const { NonZero::new(1).unwrap() };
+    let _ = one.get() - 1;
+
+    type AliasedType = u8;
+    let one: NonZero<AliasedType> = const { NonZero::new(1).unwrap() };
+    let _ = one.get() - 1;
+}
+
 pub fn explicit_methods() {
     use core::ops::Add;
     let one: i32 = 1;
diff --git a/src/tools/clippy/tests/ui/arithmetic_side_effects.stderr b/src/tools/clippy/tests/ui/arithmetic_side_effects.stderr
index e15fb612be5..4150493ba94 100644
--- a/src/tools/clippy/tests/ui/arithmetic_side_effects.stderr
+++ b/src/tools/clippy/tests/ui/arithmetic_side_effects.stderr
@@ -758,13 +758,13 @@ LL |     one.sub_assign(1);
    |     ^^^^^^^^^^^^^^^^^
 
 error: arithmetic operation that can potentially result in unexpected side-effects
-  --> tests/ui/arithmetic_side_effects.rs:670:5
+  --> tests/ui/arithmetic_side_effects.rs:684:5
    |
 LL |     one.add(&one);
    |     ^^^^^^^^^^^^^
 
 error: arithmetic operation that can potentially result in unexpected side-effects
-  --> tests/ui/arithmetic_side_effects.rs:672:5
+  --> tests/ui/arithmetic_side_effects.rs:686:5
    |
 LL |     Box::new(one).add(one);
    |     ^^^^^^^^^^^^^^^^^^^^^^
diff --git a/src/tools/clippy/tests/ui/assign_ops.fixed b/src/tools/clippy/tests/ui/assign_ops.fixed
index eee61f949e7..3754b9dfe74 100644
--- a/src/tools/clippy/tests/ui/assign_ops.fixed
+++ b/src/tools/clippy/tests/ui/assign_ops.fixed
@@ -84,6 +84,7 @@ mod issue14871 {
         const ONE: Self;
     }
 
+    #[rustfmt::skip] // rustfmt doesn't understand the order of pub const on traits (yet)
     pub const trait NumberConstants {
         fn constant(value: usize) -> Self;
     }
diff --git a/src/tools/clippy/tests/ui/assign_ops.rs b/src/tools/clippy/tests/ui/assign_ops.rs
index 13ffcee0a3c..0b878d4f490 100644
--- a/src/tools/clippy/tests/ui/assign_ops.rs
+++ b/src/tools/clippy/tests/ui/assign_ops.rs
@@ -84,6 +84,7 @@ mod issue14871 {
         const ONE: Self;
     }
 
+    #[rustfmt::skip] // rustfmt doesn't understand the order of pub const on traits (yet)
     pub const trait NumberConstants {
         fn constant(value: usize) -> Self;
     }
diff --git a/src/tools/clippy/tests/ui/auxiliary/external_item.rs b/src/tools/clippy/tests/ui/auxiliary/external_item.rs
index ca4bc369e44..621e18f5c01 100644
--- a/src/tools/clippy/tests/ui/auxiliary/external_item.rs
+++ b/src/tools/clippy/tests/ui/auxiliary/external_item.rs
@@ -4,4 +4,4 @@ impl _ExternalStruct {
     pub fn _foo(self) {}
 }
 
-pub fn _exernal_foo() {}
+pub fn _external_foo() {}
diff --git a/src/tools/clippy/tests/ui/auxiliary/proc_macro_derive.rs b/src/tools/clippy/tests/ui/auxiliary/proc_macro_derive.rs
index 5992d15935d..54650922871 100644
--- a/src/tools/clippy/tests/ui/auxiliary/proc_macro_derive.rs
+++ b/src/tools/clippy/tests/ui/auxiliary/proc_macro_derive.rs
@@ -16,7 +16,7 @@ pub fn derive(_: TokenStream) -> TokenStream {
     let output = quote! {
         // Should not trigger `useless_attribute`
         #[allow(dead_code)]
-        extern crate rustc_middle;
+        extern crate core;
     };
     output
 }
diff --git a/src/tools/clippy/tests/ui/cast_alignment.rs b/src/tools/clippy/tests/ui/cast_alignment.rs
index 5773ffddb91..ef667f5598a 100644
--- a/src/tools/clippy/tests/ui/cast_alignment.rs
+++ b/src/tools/clippy/tests/ui/cast_alignment.rs
@@ -1,6 +1,5 @@
 //! Test casts for alignment issues
 
-#![feature(rustc_private)]
 #![feature(core_intrinsics)]
 #![warn(clippy::cast_ptr_alignment)]
 #![allow(
@@ -10,8 +9,6 @@
     clippy::borrow_as_ptr
 )]
 
-extern crate libc;
-
 fn main() {
     /* These should be warned against */
 
diff --git a/src/tools/clippy/tests/ui/cast_alignment.stderr b/src/tools/clippy/tests/ui/cast_alignment.stderr
index 6d9a81f0ecf..ee4c3e9a77e 100644
--- a/src/tools/clippy/tests/ui/cast_alignment.stderr
+++ b/src/tools/clippy/tests/ui/cast_alignment.stderr
@@ -1,5 +1,5 @@
 error: casting from `*const u8` to a more-strictly-aligned pointer (`*const u16`) (1 < 2 bytes)
-  --> tests/ui/cast_alignment.rs:19:5
+  --> tests/ui/cast_alignment.rs:16:5
    |
 LL |     (&1u8 as *const u8) as *const u16;
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -8,19 +8,19 @@ LL |     (&1u8 as *const u8) as *const u16;
    = help: to override `-D warnings` add `#[allow(clippy::cast_ptr_alignment)]`
 
 error: casting from `*mut u8` to a more-strictly-aligned pointer (`*mut u16`) (1 < 2 bytes)
-  --> tests/ui/cast_alignment.rs:22:5
+  --> tests/ui/cast_alignment.rs:19:5
    |
 LL |     (&mut 1u8 as *mut u8) as *mut u16;
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 error: casting from `*const u8` to a more-strictly-aligned pointer (`*const u16`) (1 < 2 bytes)
-  --> tests/ui/cast_alignment.rs:26:5
+  --> tests/ui/cast_alignment.rs:23:5
    |
 LL |     (&1u8 as *const u8).cast::<u16>();
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 error: casting from `*mut u8` to a more-strictly-aligned pointer (`*mut u16`) (1 < 2 bytes)
-  --> tests/ui/cast_alignment.rs:29:5
+  --> tests/ui/cast_alignment.rs:26:5
    |
 LL |     (&mut 1u8 as *mut u8).cast::<u16>();
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
diff --git a/src/tools/clippy/tests/ui/checked_conversions.fixed b/src/tools/clippy/tests/ui/checked_conversions.fixed
index 279a5b6e1ff..6175275ef04 100644
--- a/src/tools/clippy/tests/ui/checked_conversions.fixed
+++ b/src/tools/clippy/tests/ui/checked_conversions.fixed
@@ -95,7 +95,7 @@ pub const fn issue_8898(i: u32) -> bool {
 #[clippy::msrv = "1.33"]
 fn msrv_1_33() {
     let value: i64 = 33;
-    let _ = value <= (u32::MAX as i64) && value >= 0;
+    let _ = value <= (u32::max_value() as i64) && value >= 0;
 }
 
 #[clippy::msrv = "1.34"]
diff --git a/src/tools/clippy/tests/ui/checked_conversions.rs b/src/tools/clippy/tests/ui/checked_conversions.rs
index c339bc674bb..9ed0e8f660d 100644
--- a/src/tools/clippy/tests/ui/checked_conversions.rs
+++ b/src/tools/clippy/tests/ui/checked_conversions.rs
@@ -95,13 +95,13 @@ pub const fn issue_8898(i: u32) -> bool {
 #[clippy::msrv = "1.33"]
 fn msrv_1_33() {
     let value: i64 = 33;
-    let _ = value <= (u32::MAX as i64) && value >= 0;
+    let _ = value <= (u32::max_value() as i64) && value >= 0;
 }
 
 #[clippy::msrv = "1.34"]
 fn msrv_1_34() {
     let value: i64 = 34;
-    let _ = value <= (u32::MAX as i64) && value >= 0;
+    let _ = value <= (u32::max_value() as i64) && value >= 0;
     //~^ checked_conversions
 }
 
diff --git a/src/tools/clippy/tests/ui/checked_conversions.stderr b/src/tools/clippy/tests/ui/checked_conversions.stderr
index 3841b9d5a4d..624876dacb2 100644
--- a/src/tools/clippy/tests/ui/checked_conversions.stderr
+++ b/src/tools/clippy/tests/ui/checked_conversions.stderr
@@ -100,8 +100,8 @@ LL |     let _ = value <= u16::MAX as u32 && value as i32 == 5;
 error: checked cast can be simplified
   --> tests/ui/checked_conversions.rs:104:13
    |
-LL |     let _ = value <= (u32::MAX as i64) && value >= 0;
-   |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u32::try_from(value).is_ok()`
+LL |     let _ = value <= (u32::max_value() as i64) && value >= 0;
+   |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u32::try_from(value).is_ok()`
 
 error: aborting due to 17 previous errors
 
diff --git a/src/tools/clippy/tests/ui/checked_unwrap/simple_conditionals.stderr b/src/tools/clippy/tests/ui/checked_unwrap/simple_conditionals.stderr
index a4bf0099244..26e360112b6 100644
--- a/src/tools/clippy/tests/ui/checked_unwrap/simple_conditionals.stderr
+++ b/src/tools/clippy/tests/ui/checked_unwrap/simple_conditionals.stderr
@@ -328,7 +328,7 @@ error: creating a shared reference to mutable static
 LL |         if X.is_some() {
    |            ^^^^^^^^^^^ shared reference to mutable static
    |
-   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/static-mut-references.html>
+   = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/static-mut-references.html>
    = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives
    = note: `#[deny(static_mut_refs)]` on by default
 
diff --git a/src/tools/clippy/tests/ui/expect.rs b/src/tools/clippy/tests/ui/expect.rs
index 8f7379f0021..1ab01ecfcfe 100644
--- a/src/tools/clippy/tests/ui/expect.rs
+++ b/src/tools/clippy/tests/ui/expect.rs
@@ -16,7 +16,26 @@ fn expect_result() {
     //~^ expect_used
 }
 
+#[allow(clippy::ok_expect)]
+#[allow(clippy::err_expect)]
+fn issue_15247() {
+    let x: Result<u8, u8> = Err(0);
+    x.ok().expect("Huh");
+    //~^ expect_used
+
+    { x.ok() }.expect("...");
+    //~^ expect_used
+
+    let y: Result<u8, u8> = Ok(0);
+    y.err().expect("Huh");
+    //~^ expect_used
+
+    { y.err() }.expect("...");
+    //~^ expect_used
+}
+
 fn main() {
     expect_option();
     expect_result();
+    issue_15247();
 }
diff --git a/src/tools/clippy/tests/ui/expect.stderr b/src/tools/clippy/tests/ui/expect.stderr
index 70cf3072003..353fb776531 100644
--- a/src/tools/clippy/tests/ui/expect.stderr
+++ b/src/tools/clippy/tests/ui/expect.stderr
@@ -24,5 +24,37 @@ LL |     let _ = res.expect_err("");
    |
    = note: if this value is an `Ok`, it will panic
 
-error: aborting due to 3 previous errors
+error: used `expect()` on an `Option` value
+  --> tests/ui/expect.rs:23:5
+   |
+LL |     x.ok().expect("Huh");
+   |     ^^^^^^^^^^^^^^^^^^^^
+   |
+   = note: if this value is `None`, it will panic
+
+error: used `expect()` on an `Option` value
+  --> tests/ui/expect.rs:26:5
+   |
+LL |     { x.ok() }.expect("...");
+   |     ^^^^^^^^^^^^^^^^^^^^^^^^
+   |
+   = note: if this value is `None`, it will panic
+
+error: used `expect()` on an `Option` value
+  --> tests/ui/expect.rs:30:5
+   |
+LL |     y.err().expect("Huh");
+   |     ^^^^^^^^^^^^^^^^^^^^^
+   |
+   = note: if this value is `None`, it will panic
+
+error: used `expect()` on an `Option` value
+  --> tests/ui/expect.rs:33:5
+   |
+LL |     { y.err() }.expect("...");
+   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
+   |
+   = note: if this value is `None`, it will panic
+
+error: aborting due to 7 previous errors
 
diff --git a/src/tools/clippy/tests/ui/expect_fun_call.fixed b/src/tools/clippy/tests/ui/expect_fun_call.fixed
index 73eaebf773c..b923521afde 100644
--- a/src/tools/clippy/tests/ui/expect_fun_call.fixed
+++ b/src/tools/clippy/tests/ui/expect_fun_call.fixed
@@ -90,17 +90,30 @@ fn main() {
             "foo"
         }
 
-        Some("foo").unwrap_or_else(|| { panic!("{}", get_string()) });
+        const fn const_evaluable() -> &'static str {
+            "foo"
+        }
+
+        Some("foo").unwrap_or_else(|| panic!("{}", get_string()));
         //~^ expect_fun_call
-        Some("foo").unwrap_or_else(|| { panic!("{}", get_string()) });
+        Some("foo").unwrap_or_else(|| panic!("{}", get_string()));
         //~^ expect_fun_call
-        Some("foo").unwrap_or_else(|| { panic!("{}", get_string()) });
+        Some("foo").unwrap_or_else(|| panic!("{}", get_string()));
         //~^ expect_fun_call
 
-        Some("foo").unwrap_or_else(|| { panic!("{}", get_static_str()) });
+        Some("foo").unwrap_or_else(|| panic!("{}", get_static_str()));
         //~^ expect_fun_call
-        Some("foo").unwrap_or_else(|| { panic!("{}", get_non_static_str(&0).to_string()) });
+        Some("foo").unwrap_or_else(|| panic!("{}", get_non_static_str(&0)));
+        //~^ expect_fun_call
+
+        Some("foo").unwrap_or_else(|| panic!("{}", const_evaluable()));
         //~^ expect_fun_call
+
+        const {
+            Some("foo").expect(const_evaluable());
+        }
+
+        Some("foo").expect(const { const_evaluable() });
     }
 
     //Issue #3839
@@ -122,4 +135,15 @@ fn main() {
     let format_capture_and_value: Option<i32> = None;
     format_capture_and_value.unwrap_or_else(|| panic!("{error_code}, {}", 1));
     //~^ expect_fun_call
+
+    // Issue #15056
+    let a = false;
+    Some(5).expect(if a { "a" } else { "b" });
+
+    let return_in_expect: Option<i32> = None;
+    return_in_expect.expect(if true {
+        "Error"
+    } else {
+        return;
+    });
 }
diff --git a/src/tools/clippy/tests/ui/expect_fun_call.rs b/src/tools/clippy/tests/ui/expect_fun_call.rs
index ecebc9ebfb6..bc58d24bc81 100644
--- a/src/tools/clippy/tests/ui/expect_fun_call.rs
+++ b/src/tools/clippy/tests/ui/expect_fun_call.rs
@@ -90,6 +90,10 @@ fn main() {
             "foo"
         }
 
+        const fn const_evaluable() -> &'static str {
+            "foo"
+        }
+
         Some("foo").expect(&get_string());
         //~^ expect_fun_call
         Some("foo").expect(get_string().as_ref());
@@ -101,6 +105,15 @@ fn main() {
         //~^ expect_fun_call
         Some("foo").expect(get_non_static_str(&0));
         //~^ expect_fun_call
+
+        Some("foo").expect(const_evaluable());
+        //~^ expect_fun_call
+
+        const {
+            Some("foo").expect(const_evaluable());
+        }
+
+        Some("foo").expect(const { const_evaluable() });
     }
 
     //Issue #3839
@@ -122,4 +135,15 @@ fn main() {
     let format_capture_and_value: Option<i32> = None;
     format_capture_and_value.expect(&format!("{error_code}, {}", 1));
     //~^ expect_fun_call
+
+    // Issue #15056
+    let a = false;
+    Some(5).expect(if a { "a" } else { "b" });
+
+    let return_in_expect: Option<i32> = None;
+    return_in_expect.expect(if true {
+        "Error"
+    } else {
+        return;
+    });
 }
diff --git a/src/tools/clippy/tests/ui/expect_fun_call.stderr b/src/tools/clippy/tests/ui/expect_fun_call.stderr
index 36713196cb9..0692ecb4862 100644
--- a/src/tools/clippy/tests/ui/expect_fun_call.stderr
+++ b/src/tools/clippy/tests/ui/expect_fun_call.stderr
@@ -38,58 +38,64 @@ LL |     Some("foo").expect(format!("{} {}", 1, 2).as_ref());
    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `unwrap_or_else(|| panic!("{} {}", 1, 2))`
 
 error: function call inside of `expect`
-  --> tests/ui/expect_fun_call.rs:93:21
+  --> tests/ui/expect_fun_call.rs:97:21
    |
 LL |         Some("foo").expect(&get_string());
-   |                     ^^^^^^^^^^^^^^^^^^^^^ help: try: `unwrap_or_else(|| { panic!("{}", get_string()) })`
+   |                     ^^^^^^^^^^^^^^^^^^^^^ help: try: `unwrap_or_else(|| panic!("{}", get_string()))`
 
 error: function call inside of `expect`
-  --> tests/ui/expect_fun_call.rs:95:21
+  --> tests/ui/expect_fun_call.rs:99:21
    |
 LL |         Some("foo").expect(get_string().as_ref());
-   |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `unwrap_or_else(|| { panic!("{}", get_string()) })`
+   |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `unwrap_or_else(|| panic!("{}", get_string()))`
 
 error: function call inside of `expect`
-  --> tests/ui/expect_fun_call.rs:97:21
+  --> tests/ui/expect_fun_call.rs:101:21
    |
 LL |         Some("foo").expect(get_string().as_str());
-   |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `unwrap_or_else(|| { panic!("{}", get_string()) })`
+   |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `unwrap_or_else(|| panic!("{}", get_string()))`
 
 error: function call inside of `expect`
-  --> tests/ui/expect_fun_call.rs:100:21
+  --> tests/ui/expect_fun_call.rs:104:21
    |
 LL |         Some("foo").expect(get_static_str());
-   |                     ^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `unwrap_or_else(|| { panic!("{}", get_static_str()) })`
+   |                     ^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `unwrap_or_else(|| panic!("{}", get_static_str()))`
 
 error: function call inside of `expect`
-  --> tests/ui/expect_fun_call.rs:102:21
+  --> tests/ui/expect_fun_call.rs:106:21
    |
 LL |         Some("foo").expect(get_non_static_str(&0));
-   |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `unwrap_or_else(|| { panic!("{}", get_non_static_str(&0).to_string()) })`
+   |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `unwrap_or_else(|| panic!("{}", get_non_static_str(&0)))`
+
+error: function call inside of `expect`
+  --> tests/ui/expect_fun_call.rs:109:21
+   |
+LL |         Some("foo").expect(const_evaluable());
+   |                     ^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `unwrap_or_else(|| panic!("{}", const_evaluable()))`
 
 error: function call inside of `expect`
-  --> tests/ui/expect_fun_call.rs:107:16
+  --> tests/ui/expect_fun_call.rs:120:16
    |
 LL |     Some(true).expect(&format!("key {}, {}", 1, 2));
    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `unwrap_or_else(|| panic!("key {}, {}", 1, 2))`
 
 error: function call inside of `expect`
-  --> tests/ui/expect_fun_call.rs:114:17
+  --> tests/ui/expect_fun_call.rs:127:17
    |
 LL |         opt_ref.expect(&format!("{:?}", opt_ref));
    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `unwrap_or_else(|| panic!("{:?}", opt_ref))`
 
 error: function call inside of `expect`
-  --> tests/ui/expect_fun_call.rs:119:20
+  --> tests/ui/expect_fun_call.rs:132:20
    |
 LL |     format_capture.expect(&format!("{error_code}"));
    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `unwrap_or_else(|| panic!("{error_code}"))`
 
 error: function call inside of `expect`
-  --> tests/ui/expect_fun_call.rs:123:30
+  --> tests/ui/expect_fun_call.rs:136:30
    |
 LL |     format_capture_and_value.expect(&format!("{error_code}, {}", 1));
    |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `unwrap_or_else(|| panic!("{error_code}, {}", 1))`
 
-error: aborting due to 15 previous errors
+error: aborting due to 16 previous errors
 
diff --git a/src/tools/clippy/tests/ui/filter_map_bool_then.fixed b/src/tools/clippy/tests/ui/filter_map_bool_then.fixed
index b3e112f19eb..d370b85a67e 100644
--- a/src/tools/clippy/tests/ui/filter_map_bool_then.fixed
+++ b/src/tools/clippy/tests/ui/filter_map_bool_then.fixed
@@ -89,3 +89,24 @@ fn issue11503() {
     let _: Vec<usize> = bools.iter().enumerate().filter(|&(i, b)| ****b).map(|(i, b)| i).collect();
     //~^ filter_map_bool_then
 }
+
+fn issue15047() {
+    #[derive(Clone, Copy)]
+    enum MyEnum {
+        A,
+        B,
+        C,
+    }
+
+    macro_rules! foo {
+        ($e:expr) => {
+            $e + 1
+        };
+    }
+
+    let x = 1;
+    let _ = [(MyEnum::A, "foo", 1i32)]
+        .iter()
+        .filter(|&(t, s, i)| matches!(t, MyEnum::A if s.starts_with("bar"))).map(|(t, s, i)| foo!(x));
+    //~^ filter_map_bool_then
+}
diff --git a/src/tools/clippy/tests/ui/filter_map_bool_then.rs b/src/tools/clippy/tests/ui/filter_map_bool_then.rs
index d996b3cb3c5..12295cc2482 100644
--- a/src/tools/clippy/tests/ui/filter_map_bool_then.rs
+++ b/src/tools/clippy/tests/ui/filter_map_bool_then.rs
@@ -89,3 +89,24 @@ fn issue11503() {
     let _: Vec<usize> = bools.iter().enumerate().filter_map(|(i, b)| b.then(|| i)).collect();
     //~^ filter_map_bool_then
 }
+
+fn issue15047() {
+    #[derive(Clone, Copy)]
+    enum MyEnum {
+        A,
+        B,
+        C,
+    }
+
+    macro_rules! foo {
+        ($e:expr) => {
+            $e + 1
+        };
+    }
+
+    let x = 1;
+    let _ = [(MyEnum::A, "foo", 1i32)]
+        .iter()
+        .filter_map(|(t, s, i)| matches!(t, MyEnum::A if s.starts_with("bar")).then(|| foo!(x)));
+    //~^ filter_map_bool_then
+}
diff --git a/src/tools/clippy/tests/ui/filter_map_bool_then.stderr b/src/tools/clippy/tests/ui/filter_map_bool_then.stderr
index aeb1baeb35e..edf6c655939 100644
--- a/src/tools/clippy/tests/ui/filter_map_bool_then.stderr
+++ b/src/tools/clippy/tests/ui/filter_map_bool_then.stderr
@@ -61,5 +61,11 @@ error: usage of `bool::then` in `filter_map`
 LL |     let _: Vec<usize> = bools.iter().enumerate().filter_map(|(i, b)| b.then(|| i)).collect();
    |                                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `filter` then `map` instead: `filter(|&(i, b)| ****b).map(|(i, b)| i)`
 
-error: aborting due to 10 previous errors
+error: usage of `bool::then` in `filter_map`
+  --> tests/ui/filter_map_bool_then.rs:110:10
+   |
+LL |         .filter_map(|(t, s, i)| matches!(t, MyEnum::A if s.starts_with("bar")).then(|| foo!(x)));
+   |          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `filter` then `map` instead: `filter(|&(t, s, i)| matches!(t, MyEnum::A if s.starts_with("bar"))).map(|(t, s, i)| foo!(x))`
+
+error: aborting due to 11 previous errors
 
diff --git a/src/tools/clippy/tests/ui/flat_map_identity.fixed b/src/tools/clippy/tests/ui/flat_map_identity.fixed
index f6206232612..06a3eee9d84 100644
--- a/src/tools/clippy/tests/ui/flat_map_identity.fixed
+++ b/src/tools/clippy/tests/ui/flat_map_identity.fixed
@@ -16,3 +16,16 @@ fn main() {
     let _ = iterator.flatten();
     //~^ flat_map_identity
 }
+
+fn issue15198() {
+    let x = [[1, 2], [3, 4]];
+    // don't lint: this is an `Iterator<Item = &[i32, i32]>`
+    // match ergonomics makes the binding patterns into references
+    // so that its type changes to `Iterator<Item = [&i32, &i32]>`
+    let _ = x.iter().flat_map(|[x, y]| [x, y]);
+    let _ = x.iter().flat_map(|x| [x[0]]);
+
+    // no match ergonomics for `[i32, i32]`
+    let _ = x.iter().copied().flatten();
+    //~^ flat_map_identity
+}
diff --git a/src/tools/clippy/tests/ui/flat_map_identity.rs b/src/tools/clippy/tests/ui/flat_map_identity.rs
index c59e749474e..1cab7d559d8 100644
--- a/src/tools/clippy/tests/ui/flat_map_identity.rs
+++ b/src/tools/clippy/tests/ui/flat_map_identity.rs
@@ -16,3 +16,16 @@ fn main() {
     let _ = iterator.flat_map(|x| return x);
     //~^ flat_map_identity
 }
+
+fn issue15198() {
+    let x = [[1, 2], [3, 4]];
+    // don't lint: this is an `Iterator<Item = &[i32, i32]>`
+    // match ergonomics makes the binding patterns into references
+    // so that its type changes to `Iterator<Item = [&i32, &i32]>`
+    let _ = x.iter().flat_map(|[x, y]| [x, y]);
+    let _ = x.iter().flat_map(|x| [x[0]]);
+
+    // no match ergonomics for `[i32, i32]`
+    let _ = x.iter().copied().flat_map(|[x, y]| [x, y]);
+    //~^ flat_map_identity
+}
diff --git a/src/tools/clippy/tests/ui/flat_map_identity.stderr b/src/tools/clippy/tests/ui/flat_map_identity.stderr
index 75137f5d9e5..18c863bf96d 100644
--- a/src/tools/clippy/tests/ui/flat_map_identity.stderr
+++ b/src/tools/clippy/tests/ui/flat_map_identity.stderr
@@ -19,5 +19,11 @@ error: use of `flat_map` with an identity function
 LL |     let _ = iterator.flat_map(|x| return x);
    |                      ^^^^^^^^^^^^^^^^^^^^^^ help: try: `flatten()`
 
-error: aborting due to 3 previous errors
+error: use of `flat_map` with an identity function
+  --> tests/ui/flat_map_identity.rs:29:31
+   |
+LL |     let _ = x.iter().copied().flat_map(|[x, y]| [x, y]);
+   |                               ^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `flatten()`
+
+error: aborting due to 4 previous errors
 
diff --git a/src/tools/clippy/tests/ui/if_then_some_else_none.fixed b/src/tools/clippy/tests/ui/if_then_some_else_none.fixed
index f774608712d..d14a805b666 100644
--- a/src/tools/clippy/tests/ui/if_then_some_else_none.fixed
+++ b/src/tools/clippy/tests/ui/if_then_some_else_none.fixed
@@ -122,3 +122,46 @@ const fn issue12103(x: u32) -> Option<u32> {
     // Should not issue an error in `const` context
     if x > 42 { Some(150) } else { None }
 }
+
+mod issue15257 {
+    struct Range {
+        start: u8,
+        end: u8,
+    }
+
+    fn can_be_safely_rewrite(rs: &[&Range]) -> Option<Vec<u8>> {
+        (rs.len() == 1 && rs[0].start == rs[0].end).then(|| vec![rs[0].start])
+    }
+
+    fn reborrow_as_ptr(i: *mut i32) -> Option<*const i32> {
+        let modulo = unsafe { *i % 2 };
+        (modulo == 0).then_some(i)
+    }
+
+    fn reborrow_as_fn_ptr(i: i32) {
+        fn do_something(fn_: Option<fn(i32)>) {
+            todo!()
+        }
+
+        fn item_fn(i: i32) {
+            todo!()
+        }
+
+        do_something((i % 2 == 0).then_some(item_fn));
+    }
+
+    fn reborrow_as_fn_unsafe(i: i32) {
+        fn do_something(fn_: Option<unsafe fn(i32)>) {
+            todo!()
+        }
+
+        fn item_fn(i: i32) {
+            todo!()
+        }
+
+        do_something((i % 2 == 0).then_some(item_fn));
+
+        let closure_fn = |i: i32| {};
+        do_something((i % 2 == 0).then_some(closure_fn));
+    }
+}
diff --git a/src/tools/clippy/tests/ui/if_then_some_else_none.rs b/src/tools/clippy/tests/ui/if_then_some_else_none.rs
index 8b8ff0a6ea0..bb0072f3157 100644
--- a/src/tools/clippy/tests/ui/if_then_some_else_none.rs
+++ b/src/tools/clippy/tests/ui/if_then_some_else_none.rs
@@ -143,3 +143,71 @@ const fn issue12103(x: u32) -> Option<u32> {
     // Should not issue an error in `const` context
     if x > 42 { Some(150) } else { None }
 }
+
+mod issue15257 {
+    struct Range {
+        start: u8,
+        end: u8,
+    }
+
+    fn can_be_safely_rewrite(rs: &[&Range]) -> Option<Vec<u8>> {
+        if rs.len() == 1 && rs[0].start == rs[0].end {
+            //~^ if_then_some_else_none
+            Some(vec![rs[0].start])
+        } else {
+            None
+        }
+    }
+
+    fn reborrow_as_ptr(i: *mut i32) -> Option<*const i32> {
+        let modulo = unsafe { *i % 2 };
+        if modulo == 0 {
+            //~^ if_then_some_else_none
+            Some(i)
+        } else {
+            None
+        }
+    }
+
+    fn reborrow_as_fn_ptr(i: i32) {
+        fn do_something(fn_: Option<fn(i32)>) {
+            todo!()
+        }
+
+        fn item_fn(i: i32) {
+            todo!()
+        }
+
+        do_something(if i % 2 == 0 {
+            //~^ if_then_some_else_none
+            Some(item_fn)
+        } else {
+            None
+        });
+    }
+
+    fn reborrow_as_fn_unsafe(i: i32) {
+        fn do_something(fn_: Option<unsafe fn(i32)>) {
+            todo!()
+        }
+
+        fn item_fn(i: i32) {
+            todo!()
+        }
+
+        do_something(if i % 2 == 0 {
+            //~^ if_then_some_else_none
+            Some(item_fn)
+        } else {
+            None
+        });
+
+        let closure_fn = |i: i32| {};
+        do_something(if i % 2 == 0 {
+            //~^ if_then_some_else_none
+            Some(closure_fn)
+        } else {
+            None
+        });
+    }
+}
diff --git a/src/tools/clippy/tests/ui/if_then_some_else_none.stderr b/src/tools/clippy/tests/ui/if_then_some_else_none.stderr
index 71285574ef2..c2e624a0a73 100644
--- a/src/tools/clippy/tests/ui/if_then_some_else_none.stderr
+++ b/src/tools/clippy/tests/ui/if_then_some_else_none.stderr
@@ -58,5 +58,63 @@ error: this could be simplified with `bool::then`
 LL |     if s == "1" { Some(true) } else { None }
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `(s == "1").then(|| true)`
 
-error: aborting due to 6 previous errors
+error: this could be simplified with `bool::then`
+  --> tests/ui/if_then_some_else_none.rs:154:9
+   |
+LL | /         if rs.len() == 1 && rs[0].start == rs[0].end {
+LL | |
+LL | |             Some(vec![rs[0].start])
+LL | |         } else {
+LL | |             None
+LL | |         }
+   | |_________^ help: try: `(rs.len() == 1 && rs[0].start == rs[0].end).then(|| vec![rs[0].start])`
+
+error: this could be simplified with `bool::then_some`
+  --> tests/ui/if_then_some_else_none.rs:164:9
+   |
+LL | /         if modulo == 0 {
+LL | |
+LL | |             Some(i)
+LL | |         } else {
+LL | |             None
+LL | |         }
+   | |_________^ help: try: `(modulo == 0).then_some(i)`
+
+error: this could be simplified with `bool::then_some`
+  --> tests/ui/if_then_some_else_none.rs:181:22
+   |
+LL |           do_something(if i % 2 == 0 {
+   |  ______________________^
+LL | |
+LL | |             Some(item_fn)
+LL | |         } else {
+LL | |             None
+LL | |         });
+   | |_________^ help: try: `(i % 2 == 0).then_some(item_fn)`
+
+error: this could be simplified with `bool::then_some`
+  --> tests/ui/if_then_some_else_none.rs:198:22
+   |
+LL |           do_something(if i % 2 == 0 {
+   |  ______________________^
+LL | |
+LL | |             Some(item_fn)
+LL | |         } else {
+LL | |             None
+LL | |         });
+   | |_________^ help: try: `(i % 2 == 0).then_some(item_fn)`
+
+error: this could be simplified with `bool::then_some`
+  --> tests/ui/if_then_some_else_none.rs:206:22
+   |
+LL |           do_something(if i % 2 == 0 {
+   |  ______________________^
+LL | |
+LL | |             Some(closure_fn)
+LL | |         } else {
+LL | |             None
+LL | |         });
+   | |_________^ help: try: `(i % 2 == 0).then_some(closure_fn)`
+
+error: aborting due to 11 previous errors
 
diff --git a/src/tools/clippy/tests/ui/if_then_some_else_none_unfixable.rs b/src/tools/clippy/tests/ui/if_then_some_else_none_unfixable.rs
new file mode 100644
index 00000000000..be04299a6ab
--- /dev/null
+++ b/src/tools/clippy/tests/ui/if_then_some_else_none_unfixable.rs
@@ -0,0 +1,35 @@
+#![warn(clippy::if_then_some_else_none)]
+#![allow(clippy::manual_is_multiple_of)]
+
+mod issue15257 {
+    use std::pin::Pin;
+
+    #[derive(Default)]
+    pub struct Foo {}
+    pub trait Bar {}
+    impl Bar for Foo {}
+
+    fn pointer_unsized_coercion(i: u32) -> Option<Box<dyn Bar>> {
+        if i % 2 == 0 {
+            //~^ if_then_some_else_none
+            Some(Box::new(Foo::default()))
+        } else {
+            None
+        }
+    }
+
+    fn reborrow_as_pin(i: Pin<&mut i32>) {
+        use std::ops::Rem;
+
+        fn do_something(i: Option<&i32>) {
+            todo!()
+        }
+
+        do_something(if i.rem(2) == 0 {
+            //~^ if_then_some_else_none
+            Some(&i)
+        } else {
+            None
+        });
+    }
+}
diff --git a/src/tools/clippy/tests/ui/if_then_some_else_none_unfixable.stderr b/src/tools/clippy/tests/ui/if_then_some_else_none_unfixable.stderr
new file mode 100644
index 00000000000..f77ce7910e7
--- /dev/null
+++ b/src/tools/clippy/tests/ui/if_then_some_else_none_unfixable.stderr
@@ -0,0 +1,28 @@
+error: this could be simplified with `bool::then`
+  --> tests/ui/if_then_some_else_none_unfixable.rs:13:9
+   |
+LL | /         if i % 2 == 0 {
+LL | |
+LL | |             Some(Box::new(Foo::default()))
+LL | |         } else {
+LL | |             None
+LL | |         }
+   | |_________^
+   |
+   = note: `-D clippy::if-then-some-else-none` implied by `-D warnings`
+   = help: to override `-D warnings` add `#[allow(clippy::if_then_some_else_none)]`
+
+error: this could be simplified with `bool::then`
+  --> tests/ui/if_then_some_else_none_unfixable.rs:28:22
+   |
+LL |           do_something(if i.rem(2) == 0 {
+   |  ______________________^
+LL | |
+LL | |             Some(&i)
+LL | |         } else {
+LL | |             None
+LL | |         });
+   | |_________^
+
+error: aborting due to 2 previous errors
+
diff --git a/src/tools/clippy/tests/ui/incompatible_msrv.rs b/src/tools/clippy/tests/ui/incompatible_msrv.rs
index 99101b2bb8f..f7f21e1850d 100644
--- a/src/tools/clippy/tests/ui/incompatible_msrv.rs
+++ b/src/tools/clippy/tests/ui/incompatible_msrv.rs
@@ -1,8 +1,10 @@
 #![warn(clippy::incompatible_msrv)]
 #![feature(custom_inner_attributes)]
-#![feature(panic_internals)]
+#![allow(stable_features)]
+#![feature(strict_provenance)] // For use in test
 #![clippy::msrv = "1.3.0"]
 
+use std::cell::Cell;
 use std::collections::HashMap;
 use std::collections::hash_map::Entry;
 use std::future::Future;
@@ -13,6 +15,8 @@ fn foo() {
     let mut map: HashMap<&str, u32> = HashMap::new();
     assert_eq!(map.entry("poneyland").key(), &"poneyland");
     //~^ incompatible_msrv
+    //~| NOTE: `-D clippy::incompatible-msrv` implied by `-D warnings`
+    //~| HELP: to override `-D warnings` add `#[allow(clippy::incompatible_msrv)]`
 
     if let Entry::Vacant(v) = map.entry("poneyland") {
         v.into_key();
@@ -23,6 +27,18 @@ fn foo() {
     //~^ incompatible_msrv
 }
 
+#[clippy::msrv = "1.2.0"]
+static NO_BODY_BAD_MSRV: Option<Duration> = None;
+//~^ incompatible_msrv
+
+static NO_BODY_GOOD_MSRV: Option<Duration> = None;
+
+#[clippy::msrv = "1.2.0"]
+fn bad_type_msrv() {
+    let _: Option<Duration> = None;
+    //~^ incompatible_msrv
+}
+
 #[test]
 fn test() {
     sleep(Duration::new(1, 0));
@@ -43,21 +59,22 @@ fn core_special_treatment(p: bool) {
 
     // But still lint code calling `core` functions directly
     if p {
-        core::panicking::panic("foo");
-        //~^ ERROR: is `1.3.0` but this item is stable since `1.6.0`
+        let _ = core::iter::once_with(|| 0);
+        //~^ incompatible_msrv
     }
 
     // Lint code calling `core` from non-`core` macros
     macro_rules! my_panic {
         ($msg:expr) => {
-            core::panicking::panic($msg)
-        }; //~^ ERROR: is `1.3.0` but this item is stable since `1.6.0`
+            let _ = core::iter::once_with(|| $msg);
+            //~^ incompatible_msrv
+        };
     }
     my_panic!("foo");
 
     // Lint even when the macro comes from `core` and calls `core` functions
-    assert!(core::panicking::panic("out of luck"));
-    //~^ ERROR: is `1.3.0` but this item is stable since `1.6.0`
+    assert!(core::iter::once_with(|| 0).next().is_some());
+    //~^ incompatible_msrv
 }
 
 #[clippy::msrv = "1.26.0"]
@@ -70,7 +87,85 @@ fn lang_items() {
 #[clippy::msrv = "1.80.0"]
 fn issue14212() {
     let _ = std::iter::repeat_n((), 5);
-    //~^ ERROR: is `1.80.0` but this item is stable since `1.82.0`
+    //~^ incompatible_msrv
+}
+
+#[clippy::msrv = "1.0.0"]
+fn cstr_and_cstring_ok() {
+    let _: Option<&'static std::ffi::CStr> = None;
+    let _: Option<std::ffi::CString> = None;
+}
+
+fn local_msrv_change_suggestion() {
+    let _ = std::iter::repeat_n((), 5);
+    //~^ incompatible_msrv
+
+    #[cfg(any(test, not(test)))]
+    {
+        let _ = std::iter::repeat_n((), 5);
+        //~^ incompatible_msrv
+        //~| NOTE: you may want to conditionally increase the MSRV
+
+        // Emit the additional note only once
+        let _ = std::iter::repeat_n((), 5);
+        //~^ incompatible_msrv
+    }
+}
+
+#[clippy::msrv = "1.78.0"]
+fn feature_enable_14425(ptr: *const u8) -> usize {
+    // Do not warn, because it is enabled through a feature even though
+    // it is stabilized only since Rust 1.84.0.
+    let r = ptr.addr();
+
+    // Warn about this which has been introduced in the same Rust version
+    // but is not allowed through a feature.
+    r.isqrt()
+    //~^ incompatible_msrv
+}
+
+fn non_fn_items() {
+    let _ = std::io::ErrorKind::CrossesDevices;
+    //~^ incompatible_msrv
+}
+
+#[clippy::msrv = "1.87.0"]
+fn msrv_non_ok_in_const() {
+    {
+        let c = Cell::new(42);
+        _ = c.get();
+    }
+    const {
+        let c = Cell::new(42);
+        _ = c.get();
+        //~^ incompatible_msrv
+    }
+}
+
+#[clippy::msrv = "1.88.0"]
+fn msrv_ok_in_const() {
+    {
+        let c = Cell::new(42);
+        _ = c.get();
+    }
+    const {
+        let c = Cell::new(42);
+        _ = c.get();
+    }
+}
+
+#[clippy::msrv = "1.86.0"]
+fn enum_variant_not_ok() {
+    let _ = std::io::ErrorKind::InvalidFilename;
+    //~^ incompatible_msrv
+    let _ = const { std::io::ErrorKind::InvalidFilename };
+    //~^ incompatible_msrv
+}
+
+#[clippy::msrv = "1.87.0"]
+fn enum_variant_ok() {
+    let _ = std::io::ErrorKind::InvalidFilename;
+    let _ = const { std::io::ErrorKind::InvalidFilename };
 }
 
 fn main() {}
diff --git a/src/tools/clippy/tests/ui/incompatible_msrv.stderr b/src/tools/clippy/tests/ui/incompatible_msrv.stderr
index 5ea2bb9cc58..e42360d296f 100644
--- a/src/tools/clippy/tests/ui/incompatible_msrv.stderr
+++ b/src/tools/clippy/tests/ui/incompatible_msrv.stderr
@@ -1,5 +1,5 @@
 error: current MSRV (Minimum Supported Rust Version) is `1.3.0` but this item is stable since `1.10.0`
-  --> tests/ui/incompatible_msrv.rs:14:39
+  --> tests/ui/incompatible_msrv.rs:16:39
    |
 LL |     assert_eq!(map.entry("poneyland").key(), &"poneyland");
    |                                       ^^^^^
@@ -8,45 +8,107 @@ LL |     assert_eq!(map.entry("poneyland").key(), &"poneyland");
    = help: to override `-D warnings` add `#[allow(clippy::incompatible_msrv)]`
 
 error: current MSRV (Minimum Supported Rust Version) is `1.3.0` but this item is stable since `1.12.0`
-  --> tests/ui/incompatible_msrv.rs:18:11
+  --> tests/ui/incompatible_msrv.rs:22:11
    |
 LL |         v.into_key();
    |           ^^^^^^^^^^
 
 error: current MSRV (Minimum Supported Rust Version) is `1.3.0` but this item is stable since `1.4.0`
-  --> tests/ui/incompatible_msrv.rs:22:5
+  --> tests/ui/incompatible_msrv.rs:26:5
    |
 LL |     sleep(Duration::new(1, 0));
    |     ^^^^^
 
-error: current MSRV (Minimum Supported Rust Version) is `1.3.0` but this item is stable since `1.6.0`
-  --> tests/ui/incompatible_msrv.rs:46:9
+error: current MSRV (Minimum Supported Rust Version) is `1.2.0` but this item is stable since `1.3.0`
+  --> tests/ui/incompatible_msrv.rs:31:33
    |
-LL |         core::panicking::panic("foo");
-   |         ^^^^^^^^^^^^^^^^^^^^^^
+LL | static NO_BODY_BAD_MSRV: Option<Duration> = None;
+   |                                 ^^^^^^^^
 
-error: current MSRV (Minimum Supported Rust Version) is `1.3.0` but this item is stable since `1.6.0`
-  --> tests/ui/incompatible_msrv.rs:53:13
+error: current MSRV (Minimum Supported Rust Version) is `1.2.0` but this item is stable since `1.3.0`
+  --> tests/ui/incompatible_msrv.rs:38:19
    |
-LL |             core::panicking::panic($msg)
-   |             ^^^^^^^^^^^^^^^^^^^^^^
+LL |     let _: Option<Duration> = None;
+   |                   ^^^^^^^^
+
+error: current MSRV (Minimum Supported Rust Version) is `1.3.0` but this item is stable since `1.43.0`
+  --> tests/ui/incompatible_msrv.rs:62:17
+   |
+LL |         let _ = core::iter::once_with(|| 0);
+   |                 ^^^^^^^^^^^^^^^^^^^^^
+
+error: current MSRV (Minimum Supported Rust Version) is `1.3.0` but this item is stable since `1.43.0`
+  --> tests/ui/incompatible_msrv.rs:69:21
+   |
+LL |             let _ = core::iter::once_with(|| $msg);
+   |                     ^^^^^^^^^^^^^^^^^^^^^
 ...
 LL |     my_panic!("foo");
    |     ---------------- in this macro invocation
    |
    = note: this error originates in the macro `my_panic` (in Nightly builds, run with -Z macro-backtrace for more info)
 
-error: current MSRV (Minimum Supported Rust Version) is `1.3.0` but this item is stable since `1.6.0`
-  --> tests/ui/incompatible_msrv.rs:59:13
+error: current MSRV (Minimum Supported Rust Version) is `1.3.0` but this item is stable since `1.43.0`
+  --> tests/ui/incompatible_msrv.rs:76:13
    |
-LL |     assert!(core::panicking::panic("out of luck"));
-   |             ^^^^^^^^^^^^^^^^^^^^^^
+LL |     assert!(core::iter::once_with(|| 0).next().is_some());
+   |             ^^^^^^^^^^^^^^^^^^^^^
 
 error: current MSRV (Minimum Supported Rust Version) is `1.80.0` but this item is stable since `1.82.0`
-  --> tests/ui/incompatible_msrv.rs:72:13
+  --> tests/ui/incompatible_msrv.rs:89:13
+   |
+LL |     let _ = std::iter::repeat_n((), 5);
+   |             ^^^^^^^^^^^^^^^^^^^
+
+error: current MSRV (Minimum Supported Rust Version) is `1.3.0` but this item is stable since `1.82.0`
+  --> tests/ui/incompatible_msrv.rs:100:13
    |
 LL |     let _ = std::iter::repeat_n((), 5);
    |             ^^^^^^^^^^^^^^^^^^^
 
-error: aborting due to 7 previous errors
+error: current MSRV (Minimum Supported Rust Version) is `1.3.0` but this item is stable since `1.82.0`
+  --> tests/ui/incompatible_msrv.rs:105:17
+   |
+LL |         let _ = std::iter::repeat_n((), 5);
+   |                 ^^^^^^^^^^^^^^^^^^^
+   |
+   = note: you may want to conditionally increase the MSRV considered by Clippy using the `clippy::msrv` attribute
+
+error: current MSRV (Minimum Supported Rust Version) is `1.3.0` but this item is stable since `1.82.0`
+  --> tests/ui/incompatible_msrv.rs:110:17
+   |
+LL |         let _ = std::iter::repeat_n((), 5);
+   |                 ^^^^^^^^^^^^^^^^^^^
+
+error: current MSRV (Minimum Supported Rust Version) is `1.78.0` but this item is stable since `1.84.0`
+  --> tests/ui/incompatible_msrv.rs:123:7
+   |
+LL |     r.isqrt()
+   |       ^^^^^^^
+
+error: current MSRV (Minimum Supported Rust Version) is `1.3.0` but this item is stable since `1.85.0`
+  --> tests/ui/incompatible_msrv.rs:128:13
+   |
+LL |     let _ = std::io::ErrorKind::CrossesDevices;
+   |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+error: current MSRV (Minimum Supported Rust Version) is `1.87.0` but this item is stable in a `const` context since `1.88.0`
+  --> tests/ui/incompatible_msrv.rs:140:15
+   |
+LL |         _ = c.get();
+   |               ^^^^^
+
+error: current MSRV (Minimum Supported Rust Version) is `1.86.0` but this item is stable since `1.87.0`
+  --> tests/ui/incompatible_msrv.rs:159:13
+   |
+LL |     let _ = std::io::ErrorKind::InvalidFilename;
+   |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+error: current MSRV (Minimum Supported Rust Version) is `1.86.0` but this item is stable since `1.87.0`
+  --> tests/ui/incompatible_msrv.rs:161:21
+   |
+LL |     let _ = const { std::io::ErrorKind::InvalidFilename };
+   |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+error: aborting due to 17 previous errors
 
diff --git a/src/tools/clippy/tests/ui/iter_over_hash_type.rs b/src/tools/clippy/tests/ui/iter_over_hash_type.rs
index 914cc9df0de..9a3e7033cd8 100644
--- a/src/tools/clippy/tests/ui/iter_over_hash_type.rs
+++ b/src/tools/clippy/tests/ui/iter_over_hash_type.rs
@@ -3,15 +3,18 @@
 #![warn(clippy::iter_over_hash_type)]
 use std::collections::{HashMap, HashSet};
 
-extern crate rustc_data_structures;
-
 extern crate proc_macros;
 
+// Ensure it also works via type aliases (this isn't really the Fx hasher but that does not matter).
+type FxBuildHasher = std::collections::hash_map::RandomState;
+type FxHashMap<K, V> = HashMap<K, V, FxBuildHasher>;
+type FxHashSet<K> = HashSet<K, FxBuildHasher>;
+
 fn main() {
     let mut hash_set = HashSet::<i32>::new();
     let mut hash_map = HashMap::<i32, i32>::new();
-    let mut fx_hash_map = rustc_data_structures::fx::FxHashMap::<i32, i32>::default();
-    let mut fx_hash_set = rustc_data_structures::fx::FxHashMap::<i32, i32>::default();
+    let mut fx_hash_map = FxHashMap::<i32, i32>::default();
+    let mut fx_hash_set = FxHashSet::<i32>::default();
     let vec = Vec::<i32>::new();
 
     // test hashset
diff --git a/src/tools/clippy/tests/ui/iter_over_hash_type.stderr b/src/tools/clippy/tests/ui/iter_over_hash_type.stderr
index 1bc6f4588d4..3356186547d 100644
--- a/src/tools/clippy/tests/ui/iter_over_hash_type.stderr
+++ b/src/tools/clippy/tests/ui/iter_over_hash_type.stderr
@@ -1,5 +1,5 @@
 error: iteration over unordered hash-based type
-  --> tests/ui/iter_over_hash_type.rs:18:5
+  --> tests/ui/iter_over_hash_type.rs:21:5
    |
 LL | /     for x in &hash_set {
 LL | |
@@ -11,7 +11,7 @@ LL | |     }
    = help: to override `-D warnings` add `#[allow(clippy::iter_over_hash_type)]`
 
 error: iteration over unordered hash-based type
-  --> tests/ui/iter_over_hash_type.rs:22:5
+  --> tests/ui/iter_over_hash_type.rs:25:5
    |
 LL | /     for x in hash_set.iter() {
 LL | |
@@ -20,7 +20,7 @@ LL | |     }
    | |_____^
 
 error: iteration over unordered hash-based type
-  --> tests/ui/iter_over_hash_type.rs:26:5
+  --> tests/ui/iter_over_hash_type.rs:29:5
    |
 LL | /     for x in hash_set.clone() {
 LL | |
@@ -29,7 +29,7 @@ LL | |     }
    | |_____^
 
 error: iteration over unordered hash-based type
-  --> tests/ui/iter_over_hash_type.rs:30:5
+  --> tests/ui/iter_over_hash_type.rs:33:5
    |
 LL | /     for x in hash_set.drain() {
 LL | |
@@ -38,7 +38,7 @@ LL | |     }
    | |_____^
 
 error: iteration over unordered hash-based type
-  --> tests/ui/iter_over_hash_type.rs:36:5
+  --> tests/ui/iter_over_hash_type.rs:39:5
    |
 LL | /     for (x, y) in &hash_map {
 LL | |
@@ -47,7 +47,7 @@ LL | |     }
    | |_____^
 
 error: iteration over unordered hash-based type
-  --> tests/ui/iter_over_hash_type.rs:40:5
+  --> tests/ui/iter_over_hash_type.rs:43:5
    |
 LL | /     for x in hash_map.keys() {
 LL | |
@@ -56,7 +56,7 @@ LL | |     }
    | |_____^
 
 error: iteration over unordered hash-based type
-  --> tests/ui/iter_over_hash_type.rs:44:5
+  --> tests/ui/iter_over_hash_type.rs:47:5
    |
 LL | /     for x in hash_map.values() {
 LL | |
@@ -65,7 +65,7 @@ LL | |     }
    | |_____^
 
 error: iteration over unordered hash-based type
-  --> tests/ui/iter_over_hash_type.rs:48:5
+  --> tests/ui/iter_over_hash_type.rs:51:5
    |
 LL | /     for x in hash_map.values_mut() {
 LL | |
@@ -74,7 +74,7 @@ LL | |     }
    | |_____^
 
 error: iteration over unordered hash-based type
-  --> tests/ui/iter_over_hash_type.rs:52:5
+  --> tests/ui/iter_over_hash_type.rs:55:5
    |
 LL | /     for x in hash_map.iter() {
 LL | |
@@ -83,7 +83,7 @@ LL | |     }
    | |_____^
 
 error: iteration over unordered hash-based type
-  --> tests/ui/iter_over_hash_type.rs:56:5
+  --> tests/ui/iter_over_hash_type.rs:59:5
    |
 LL | /     for x in hash_map.clone() {
 LL | |
@@ -92,7 +92,7 @@ LL | |     }
    | |_____^
 
 error: iteration over unordered hash-based type
-  --> tests/ui/iter_over_hash_type.rs:60:5
+  --> tests/ui/iter_over_hash_type.rs:63:5
    |
 LL | /     for x in hash_map.drain() {
 LL | |
@@ -101,7 +101,7 @@ LL | |     }
    | |_____^
 
 error: iteration over unordered hash-based type
-  --> tests/ui/iter_over_hash_type.rs:66:5
+  --> tests/ui/iter_over_hash_type.rs:69:5
    |
 LL | /     for x in fx_hash_set {
 LL | |
@@ -110,7 +110,7 @@ LL | |     }
    | |_____^
 
 error: iteration over unordered hash-based type
-  --> tests/ui/iter_over_hash_type.rs:70:5
+  --> tests/ui/iter_over_hash_type.rs:73:5
    |
 LL | /     for x in fx_hash_map {
 LL | |
diff --git a/src/tools/clippy/tests/ui/large_enum_variant.32bit.stderr b/src/tools/clippy/tests/ui/large_enum_variant.32bit.stderr
index 80ca5daa1d5..ac1ed27a6b3 100644
--- a/src/tools/clippy/tests/ui/large_enum_variant.32bit.stderr
+++ b/src/tools/clippy/tests/ui/large_enum_variant.32bit.stderr
@@ -12,7 +12,7 @@ LL | | }
    |
    = note: `-D clippy::large-enum-variant` implied by `-D warnings`
    = help: to override `-D warnings` add `#[allow(clippy::large_enum_variant)]`
-help: consider boxing the large fields to reduce the total size of the enum
+help: consider boxing the large fields or introducing indirection in some other way to reduce the total size of the enum
    |
 LL -     B([i32; 8000]),
 LL +     B(Box<[i32; 8000]>),
@@ -30,7 +30,7 @@ LL | |     ContainingLargeEnum(LargeEnum),
 LL | | }
    | |_^ the entire enum is at least 32004 bytes
    |
-help: consider boxing the large fields to reduce the total size of the enum
+help: consider boxing the large fields or introducing indirection in some other way to reduce the total size of the enum
    |
 LL -     ContainingLargeEnum(LargeEnum),
 LL +     ContainingLargeEnum(Box<LargeEnum>),
@@ -49,7 +49,7 @@ LL | |     StructLikeLittle { x: i32, y: i32 },
 LL | | }
    | |_^ the entire enum is at least 70008 bytes
    |
-help: consider boxing the large fields to reduce the total size of the enum
+help: consider boxing the large fields or introducing indirection in some other way to reduce the total size of the enum
    |
 LL -     ContainingMoreThanOneField(i32, [i32; 8000], [i32; 9500]),
 LL +     ContainingMoreThanOneField(i32, Box<[i32; 8000]>, Box<[i32; 9500]>),
@@ -67,7 +67,7 @@ LL | |     StructLikeLarge { x: [i32; 8000], y: i32 },
 LL | | }
    | |_^ the entire enum is at least 32008 bytes
    |
-help: consider boxing the large fields to reduce the total size of the enum
+help: consider boxing the large fields or introducing indirection in some other way to reduce the total size of the enum
    |
 LL -     StructLikeLarge { x: [i32; 8000], y: i32 },
 LL +     StructLikeLarge { x: Box<[i32; 8000]>, y: i32 },
@@ -85,7 +85,7 @@ LL | |     StructLikeLarge2 { x: [i32; 8000] },
 LL | | }
    | |_^ the entire enum is at least 32004 bytes
    |
-help: consider boxing the large fields to reduce the total size of the enum
+help: consider boxing the large fields or introducing indirection in some other way to reduce the total size of the enum
    |
 LL -     StructLikeLarge2 { x: [i32; 8000] },
 LL +     StructLikeLarge2 { x: Box<[i32; 8000]> },
@@ -104,7 +104,7 @@ LL | |     C([u8; 200]),
 LL | | }
    | |_^ the entire enum is at least 1256 bytes
    |
-help: consider boxing the large fields to reduce the total size of the enum
+help: consider boxing the large fields or introducing indirection in some other way to reduce the total size of the enum
    |
 LL -     B([u8; 1255]),
 LL +     B(Box<[u8; 1255]>),
@@ -122,7 +122,7 @@ LL | |     ContainingMoreThanOneField([i32; 8000], [i32; 2], [i32; 9500], [i32;
 LL | | }
    | |_^ the entire enum is at least 70132 bytes
    |
-help: consider boxing the large fields to reduce the total size of the enum
+help: consider boxing the large fields or introducing indirection in some other way to reduce the total size of the enum
    |
 LL -     ContainingMoreThanOneField([i32; 8000], [i32; 2], [i32; 9500], [i32; 30]),
 LL +     ContainingMoreThanOneField(Box<[i32; 8000]>, [i32; 2], Box<[i32; 9500]>, [i32; 30]),
@@ -140,7 +140,7 @@ LL | |     B(Struct2),
 LL | | }
    | |_^ the entire enum is at least 32004 bytes
    |
-help: consider boxing the large fields to reduce the total size of the enum
+help: consider boxing the large fields or introducing indirection in some other way to reduce the total size of the enum
    |
 LL -     B(Struct2),
 LL +     B(Box<Struct2>),
@@ -158,7 +158,7 @@ LL | |     B(Struct2),
 LL | | }
    | |_^ the entire enum is at least 32000 bytes
    |
-help: consider boxing the large fields to reduce the total size of the enum
+help: consider boxing the large fields or introducing indirection in some other way to reduce the total size of the enum
    |
 LL -     B(Struct2),
 LL +     B(Box<Struct2>),
@@ -176,7 +176,7 @@ LL | |     B(Struct2),
 LL | | }
    | |_^ the entire enum is at least 32000 bytes
    |
-help: consider boxing the large fields to reduce the total size of the enum
+help: consider boxing the large fields or introducing indirection in some other way to reduce the total size of the enum
    |
 LL -     B(Struct2),
 LL +     B(Box<Struct2>),
@@ -199,7 +199,7 @@ note: boxing a variant would require the type no longer be `Copy`
    |
 LL | enum CopyableLargeEnum {
    |      ^^^^^^^^^^^^^^^^^
-help: consider boxing the large fields to reduce the total size of the enum
+help: consider boxing the large fields or introducing indirection in some other way to reduce the total size of the enum
   --> tests/ui/large_enum_variant.rs:118:5
    |
 LL |     B([u64; 8000]),
@@ -222,7 +222,7 @@ note: boxing a variant would require the type no longer be `Copy`
    |
 LL | enum ManuallyCopyLargeEnum {
    |      ^^^^^^^^^^^^^^^^^^^^^
-help: consider boxing the large fields to reduce the total size of the enum
+help: consider boxing the large fields or introducing indirection in some other way to reduce the total size of the enum
   --> tests/ui/large_enum_variant.rs:124:5
    |
 LL |     B([u64; 8000]),
@@ -245,7 +245,7 @@ note: boxing a variant would require the type no longer be `Copy`
    |
 LL | enum SomeGenericPossiblyCopyEnum<T> {
    |      ^^^^^^^^^^^^^^^^^^^^^^^^^^^
-help: consider boxing the large fields to reduce the total size of the enum
+help: consider boxing the large fields or introducing indirection in some other way to reduce the total size of the enum
   --> tests/ui/large_enum_variant.rs:138:5
    |
 LL |     B([u64; 4000]),
@@ -263,7 +263,7 @@ LL | |     Large((T, [u8; 512])),
 LL | | }
    | |_^ the entire enum is at least 512 bytes
    |
-help: consider boxing the large fields to reduce the total size of the enum
+help: consider boxing the large fields or introducing indirection in some other way to reduce the total size of the enum
    |
 LL -     Large((T, [u8; 512])),
 LL +     Large(Box<(T, [u8; 512])>),
@@ -281,7 +281,7 @@ LL | |     Small(u8),
 LL | | }
    | |_^ the entire enum is at least 516 bytes
    |
-help: consider boxing the large fields to reduce the total size of the enum
+help: consider boxing the large fields or introducing indirection in some other way to reduce the total size of the enum
    |
 LL -     Large([Foo<u64>; 64]),
 LL +     Large(Box<[Foo<u64>; 64]>),
@@ -299,7 +299,7 @@ LL | |     Error(PossiblyLargeEnumWithConst<256>),
 LL | | }
    | |_^ the entire enum is at least 514 bytes
    |
-help: consider boxing the large fields to reduce the total size of the enum
+help: consider boxing the large fields or introducing indirection in some other way to reduce the total size of the enum
    |
 LL -     Error(PossiblyLargeEnumWithConst<256>),
 LL +     Error(Box<PossiblyLargeEnumWithConst<256>>),
@@ -317,7 +317,7 @@ LL | |     Recursive(Box<WithRecursion>),
 LL | | }
    | |_^ the entire enum is at least 516 bytes
    |
-help: consider boxing the large fields to reduce the total size of the enum
+help: consider boxing the large fields or introducing indirection in some other way to reduce the total size of the enum
    |
 LL -     Large([u64; 64]),
 LL +     Large(Box<[u64; 64]>),
@@ -335,7 +335,7 @@ LL | |     Error(WithRecursionAndGenerics<u64>),
 LL | | }
    | |_^ the entire enum is at least 516 bytes
    |
-help: consider boxing the large fields to reduce the total size of the enum
+help: consider boxing the large fields or introducing indirection in some other way to reduce the total size of the enum
    |
 LL -     Error(WithRecursionAndGenerics<u64>),
 LL +     Error(Box<WithRecursionAndGenerics<u64>>),
diff --git a/src/tools/clippy/tests/ui/large_enum_variant.64bit.stderr b/src/tools/clippy/tests/ui/large_enum_variant.64bit.stderr
index 559bdf2a2f5..d8199f9090f 100644
--- a/src/tools/clippy/tests/ui/large_enum_variant.64bit.stderr
+++ b/src/tools/clippy/tests/ui/large_enum_variant.64bit.stderr
@@ -12,7 +12,7 @@ LL | | }
    |
    = note: `-D clippy::large-enum-variant` implied by `-D warnings`
    = help: to override `-D warnings` add `#[allow(clippy::large_enum_variant)]`
-help: consider boxing the large fields to reduce the total size of the enum
+help: consider boxing the large fields or introducing indirection in some other way to reduce the total size of the enum
    |
 LL -     B([i32; 8000]),
 LL +     B(Box<[i32; 8000]>),
@@ -30,7 +30,7 @@ LL | |     ContainingLargeEnum(LargeEnum),
 LL | | }
    | |_^ the entire enum is at least 32004 bytes
    |
-help: consider boxing the large fields to reduce the total size of the enum
+help: consider boxing the large fields or introducing indirection in some other way to reduce the total size of the enum
    |
 LL -     ContainingLargeEnum(LargeEnum),
 LL +     ContainingLargeEnum(Box<LargeEnum>),
@@ -49,7 +49,7 @@ LL | |     StructLikeLittle { x: i32, y: i32 },
 LL | | }
    | |_^ the entire enum is at least 70008 bytes
    |
-help: consider boxing the large fields to reduce the total size of the enum
+help: consider boxing the large fields or introducing indirection in some other way to reduce the total size of the enum
    |
 LL -     ContainingMoreThanOneField(i32, [i32; 8000], [i32; 9500]),
 LL +     ContainingMoreThanOneField(i32, Box<[i32; 8000]>, Box<[i32; 9500]>),
@@ -67,7 +67,7 @@ LL | |     StructLikeLarge { x: [i32; 8000], y: i32 },
 LL | | }
    | |_^ the entire enum is at least 32008 bytes
    |
-help: consider boxing the large fields to reduce the total size of the enum
+help: consider boxing the large fields or introducing indirection in some other way to reduce the total size of the enum
    |
 LL -     StructLikeLarge { x: [i32; 8000], y: i32 },
 LL +     StructLikeLarge { x: Box<[i32; 8000]>, y: i32 },
@@ -85,7 +85,7 @@ LL | |     StructLikeLarge2 { x: [i32; 8000] },
 LL | | }
    | |_^ the entire enum is at least 32004 bytes
    |
-help: consider boxing the large fields to reduce the total size of the enum
+help: consider boxing the large fields or introducing indirection in some other way to reduce the total size of the enum
    |
 LL -     StructLikeLarge2 { x: [i32; 8000] },
 LL +     StructLikeLarge2 { x: Box<[i32; 8000]> },
@@ -104,7 +104,7 @@ LL | |     C([u8; 200]),
 LL | | }
    | |_^ the entire enum is at least 1256 bytes
    |
-help: consider boxing the large fields to reduce the total size of the enum
+help: consider boxing the large fields or introducing indirection in some other way to reduce the total size of the enum
    |
 LL -     B([u8; 1255]),
 LL +     B(Box<[u8; 1255]>),
@@ -122,7 +122,7 @@ LL | |     ContainingMoreThanOneField([i32; 8000], [i32; 2], [i32; 9500], [i32;
 LL | | }
    | |_^ the entire enum is at least 70132 bytes
    |
-help: consider boxing the large fields to reduce the total size of the enum
+help: consider boxing the large fields or introducing indirection in some other way to reduce the total size of the enum
    |
 LL -     ContainingMoreThanOneField([i32; 8000], [i32; 2], [i32; 9500], [i32; 30]),
 LL +     ContainingMoreThanOneField(Box<[i32; 8000]>, [i32; 2], Box<[i32; 9500]>, [i32; 30]),
@@ -140,7 +140,7 @@ LL | |     B(Struct2),
 LL | | }
    | |_^ the entire enum is at least 32004 bytes
    |
-help: consider boxing the large fields to reduce the total size of the enum
+help: consider boxing the large fields or introducing indirection in some other way to reduce the total size of the enum
    |
 LL -     B(Struct2),
 LL +     B(Box<Struct2>),
@@ -158,7 +158,7 @@ LL | |     B(Struct2),
 LL | | }
    | |_^ the entire enum is at least 32000 bytes
    |
-help: consider boxing the large fields to reduce the total size of the enum
+help: consider boxing the large fields or introducing indirection in some other way to reduce the total size of the enum
    |
 LL -     B(Struct2),
 LL +     B(Box<Struct2>),
@@ -176,7 +176,7 @@ LL | |     B(Struct2),
 LL | | }
    | |_^ the entire enum is at least 32000 bytes
    |
-help: consider boxing the large fields to reduce the total size of the enum
+help: consider boxing the large fields or introducing indirection in some other way to reduce the total size of the enum
    |
 LL -     B(Struct2),
 LL +     B(Box<Struct2>),
@@ -199,7 +199,7 @@ note: boxing a variant would require the type no longer be `Copy`
    |
 LL | enum CopyableLargeEnum {
    |      ^^^^^^^^^^^^^^^^^
-help: consider boxing the large fields to reduce the total size of the enum
+help: consider boxing the large fields or introducing indirection in some other way to reduce the total size of the enum
   --> tests/ui/large_enum_variant.rs:118:5
    |
 LL |     B([u64; 8000]),
@@ -222,7 +222,7 @@ note: boxing a variant would require the type no longer be `Copy`
    |
 LL | enum ManuallyCopyLargeEnum {
    |      ^^^^^^^^^^^^^^^^^^^^^
-help: consider boxing the large fields to reduce the total size of the enum
+help: consider boxing the large fields or introducing indirection in some other way to reduce the total size of the enum
   --> tests/ui/large_enum_variant.rs:124:5
    |
 LL |     B([u64; 8000]),
@@ -245,7 +245,7 @@ note: boxing a variant would require the type no longer be `Copy`
    |
 LL | enum SomeGenericPossiblyCopyEnum<T> {
    |      ^^^^^^^^^^^^^^^^^^^^^^^^^^^
-help: consider boxing the large fields to reduce the total size of the enum
+help: consider boxing the large fields or introducing indirection in some other way to reduce the total size of the enum
   --> tests/ui/large_enum_variant.rs:138:5
    |
 LL |     B([u64; 4000]),
@@ -263,7 +263,7 @@ LL | |     Large((T, [u8; 512])),
 LL | | }
    | |_^ the entire enum is at least 512 bytes
    |
-help: consider boxing the large fields to reduce the total size of the enum
+help: consider boxing the large fields or introducing indirection in some other way to reduce the total size of the enum
    |
 LL -     Large((T, [u8; 512])),
 LL +     Large(Box<(T, [u8; 512])>),
@@ -281,7 +281,7 @@ LL | |     Small(u8),
 LL | | }
    | |_^ the entire enum is at least 520 bytes
    |
-help: consider boxing the large fields to reduce the total size of the enum
+help: consider boxing the large fields or introducing indirection in some other way to reduce the total size of the enum
    |
 LL -     Large([Foo<u64>; 64]),
 LL +     Large(Box<[Foo<u64>; 64]>),
@@ -299,7 +299,7 @@ LL | |     Error(PossiblyLargeEnumWithConst<256>),
 LL | | }
    | |_^ the entire enum is at least 514 bytes
    |
-help: consider boxing the large fields to reduce the total size of the enum
+help: consider boxing the large fields or introducing indirection in some other way to reduce the total size of the enum
    |
 LL -     Error(PossiblyLargeEnumWithConst<256>),
 LL +     Error(Box<PossiblyLargeEnumWithConst<256>>),
@@ -317,7 +317,7 @@ LL | |     Recursive(Box<WithRecursion>),
 LL | | }
    | |_^ the entire enum is at least 520 bytes
    |
-help: consider boxing the large fields to reduce the total size of the enum
+help: consider boxing the large fields or introducing indirection in some other way to reduce the total size of the enum
    |
 LL -     Large([u64; 64]),
 LL +     Large(Box<[u64; 64]>),
@@ -335,7 +335,7 @@ LL | |     Error(WithRecursionAndGenerics<u64>),
 LL | | }
    | |_^ the entire enum is at least 520 bytes
    |
-help: consider boxing the large fields to reduce the total size of the enum
+help: consider boxing the large fields or introducing indirection in some other way to reduce the total size of the enum
    |
 LL -     Error(WithRecursionAndGenerics<u64>),
 LL +     Error(Box<WithRecursionAndGenerics<u64>>),
@@ -353,7 +353,7 @@ LL | |         _SmallBoi(u8),
 LL | |     }
    | |_____^ the entire enum is at least 296 bytes
    |
-help: consider boxing the large fields to reduce the total size of the enum
+help: consider boxing the large fields or introducing indirection in some other way to reduce the total size of the enum
    |
 LL -         BigBoi(PublishWithBytes),
 LL +         BigBoi(Box<PublishWithBytes>),
@@ -371,7 +371,7 @@ LL | |         _SmallBoi(u8),
 LL | |     }
    | |_____^ the entire enum is at least 224 bytes
    |
-help: consider boxing the large fields to reduce the total size of the enum
+help: consider boxing the large fields or introducing indirection in some other way to reduce the total size of the enum
    |
 LL -         BigBoi(PublishWithVec),
 LL +         BigBoi(Box<PublishWithVec>),
diff --git a/src/tools/clippy/tests/ui/large_enum_variant_no_std.rs b/src/tools/clippy/tests/ui/large_enum_variant_no_std.rs
new file mode 100644
index 00000000000..ff0213155b6
--- /dev/null
+++ b/src/tools/clippy/tests/ui/large_enum_variant_no_std.rs
@@ -0,0 +1,8 @@
+#![no_std]
+#![warn(clippy::large_enum_variant)]
+
+enum Myenum {
+    //~^ ERROR: large size difference between variants
+    Small(u8),
+    Large([u8; 1024]),
+}
diff --git a/src/tools/clippy/tests/ui/large_enum_variant_no_std.stderr b/src/tools/clippy/tests/ui/large_enum_variant_no_std.stderr
new file mode 100644
index 00000000000..4f32e3e4835
--- /dev/null
+++ b/src/tools/clippy/tests/ui/large_enum_variant_no_std.stderr
@@ -0,0 +1,22 @@
+error: large size difference between variants
+  --> tests/ui/large_enum_variant_no_std.rs:4:1
+   |
+LL | / enum Myenum {
+LL | |
+LL | |     Small(u8),
+   | |     --------- the second-largest variant contains at least 1 bytes
+LL | |     Large([u8; 1024]),
+   | |     ----------------- the largest variant contains at least 1024 bytes
+LL | | }
+   | |_^ the entire enum is at least 1025 bytes
+   |
+help: consider boxing the large fields or introducing indirection in some other way to reduce the total size of the enum
+  --> tests/ui/large_enum_variant_no_std.rs:7:5
+   |
+LL |     Large([u8; 1024]),
+   |     ^^^^^^^^^^^^^^^^^
+   = note: `-D clippy::large-enum-variant` implied by `-D warnings`
+   = help: to override `-D warnings` add `#[allow(clippy::large_enum_variant)]`
+
+error: aborting due to 1 previous error
+
diff --git a/src/tools/clippy/tests/ui/legacy_numeric_constants.fixed b/src/tools/clippy/tests/ui/legacy_numeric_constants.fixed
index 30bb549a9d6..d90e7bec027 100644
--- a/src/tools/clippy/tests/ui/legacy_numeric_constants.fixed
+++ b/src/tools/clippy/tests/ui/legacy_numeric_constants.fixed
@@ -79,9 +79,31 @@ fn main() {
     f64::consts::E;
     b!();
 
+    std::primitive::i32::MAX;
+    //~^ ERROR: usage of a legacy numeric method
+    //~| HELP: use the associated constant instead
     [(0, "", i128::MAX)];
     //~^ ERROR: usage of a legacy numeric constant
     //~| HELP: use the associated constant instead
+    i32::MAX;
+    //~^ ERROR: usage of a legacy numeric method
+    //~| HELP: use the associated constant instead
+    assert_eq!(0, -i32::MAX);
+    //~^ ERROR: usage of a legacy numeric method
+    //~| HELP: use the associated constant instead
+    i128::MAX;
+    //~^ ERROR: usage of a legacy numeric constant
+    //~| HELP: use the associated constant instead
+    u32::MAX;
+    //~^ ERROR: usage of a legacy numeric method
+    //~| HELP: use the associated constant instead
+    i32::MAX;
+    //~^ ERROR: usage of a legacy numeric method
+    //~| HELP: use the associated constant instead
+    type Ω = i32;
+    Ω::MAX;
+    //~^ ERROR: usage of a legacy numeric method
+    //~| HELP: use the associated constant instead
 }
 
 #[warn(clippy::legacy_numeric_constants)]
diff --git a/src/tools/clippy/tests/ui/legacy_numeric_constants.rs b/src/tools/clippy/tests/ui/legacy_numeric_constants.rs
index d3878199055..4a2ef3f70c2 100644
--- a/src/tools/clippy/tests/ui/legacy_numeric_constants.rs
+++ b/src/tools/clippy/tests/ui/legacy_numeric_constants.rs
@@ -79,9 +79,31 @@ fn main() {
     f64::consts::E;
     b!();
 
+    <std::primitive::i32>::max_value();
+    //~^ ERROR: usage of a legacy numeric method
+    //~| HELP: use the associated constant instead
     [(0, "", std::i128::MAX)];
     //~^ ERROR: usage of a legacy numeric constant
     //~| HELP: use the associated constant instead
+    (i32::max_value());
+    //~^ ERROR: usage of a legacy numeric method
+    //~| HELP: use the associated constant instead
+    assert_eq!(0, -(i32::max_value()));
+    //~^ ERROR: usage of a legacy numeric method
+    //~| HELP: use the associated constant instead
+    (std::i128::MAX);
+    //~^ ERROR: usage of a legacy numeric constant
+    //~| HELP: use the associated constant instead
+    (<u32>::max_value());
+    //~^ ERROR: usage of a legacy numeric method
+    //~| HELP: use the associated constant instead
+    ((i32::max_value)());
+    //~^ ERROR: usage of a legacy numeric method
+    //~| HELP: use the associated constant instead
+    type Ω = i32;
+    Ω::max_value();
+    //~^ ERROR: usage of a legacy numeric method
+    //~| HELP: use the associated constant instead
 }
 
 #[warn(clippy::legacy_numeric_constants)]
diff --git a/src/tools/clippy/tests/ui/legacy_numeric_constants.stderr b/src/tools/clippy/tests/ui/legacy_numeric_constants.stderr
index 4d69b8165a3..0b4f32e0abc 100644
--- a/src/tools/clippy/tests/ui/legacy_numeric_constants.stderr
+++ b/src/tools/clippy/tests/ui/legacy_numeric_constants.stderr
@@ -72,10 +72,10 @@ LL |     u32::MAX;
    |     +++++
 
 error: usage of a legacy numeric method
-  --> tests/ui/legacy_numeric_constants.rs:50:10
+  --> tests/ui/legacy_numeric_constants.rs:50:5
    |
 LL |     i32::max_value();
-   |          ^^^^^^^^^^^
+   |     ^^^^^^^^^^^^^^^^
    |
 help: use the associated constant instead
    |
@@ -84,10 +84,10 @@ LL +     i32::MAX;
    |
 
 error: usage of a legacy numeric method
-  --> tests/ui/legacy_numeric_constants.rs:53:9
+  --> tests/ui/legacy_numeric_constants.rs:53:5
    |
 LL |     u8::max_value();
-   |         ^^^^^^^^^^^
+   |     ^^^^^^^^^^^^^^^
    |
 help: use the associated constant instead
    |
@@ -96,10 +96,10 @@ LL +     u8::MAX;
    |
 
 error: usage of a legacy numeric method
-  --> tests/ui/legacy_numeric_constants.rs:56:9
+  --> tests/ui/legacy_numeric_constants.rs:56:5
    |
 LL |     u8::min_value();
-   |         ^^^^^^^^^^^
+   |     ^^^^^^^^^^^^^^^
    |
 help: use the associated constant instead
    |
@@ -120,10 +120,10 @@ LL +     u8::MIN;
    |
 
 error: usage of a legacy numeric method
-  --> tests/ui/legacy_numeric_constants.rs:62:27
+  --> tests/ui/legacy_numeric_constants.rs:62:5
    |
 LL |     ::std::primitive::u8::min_value();
-   |                           ^^^^^^^^^^^
+   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
 help: use the associated constant instead
    |
@@ -132,10 +132,10 @@ LL +     ::std::primitive::u8::MIN;
    |
 
 error: usage of a legacy numeric method
-  --> tests/ui/legacy_numeric_constants.rs:65:26
+  --> tests/ui/legacy_numeric_constants.rs:65:5
    |
 LL |     std::primitive::i32::max_value();
-   |                          ^^^^^^^^^^^
+   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
 help: use the associated constant instead
    |
@@ -171,8 +171,20 @@ LL -                 let x = std::u64::MAX;
 LL +                 let x = u64::MAX;
    |
 
+error: usage of a legacy numeric method
+  --> tests/ui/legacy_numeric_constants.rs:82:5
+   |
+LL |     <std::primitive::i32>::max_value();
+   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |
+help: use the associated constant instead
+   |
+LL -     <std::primitive::i32>::max_value();
+LL +     std::primitive::i32::MAX;
+   |
+
 error: usage of a legacy numeric constant
-  --> tests/ui/legacy_numeric_constants.rs:82:14
+  --> tests/ui/legacy_numeric_constants.rs:85:14
    |
 LL |     [(0, "", std::i128::MAX)];
    |              ^^^^^^^^^^^^^^
@@ -183,8 +195,80 @@ LL -     [(0, "", std::i128::MAX)];
 LL +     [(0, "", i128::MAX)];
    |
 
+error: usage of a legacy numeric method
+  --> tests/ui/legacy_numeric_constants.rs:88:5
+   |
+LL |     (i32::max_value());
+   |     ^^^^^^^^^^^^^^^^^^
+   |
+help: use the associated constant instead
+   |
+LL -     (i32::max_value());
+LL +     i32::MAX;
+   |
+
+error: usage of a legacy numeric method
+  --> tests/ui/legacy_numeric_constants.rs:91:20
+   |
+LL |     assert_eq!(0, -(i32::max_value()));
+   |                    ^^^^^^^^^^^^^^^^^^
+   |
+help: use the associated constant instead
+   |
+LL -     assert_eq!(0, -(i32::max_value()));
+LL +     assert_eq!(0, -i32::MAX);
+   |
+
+error: usage of a legacy numeric constant
+  --> tests/ui/legacy_numeric_constants.rs:94:5
+   |
+LL |     (std::i128::MAX);
+   |     ^^^^^^^^^^^^^^^^
+   |
+help: use the associated constant instead
+   |
+LL -     (std::i128::MAX);
+LL +     i128::MAX;
+   |
+
+error: usage of a legacy numeric method
+  --> tests/ui/legacy_numeric_constants.rs:97:5
+   |
+LL |     (<u32>::max_value());
+   |     ^^^^^^^^^^^^^^^^^^^^
+   |
+help: use the associated constant instead
+   |
+LL -     (<u32>::max_value());
+LL +     u32::MAX;
+   |
+
+error: usage of a legacy numeric method
+  --> tests/ui/legacy_numeric_constants.rs:100:5
+   |
+LL |     ((i32::max_value)());
+   |     ^^^^^^^^^^^^^^^^^^^^
+   |
+help: use the associated constant instead
+   |
+LL -     ((i32::max_value)());
+LL +     i32::MAX;
+   |
+
+error: usage of a legacy numeric method
+  --> tests/ui/legacy_numeric_constants.rs:104:5
+   |
+LL |     Ω::max_value();
+   |     ^^^^^^^^^^^^^^
+   |
+help: use the associated constant instead
+   |
+LL -     Ω::max_value();
+LL +     Ω::MAX;
+   |
+
 error: usage of a legacy numeric constant
-  --> tests/ui/legacy_numeric_constants.rs:116:5
+  --> tests/ui/legacy_numeric_constants.rs:138:5
    |
 LL |     std::u32::MAX;
    |     ^^^^^^^^^^^^^
@@ -195,5 +279,5 @@ LL -     std::u32::MAX;
 LL +     u32::MAX;
    |
 
-error: aborting due to 16 previous errors
+error: aborting due to 23 previous errors
 
diff --git a/src/tools/clippy/tests/ui/manual_abs_diff.fixed b/src/tools/clippy/tests/ui/manual_abs_diff.fixed
index f1b1278ea6d..2766942140c 100644
--- a/src/tools/clippy/tests/ui/manual_abs_diff.fixed
+++ b/src/tools/clippy/tests/ui/manual_abs_diff.fixed
@@ -104,3 +104,7 @@ fn non_primitive_ty() {
     let (a, b) = (S(10), S(20));
     let _ = if a < b { b - a } else { a - b };
 }
+
+fn issue15254(a: &usize, b: &usize) -> usize {
+    b.abs_diff(*a)
+}
diff --git a/src/tools/clippy/tests/ui/manual_abs_diff.rs b/src/tools/clippy/tests/ui/manual_abs_diff.rs
index 60ef819c12d..2c408f2be37 100644
--- a/src/tools/clippy/tests/ui/manual_abs_diff.rs
+++ b/src/tools/clippy/tests/ui/manual_abs_diff.rs
@@ -114,3 +114,12 @@ fn non_primitive_ty() {
     let (a, b) = (S(10), S(20));
     let _ = if a < b { b - a } else { a - b };
 }
+
+fn issue15254(a: &usize, b: &usize) -> usize {
+    if a < b {
+        //~^ manual_abs_diff
+        b - a
+    } else {
+        a - b
+    }
+}
diff --git a/src/tools/clippy/tests/ui/manual_abs_diff.stderr b/src/tools/clippy/tests/ui/manual_abs_diff.stderr
index c14c1dc830f..bb6d312b435 100644
--- a/src/tools/clippy/tests/ui/manual_abs_diff.stderr
+++ b/src/tools/clippy/tests/ui/manual_abs_diff.stderr
@@ -79,5 +79,16 @@ error: manual absolute difference pattern without using `abs_diff`
 LL |     let _ = if a > b { (a - b) as u32 } else { (b - a) as u32 };
    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace with `abs_diff`: `a.abs_diff(b)`
 
-error: aborting due to 11 previous errors
+error: manual absolute difference pattern without using `abs_diff`
+  --> tests/ui/manual_abs_diff.rs:119:5
+   |
+LL | /     if a < b {
+LL | |
+LL | |         b - a
+LL | |     } else {
+LL | |         a - b
+LL | |     }
+   | |_____^ help: replace with `abs_diff`: `b.abs_diff(*a)`
+
+error: aborting due to 12 previous errors
 
diff --git a/src/tools/clippy/tests/ui/manual_assert.edition2018.stderr b/src/tools/clippy/tests/ui/manual_assert.edition2018.stderr
index 8cedf2c6863..221cddf069d 100644
--- a/src/tools/clippy/tests/ui/manual_assert.edition2018.stderr
+++ b/src/tools/clippy/tests/ui/manual_assert.edition2018.stderr
@@ -189,5 +189,23 @@ LL -         };
 LL +         const BAR: () = assert!(!(N == 0), );
    |
 
-error: aborting due to 10 previous errors
+error: only a `panic!` in `if`-then statement
+  --> tests/ui/manual_assert.rs:116:5
+   |
+LL | /     if !is_x86_feature_detected!("ssse3") {
+LL | |
+LL | |         panic!("SSSE3 is not supported");
+LL | |     }
+   | |_____^
+   |
+help: try instead
+   |
+LL -     if !is_x86_feature_detected!("ssse3") {
+LL -
+LL -         panic!("SSSE3 is not supported");
+LL -     }
+LL +     assert!(is_x86_feature_detected!("ssse3"), "SSSE3 is not supported");
+   |
+
+error: aborting due to 11 previous errors
 
diff --git a/src/tools/clippy/tests/ui/manual_assert.edition2021.stderr b/src/tools/clippy/tests/ui/manual_assert.edition2021.stderr
index 8cedf2c6863..221cddf069d 100644
--- a/src/tools/clippy/tests/ui/manual_assert.edition2021.stderr
+++ b/src/tools/clippy/tests/ui/manual_assert.edition2021.stderr
@@ -189,5 +189,23 @@ LL -         };
 LL +         const BAR: () = assert!(!(N == 0), );
    |
 
-error: aborting due to 10 previous errors
+error: only a `panic!` in `if`-then statement
+  --> tests/ui/manual_assert.rs:116:5
+   |
+LL | /     if !is_x86_feature_detected!("ssse3") {
+LL | |
+LL | |         panic!("SSSE3 is not supported");
+LL | |     }
+   | |_____^
+   |
+help: try instead
+   |
+LL -     if !is_x86_feature_detected!("ssse3") {
+LL -
+LL -         panic!("SSSE3 is not supported");
+LL -     }
+LL +     assert!(is_x86_feature_detected!("ssse3"), "SSSE3 is not supported");
+   |
+
+error: aborting due to 11 previous errors
 
diff --git a/src/tools/clippy/tests/ui/manual_assert.rs b/src/tools/clippy/tests/ui/manual_assert.rs
index 46a42c3d00a..ab02bd5f5e5 100644
--- a/src/tools/clippy/tests/ui/manual_assert.rs
+++ b/src/tools/clippy/tests/ui/manual_assert.rs
@@ -105,3 +105,17 @@ fn issue12505() {
         };
     }
 }
+
+fn issue15227(left: u64, right: u64) -> u64 {
+    macro_rules! is_x86_feature_detected {
+        ($feature:literal) => {
+            $feature.len() > 0 && $feature.starts_with("ss")
+        };
+    }
+
+    if !is_x86_feature_detected!("ssse3") {
+        //~^ manual_assert
+        panic!("SSSE3 is not supported");
+    }
+    unsafe { todo!() }
+}
diff --git a/src/tools/clippy/tests/ui/manual_is_multiple_of.fixed b/src/tools/clippy/tests/ui/manual_is_multiple_of.fixed
index 6735b99f298..03f75e725ed 100644
--- a/src/tools/clippy/tests/ui/manual_is_multiple_of.fixed
+++ b/src/tools/clippy/tests/ui/manual_is_multiple_of.fixed
@@ -23,3 +23,81 @@ fn f(a: u64, b: u64) {
 fn g(a: u64, b: u64) {
     let _ = a % b == 0;
 }
+
+fn needs_deref(a: &u64, b: &u64) {
+    let _ = a.is_multiple_of(*b); //~ manual_is_multiple_of
+}
+
+fn closures(a: u64, b: u64) {
+    // Do not lint, types are ambiguous at this point
+    let cl = |a, b| a % b == 0;
+    let _ = cl(a, b);
+
+    // Do not lint, types are ambiguous at this point
+    let cl = |a: _, b: _| a % b == 0;
+    let _ = cl(a, b);
+
+    // Type of `a` is enough
+    let cl = |a: u64, b| a.is_multiple_of(b); //~ manual_is_multiple_of
+    let _ = cl(a, b);
+
+    // Type of `a` is enough
+    let cl = |a: &u64, b| a.is_multiple_of(b); //~ manual_is_multiple_of
+    let _ = cl(&a, b);
+
+    // Type of `b` is not enough
+    let cl = |a, b: u64| a % b == 0;
+    let _ = cl(&a, b);
+}
+
+fn any_rem<T: std::ops::Rem<Output = u32>>(a: T, b: T) {
+    // An arbitrary `Rem` implementation should not lint
+    let _ = a % b == 0;
+}
+
+mod issue15103 {
+    fn foo() -> Option<u64> {
+        let mut n: u64 = 150_000_000;
+
+        (2..).find(|p| {
+            while n.is_multiple_of(*p) {
+                //~^ manual_is_multiple_of
+                n /= p;
+            }
+            n <= 1
+        })
+    }
+
+    const fn generate_primes<const N: usize>() -> [u64; N] {
+        let mut result = [0; N];
+        if N == 0 {
+            return result;
+        }
+        result[0] = 2;
+        if N == 1 {
+            return result;
+        }
+        let mut idx = 1;
+        let mut p = 3;
+        while idx < N {
+            let mut j = 0;
+            while j < idx && p % result[j] != 0 {
+                j += 1;
+            }
+            if j == idx {
+                result[idx] = p;
+                idx += 1;
+            }
+            p += 1;
+        }
+        result
+    }
+
+    fn bar() -> u32 {
+        let d = |n: u32| -> u32 { (1..=n / 2).filter(|i| n.is_multiple_of(*i)).sum() };
+        //~^ manual_is_multiple_of
+
+        let d = |n| (1..=n / 2).filter(|i| n % i == 0).sum();
+        (1..1_000).filter(|&i| i == d(d(i)) && i != d(i)).sum()
+    }
+}
diff --git a/src/tools/clippy/tests/ui/manual_is_multiple_of.rs b/src/tools/clippy/tests/ui/manual_is_multiple_of.rs
index 00b638e4fd9..7b6fa64c843 100644
--- a/src/tools/clippy/tests/ui/manual_is_multiple_of.rs
+++ b/src/tools/clippy/tests/ui/manual_is_multiple_of.rs
@@ -23,3 +23,81 @@ fn f(a: u64, b: u64) {
 fn g(a: u64, b: u64) {
     let _ = a % b == 0;
 }
+
+fn needs_deref(a: &u64, b: &u64) {
+    let _ = a % b == 0; //~ manual_is_multiple_of
+}
+
+fn closures(a: u64, b: u64) {
+    // Do not lint, types are ambiguous at this point
+    let cl = |a, b| a % b == 0;
+    let _ = cl(a, b);
+
+    // Do not lint, types are ambiguous at this point
+    let cl = |a: _, b: _| a % b == 0;
+    let _ = cl(a, b);
+
+    // Type of `a` is enough
+    let cl = |a: u64, b| a % b == 0; //~ manual_is_multiple_of
+    let _ = cl(a, b);
+
+    // Type of `a` is enough
+    let cl = |a: &u64, b| a % b == 0; //~ manual_is_multiple_of
+    let _ = cl(&a, b);
+
+    // Type of `b` is not enough
+    let cl = |a, b: u64| a % b == 0;
+    let _ = cl(&a, b);
+}
+
+fn any_rem<T: std::ops::Rem<Output = u32>>(a: T, b: T) {
+    // An arbitrary `Rem` implementation should not lint
+    let _ = a % b == 0;
+}
+
+mod issue15103 {
+    fn foo() -> Option<u64> {
+        let mut n: u64 = 150_000_000;
+
+        (2..).find(|p| {
+            while n % p == 0 {
+                //~^ manual_is_multiple_of
+                n /= p;
+            }
+            n <= 1
+        })
+    }
+
+    const fn generate_primes<const N: usize>() -> [u64; N] {
+        let mut result = [0; N];
+        if N == 0 {
+            return result;
+        }
+        result[0] = 2;
+        if N == 1 {
+            return result;
+        }
+        let mut idx = 1;
+        let mut p = 3;
+        while idx < N {
+            let mut j = 0;
+            while j < idx && p % result[j] != 0 {
+                j += 1;
+            }
+            if j == idx {
+                result[idx] = p;
+                idx += 1;
+            }
+            p += 1;
+        }
+        result
+    }
+
+    fn bar() -> u32 {
+        let d = |n: u32| -> u32 { (1..=n / 2).filter(|i| n % i == 0).sum() };
+        //~^ manual_is_multiple_of
+
+        let d = |n| (1..=n / 2).filter(|i| n % i == 0).sum();
+        (1..1_000).filter(|&i| i == d(d(i)) && i != d(i)).sum()
+    }
+}
diff --git a/src/tools/clippy/tests/ui/manual_is_multiple_of.stderr b/src/tools/clippy/tests/ui/manual_is_multiple_of.stderr
index 0b1ae70c2a7..8523599ec40 100644
--- a/src/tools/clippy/tests/ui/manual_is_multiple_of.stderr
+++ b/src/tools/clippy/tests/ui/manual_is_multiple_of.stderr
@@ -37,5 +37,35 @@ error: manual implementation of `.is_multiple_of()`
 LL |     let _ = 0 < a % b;
    |             ^^^^^^^^^ help: replace with: `!a.is_multiple_of(b)`
 
-error: aborting due to 6 previous errors
+error: manual implementation of `.is_multiple_of()`
+  --> tests/ui/manual_is_multiple_of.rs:28:13
+   |
+LL |     let _ = a % b == 0;
+   |             ^^^^^^^^^^ help: replace with: `a.is_multiple_of(*b)`
+
+error: manual implementation of `.is_multiple_of()`
+  --> tests/ui/manual_is_multiple_of.rs:41:26
+   |
+LL |     let cl = |a: u64, b| a % b == 0;
+   |                          ^^^^^^^^^^ help: replace with: `a.is_multiple_of(b)`
+
+error: manual implementation of `.is_multiple_of()`
+  --> tests/ui/manual_is_multiple_of.rs:45:27
+   |
+LL |     let cl = |a: &u64, b| a % b == 0;
+   |                           ^^^^^^^^^^ help: replace with: `a.is_multiple_of(b)`
+
+error: manual implementation of `.is_multiple_of()`
+  --> tests/ui/manual_is_multiple_of.rs:63:19
+   |
+LL |             while n % p == 0 {
+   |                   ^^^^^^^^^^ help: replace with: `n.is_multiple_of(*p)`
+
+error: manual implementation of `.is_multiple_of()`
+  --> tests/ui/manual_is_multiple_of.rs:97:58
+   |
+LL |         let d = |n: u32| -> u32 { (1..=n / 2).filter(|i| n % i == 0).sum() };
+   |                                                          ^^^^^^^^^^ help: replace with: `n.is_multiple_of(*i)`
+
+error: aborting due to 11 previous errors
 
diff --git a/src/tools/clippy/tests/ui/map_identity.fixed b/src/tools/clippy/tests/ui/map_identity.fixed
index 83b2dac5fc5..b82d3e6d956 100644
--- a/src/tools/clippy/tests/ui/map_identity.fixed
+++ b/src/tools/clippy/tests/ui/map_identity.fixed
@@ -87,3 +87,15 @@ fn issue13904() {
     let _ = { it }.next();
     //~^ map_identity
 }
+
+// same as `issue11764`, but for arrays
+fn issue15198() {
+    let x = [[1, 2], [3, 4]];
+    // don't lint: `&[i32; 2]` becomes `[&i32; 2]`
+    let _ = x.iter().map(|[x, y]| [x, y]);
+    let _ = x.iter().map(|x| [x[0]]).map(|[x]| x);
+
+    // no match ergonomics for `[i32, i32]`
+    let _ = x.iter().copied();
+    //~^ map_identity
+}
diff --git a/src/tools/clippy/tests/ui/map_identity.rs b/src/tools/clippy/tests/ui/map_identity.rs
index e839c551364..c295bf87270 100644
--- a/src/tools/clippy/tests/ui/map_identity.rs
+++ b/src/tools/clippy/tests/ui/map_identity.rs
@@ -93,3 +93,15 @@ fn issue13904() {
     let _ = { it }.map(|x| x).next();
     //~^ map_identity
 }
+
+// same as `issue11764`, but for arrays
+fn issue15198() {
+    let x = [[1, 2], [3, 4]];
+    // don't lint: `&[i32; 2]` becomes `[&i32; 2]`
+    let _ = x.iter().map(|[x, y]| [x, y]);
+    let _ = x.iter().map(|x| [x[0]]).map(|[x]| x);
+
+    // no match ergonomics for `[i32, i32]`
+    let _ = x.iter().copied().map(|[x, y]| [x, y]);
+    //~^ map_identity
+}
diff --git a/src/tools/clippy/tests/ui/map_identity.stderr b/src/tools/clippy/tests/ui/map_identity.stderr
index 9836f3b4cc5..9b624a0dc75 100644
--- a/src/tools/clippy/tests/ui/map_identity.stderr
+++ b/src/tools/clippy/tests/ui/map_identity.stderr
@@ -87,5 +87,11 @@ error: unnecessary map of the identity function
 LL |     let _ = { it }.map(|x| x).next();
    |                   ^^^^^^^^^^^ help: remove the call to `map`
 
-error: aborting due to 13 previous errors
+error: unnecessary map of the identity function
+  --> tests/ui/map_identity.rs:105:30
+   |
+LL |     let _ = x.iter().copied().map(|[x, y]| [x, y]);
+   |                              ^^^^^^^^^^^^^^^^^^^^^ help: remove the call to `map`
+
+error: aborting due to 14 previous errors
 
diff --git a/src/tools/clippy/tests/ui/missing_inline.rs b/src/tools/clippy/tests/ui/missing_inline.rs
index c1801005b77..223c7447975 100644
--- a/src/tools/clippy/tests/ui/missing_inline.rs
+++ b/src/tools/clippy/tests/ui/missing_inline.rs
@@ -80,3 +80,20 @@ impl PubFoo {
 // do not lint this since users cannot control the external code
 #[derive(Debug)]
 pub struct S;
+
+pub mod issue15301 {
+    #[unsafe(no_mangle)]
+    pub extern "C" fn call_from_c() {
+        println!("Just called a Rust function from C!");
+    }
+
+    #[unsafe(no_mangle)]
+    pub extern "Rust" fn call_from_rust() {
+        println!("Just called a Rust function from Rust!");
+    }
+
+    #[unsafe(no_mangle)]
+    pub fn call_from_rust_no_extern() {
+        println!("Just called a Rust function from Rust!");
+    }
+}
diff --git a/src/tools/clippy/tests/ui/module_name_repetitions.rs b/src/tools/clippy/tests/ui/module_name_repetitions.rs
index 2fde98d7927..5d16858bf85 100644
--- a/src/tools/clippy/tests/ui/module_name_repetitions.rs
+++ b/src/tools/clippy/tests/ui/module_name_repetitions.rs
@@ -55,3 +55,21 @@ pub mod foo {
 }
 
 fn main() {}
+
+pub mod issue14095 {
+    pub mod widget {
+        #[macro_export]
+        macro_rules! define_widget {
+            ($id:ident) => {
+                /* ... */
+            };
+        }
+
+        #[macro_export]
+        macro_rules! widget_impl {
+            ($id:ident) => {
+                /* ... */
+            };
+        }
+    }
+}
diff --git a/src/tools/clippy/tests/ui/must_use_candidates.fixed b/src/tools/clippy/tests/ui/must_use_candidates.fixed
index 4c1d6b1ccb5..1e8589cf39d 100644
--- a/src/tools/clippy/tests/ui/must_use_candidates.fixed
+++ b/src/tools/clippy/tests/ui/must_use_candidates.fixed
@@ -13,13 +13,15 @@ use std::sync::atomic::{AtomicBool, Ordering};
 pub struct MyAtomic(AtomicBool);
 pub struct MyPure;
 
-#[must_use] pub fn pure(i: u8) -> u8 {
+#[must_use] 
+pub fn pure(i: u8) -> u8 {
     //~^ must_use_candidate
     i
 }
 
 impl MyPure {
-    #[must_use] pub fn inherent_pure(&self) -> u8 {
+    #[must_use] 
+    pub fn inherent_pure(&self) -> u8 {
         //~^ must_use_candidate
         0
     }
@@ -51,7 +53,8 @@ pub fn with_callback<F: Fn(u32) -> bool>(f: &F) -> bool {
     f(0)
 }
 
-#[must_use] pub fn with_marker(_d: std::marker::PhantomData<&mut u32>) -> bool {
+#[must_use] 
+pub fn with_marker(_d: std::marker::PhantomData<&mut u32>) -> bool {
     //~^ must_use_candidate
     true
 }
@@ -64,7 +67,8 @@ pub fn atomics(b: &AtomicBool) -> bool {
     b.load(Ordering::SeqCst)
 }
 
-#[must_use] pub fn rcd(_x: Rc<u32>) -> bool {
+#[must_use] 
+pub fn rcd(_x: Rc<u32>) -> bool {
     //~^ must_use_candidate
     true
 }
@@ -73,7 +77,8 @@ pub fn rcmut(_x: Rc<&mut u32>) -> bool {
     true
 }
 
-#[must_use] pub fn arcd(_x: Arc<u32>) -> bool {
+#[must_use] 
+pub fn arcd(_x: Arc<u32>) -> bool {
     //~^ must_use_candidate
     false
 }
diff --git a/src/tools/clippy/tests/ui/must_use_candidates.stderr b/src/tools/clippy/tests/ui/must_use_candidates.stderr
index 590253d95f9..5ddbd026062 100644
--- a/src/tools/clippy/tests/ui/must_use_candidates.stderr
+++ b/src/tools/clippy/tests/ui/must_use_candidates.stderr
@@ -1,35 +1,64 @@
 error: this function could have a `#[must_use]` attribute
-  --> tests/ui/must_use_candidates.rs:16:1
+  --> tests/ui/must_use_candidates.rs:16:8
    |
 LL | pub fn pure(i: u8) -> u8 {
-   | ^^^^^^^^^^^^^^^^^^^^^^^^ help: add the attribute: `#[must_use] pub fn pure(i: u8) -> u8`
+   |        ^^^^
    |
    = note: `-D clippy::must-use-candidate` implied by `-D warnings`
    = help: to override `-D warnings` add `#[allow(clippy::must_use_candidate)]`
+help: add the attribute
+   |
+LL + #[must_use] 
+LL | pub fn pure(i: u8) -> u8 {
+   |
 
 error: this method could have a `#[must_use]` attribute
-  --> tests/ui/must_use_candidates.rs:22:5
+  --> tests/ui/must_use_candidates.rs:22:12
    |
 LL |     pub fn inherent_pure(&self) -> u8 {
-   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: add the attribute: `#[must_use] pub fn inherent_pure(&self) -> u8`
+   |            ^^^^^^^^^^^^^
+   |
+help: add the attribute
+   |
+LL ~     #[must_use] 
+LL ~     pub fn inherent_pure(&self) -> u8 {
+   |
 
 error: this function could have a `#[must_use]` attribute
-  --> tests/ui/must_use_candidates.rs:54:1
+  --> tests/ui/must_use_candidates.rs:54:8
+   |
+LL | pub fn with_marker(_d: std::marker::PhantomData<&mut u32>) -> bool {
+   |        ^^^^^^^^^^^
+   |
+help: add the attribute
    |
+LL + #[must_use] 
 LL | pub fn with_marker(_d: std::marker::PhantomData<&mut u32>) -> bool {
-   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: add the attribute: `#[must_use] pub fn with_marker(_d: std::marker::PhantomData<&mut u32>) -> bool`
+   |
 
 error: this function could have a `#[must_use]` attribute
-  --> tests/ui/must_use_candidates.rs:67:1
+  --> tests/ui/must_use_candidates.rs:67:8
    |
 LL | pub fn rcd(_x: Rc<u32>) -> bool {
-   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: add the attribute: `#[must_use] pub fn rcd(_x: Rc<u32>) -> bool`
+   |        ^^^
+   |
+help: add the attribute
+   |
+LL + #[must_use] 
+LL | pub fn rcd(_x: Rc<u32>) -> bool {
+   |
 
 error: this function could have a `#[must_use]` attribute
-  --> tests/ui/must_use_candidates.rs:76:1
+  --> tests/ui/must_use_candidates.rs:76:8
    |
 LL | pub fn arcd(_x: Arc<u32>) -> bool {
-   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: add the attribute: `#[must_use] pub fn arcd(_x: Arc<u32>) -> bool`
+   |        ^^^^
+   |
+help: add the attribute
+   |
+LL + #[must_use] 
+LL | pub fn arcd(_x: Arc<u32>) -> bool {
+   |
 
 error: aborting due to 5 previous errors
 
diff --git a/src/tools/clippy/tests/ui/needless_for_each_fixable.fixed b/src/tools/clippy/tests/ui/needless_for_each_fixable.fixed
index a73aff55639..a6d64d9afc1 100644
--- a/src/tools/clippy/tests/ui/needless_for_each_fixable.fixed
+++ b/src/tools/clippy/tests/ui/needless_for_each_fixable.fixed
@@ -143,3 +143,9 @@ mod issue14734 {
         //~^ needless_for_each
     }
 }
+
+fn issue15256() {
+    let vec: Vec<i32> = Vec::new();
+    for v in vec.iter() { println!("{v}"); }
+    //~^ needless_for_each
+}
diff --git a/src/tools/clippy/tests/ui/needless_for_each_fixable.rs b/src/tools/clippy/tests/ui/needless_for_each_fixable.rs
index d92f055d3f4..7e74d2b428f 100644
--- a/src/tools/clippy/tests/ui/needless_for_each_fixable.rs
+++ b/src/tools/clippy/tests/ui/needless_for_each_fixable.rs
@@ -143,3 +143,9 @@ mod issue14734 {
         //~^ needless_for_each
     }
 }
+
+fn issue15256() {
+    let vec: Vec<i32> = Vec::new();
+    vec.iter().for_each(|v| println!("{v}"));
+    //~^ needless_for_each
+}
diff --git a/src/tools/clippy/tests/ui/needless_for_each_fixable.stderr b/src/tools/clippy/tests/ui/needless_for_each_fixable.stderr
index f8014456097..204cfa36b02 100644
--- a/src/tools/clippy/tests/ui/needless_for_each_fixable.stderr
+++ b/src/tools/clippy/tests/ui/needless_for_each_fixable.stderr
@@ -148,5 +148,11 @@ error: needless use of `for_each`
 LL |         rows.iter().for_each(|x| do_something(x, 1u8));
    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `for x in rows.iter() { do_something(x, 1u8); }`
 
-error: aborting due to 10 previous errors
+error: needless use of `for_each`
+  --> tests/ui/needless_for_each_fixable.rs:149:5
+   |
+LL |     vec.iter().for_each(|v| println!("{v}"));
+   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `for v in vec.iter() { println!("{v}"); }`
+
+error: aborting due to 11 previous errors
 
diff --git a/src/tools/clippy/tests/ui/needless_range_loop.rs b/src/tools/clippy/tests/ui/needless_range_loop.rs
index 8a1c1be289c..70cf9fa7369 100644
--- a/src/tools/clippy/tests/ui/needless_range_loop.rs
+++ b/src/tools/clippy/tests/ui/needless_range_loop.rs
@@ -185,3 +185,28 @@ mod issue_2496 {
         unimplemented!()
     }
 }
+
+fn needless_loop() {
+    use std::hint::black_box;
+    let x = [0; 64];
+    for i in 0..64 {
+        let y = [0; 64];
+
+        black_box(x[i]);
+        black_box(y[i]);
+    }
+
+    for i in 0..64 {
+        black_box(x[i]);
+        black_box([0; 64][i]);
+    }
+
+    for i in 0..64 {
+        black_box(x[i]);
+        black_box([1, 2, 3, 4, 5, 6, 7, 8][i]);
+    }
+
+    for i in 0..64 {
+        black_box([1, 2, 3, 4, 5, 6, 7, 8][i]);
+    }
+}
diff --git a/src/tools/clippy/tests/ui/never_loop.rs b/src/tools/clippy/tests/ui/never_loop.rs
index e0f54ef899b..48d4b8ad151 100644
--- a/src/tools/clippy/tests/ui/never_loop.rs
+++ b/src/tools/clippy/tests/ui/never_loop.rs
@@ -466,3 +466,35 @@ fn main() {
     test13();
     test14();
 }
+
+fn issue15059() {
+    'a: for _ in 0..1 {
+        //~^ never_loop
+        break 'a;
+    }
+
+    let mut b = 1;
+    'a: for i in 0..1 {
+        //~^ never_loop
+        match i {
+            0 => {
+                b *= 2;
+                break 'a;
+            },
+            x => {
+                b += x;
+                break 'a;
+            },
+        }
+    }
+
+    #[allow(clippy::unused_unit)]
+    for v in 0..10 {
+        //~^ never_loop
+        break;
+        println!("{v}");
+        // This is comment and should be kept
+        println!("This is a comment");
+        ()
+    }
+}
diff --git a/src/tools/clippy/tests/ui/never_loop.stderr b/src/tools/clippy/tests/ui/never_loop.stderr
index bc9a7ec48b4..54b463266a3 100644
--- a/src/tools/clippy/tests/ui/never_loop.stderr
+++ b/src/tools/clippy/tests/ui/never_loop.stderr
@@ -176,8 +176,10 @@ LL | |     }
    |
 help: if you need the first element of the iterator, try writing
    |
-LL -     for v in 0..10 {
-LL +     if let Some(v) = (0..10).next() {
+LL ~     if let Some(v) = (0..10).next() {
+LL |
+LL ~         
+LL ~         
    |
 
 error: this loop never actually loops
@@ -232,5 +234,68 @@ LL | |             break 'inner;
 LL | |         }
    | |_________^
 
-error: aborting due to 21 previous errors
+error: this loop never actually loops
+  --> tests/ui/never_loop.rs:471:5
+   |
+LL | /     'a: for _ in 0..1 {
+LL | |
+LL | |         break 'a;
+LL | |     }
+   | |_____^
+   |
+help: if you need the first element of the iterator, try writing
+   |
+LL ~     if let Some(_) = (0..1).next() {
+LL |
+LL ~         
+   |
+
+error: this loop never actually loops
+  --> tests/ui/never_loop.rs:477:5
+   |
+LL | /     'a: for i in 0..1 {
+LL | |
+LL | |         match i {
+LL | |             0 => {
+...  |
+LL | |     }
+   | |_____^
+   |
+help: if you need the first element of the iterator, try writing
+   |
+LL ~     if let Some(i) = (0..1).next() {
+LL |
+...
+LL |                 b *= 2;
+LL ~                 
+LL |             },
+LL |             x => {
+LL |                 b += x;
+LL ~                 
+   |
+
+error: this loop never actually loops
+  --> tests/ui/never_loop.rs:492:5
+   |
+LL | /     for v in 0..10 {
+LL | |
+LL | |         break;
+LL | |         println!("{v}");
+...  |
+LL | |         ()
+LL | |     }
+   | |_____^
+   |
+help: if you need the first element of the iterator, try writing
+   |
+LL ~     if let Some(v) = (0..10).next() {
+LL |
+LL ~         
+LL ~         
+LL |         // This is comment and should be kept
+LL ~         
+LL ~         
+   |
+
+error: aborting due to 24 previous errors
 
diff --git a/src/tools/clippy/tests/ui/or_fun_call.fixed b/src/tools/clippy/tests/ui/or_fun_call.fixed
index bcd2602edb6..0a8525a12f5 100644
--- a/src/tools/clippy/tests/ui/or_fun_call.fixed
+++ b/src/tools/clippy/tests/ui/or_fun_call.fixed
@@ -283,6 +283,8 @@ mod issue8993 {
         let _ = Some(4).map_or_else(g, f);
         //~^ or_fun_call
         let _ = Some(4).map_or(0, f);
+        let _ = Some(4).map_or_else(|| "asd".to_string().len() as i32, f);
+        //~^ or_fun_call
     }
 }
 
@@ -426,6 +428,8 @@ mod result_map_or {
         let _ = x.map_or_else(|_| g(), f);
         //~^ or_fun_call
         let _ = x.map_or(0, f);
+        let _ = x.map_or_else(|_| "asd".to_string().len() as i32, f);
+        //~^ or_fun_call
     }
 }
 
diff --git a/src/tools/clippy/tests/ui/or_fun_call.rs b/src/tools/clippy/tests/ui/or_fun_call.rs
index 8d1202ebf91..b4f9b950a7f 100644
--- a/src/tools/clippy/tests/ui/or_fun_call.rs
+++ b/src/tools/clippy/tests/ui/or_fun_call.rs
@@ -283,6 +283,8 @@ mod issue8993 {
         let _ = Some(4).map_or(g(), f);
         //~^ or_fun_call
         let _ = Some(4).map_or(0, f);
+        let _ = Some(4).map_or("asd".to_string().len() as i32, f);
+        //~^ or_fun_call
     }
 }
 
@@ -426,6 +428,8 @@ mod result_map_or {
         let _ = x.map_or(g(), f);
         //~^ or_fun_call
         let _ = x.map_or(0, f);
+        let _ = x.map_or("asd".to_string().len() as i32, f);
+        //~^ or_fun_call
     }
 }
 
diff --git a/src/tools/clippy/tests/ui/or_fun_call.stderr b/src/tools/clippy/tests/ui/or_fun_call.stderr
index 585ee2d0e19..3e4df772668 100644
--- a/src/tools/clippy/tests/ui/or_fun_call.stderr
+++ b/src/tools/clippy/tests/ui/or_fun_call.stderr
@@ -154,62 +154,68 @@ error: function call inside of `map_or`
 LL |         let _ = Some(4).map_or(g(), f);
    |                         ^^^^^^^^^^^^^^ help: try: `map_or_else(g, f)`
 
+error: function call inside of `map_or`
+  --> tests/ui/or_fun_call.rs:286:25
+   |
+LL |         let _ = Some(4).map_or("asd".to_string().len() as i32, f);
+   |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `map_or_else(|| "asd".to_string().len() as i32, f)`
+
 error: use of `unwrap_or_else` to construct default value
-  --> tests/ui/or_fun_call.rs:315:18
+  --> tests/ui/or_fun_call.rs:317:18
    |
 LL |         with_new.unwrap_or_else(Vec::new);
    |                  ^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `unwrap_or_default()`
 
 error: use of `unwrap_or_else` to construct default value
-  --> tests/ui/or_fun_call.rs:319:28
+  --> tests/ui/or_fun_call.rs:321:28
    |
 LL |         with_default_trait.unwrap_or_else(Default::default);
    |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `unwrap_or_default()`
 
 error: use of `unwrap_or_else` to construct default value
-  --> tests/ui/or_fun_call.rs:323:27
+  --> tests/ui/or_fun_call.rs:325:27
    |
 LL |         with_default_type.unwrap_or_else(u64::default);
    |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `unwrap_or_default()`
 
 error: use of `unwrap_or_else` to construct default value
-  --> tests/ui/or_fun_call.rs:327:22
+  --> tests/ui/or_fun_call.rs:329:22
    |
 LL |         real_default.unwrap_or_else(<FakeDefault as Default>::default);
    |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `unwrap_or_default()`
 
 error: use of `or_insert_with` to construct default value
-  --> tests/ui/or_fun_call.rs:331:23
+  --> tests/ui/or_fun_call.rs:333:23
    |
 LL |         map.entry(42).or_insert_with(String::new);
    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `or_default()`
 
 error: use of `or_insert_with` to construct default value
-  --> tests/ui/or_fun_call.rs:335:25
+  --> tests/ui/or_fun_call.rs:337:25
    |
 LL |         btree.entry(42).or_insert_with(String::new);
    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `or_default()`
 
 error: use of `unwrap_or_else` to construct default value
-  --> tests/ui/or_fun_call.rs:339:25
+  --> tests/ui/or_fun_call.rs:341:25
    |
 LL |         let _ = stringy.unwrap_or_else(String::new);
    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `unwrap_or_default()`
 
 error: function call inside of `unwrap_or`
-  --> tests/ui/or_fun_call.rs:381:17
+  --> tests/ui/or_fun_call.rs:383:17
    |
 LL |     let _ = opt.unwrap_or({ f() }); // suggest `.unwrap_or_else(f)`
    |                 ^^^^^^^^^^^^^^^^^^ help: try: `unwrap_or_else(f)`
 
 error: function call inside of `unwrap_or`
-  --> tests/ui/or_fun_call.rs:386:17
+  --> tests/ui/or_fun_call.rs:388:17
    |
 LL |     let _ = opt.unwrap_or(f() + 1); // suggest `.unwrap_or_else(|| f() + 1)`
    |                 ^^^^^^^^^^^^^^^^^^ help: try: `unwrap_or_else(|| f() + 1)`
 
 error: function call inside of `unwrap_or`
-  --> tests/ui/or_fun_call.rs:391:17
+  --> tests/ui/or_fun_call.rs:393:17
    |
 LL |       let _ = opt.unwrap_or({
    |  _________________^
@@ -229,52 +235,58 @@ LL ~     });
    |
 
 error: function call inside of `map_or`
-  --> tests/ui/or_fun_call.rs:397:17
+  --> tests/ui/or_fun_call.rs:399:17
    |
 LL |     let _ = opt.map_or(f() + 1, |v| v); // suggest `.map_or_else(|| f() + 1, |v| v)`
    |                 ^^^^^^^^^^^^^^^^^^^^^^ help: try: `map_or_else(|| f() + 1, |v| v)`
 
 error: use of `unwrap_or` to construct default value
-  --> tests/ui/or_fun_call.rs:402:17
+  --> tests/ui/or_fun_call.rs:404:17
    |
 LL |     let _ = opt.unwrap_or({ i32::default() });
    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `unwrap_or_default()`
 
 error: function call inside of `unwrap_or`
-  --> tests/ui/or_fun_call.rs:409:21
+  --> tests/ui/or_fun_call.rs:411:21
    |
 LL |     let _ = opt_foo.unwrap_or(Foo { val: String::default() });
    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `unwrap_or_else(|| Foo { val: String::default() })`
 
 error: function call inside of `map_or`
-  --> tests/ui/or_fun_call.rs:424:19
+  --> tests/ui/or_fun_call.rs:426:19
    |
 LL |         let _ = x.map_or(g(), |v| v);
    |                   ^^^^^^^^^^^^^^^^^^ help: try: `map_or_else(|_| g(), |v| v)`
 
 error: function call inside of `map_or`
-  --> tests/ui/or_fun_call.rs:426:19
+  --> tests/ui/or_fun_call.rs:428:19
    |
 LL |         let _ = x.map_or(g(), f);
    |                   ^^^^^^^^^^^^^^ help: try: `map_or_else(|_| g(), f)`
 
+error: function call inside of `map_or`
+  --> tests/ui/or_fun_call.rs:431:19
+   |
+LL |         let _ = x.map_or("asd".to_string().len() as i32, f);
+   |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `map_or_else(|_| "asd".to_string().len() as i32, f)`
+
 error: function call inside of `get_or_insert`
-  --> tests/ui/or_fun_call.rs:438:15
+  --> tests/ui/or_fun_call.rs:442:15
    |
 LL |     let _ = x.get_or_insert(g());
    |               ^^^^^^^^^^^^^^^^^^ help: try: `get_or_insert_with(g)`
 
 error: function call inside of `and`
-  --> tests/ui/or_fun_call.rs:448:15
+  --> tests/ui/or_fun_call.rs:452:15
    |
 LL |     let _ = x.and(g());
    |               ^^^^^^^^ help: try: `and_then(|_| g())`
 
 error: function call inside of `and`
-  --> tests/ui/or_fun_call.rs:458:15
+  --> tests/ui/or_fun_call.rs:462:15
    |
 LL |     let _ = x.and(g());
    |               ^^^^^^^^ help: try: `and_then(|_| g())`
 
-error: aborting due to 43 previous errors
+error: aborting due to 45 previous errors
 
diff --git a/src/tools/clippy/tests/ui/pattern_type_mismatch/auxiliary/external.rs b/src/tools/clippy/tests/ui/pattern_type_mismatch/auxiliary/external.rs
new file mode 100644
index 00000000000..cd27c5c74aa
--- /dev/null
+++ b/src/tools/clippy/tests/ui/pattern_type_mismatch/auxiliary/external.rs
@@ -0,0 +1,13 @@
+//! **FAKE** external macro crate.
+
+#[macro_export]
+macro_rules! macro_with_match {
+    ( $p:pat ) => {
+        let something = ();
+
+        match &something {
+            $p => true,
+            _ => false,
+        }
+    };
+}
diff --git a/src/tools/clippy/tests/ui/pattern_type_mismatch/syntax.rs b/src/tools/clippy/tests/ui/pattern_type_mismatch/syntax.rs
index 49ea1d3f7a6..aa988a577df 100644
--- a/src/tools/clippy/tests/ui/pattern_type_mismatch/syntax.rs
+++ b/src/tools/clippy/tests/ui/pattern_type_mismatch/syntax.rs
@@ -6,6 +6,9 @@
     clippy::single_match
 )]
 
+//@aux-build:external.rs
+use external::macro_with_match;
+
 fn main() {}
 
 fn syntax_match() {
@@ -159,3 +162,9 @@ fn macro_expansion() {
     let value = &Some(23);
     matching_macro!(value);
 }
+
+fn external_macro_expansion() {
+    macro_with_match! {
+        ()
+    };
+}
diff --git a/src/tools/clippy/tests/ui/pattern_type_mismatch/syntax.stderr b/src/tools/clippy/tests/ui/pattern_type_mismatch/syntax.stderr
index cd604d604c1..636841e0a21 100644
--- a/src/tools/clippy/tests/ui/pattern_type_mismatch/syntax.stderr
+++ b/src/tools/clippy/tests/ui/pattern_type_mismatch/syntax.stderr
@@ -1,5 +1,5 @@
 error: type of pattern does not match the expression type
-  --> tests/ui/pattern_type_mismatch/syntax.rs:16:9
+  --> tests/ui/pattern_type_mismatch/syntax.rs:19:9
    |
 LL |         Some(_) => (),
    |         ^^^^^^^
@@ -9,7 +9,7 @@ LL |         Some(_) => (),
    = help: to override `-D warnings` add `#[allow(clippy::pattern_type_mismatch)]`
 
 error: type of pattern does not match the expression type
-  --> tests/ui/pattern_type_mismatch/syntax.rs:36:12
+  --> tests/ui/pattern_type_mismatch/syntax.rs:39:12
    |
 LL |     if let Some(_) = ref_value {}
    |            ^^^^^^^
@@ -17,7 +17,7 @@ LL |     if let Some(_) = ref_value {}
    = help: use `*` to dereference the match expression or explicitly match against a `&_` pattern and adjust the enclosed variable bindings
 
 error: type of pattern does not match the expression type
-  --> tests/ui/pattern_type_mismatch/syntax.rs:48:15
+  --> tests/ui/pattern_type_mismatch/syntax.rs:51:15
    |
 LL |     while let Some(_) = ref_value {
    |               ^^^^^^^
@@ -25,7 +25,7 @@ LL |     while let Some(_) = ref_value {
    = help: use `*` to dereference the match expression or explicitly match against a `&_` pattern and adjust the enclosed variable bindings
 
 error: type of pattern does not match the expression type
-  --> tests/ui/pattern_type_mismatch/syntax.rs:68:9
+  --> tests/ui/pattern_type_mismatch/syntax.rs:71:9
    |
 LL |     for (_a, _b) in slice.iter() {}
    |         ^^^^^^^^
@@ -33,7 +33,7 @@ LL |     for (_a, _b) in slice.iter() {}
    = help: explicitly match against a `&_` pattern and adjust the enclosed variable bindings
 
 error: type of pattern does not match the expression type
-  --> tests/ui/pattern_type_mismatch/syntax.rs:79:9
+  --> tests/ui/pattern_type_mismatch/syntax.rs:82:9
    |
 LL |     let (_n, _m) = ref_value;
    |         ^^^^^^^^
@@ -41,7 +41,7 @@ LL |     let (_n, _m) = ref_value;
    = help: use `*` to dereference the match expression or explicitly match against a `&_` pattern and adjust the enclosed variable bindings
 
 error: type of pattern does not match the expression type
-  --> tests/ui/pattern_type_mismatch/syntax.rs:89:12
+  --> tests/ui/pattern_type_mismatch/syntax.rs:92:12
    |
 LL |     fn foo((_a, _b): &(i32, i32)) {}
    |            ^^^^^^^^
@@ -49,7 +49,7 @@ LL |     fn foo((_a, _b): &(i32, i32)) {}
    = help: explicitly match against a `&_` pattern and adjust the enclosed variable bindings
 
 error: type of pattern does not match the expression type
-  --> tests/ui/pattern_type_mismatch/syntax.rs:104:10
+  --> tests/ui/pattern_type_mismatch/syntax.rs:107:10
    |
 LL |     foo(|(_a, _b)| ());
    |          ^^^^^^^^
@@ -57,7 +57,7 @@ LL |     foo(|(_a, _b)| ());
    = help: explicitly match against a `&_` pattern and adjust the enclosed variable bindings
 
 error: type of pattern does not match the expression type
-  --> tests/ui/pattern_type_mismatch/syntax.rs:121:9
+  --> tests/ui/pattern_type_mismatch/syntax.rs:124:9
    |
 LL |         Some(_) => (),
    |         ^^^^^^^
@@ -65,7 +65,7 @@ LL |         Some(_) => (),
    = help: use `*` to dereference the match expression or explicitly match against a `&_` pattern and adjust the enclosed variable bindings
 
 error: type of pattern does not match the expression type
-  --> tests/ui/pattern_type_mismatch/syntax.rs:142:17
+  --> tests/ui/pattern_type_mismatch/syntax.rs:145:17
    |
 LL |                 Some(_) => (),
    |                 ^^^^^^^
diff --git a/src/tools/clippy/tests/ui/ptr_arg.rs b/src/tools/clippy/tests/ui/ptr_arg.rs
index 578641e910d..be14e0762ff 100644
--- a/src/tools/clippy/tests/ui/ptr_arg.rs
+++ b/src/tools/clippy/tests/ui/ptr_arg.rs
@@ -123,7 +123,7 @@ fn test_cow_with_ref(c: &Cow<[i32]>) {}
 //~^ ptr_arg
 
 fn test_cow(c: Cow<[i32]>) {
-    let _c = c;
+    let d = c;
 }
 
 trait Foo2 {
@@ -141,36 +141,36 @@ mod issue_5644 {
     use std::path::PathBuf;
 
     fn allowed(
-        #[allow(clippy::ptr_arg)] _v: &Vec<u32>,
-        #[allow(clippy::ptr_arg)] _s: &String,
-        #[allow(clippy::ptr_arg)] _p: &PathBuf,
-        #[allow(clippy::ptr_arg)] _c: &Cow<[i32]>,
-        #[expect(clippy::ptr_arg)] _expect: &Cow<[i32]>,
+        #[allow(clippy::ptr_arg)] v: &Vec<u32>,
+        #[allow(clippy::ptr_arg)] s: &String,
+        #[allow(clippy::ptr_arg)] p: &PathBuf,
+        #[allow(clippy::ptr_arg)] c: &Cow<[i32]>,
+        #[expect(clippy::ptr_arg)] expect: &Cow<[i32]>,
     ) {
     }
 
-    fn some_allowed(#[allow(clippy::ptr_arg)] _v: &Vec<u32>, _s: &String) {}
+    fn some_allowed(#[allow(clippy::ptr_arg)] v: &Vec<u32>, s: &String) {}
     //~^ ptr_arg
 
     struct S;
     impl S {
         fn allowed(
-            #[allow(clippy::ptr_arg)] _v: &Vec<u32>,
-            #[allow(clippy::ptr_arg)] _s: &String,
-            #[allow(clippy::ptr_arg)] _p: &PathBuf,
-            #[allow(clippy::ptr_arg)] _c: &Cow<[i32]>,
-            #[expect(clippy::ptr_arg)] _expect: &Cow<[i32]>,
+            #[allow(clippy::ptr_arg)] v: &Vec<u32>,
+            #[allow(clippy::ptr_arg)] s: &String,
+            #[allow(clippy::ptr_arg)] p: &PathBuf,
+            #[allow(clippy::ptr_arg)] c: &Cow<[i32]>,
+            #[expect(clippy::ptr_arg)] expect: &Cow<[i32]>,
         ) {
         }
     }
 
     trait T {
         fn allowed(
-            #[allow(clippy::ptr_arg)] _v: &Vec<u32>,
-            #[allow(clippy::ptr_arg)] _s: &String,
-            #[allow(clippy::ptr_arg)] _p: &PathBuf,
-            #[allow(clippy::ptr_arg)] _c: &Cow<[i32]>,
-            #[expect(clippy::ptr_arg)] _expect: &Cow<[i32]>,
+            #[allow(clippy::ptr_arg)] v: &Vec<u32>,
+            #[allow(clippy::ptr_arg)] s: &String,
+            #[allow(clippy::ptr_arg)] p: &PathBuf,
+            #[allow(clippy::ptr_arg)] c: &Cow<[i32]>,
+            #[expect(clippy::ptr_arg)] expect: &Cow<[i32]>,
         ) {
         }
     }
@@ -182,22 +182,22 @@ mod issue6509 {
     fn foo_vec(vec: &Vec<u8>) {
         //~^ ptr_arg
 
-        let _ = vec.clone().pop();
-        let _ = vec.clone().clone();
+        let a = vec.clone().pop();
+        let b = vec.clone().clone();
     }
 
     fn foo_path(path: &PathBuf) {
         //~^ ptr_arg
 
-        let _ = path.clone().pop();
-        let _ = path.clone().clone();
+        let c = path.clone().pop();
+        let d = path.clone().clone();
     }
 
-    fn foo_str(str: &PathBuf) {
+    fn foo_str(str: &String) {
         //~^ ptr_arg
 
-        let _ = str.clone().pop();
-        let _ = str.clone().clone();
+        let e = str.clone().pop();
+        let f = str.clone().clone();
     }
 }
 
@@ -340,8 +340,8 @@ mod issue_13308 {
         ToOwned::clone_into(source, destination);
     }
 
-    fn h1(_: &<String as Deref>::Target) {}
-    fn h2<T: Deref>(_: T, _: &T::Target) {}
+    fn h1(x: &<String as Deref>::Target) {}
+    fn h2<T: Deref>(x: T, y: &T::Target) {}
 
     // Other cases that are still ok to lint and ideally shouldn't regress
     fn good(v1: &String, v2: &String) {
@@ -352,3 +352,91 @@ mod issue_13308 {
         h2(String::new(), v2);
     }
 }
+
+mod issue_13489_and_13728 {
+    // This is a no-lint from now on.
+    fn foo(_x: &Vec<i32>) {
+        todo!();
+    }
+
+    // But this still gives us a lint.
+    fn foo_used(x: &Vec<i32>) {
+        //~^ ptr_arg
+
+        todo!();
+    }
+
+    // This is also a no-lint from now on.
+    fn foo_local(x: &Vec<i32>) {
+        let _y = x;
+
+        todo!();
+    }
+
+    // But this still gives us a lint.
+    fn foo_local_used(x: &Vec<i32>) {
+        //~^ ptr_arg
+
+        let y = x;
+
+        todo!();
+    }
+
+    // This only lints once from now on.
+    fn foofoo(_x: &Vec<i32>, y: &String) {
+        //~^ ptr_arg
+
+        todo!();
+    }
+
+    // And this is also a no-lint from now on.
+    fn foofoo_local(_x: &Vec<i32>, y: &String) {
+        let _z = y;
+
+        todo!();
+    }
+}
+
+mod issue_13489_and_13728_mut {
+    // This is a no-lint from now on.
+    fn bar(_x: &mut Vec<u32>) {
+        todo!()
+    }
+
+    // But this still gives us a lint.
+    fn bar_used(x: &mut Vec<u32>) {
+        //~^ ptr_arg
+
+        todo!()
+    }
+
+    // This is also a no-lint from now on.
+    fn bar_local(x: &mut Vec<u32>) {
+        let _y = x;
+
+        todo!()
+    }
+
+    // But this still gives us a lint.
+    fn bar_local_used(x: &mut Vec<u32>) {
+        //~^ ptr_arg
+
+        let y = x;
+
+        todo!()
+    }
+
+    // This only lints once from now on.
+    fn barbar(_x: &mut Vec<u32>, y: &mut String) {
+        //~^ ptr_arg
+
+        todo!()
+    }
+
+    // And this is also a no-lint from now on.
+    fn barbar_local(_x: &mut Vec<u32>, y: &mut String) {
+        let _z = y;
+
+        todo!()
+    }
+}
diff --git a/src/tools/clippy/tests/ui/ptr_arg.stderr b/src/tools/clippy/tests/ui/ptr_arg.stderr
index fd9ceddfe11..87235057349 100644
--- a/src/tools/clippy/tests/ui/ptr_arg.stderr
+++ b/src/tools/clippy/tests/ui/ptr_arg.stderr
@@ -127,10 +127,10 @@ LL | fn test_cow_with_ref(c: &Cow<[i32]>) {}
    |                         ^^^^^^^^^^^ help: change this to: `&[i32]`
 
 error: writing `&String` instead of `&str` involves a new object where a slice will do
-  --> tests/ui/ptr_arg.rs:152:66
+  --> tests/ui/ptr_arg.rs:152:64
    |
-LL |     fn some_allowed(#[allow(clippy::ptr_arg)] _v: &Vec<u32>, _s: &String) {}
-   |                                                                  ^^^^^^^ help: change this to: `&str`
+LL |     fn some_allowed(#[allow(clippy::ptr_arg)] v: &Vec<u32>, s: &String) {}
+   |                                                                ^^^^^^^ help: change this to: `&str`
 
 error: writing `&Vec` instead of `&[_]` involves a new object where a slice will do
   --> tests/ui/ptr_arg.rs:182:21
@@ -143,8 +143,8 @@ help: change this to
 LL ~     fn foo_vec(vec: &[u8]) {
 LL |
 LL |
-LL ~         let _ = vec.to_owned().pop();
-LL ~         let _ = vec.to_owned().clone();
+LL ~         let a = vec.to_owned().pop();
+LL ~         let b = vec.to_owned().clone();
    |
 
 error: writing `&PathBuf` instead of `&Path` involves a new object where a slice will do
@@ -158,23 +158,23 @@ help: change this to
 LL ~     fn foo_path(path: &Path) {
 LL |
 LL |
-LL ~         let _ = path.to_path_buf().pop();
-LL ~         let _ = path.to_path_buf().clone();
+LL ~         let c = path.to_path_buf().pop();
+LL ~         let d = path.to_path_buf().clone();
    |
 
-error: writing `&PathBuf` instead of `&Path` involves a new object where a slice will do
+error: writing `&String` instead of `&str` involves a new object where a slice will do
   --> tests/ui/ptr_arg.rs:196:21
    |
-LL |     fn foo_str(str: &PathBuf) {
-   |                     ^^^^^^^^
+LL |     fn foo_str(str: &String) {
+   |                     ^^^^^^^
    |
 help: change this to
    |
-LL ~     fn foo_str(str: &Path) {
+LL ~     fn foo_str(str: &str) {
 LL |
 LL |
-LL ~         let _ = str.to_path_buf().pop();
-LL ~         let _ = str.to_path_buf().clone();
+LL ~         let e = str.to_owned().pop();
+LL ~         let f = str.to_owned().clone();
    |
 
 error: writing `&mut Vec` instead of `&mut [_]` involves a new object where a slice will do
@@ -231,6 +231,42 @@ error: writing `&String` instead of `&str` involves a new object where a slice w
 LL |     fn good(v1: &String, v2: &String) {
    |                              ^^^^^^^ help: change this to: `&str`
 
+error: writing `&Vec` instead of `&[_]` involves a new object where a slice will do
+  --> tests/ui/ptr_arg.rs:363:20
+   |
+LL |     fn foo_used(x: &Vec<i32>) {
+   |                    ^^^^^^^^^ help: change this to: `&[i32]`
+
+error: writing `&Vec` instead of `&[_]` involves a new object where a slice will do
+  --> tests/ui/ptr_arg.rs:377:26
+   |
+LL |     fn foo_local_used(x: &Vec<i32>) {
+   |                          ^^^^^^^^^ help: change this to: `&[i32]`
+
+error: writing `&String` instead of `&str` involves a new object where a slice will do
+  --> tests/ui/ptr_arg.rs:386:33
+   |
+LL |     fn foofoo(_x: &Vec<i32>, y: &String) {
+   |                                 ^^^^^^^ help: change this to: `&str`
+
+error: writing `&mut Vec` instead of `&mut [_]` involves a new object where a slice will do
+  --> tests/ui/ptr_arg.rs:407:20
+   |
+LL |     fn bar_used(x: &mut Vec<u32>) {
+   |                    ^^^^^^^^^^^^^ help: change this to: `&mut [u32]`
+
+error: writing `&mut Vec` instead of `&mut [_]` involves a new object where a slice will do
+  --> tests/ui/ptr_arg.rs:421:26
+   |
+LL |     fn bar_local_used(x: &mut Vec<u32>) {
+   |                          ^^^^^^^^^^^^^ help: change this to: `&mut [u32]`
+
+error: writing `&mut String` instead of `&mut str` involves a new object where a slice will do
+  --> tests/ui/ptr_arg.rs:430:37
+   |
+LL |     fn barbar(_x: &mut Vec<u32>, y: &mut String) {
+   |                                     ^^^^^^^^^^^ help: change this to: `&mut str`
+
 error: eliding a lifetime that's named elsewhere is confusing
   --> tests/ui/ptr_arg.rs:314:36
    |
@@ -248,5 +284,5 @@ help: consistently use `'a`
 LL |     fn cow_good_ret_ty<'a>(input: &'a Cow<'a, str>) -> &'a str {
    |                                                         ++
 
-error: aborting due to 27 previous errors
+error: aborting due to 33 previous errors
 
diff --git a/src/tools/clippy/tests/ui/ptr_as_ptr.fixed b/src/tools/clippy/tests/ui/ptr_as_ptr.fixed
index 2033f31c1ee..71fea6144e7 100644
--- a/src/tools/clippy/tests/ui/ptr_as_ptr.fixed
+++ b/src/tools/clippy/tests/ui/ptr_as_ptr.fixed
@@ -219,3 +219,11 @@ mod null_entire_infer {
         //~^ ptr_as_ptr
     }
 }
+
+#[allow(clippy::transmute_null_to_fn)]
+fn issue15283() {
+    unsafe {
+        let _: fn() = std::mem::transmute(std::ptr::null::<u8>());
+        //~^ ptr_as_ptr
+    }
+}
diff --git a/src/tools/clippy/tests/ui/ptr_as_ptr.rs b/src/tools/clippy/tests/ui/ptr_as_ptr.rs
index 224d09b0eb6..4d507592a1e 100644
--- a/src/tools/clippy/tests/ui/ptr_as_ptr.rs
+++ b/src/tools/clippy/tests/ui/ptr_as_ptr.rs
@@ -219,3 +219,11 @@ mod null_entire_infer {
         //~^ ptr_as_ptr
     }
 }
+
+#[allow(clippy::transmute_null_to_fn)]
+fn issue15283() {
+    unsafe {
+        let _: fn() = std::mem::transmute(std::ptr::null::<()>() as *const u8);
+        //~^ ptr_as_ptr
+    }
+}
diff --git a/src/tools/clippy/tests/ui/ptr_as_ptr.stderr b/src/tools/clippy/tests/ui/ptr_as_ptr.stderr
index 66dae8e0135..adad159bb0f 100644
--- a/src/tools/clippy/tests/ui/ptr_as_ptr.stderr
+++ b/src/tools/clippy/tests/ui/ptr_as_ptr.stderr
@@ -201,5 +201,11 @@ error: `as` casting between raw pointers without changing their constness
 LL |         core::ptr::null() as _
    |         ^^^^^^^^^^^^^^^^^^^^^^ help: try call directly: `core::ptr::null()`
 
-error: aborting due to 33 previous errors
+error: `as` casting between raw pointers without changing their constness
+  --> tests/ui/ptr_as_ptr.rs:226:43
+   |
+LL |         let _: fn() = std::mem::transmute(std::ptr::null::<()>() as *const u8);
+   |                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try call directly: `std::ptr::null::<u8>()`
+
+error: aborting due to 34 previous errors
 
diff --git a/src/tools/clippy/tests/ui/range_plus_minus_one.fixed b/src/tools/clippy/tests/ui/range_plus_minus_one.fixed
index ee716ef3a6a..5c6da6d5aed 100644
--- a/src/tools/clippy/tests/ui/range_plus_minus_one.fixed
+++ b/src/tools/clippy/tests/ui/range_plus_minus_one.fixed
@@ -1,5 +1,9 @@
+#![warn(clippy::range_minus_one, clippy::range_plus_one)]
 #![allow(unused_parens)]
 #![allow(clippy::iter_with_drain)]
+
+use std::ops::{Index, IndexMut, Range, RangeBounds, RangeInclusive};
+
 fn f() -> usize {
     42
 }
@@ -20,8 +24,6 @@ macro_rules! macro_minus_one {
     };
 }
 
-#[warn(clippy::range_plus_one)]
-#[warn(clippy::range_minus_one)]
 fn main() {
     for _ in 0..2 {}
     for _ in 0..=2 {}
@@ -45,15 +47,13 @@ fn main() {
     //~^ range_plus_one
     for _ in 0..=(1 + f()) {}
 
+    // Those are not linted, as in the general case we cannot be sure that the exact type won't be
+    // important.
     let _ = ..11 - 1;
-    let _ = ..11;
-    //~^ range_minus_one
-    let _ = ..11;
-    //~^ range_minus_one
-    let _ = (1..=11);
-    //~^ range_plus_one
-    let _ = ((f() + 1)..=f());
-    //~^ range_plus_one
+    let _ = ..=11 - 1;
+    let _ = ..=(11 - 1);
+    let _ = (1..11 + 1);
+    let _ = (f() + 1)..(f() + 1);
 
     const ONE: usize = 1;
     // integer consts are linted, too
@@ -65,4 +65,118 @@ fn main() {
 
     macro_plus_one!(5);
     macro_minus_one!(5);
+
+    // As an instance of `Iterator`
+    (1..=10).for_each(|_| {});
+    //~^ range_plus_one
+
+    // As an instance of `IntoIterator`
+    #[allow(clippy::useless_conversion)]
+    (1..=10).into_iter().for_each(|_| {});
+    //~^ range_plus_one
+
+    // As an instance of `RangeBounds`
+    {
+        let _ = (1..=10).start_bound();
+        //~^ range_plus_one
+    }
+
+    // As a `SliceIndex`
+    let a = [10, 20, 30];
+    let _ = &a[1..=1];
+    //~^ range_plus_one
+
+    // As method call argument
+    vec.drain(2..=3);
+    //~^ range_plus_one
+
+    // As function call argument
+    take_arg(10..=20);
+    //~^ range_plus_one
+
+    // As function call argument inside a block
+    take_arg({ 10..=20 });
+    //~^ range_plus_one
+
+    // Do not lint in case types are unified
+    take_arg(if true { 10..20 } else { 10..20 + 1 });
+
+    // Do not lint, as the same type is used for both parameters
+    take_args(10..20 + 1, 10..21);
+
+    // Do not lint, as the range type is also used indirectly in second parameter
+    take_arg_and_struct(10..20 + 1, S { t: 1..2 });
+
+    // As target of `IndexMut`
+    let mut a = [10, 20, 30];
+    a[0..=2][0] = 1;
+    //~^ range_plus_one
+}
+
+fn take_arg<T: Iterator<Item = u32>>(_: T) {}
+fn take_args<T: Iterator<Item = u32>>(_: T, _: T) {}
+
+struct S<T> {
+    t: T,
+}
+fn take_arg_and_struct<T: Iterator<Item = u32>>(_: T, _: S<T>) {}
+
+fn no_index_by_range_inclusive(a: usize) {
+    struct S;
+
+    impl Index<Range<usize>> for S {
+        type Output = [u32];
+        fn index(&self, _: Range<usize>) -> &Self::Output {
+            &[]
+        }
+    }
+
+    _ = &S[0..a + 1];
+}
+
+fn no_index_mut_with_switched_range(a: usize) {
+    struct S(u32);
+
+    impl Index<Range<usize>> for S {
+        type Output = u32;
+        fn index(&self, _: Range<usize>) -> &Self::Output {
+            &self.0
+        }
+    }
+
+    impl IndexMut<Range<usize>> for S {
+        fn index_mut(&mut self, _: Range<usize>) -> &mut Self::Output {
+            &mut self.0
+        }
+    }
+
+    impl Index<RangeInclusive<usize>> for S {
+        type Output = u32;
+        fn index(&self, _: RangeInclusive<usize>) -> &Self::Output {
+            &self.0
+        }
+    }
+
+    S(2)[0..a + 1] = 3;
+}
+
+fn issue9908() {
+    // Simplified test case
+    let _ = || 0..=1;
+
+    // Original test case
+    let full_length = 1024;
+    let range = {
+        // do some stuff, omit here
+        None
+    };
+
+    let range = range.map(|(s, t)| s..=t).unwrap_or(0..=(full_length - 1));
+
+    assert_eq!(range, 0..=1023);
+}
+
+fn issue9908_2(n: usize) -> usize {
+    (1..n).sum()
+    //~^ range_minus_one
 }
diff --git a/src/tools/clippy/tests/ui/range_plus_minus_one.rs b/src/tools/clippy/tests/ui/range_plus_minus_one.rs
index f2d5ae2c150..7172da6034b 100644
--- a/src/tools/clippy/tests/ui/range_plus_minus_one.rs
+++ b/src/tools/clippy/tests/ui/range_plus_minus_one.rs
@@ -1,5 +1,9 @@
+#![warn(clippy::range_minus_one, clippy::range_plus_one)]
 #![allow(unused_parens)]
 #![allow(clippy::iter_with_drain)]
+
+use std::ops::{Index, IndexMut, Range, RangeBounds, RangeInclusive};
+
 fn f() -> usize {
     42
 }
@@ -20,8 +24,6 @@ macro_rules! macro_minus_one {
     };
 }
 
-#[warn(clippy::range_plus_one)]
-#[warn(clippy::range_minus_one)]
 fn main() {
     for _ in 0..2 {}
     for _ in 0..=2 {}
@@ -45,15 +47,13 @@ fn main() {
     //~^ range_plus_one
     for _ in 0..=(1 + f()) {}
 
+    // Those are not linted, as in the general case we cannot be sure that the exact type won't be
+    // important.
     let _ = ..11 - 1;
     let _ = ..=11 - 1;
-    //~^ range_minus_one
     let _ = ..=(11 - 1);
-    //~^ range_minus_one
     let _ = (1..11 + 1);
-    //~^ range_plus_one
     let _ = (f() + 1)..(f() + 1);
-    //~^ range_plus_one
 
     const ONE: usize = 1;
     // integer consts are linted, too
@@ -65,4 +65,118 @@ fn main() {
 
     macro_plus_one!(5);
     macro_minus_one!(5);
+
+    // As an instance of `Iterator`
+    (1..10 + 1).for_each(|_| {});
+    //~^ range_plus_one
+
+    // As an instance of `IntoIterator`
+    #[allow(clippy::useless_conversion)]
+    (1..10 + 1).into_iter().for_each(|_| {});
+    //~^ range_plus_one
+
+    // As an instance of `RangeBounds`
+    {
+        let _ = (1..10 + 1).start_bound();
+        //~^ range_plus_one
+    }
+
+    // As a `SliceIndex`
+    let a = [10, 20, 30];
+    let _ = &a[1..1 + 1];
+    //~^ range_plus_one
+
+    // As method call argument
+    vec.drain(2..3 + 1);
+    //~^ range_plus_one
+
+    // As function call argument
+    take_arg(10..20 + 1);
+    //~^ range_plus_one
+
+    // As function call argument inside a block
+    take_arg({ 10..20 + 1 });
+    //~^ range_plus_one
+
+    // Do not lint in case types are unified
+    take_arg(if true { 10..20 } else { 10..20 + 1 });
+
+    // Do not lint, as the same type is used for both parameters
+    take_args(10..20 + 1, 10..21);
+
+    // Do not lint, as the range type is also used indirectly in second parameter
+    take_arg_and_struct(10..20 + 1, S { t: 1..2 });
+
+    // As target of `IndexMut`
+    let mut a = [10, 20, 30];
+    a[0..2 + 1][0] = 1;
+    //~^ range_plus_one
+}
+
+fn take_arg<T: Iterator<Item = u32>>(_: T) {}
+fn take_args<T: Iterator<Item = u32>>(_: T, _: T) {}
+
+struct S<T> {
+    t: T,
+}
+fn take_arg_and_struct<T: Iterator<Item = u32>>(_: T, _: S<T>) {}
+
+fn no_index_by_range_inclusive(a: usize) {
+    struct S;
+
+    impl Index<Range<usize>> for S {
+        type Output = [u32];
+        fn index(&self, _: Range<usize>) -> &Self::Output {
+            &[]
+        }
+    }
+
+    _ = &S[0..a + 1];
+}
+
+fn no_index_mut_with_switched_range(a: usize) {
+    struct S(u32);
+
+    impl Index<Range<usize>> for S {
+        type Output = u32;
+        fn index(&self, _: Range<usize>) -> &Self::Output {
+            &self.0
+        }
+    }
+
+    impl IndexMut<Range<usize>> for S {
+        fn index_mut(&mut self, _: Range<usize>) -> &mut Self::Output {
+            &mut self.0
+        }
+    }
+
+    impl Index<RangeInclusive<usize>> for S {
+        type Output = u32;
+        fn index(&self, _: RangeInclusive<usize>) -> &Self::Output {
+            &self.0
+        }
+    }
+
+    S(2)[0..a + 1] = 3;
+}
+
+fn issue9908() {
+    // Simplified test case
+    let _ = || 0..=1;
+
+    // Original test case
+    let full_length = 1024;
+    let range = {
+        // do some stuff, omit here
+        None
+    };
+
+    let range = range.map(|(s, t)| s..=t).unwrap_or(0..=(full_length - 1));
+
+    assert_eq!(range, 0..=1023);
+}
+
+fn issue9908_2(n: usize) -> usize {
+    (1..=n - 1).sum()
+    //~^ range_minus_one
 }
diff --git a/src/tools/clippy/tests/ui/range_plus_minus_one.stderr b/src/tools/clippy/tests/ui/range_plus_minus_one.stderr
index 9b23a8b8c0b..a419d935bd6 100644
--- a/src/tools/clippy/tests/ui/range_plus_minus_one.stderr
+++ b/src/tools/clippy/tests/ui/range_plus_minus_one.stderr
@@ -1,5 +1,5 @@
 error: an inclusive range would be more readable
-  --> tests/ui/range_plus_minus_one.rs:29:14
+  --> tests/ui/range_plus_minus_one.rs:31:14
    |
 LL |     for _ in 0..3 + 1 {}
    |              ^^^^^^^^ help: use: `0..=3`
@@ -8,55 +8,85 @@ LL |     for _ in 0..3 + 1 {}
    = help: to override `-D warnings` add `#[allow(clippy::range_plus_one)]`
 
 error: an inclusive range would be more readable
-  --> tests/ui/range_plus_minus_one.rs:33:14
+  --> tests/ui/range_plus_minus_one.rs:35:14
    |
 LL |     for _ in 0..1 + 5 {}
    |              ^^^^^^^^ help: use: `0..=5`
 
 error: an inclusive range would be more readable
-  --> tests/ui/range_plus_minus_one.rs:37:14
+  --> tests/ui/range_plus_minus_one.rs:39:14
    |
 LL |     for _ in 1..1 + 1 {}
    |              ^^^^^^^^ help: use: `1..=1`
 
 error: an inclusive range would be more readable
-  --> tests/ui/range_plus_minus_one.rs:44:14
+  --> tests/ui/range_plus_minus_one.rs:46:14
    |
 LL |     for _ in 0..(1 + f()) {}
    |              ^^^^^^^^^^^^ help: use: `0..=f()`
 
-error: an exclusive range would be more readable
-  --> tests/ui/range_plus_minus_one.rs:49:13
+error: an inclusive range would be more readable
+  --> tests/ui/range_plus_minus_one.rs:60:14
    |
-LL |     let _ = ..=11 - 1;
-   |             ^^^^^^^^^ help: use: `..11`
+LL |     for _ in 1..ONE + ONE {}
+   |              ^^^^^^^^^^^^ help: use: `1..=ONE`
+
+error: an inclusive range would be more readable
+  --> tests/ui/range_plus_minus_one.rs:70:5
    |
-   = note: `-D clippy::range-minus-one` implied by `-D warnings`
-   = help: to override `-D warnings` add `#[allow(clippy::range_minus_one)]`
+LL |     (1..10 + 1).for_each(|_| {});
+   |     ^^^^^^^^^^^ help: use: `(1..=10)`
 
-error: an exclusive range would be more readable
-  --> tests/ui/range_plus_minus_one.rs:51:13
+error: an inclusive range would be more readable
+  --> tests/ui/range_plus_minus_one.rs:75:5
    |
-LL |     let _ = ..=(11 - 1);
-   |             ^^^^^^^^^^^ help: use: `..11`
+LL |     (1..10 + 1).into_iter().for_each(|_| {});
+   |     ^^^^^^^^^^^ help: use: `(1..=10)`
 
 error: an inclusive range would be more readable
-  --> tests/ui/range_plus_minus_one.rs:53:13
+  --> tests/ui/range_plus_minus_one.rs:80:17
    |
-LL |     let _ = (1..11 + 1);
-   |             ^^^^^^^^^^^ help: use: `(1..=11)`
+LL |         let _ = (1..10 + 1).start_bound();
+   |                 ^^^^^^^^^^^ help: use: `(1..=10)`
 
 error: an inclusive range would be more readable
-  --> tests/ui/range_plus_minus_one.rs:55:13
+  --> tests/ui/range_plus_minus_one.rs:86:16
    |
-LL |     let _ = (f() + 1)..(f() + 1);
-   |             ^^^^^^^^^^^^^^^^^^^^ help: use: `((f() + 1)..=f())`
+LL |     let _ = &a[1..1 + 1];
+   |                ^^^^^^^^ help: use: `1..=1`
 
 error: an inclusive range would be more readable
-  --> tests/ui/range_plus_minus_one.rs:60:14
+  --> tests/ui/range_plus_minus_one.rs:90:15
    |
-LL |     for _ in 1..ONE + ONE {}
-   |              ^^^^^^^^^^^^ help: use: `1..=ONE`
+LL |     vec.drain(2..3 + 1);
+   |               ^^^^^^^^ help: use: `2..=3`
+
+error: an inclusive range would be more readable
+  --> tests/ui/range_plus_minus_one.rs:94:14
+   |
+LL |     take_arg(10..20 + 1);
+   |              ^^^^^^^^^^ help: use: `10..=20`
+
+error: an inclusive range would be more readable
+  --> tests/ui/range_plus_minus_one.rs:98:16
+   |
+LL |     take_arg({ 10..20 + 1 });
+   |                ^^^^^^^^^^ help: use: `10..=20`
+
+error: an inclusive range would be more readable
+  --> tests/ui/range_plus_minus_one.rs:112:7
+   |
+LL |     a[0..2 + 1][0] = 1;
+   |       ^^^^^^^^ help: use: `0..=2`
+
+error: an exclusive range would be more readable
+  --> tests/ui/range_plus_minus_one.rs:180:5
+   |
+LL |     (1..=n - 1).sum()
+   |     ^^^^^^^^^^^ help: use: `(1..n)`
+   |
+   = note: `-D clippy::range-minus-one` implied by `-D warnings`
+   = help: to override `-D warnings` add `#[allow(clippy::range_minus_one)]`
 
-error: aborting due to 9 previous errors
+error: aborting due to 14 previous errors
 
diff --git a/src/tools/clippy/tests/ui/single_match_else_deref_patterns.fixed b/src/tools/clippy/tests/ui/single_match_else_deref_patterns.fixed
new file mode 100644
index 00000000000..7a9f8063096
--- /dev/null
+++ b/src/tools/clippy/tests/ui/single_match_else_deref_patterns.fixed
@@ -0,0 +1,53 @@
+#![feature(deref_patterns)]
+#![allow(
+    incomplete_features,
+    clippy::eq_op,
+    clippy::op_ref,
+    clippy::deref_addrof,
+    clippy::borrow_deref_ref,
+    clippy::needless_if
+)]
+#![deny(clippy::single_match_else)]
+
+fn string() {
+    if *"" == *"" {}
+
+    if *&*&*&*"" == *"" {}
+
+    if ***&&"" == *"" {}
+
+    if *&*&*"" == *"" {}
+
+    if **&&*"" == *"" {}
+}
+
+fn int() {
+    if &&&1 == &&&2 { unreachable!() } else {
+        // ok
+    }
+    //~^^^^^^ single_match_else
+    if &&1 == &&2 { unreachable!() } else {
+        // ok
+    }
+    //~^^^^^^ single_match_else
+    if &&1 == &&2 { unreachable!() } else {
+        // ok
+    }
+    //~^^^^^^ single_match_else
+    if &1 == &2 { unreachable!() } else {
+        // ok
+    }
+    //~^^^^^^ single_match_else
+    if &1 == &2 { unreachable!() } else {
+        // ok
+    }
+    //~^^^^^^ single_match_else
+    if 1 == 2 { unreachable!() } else {
+        // ok
+    }
+    //~^^^^^^ single_match_else
+    if 1 == 2 { unreachable!() } else {
+        // ok
+    }
+    //~^^^^^^ single_match_else
+}
diff --git a/src/tools/clippy/tests/ui/single_match_else_deref_patterns.rs b/src/tools/clippy/tests/ui/single_match_else_deref_patterns.rs
new file mode 100644
index 00000000000..ef19c7cbde2
--- /dev/null
+++ b/src/tools/clippy/tests/ui/single_match_else_deref_patterns.rs
@@ -0,0 +1,94 @@
+#![feature(deref_patterns)]
+#![allow(
+    incomplete_features,
+    clippy::eq_op,
+    clippy::op_ref,
+    clippy::deref_addrof,
+    clippy::borrow_deref_ref,
+    clippy::needless_if
+)]
+#![deny(clippy::single_match_else)]
+
+fn string() {
+    match *"" {
+        //~^ single_match
+        "" => {},
+        _ => {},
+    }
+
+    match *&*&*&*"" {
+        //~^ single_match
+        "" => {},
+        _ => {},
+    }
+
+    match ***&&"" {
+        //~^ single_match
+        "" => {},
+        _ => {},
+    }
+
+    match *&*&*"" {
+        //~^ single_match
+        "" => {},
+        _ => {},
+    }
+
+    match **&&*"" {
+        //~^ single_match
+        "" => {},
+        _ => {},
+    }
+}
+
+fn int() {
+    match &&&1 {
+        &&&2 => unreachable!(),
+        _ => {
+            // ok
+        },
+    }
+    //~^^^^^^ single_match_else
+    match &&&1 {
+        &&2 => unreachable!(),
+        _ => {
+            // ok
+        },
+    }
+    //~^^^^^^ single_match_else
+    match &&1 {
+        &&2 => unreachable!(),
+        _ => {
+            // ok
+        },
+    }
+    //~^^^^^^ single_match_else
+    match &&&1 {
+        &2 => unreachable!(),
+        _ => {
+            // ok
+        },
+    }
+    //~^^^^^^ single_match_else
+    match &&1 {
+        &2 => unreachable!(),
+        _ => {
+            // ok
+        },
+    }
+    //~^^^^^^ single_match_else
+    match &&&1 {
+        2 => unreachable!(),
+        _ => {
+            // ok
+        },
+    }
+    //~^^^^^^ single_match_else
+    match &&1 {
+        2 => unreachable!(),
+        _ => {
+            // ok
+        },
+    }
+    //~^^^^^^ single_match_else
+}
diff --git a/src/tools/clippy/tests/ui/single_match_else_deref_patterns.stderr b/src/tools/clippy/tests/ui/single_match_else_deref_patterns.stderr
new file mode 100644
index 00000000000..a47df55459b
--- /dev/null
+++ b/src/tools/clippy/tests/ui/single_match_else_deref_patterns.stderr
@@ -0,0 +1,188 @@
+error: you seem to be trying to use `match` for an equality check. Consider using `if`
+  --> tests/ui/single_match_else_deref_patterns.rs:13:5
+   |
+LL | /     match *"" {
+LL | |
+LL | |         "" => {},
+LL | |         _ => {},
+LL | |     }
+   | |_____^ help: try: `if *"" == *"" {}`
+   |
+   = note: you might want to preserve the comments from inside the `match`
+   = note: `-D clippy::single-match` implied by `-D warnings`
+   = help: to override `-D warnings` add `#[allow(clippy::single_match)]`
+
+error: you seem to be trying to use `match` for an equality check. Consider using `if`
+  --> tests/ui/single_match_else_deref_patterns.rs:19:5
+   |
+LL | /     match *&*&*&*"" {
+LL | |
+LL | |         "" => {},
+LL | |         _ => {},
+LL | |     }
+   | |_____^ help: try: `if *&*&*&*"" == *"" {}`
+   |
+   = note: you might want to preserve the comments from inside the `match`
+
+error: you seem to be trying to use `match` for an equality check. Consider using `if`
+  --> tests/ui/single_match_else_deref_patterns.rs:25:5
+   |
+LL | /     match ***&&"" {
+LL | |
+LL | |         "" => {},
+LL | |         _ => {},
+LL | |     }
+   | |_____^ help: try: `if ***&&"" == *"" {}`
+   |
+   = note: you might want to preserve the comments from inside the `match`
+
+error: you seem to be trying to use `match` for an equality check. Consider using `if`
+  --> tests/ui/single_match_else_deref_patterns.rs:31:5
+   |
+LL | /     match *&*&*"" {
+LL | |
+LL | |         "" => {},
+LL | |         _ => {},
+LL | |     }
+   | |_____^ help: try: `if *&*&*"" == *"" {}`
+   |
+   = note: you might want to preserve the comments from inside the `match`
+
+error: you seem to be trying to use `match` for an equality check. Consider using `if`
+  --> tests/ui/single_match_else_deref_patterns.rs:37:5
+   |
+LL | /     match **&&*"" {
+LL | |
+LL | |         "" => {},
+LL | |         _ => {},
+LL | |     }
+   | |_____^ help: try: `if **&&*"" == *"" {}`
+   |
+   = note: you might want to preserve the comments from inside the `match`
+
+error: you seem to be trying to use `match` for an equality check. Consider using `if`
+  --> tests/ui/single_match_else_deref_patterns.rs:45:5
+   |
+LL | /     match &&&1 {
+LL | |         &&&2 => unreachable!(),
+LL | |         _ => {
+...  |
+LL | |     }
+   | |_____^
+   |
+note: the lint level is defined here
+  --> tests/ui/single_match_else_deref_patterns.rs:10:9
+   |
+LL | #![deny(clippy::single_match_else)]
+   |         ^^^^^^^^^^^^^^^^^^^^^^^^^
+help: try
+   |
+LL ~     if &&&1 == &&&2 { unreachable!() } else {
+LL +         // ok
+LL +     }
+   |
+
+error: you seem to be trying to use `match` for an equality check. Consider using `if`
+  --> tests/ui/single_match_else_deref_patterns.rs:52:5
+   |
+LL | /     match &&&1 {
+LL | |         &&2 => unreachable!(),
+LL | |         _ => {
+...  |
+LL | |     }
+   | |_____^
+   |
+help: try
+   |
+LL ~     if &&1 == &&2 { unreachable!() } else {
+LL +         // ok
+LL +     }
+   |
+
+error: you seem to be trying to use `match` for an equality check. Consider using `if`
+  --> tests/ui/single_match_else_deref_patterns.rs:59:5
+   |
+LL | /     match &&1 {
+LL | |         &&2 => unreachable!(),
+LL | |         _ => {
+...  |
+LL | |     }
+   | |_____^
+   |
+help: try
+   |
+LL ~     if &&1 == &&2 { unreachable!() } else {
+LL +         // ok
+LL +     }
+   |
+
+error: you seem to be trying to use `match` for an equality check. Consider using `if`
+  --> tests/ui/single_match_else_deref_patterns.rs:66:5
+   |
+LL | /     match &&&1 {
+LL | |         &2 => unreachable!(),
+LL | |         _ => {
+...  |
+LL | |     }
+   | |_____^
+   |
+help: try
+   |
+LL ~     if &1 == &2 { unreachable!() } else {
+LL +         // ok
+LL +     }
+   |
+
+error: you seem to be trying to use `match` for an equality check. Consider using `if`
+  --> tests/ui/single_match_else_deref_patterns.rs:73:5
+   |
+LL | /     match &&1 {
+LL | |         &2 => unreachable!(),
+LL | |         _ => {
+...  |
+LL | |     }
+   | |_____^
+   |
+help: try
+   |
+LL ~     if &1 == &2 { unreachable!() } else {
+LL +         // ok
+LL +     }
+   |
+
+error: you seem to be trying to use `match` for an equality check. Consider using `if`
+  --> tests/ui/single_match_else_deref_patterns.rs:80:5
+   |
+LL | /     match &&&1 {
+LL | |         2 => unreachable!(),
+LL | |         _ => {
+...  |
+LL | |     }
+   | |_____^
+   |
+help: try
+   |
+LL ~     if 1 == 2 { unreachable!() } else {
+LL +         // ok
+LL +     }
+   |
+
+error: you seem to be trying to use `match` for an equality check. Consider using `if`
+  --> tests/ui/single_match_else_deref_patterns.rs:87:5
+   |
+LL | /     match &&1 {
+LL | |         2 => unreachable!(),
+LL | |         _ => {
+...  |
+LL | |     }
+   | |_____^
+   |
+help: try
+   |
+LL ~     if 1 == 2 { unreachable!() } else {
+LL +         // ok
+LL +     }
+   |
+
+error: aborting due to 12 previous errors
+
diff --git a/src/tools/clippy/tests/ui/strlen_on_c_strings.fixed b/src/tools/clippy/tests/ui/strlen_on_c_strings.fixed
index 31ed1cf03a2..17c1b541f77 100644
--- a/src/tools/clippy/tests/ui/strlen_on_c_strings.fixed
+++ b/src/tools/clippy/tests/ui/strlen_on_c_strings.fixed
@@ -1,7 +1,5 @@
 #![warn(clippy::strlen_on_c_strings)]
 #![allow(dead_code, clippy::manual_c_str_literals)]
-#![feature(rustc_private)]
-extern crate libc;
 
 #[allow(unused)]
 use libc::strlen;
diff --git a/src/tools/clippy/tests/ui/strlen_on_c_strings.rs b/src/tools/clippy/tests/ui/strlen_on_c_strings.rs
index 0f3798c9fd8..c641422f5df 100644
--- a/src/tools/clippy/tests/ui/strlen_on_c_strings.rs
+++ b/src/tools/clippy/tests/ui/strlen_on_c_strings.rs
@@ -1,7 +1,5 @@
 #![warn(clippy::strlen_on_c_strings)]
 #![allow(dead_code, clippy::manual_c_str_literals)]
-#![feature(rustc_private)]
-extern crate libc;
 
 #[allow(unused)]
 use libc::strlen;
diff --git a/src/tools/clippy/tests/ui/strlen_on_c_strings.stderr b/src/tools/clippy/tests/ui/strlen_on_c_strings.stderr
index b8619fa2df3..84a93b99ee3 100644
--- a/src/tools/clippy/tests/ui/strlen_on_c_strings.stderr
+++ b/src/tools/clippy/tests/ui/strlen_on_c_strings.stderr
@@ -1,5 +1,5 @@
 error: using `libc::strlen` on a `CString` or `CStr` value
-  --> tests/ui/strlen_on_c_strings.rs:13:13
+  --> tests/ui/strlen_on_c_strings.rs:11:13
    |
 LL |     let _ = unsafe { libc::strlen(cstring.as_ptr()) };
    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `cstring.as_bytes().len()`
@@ -8,37 +8,37 @@ LL |     let _ = unsafe { libc::strlen(cstring.as_ptr()) };
    = help: to override `-D warnings` add `#[allow(clippy::strlen_on_c_strings)]`
 
 error: using `libc::strlen` on a `CString` or `CStr` value
-  --> tests/ui/strlen_on_c_strings.rs:18:13
+  --> tests/ui/strlen_on_c_strings.rs:16:13
    |
 LL |     let _ = unsafe { libc::strlen(cstr.as_ptr()) };
    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `cstr.to_bytes().len()`
 
 error: using `libc::strlen` on a `CString` or `CStr` value
-  --> tests/ui/strlen_on_c_strings.rs:21:13
+  --> tests/ui/strlen_on_c_strings.rs:19:13
    |
 LL |     let _ = unsafe { strlen(cstr.as_ptr()) };
    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `cstr.to_bytes().len()`
 
 error: using `libc::strlen` on a `CString` or `CStr` value
-  --> tests/ui/strlen_on_c_strings.rs:25:22
+  --> tests/ui/strlen_on_c_strings.rs:23:22
    |
 LL |     let _ = unsafe { strlen((*pcstr).as_ptr()) };
    |                      ^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `(*pcstr).to_bytes().len()`
 
 error: using `libc::strlen` on a `CString` or `CStr` value
-  --> tests/ui/strlen_on_c_strings.rs:31:22
+  --> tests/ui/strlen_on_c_strings.rs:29:22
    |
 LL |     let _ = unsafe { strlen(unsafe_identity(cstr).as_ptr()) };
    |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `unsafe_identity(cstr).to_bytes().len()`
 
 error: using `libc::strlen` on a `CString` or `CStr` value
-  --> tests/ui/strlen_on_c_strings.rs:33:13
+  --> tests/ui/strlen_on_c_strings.rs:31:13
    |
 LL |     let _ = unsafe { strlen(unsafe { unsafe_identity(cstr) }.as_ptr()) };
    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `unsafe { unsafe_identity(cstr) }.to_bytes().len()`
 
 error: using `libc::strlen` on a `CString` or `CStr` value
-  --> tests/ui/strlen_on_c_strings.rs:37:22
+  --> tests/ui/strlen_on_c_strings.rs:35:22
    |
 LL |     let _ = unsafe { strlen(f(cstr).as_ptr()) };
    |                      ^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `f(cstr).to_bytes().len()`
diff --git a/src/tools/clippy/tests/ui/unsafe_derive_deserialize.rs b/src/tools/clippy/tests/ui/unsafe_derive_deserialize.rs
index 14371bc203b..d0022f3b6d9 100644
--- a/src/tools/clippy/tests/ui/unsafe_derive_deserialize.rs
+++ b/src/tools/clippy/tests/ui/unsafe_derive_deserialize.rs
@@ -82,3 +82,32 @@ impl H {
 }
 
 fn main() {}
+
+mod issue15120 {
+    macro_rules! uns {
+        ($e:expr) => {
+            unsafe { $e }
+        };
+    }
+
+    #[derive(serde::Deserialize)]
+    struct Foo;
+
+    impl Foo {
+        fn foo(&self) {
+            // Do not lint if `unsafe` comes from the `core::pin::pin!()` macro
+            std::pin::pin!(());
+        }
+    }
+
+    //~v unsafe_derive_deserialize
+    #[derive(serde::Deserialize)]
+    struct Bar;
+
+    impl Bar {
+        fn bar(&self) {
+            // Lint if `unsafe` comes from the another macro
+            _ = uns!(42);
+        }
+    }
+}
diff --git a/src/tools/clippy/tests/ui/unsafe_derive_deserialize.stderr b/src/tools/clippy/tests/ui/unsafe_derive_deserialize.stderr
index f2d4429f707..4b5dd6e61fc 100644
--- a/src/tools/clippy/tests/ui/unsafe_derive_deserialize.stderr
+++ b/src/tools/clippy/tests/ui/unsafe_derive_deserialize.stderr
@@ -36,5 +36,14 @@ LL | #[derive(Deserialize)]
    = help: consider implementing `serde::Deserialize` manually. See https://serde.rs/impl-deserialize.html
    = note: this error originates in the derive macro `Deserialize` (in Nightly builds, run with -Z macro-backtrace for more info)
 
-error: aborting due to 4 previous errors
+error: you are deriving `serde::Deserialize` on a type that has methods using `unsafe`
+  --> tests/ui/unsafe_derive_deserialize.rs:104:14
+   |
+LL |     #[derive(serde::Deserialize)]
+   |              ^^^^^^^^^^^^^^^^^^
+   |
+   = help: consider implementing `serde::Deserialize` manually. See https://serde.rs/impl-deserialize.html
+   = note: this error originates in the derive macro `serde::Deserialize` (in Nightly builds, run with -Z macro-backtrace for more info)
+
+error: aborting due to 5 previous errors
 
diff --git a/src/tools/clippy/tests/ui/unused_async.rs b/src/tools/clippy/tests/ui/unused_async.rs
index 433459253dd..7a0be825a2d 100644
--- a/src/tools/clippy/tests/ui/unused_async.rs
+++ b/src/tools/clippy/tests/ui/unused_async.rs
@@ -127,3 +127,13 @@ mod issue14704 {
         async fn cancel(self: Arc<Self>) {}
     }
 }
+
+mod issue15305 {
+    async fn todo_task() -> Result<(), String> {
+        todo!("Implement task");
+    }
+
+    async fn unimplemented_task() -> Result<(), String> {
+        unimplemented!("Implement task");
+    }
+}
diff --git a/src/tools/clippy/tests/ui/unused_trait_names.fixed b/src/tools/clippy/tests/ui/unused_trait_names.fixed
index 17e32ddfd9d..6abbed01bb0 100644
--- a/src/tools/clippy/tests/ui/unused_trait_names.fixed
+++ b/src/tools/clippy/tests/ui/unused_trait_names.fixed
@@ -200,11 +200,11 @@ fn msrv_1_33() {
     MyStruct.do_things();
 }
 
+// Linting inside macro expansion is no longer supported
 mod lint_inside_macro_expansion_bad {
     macro_rules! foo {
         () => {
-            use std::any::Any as _;
-            //~^ unused_trait_names
+            use std::any::Any;
             fn bar() {
                 "bar".type_id();
             }
diff --git a/src/tools/clippy/tests/ui/unused_trait_names.rs b/src/tools/clippy/tests/ui/unused_trait_names.rs
index 3cf8597e535..4a06f062dc3 100644
--- a/src/tools/clippy/tests/ui/unused_trait_names.rs
+++ b/src/tools/clippy/tests/ui/unused_trait_names.rs
@@ -200,11 +200,11 @@ fn msrv_1_33() {
     MyStruct.do_things();
 }
 
+// Linting inside macro expansion is no longer supported
 mod lint_inside_macro_expansion_bad {
     macro_rules! foo {
         () => {
             use std::any::Any;
-            //~^ unused_trait_names
             fn bar() {
                 "bar".type_id();
             }
diff --git a/src/tools/clippy/tests/ui/unused_trait_names.stderr b/src/tools/clippy/tests/ui/unused_trait_names.stderr
index 3183289d853..28067e17414 100644
--- a/src/tools/clippy/tests/ui/unused_trait_names.stderr
+++ b/src/tools/clippy/tests/ui/unused_trait_names.stderr
@@ -58,16 +58,5 @@ error: importing trait that is only used anonymously
 LL |     use simple_trait::{MyStruct, MyTrait};
    |                                  ^^^^^^^ help: use: `MyTrait as _`
 
-error: importing trait that is only used anonymously
-  --> tests/ui/unused_trait_names.rs:206:27
-   |
-LL |             use std::any::Any;
-   |                           ^^^ help: use: `Any as _`
-...
-LL |     foo!();
-   |     ------ in this macro invocation
-   |
-   = note: this error originates in the macro `foo` (in Nightly builds, run with -Z macro-backtrace for more info)
-
-error: aborting due to 10 previous errors
+error: aborting due to 9 previous errors
 
diff --git a/src/tools/clippy/tests/ui/used_underscore_items.rs b/src/tools/clippy/tests/ui/used_underscore_items.rs
index 7e8289f1406..aecdd32693c 100644
--- a/src/tools/clippy/tests/ui/used_underscore_items.rs
+++ b/src/tools/clippy/tests/ui/used_underscore_items.rs
@@ -62,13 +62,13 @@ fn main() {
     //~^ used_underscore_items
 }
 
-// should not lint exteranl crate.
+// should not lint external crate.
 // user cannot control how others name their items
 fn external_item_call() {
     let foo_struct3 = external_item::_ExternalStruct {};
     foo_struct3._foo();
 
-    external_item::_exernal_foo();
+    external_item::_external_foo();
 }
 
 // should not lint foreign functions.
diff --git a/src/tools/clippy/tests/ui/useless_attribute.fixed b/src/tools/clippy/tests/ui/useless_attribute.fixed
index a96c8f46f55..be4fb55ddfb 100644
--- a/src/tools/clippy/tests/ui/useless_attribute.fixed
+++ b/src/tools/clippy/tests/ui/useless_attribute.fixed
@@ -13,7 +13,7 @@
 #[allow(unused_imports)]
 #[allow(unused_extern_crates)]
 #[macro_use]
-extern crate rustc_middle;
+extern crate regex as regex_crate;
 
 #[macro_use]
 extern crate proc_macro_derive;
@@ -146,3 +146,15 @@ pub mod unknown_namespace {
     #[allow(rustc::non_glob_import_of_type_ir_inherent)]
     use some_module::SomeType;
 }
+
+// Regression test for https://github.com/rust-lang/rust-clippy/issues/15316
+pub mod redundant_imports_issue {
+    macro_rules! empty {
+        () => {};
+    }
+
+    #[expect(redundant_imports)]
+    pub(crate) use empty;
+
+    empty!();
+}
diff --git a/src/tools/clippy/tests/ui/useless_attribute.rs b/src/tools/clippy/tests/ui/useless_attribute.rs
index b26410134bb..5a1bcf97a5b 100644
--- a/src/tools/clippy/tests/ui/useless_attribute.rs
+++ b/src/tools/clippy/tests/ui/useless_attribute.rs
@@ -13,7 +13,7 @@
 #[allow(unused_imports)]
 #[allow(unused_extern_crates)]
 #[macro_use]
-extern crate rustc_middle;
+extern crate regex as regex_crate;
 
 #[macro_use]
 extern crate proc_macro_derive;
@@ -146,3 +146,15 @@ pub mod unknown_namespace {
     #[allow(rustc::non_glob_import_of_type_ir_inherent)]
     use some_module::SomeType;
 }
+
+// Regression test for https://github.com/rust-lang/rust-clippy/issues/15316
+pub mod redundant_imports_issue {
+    macro_rules! empty {
+        () => {};
+    }
+
+    #[expect(redundant_imports)]
+    pub(crate) use empty;
+
+    empty!();
+}
diff --git a/src/tools/clippy/triagebot.toml b/src/tools/clippy/triagebot.toml
index 805baf2af6d..a62b6269a3b 100644
--- a/src/tools/clippy/triagebot.toml
+++ b/src/tools/clippy/triagebot.toml
@@ -54,6 +54,7 @@ contributing_url = "https://github.com/rust-lang/rust-clippy/blob/master/CONTRIB
 users_on_vacation = [
     "matthiaskrgr",
     "Manishearth",
+    "samueltardieu",
 ]
 
 [assign.owners]
diff --git a/src/tools/clippy/util/gh-pages/index_template.html b/src/tools/clippy/util/gh-pages/index_template.html
index 6f380ec8fee..5d65ea585df 100644
--- a/src/tools/clippy/util/gh-pages/index_template.html
+++ b/src/tools/clippy/util/gh-pages/index_template.html
@@ -49,9 +49,7 @@ Otherwise, have a great day =^.^=
     <script src="theme.js"></script> {# #}
 
     <div class="container"> {# #}
-        <div class="page-header"> {# #}
-            <h1>Clippy Lints <span id="lint-count" class="badge"></span></h1> {# #}
-        </div> {# #}
+        <h1 class="page-header">Clippy Lints <span id="lint-count" class="badge"></span></h1> {# #}
 
         <noscript> {# #}
             <div class="alert alert-danger" role="alert"> {# #}
@@ -59,143 +57,141 @@ Otherwise, have a great day =^.^=
             </div> {# #}
         </noscript> {# #}
 
-        <div> {# #}
-            <div class="panel panel-default" id="menu-filters"> {# #}
-                <div class="panel-body row"> {# #}
-                    <div id="upper-filters" class="col-12 col-md-5"> {# #}
-                        <div class="btn-group" id="lint-levels" tabindex="-1"> {# #}
-                            <button type="button" class="btn btn-default dropdown-toggle"> {# #}
-                                Lint levels <span class="badge">4</span> <span class="caret"></span> {# #}
-                            </button> {# #}
-                            <ul class="dropdown-menu" id="lint-levels-selector"> {# #}
-                                <li class="checkbox"> {# #}
-                                    <button onclick="toggleElements('levels_filter', true)">All</button> {# #}
-                                </li> {# #}
-                                <li class="checkbox"> {# #}
-                                    <button onclick="toggleElements('levels_filter', false)">None</button> {# #}
-                                </li> {# #}
-                                <li role="separator" class="divider"></li> {# #}
-                            </ul> {# #}
-                        </div> {# #}
-                        <div class="btn-group" id="lint-groups" tabindex="-1"> {# #}
-                            <button type="button" class="btn btn-default dropdown-toggle"> {# #}
-                                Lint groups <span class="badge">9</span> <span class="caret"></span> {# #}
-                            </button> {# #}
-                            <ul class="dropdown-menu" id="lint-groups-selector"> {# #}
-                                <li class="checkbox"> {# #}
-                                    <button onclick="toggleElements('groups_filter', true)">All</button> {# #}
-                                </li> {# #}
-                                <li class="checkbox"> {# #}
-                                    <button onclick="resetGroupsToDefault()">Default</button> {# #}
-                                </li> {# #}
-                                <li class="checkbox"> {# #}
-                                    <button onclick="toggleElements('groups_filter', false)">None</button> {# #}
-                                </li> {# #}
-                                <li role="separator" class="divider"></li> {# #}
-                            </ul> {# #}
-                        </div> {# #}
-                        <div class="btn-group" id="version-filter" tabindex="-1"> {# #}
-                            <button type="button" class="btn btn-default dropdown-toggle"> {# #}
-                                Version {#+ #}
-                                <span id="version-filter-count" class="badge">0</span> {#+ #}
-                                <span class="caret"></span> {# #}
-                            </button> {# #}
-                            <ul id="version-filter-selector" class="dropdown-menu"> {# #}
-                                <li class="checkbox"> {# #}
-                                    <button onclick="clearVersionFilters()">Clear filters</button> {# #}
-                                </li> {# #}
-                                <li role="separator" class="divider"></li> {# #}
-                            </ul> {# #}
-                        </div> {# #}
-                        <div class="btn-group" id="lint-applicabilities" tabindex="-1"> {# #}
-                            <button type="button" class="btn btn-default dropdown-toggle"> {# #}
-                                Applicability {#+ #}
-                                <span class="badge">4</span> {#+ #}
-                                <span class="caret"></span> {# #}
-                            </button> {# #}
-                            <ul class="dropdown-menu" id="lint-applicabilities-selector"> {# #}
-                                <li class="checkbox"> {# #}
-                                    <button onclick="toggleElements('applicabilities_filter', true)">All</button> {# #}
-                                </li> {# #}
-                                <li class="checkbox"> {# #}
-                                    <button onclick="toggleElements('applicabilities_filter', false)">None</button> {# #}
-                                </li> {# #}
-                                <li role="separator" class="divider"></li> {# #}
-                            </ul> {# #}
-                        </div> {# #}
+        <div id="menu-filters"> {# #}
+            <div class="panel-body row"> {# #}
+                <div id="upper-filters" class="col-12 col-md-5"> {# #}
+                    <div class="btn-group" id="lint-levels" tabindex="-1"> {# #}
+                        <button type="button" class="btn btn-default dropdown-toggle"> {# #}
+                            Lint levels <span class="badge">4</span> <span class="caret"></span> {# #}
+                        </button> {# #}
+                        <ul class="dropdown-menu" id="lint-levels-selector"> {# #}
+                            <li class="checkbox"> {# #}
+                                <button onclick="toggleElements('levels_filter', true)">All</button> {# #}
+                            </li> {# #}
+                            <li class="checkbox"> {# #}
+                                <button onclick="toggleElements('levels_filter', false)">None</button> {# #}
+                            </li> {# #}
+                            <li role="separator" class="divider"></li> {# #}
+                        </ul> {# #}
                     </div> {# #}
-                    <div class="col-12 col-md-5 search-control"> {# #}
-                        <div class="input-group"> {# #}
-                            <label class="input-group-addon" id="filter-label" for="search-input">Filter:</label> {# #}
-                            <input type="text" class="form-control filter-input" placeholder="Keywords or search string (`S` or `/` to focus)" id="search-input" /> {# #}
-                            <span class="input-group-btn"> {# #}
-                                <button class="filter-clear btn" type="button" onclick="searchState.clearInput(event)"> {# #}
-                                    Clear {# #}
-                                </button> {# #}
-                            </span> {# #}
-                        </div> {# #}
+                    <div class="btn-group" id="lint-groups" tabindex="-1"> {# #}
+                        <button type="button" class="btn btn-default dropdown-toggle"> {# #}
+                            Lint groups <span class="badge">9</span> <span class="caret"></span> {# #}
+                        </button> {# #}
+                        <ul class="dropdown-menu" id="lint-groups-selector"> {# #}
+                            <li class="checkbox"> {# #}
+                                <button onclick="toggleElements('groups_filter', true)">All</button> {# #}
+                            </li> {# #}
+                            <li class="checkbox"> {# #}
+                                <button onclick="resetGroupsToDefault()">Default</button> {# #}
+                            </li> {# #}
+                            <li class="checkbox"> {# #}
+                                <button onclick="toggleElements('groups_filter', false)">None</button> {# #}
+                            </li> {# #}
+                            <li role="separator" class="divider"></li> {# #}
+                        </ul> {# #}
                     </div> {# #}
-                    <div class="col-12 col-md-2 btn-group expansion-group"> {# #}
-                        <button title="Collapse All" class="btn btn-default expansion-control" type="button" id="collapse-all"> {# #}
-                            <span class="glyphicon glyphicon-collapse-up"></span> {# #}
+                    <div class="btn-group" id="version-filter" tabindex="-1"> {# #}
+                        <button type="button" class="btn btn-default dropdown-toggle"> {# #}
+                            Version {#+ #}
+                            <span id="version-filter-count" class="badge">0</span> {#+ #}
+                            <span class="caret"></span> {# #}
                         </button> {# #}
-                        <button title="Expand All" class="btn btn-default expansion-control" type="button" id="expand-all"> {# #}
-                            <span class="glyphicon glyphicon-collapse-down"></span> {# #}
+                        <ul id="version-filter-selector" class="dropdown-menu"> {# #}
+                            <li class="checkbox"> {# #}
+                                <button onclick="clearVersionFilters()">Clear filters</button> {# #}
+                            </li> {# #}
+                            <li role="separator" class="divider"></li> {# #}
+                        </ul> {# #}
+                    </div> {# #}
+                    <div class="btn-group" id="lint-applicabilities" tabindex="-1"> {# #}
+                        <button type="button" class="btn btn-default dropdown-toggle"> {# #}
+                            Applicability {#+ #}
+                            <span class="badge">4</span> {#+ #}
+                            <span class="caret"></span> {# #}
                         </button> {# #}
+                        <ul class="dropdown-menu" id="lint-applicabilities-selector"> {# #}
+                            <li class="checkbox"> {# #}
+                                <button onclick="toggleElements('applicabilities_filter', true)">All</button> {# #}
+                            </li> {# #}
+                            <li class="checkbox"> {# #}
+                                <button onclick="toggleElements('applicabilities_filter', false)">None</button> {# #}
+                            </li> {# #}
+                            <li role="separator" class="divider"></li> {# #}
+                        </ul> {# #}
+                    </div> {# #}
+                </div> {# #}
+                <div class="col-12 col-md-5 search-control"> {# #}
+                    <div class="input-group"> {# #}
+                        <label class="input-group-addon" id="filter-label" for="search-input">Filter:</label> {# #}
+                        <input type="text" class="form-control filter-input" placeholder="Keywords or search string (`S` or `/` to focus)" id="search-input" /> {# #}
+                        <span class="input-group-btn"> {# #}
+                            <button class="filter-clear btn" type="button" onclick="searchState.clearInput(event)"> {# #}
+                                Clear {# #}
+                            </button> {# #}
+                        </span> {# #}
                     </div> {# #}
                 </div> {# #}
-            </div>
-            {% for lint in lints %}
-                <article class="panel panel-default" id="{{lint.id}}"> {# #}
-                    <input id="label-{{lint.id}}" type="checkbox"> {# #}
-                    <label for="label-{{lint.id}}"> {# #}
-                        <h2 class="lint-title"> {# #}
-                            <div class="panel-title-name" id="lint-{{lint.id}}"> {# #}
-                                {{lint.id +}}
-                                <a href="#{{lint.id}}" class="anchor label label-default">&para;</a> {#+ #}
-                                <a href="" class="copy-to-clipboard anchor label label-default"> {# #}
-                                    &#128203; {# #}
-                                </a> {# #}
-                            </div> {# #}
+                <div class="col-12 col-md-2 btn-group expansion-group"> {# #}
+                    <button title="Collapse All" class="btn btn-default expansion-control" type="button" id="collapse-all"> {# #}
+                        <span class="glyphicon glyphicon-collapse-up"></span> {# #}
+                    </button> {# #}
+                    <button title="Expand All" class="btn btn-default expansion-control" type="button" id="expand-all"> {# #}
+                        <span class="glyphicon glyphicon-collapse-down"></span> {# #}
+                    </button> {# #}
+                </div> {# #}
+            </div> {# #}
+        </div>
+        {% for lint in lints %}
+            <article id="{{lint.id}}"> {# #}
+                <input id="label-{{lint.id}}" type="checkbox"> {# #}
+                <label for="label-{{lint.id}}"> {# #}
+                    <h2 class="lint-title"> {# #}
+                        <div class="panel-title-name" id="lint-{{lint.id}}"> {# #}
+                            {{lint.id ~}}
+                            <a href="#{{lint.id}}" class="anchor label label-default">&para;</a> {#+ #}
+                            <a href="" class="copy-to-clipboard anchor label label-default"> {# #}
+                                &#128203; {# #}
+                            </a> {# #}
+                        </div> {# #}
 
-                            <span class="label label-lint-group label-default label-group-{{lint.group}}">{{lint.group}}</span> {#+ #}
+                        <span class="label label-default lint-group group-{{lint.group}}">{{lint.group}}</span> {#+ #}
 
-                            <span class="label label-lint-level label-lint-level-{{lint.level}}">{{lint.level}}</span> {#+ #}
+                        <span class="label lint-level level-{{lint.level}}">{{lint.level}}</span> {#+ #}
 
-                            <span class="label label-doc-folding"></span> {# #}
-                        </h2> {# #}
-                    </label> {# #}
+                        <span class="label doc-folding"></span> {# #}
+                    </h2> {# #}
+                </label> {# #}
 
-                    <div class="list-group lint-docs"> {# #}
-                        <div class="list-group-item lint-doc-md">{{Self::markdown(lint.docs)}}</div> {# #}
-                        <div class="lint-additional-info-container">
-                            {# Applicability #}
-                            <div> {# #}
-                                Applicability: {#+ #}
-                                <span class="label label-default label-applicability">{{ lint.applicability_str() }}</span> {# #}
-                                <a href="https://doc.rust-lang.org/nightly/nightly-rustc/rustc_lint_defs/enum.Applicability.html#variants">(?)</a> {# #}
-                            </div>
-                            {# Clippy version #}
-                            <div> {# #}
-                                {% if lint.group == "deprecated" %}Deprecated{% else %} Added{% endif +%} in: {#+ #}
-                                <span class="label label-default label-version">{{lint.version}}</span> {# #}
-                            </div>
-                            {# Open related issues #}
+                <div class="lint-docs"> {# #}
+                    <div class="lint-doc-md">{{Self::markdown(lint.docs)}}</div> {# #}
+                    <div class="lint-additional-info">
+                        {# Applicability #}
+                        <div> {# #}
+                            Applicability: {#+ #}
+                            <span class="label label-default applicability">{{ lint.applicability_str() }}</span> {# #}
+                            <a href="https://doc.rust-lang.org/nightly/nightly-rustc/rustc_lint_defs/enum.Applicability.html#variants">(?)</a> {# #}
+                        </div>
+                        {# Clippy version #}
+                        <div> {# #}
+                            {% if lint.group == "deprecated" %}Deprecated{% else %} Added{% endif +%} in: {#+ #}
+                            <span class="label label-default label-version">{{lint.version}}</span> {# #}
+                        </div>
+                        {# Open related issues #}
+                        <div> {# #}
+                            <a href="https://github.com/rust-lang/rust-clippy/issues?q=is%3Aissue+{{lint.id}}">Related Issues</a> {# #}
+                        </div>
+
+                        {# Jump to source #}
+                        {% if let Some(id_location) = lint.id_location %}
                             <div> {# #}
-                                <a href="https://github.com/rust-lang/rust-clippy/issues?q=is%3Aissue+{{lint.id}}">Related Issues</a> {# #}
+                                <a href="https://github.com/rust-lang/rust-clippy/blob/master/{{id_location}}">View Source</a> {# #}
                             </div>
-
-                            {# Jump to source #}
-                            {% if let Some(id_location) = lint.id_location %}
-                                <div> {# #}
-                                    <a href="https://github.com/rust-lang/rust-clippy/blob/master/{{id_location}}">View Source</a> {# #}
-                                </div>
-                            {% endif %}
-                        </div> {# #}
+                        {% endif %}
                     </div> {# #}
-                </article>
-            {% endfor %}
-        </div> {# #}
+                </div> {# #}
+            </article>
+        {% endfor %}
     </div> {# #}
 
     <a {#+ #}
diff --git a/src/tools/clippy/util/gh-pages/script.js b/src/tools/clippy/util/gh-pages/script.js
index ee13f1c0cd8..d3204967531 100644
--- a/src/tools/clippy/util/gh-pages/script.js
+++ b/src/tools/clippy/util/gh-pages/script.js
@@ -208,7 +208,6 @@ const LEVEL_FILTERS_DEFAULT = {
     allow: true,
     warn: true,
     deny: true,
-    none: true,
 };
 const APPLICABILITIES_FILTER_DEFAULT = {
     Unspecified: true,
@@ -250,10 +249,10 @@ window.filters = {
                 }
                 return {
                     elem: elem,
-                    group: elem.querySelector(".label-lint-group").innerText,
-                    level: elem.querySelector(".label-lint-level").innerText,
+                    group: elem.querySelector(".lint-group").innerText,
+                    level: elem.querySelector(".lint-level").innerText,
                     version: parseInt(version.split(".")[1]),
-                    applicability: elem.querySelector(".label-applicability").innerText,
+                    applicability: elem.querySelector(".applicability").innerText,
                     filteredOut: false,
                     searchFilteredOut: false,
                 };
@@ -594,19 +593,19 @@ disableShortcutsButton.checked = disableShortcuts;
 addListeners();
 highlightLazily();
 
-generateSettings();
-generateSearch();
-parseURLFilters();
-scrollToLintByURL();
-filters.filterLints();
-updateLintCount();
-
 function updateLintCount() {
     const allLints = filters.getAllLints().filter(lint => lint.group != "deprecated");
     const totalLints = allLints.length;
-    
+
     const countElement = document.getElementById("lint-count");
     if (countElement) {
         countElement.innerText = `Total number: ${totalLints}`;
     }
 }
+
+generateSettings();
+generateSearch();
+parseURLFilters();
+scrollToLintByURL();
+filters.filterLints();
+updateLintCount();
diff --git a/src/tools/clippy/util/gh-pages/style.css b/src/tools/clippy/util/gh-pages/style.css
index 022ea875200..66abf4598b0 100644
--- a/src/tools/clippy/util/gh-pages/style.css
+++ b/src/tools/clippy/util/gh-pages/style.css
@@ -30,17 +30,25 @@ blockquote { font-size: 1em; }
     background-color: var(--theme-hover);
 }
 
-div.panel div.panel-body button {
+.container > * {
+  margin-bottom: 20px;
+  border-radius: 4px;
+  background: var(--bg);
+  border: 1px solid var(--theme-popup-border);
+  box-shadow: 0 1px 1px rgba(0,0,0,.05);
+}
+
+div.panel-body button {
     background: var(--searchbar-bg);
     color: var(--searchbar-fg);
     border-color: var(--theme-popup-border);
 }
 
-div.panel div.panel-body button:hover {
+div.panel-body button:hover {
     box-shadow: 0 0 3px var(--searchbar-shadow-color);
 }
 
-div.panel div.panel-body  button.open {
+div.panel-body  button.open {
     filter: brightness(90%);
 }
 
@@ -48,8 +56,6 @@ div.panel div.panel-body  button.open {
     background-color: #777;
 }
 
-.panel-heading { cursor: pointer; }
-
 .lint-title {
     cursor: pointer;
     margin-top: 0;
@@ -70,8 +76,8 @@ div.panel div.panel-body  button.open {
 
 .panel-title-name { flex: 1; min-width: 400px;}
 
-.panel .panel-title-name .anchor { display: none; }
-.panel:hover .panel-title-name .anchor { display: inline;}
+.panel-title-name .anchor { display: none; }
+article:hover .panel-title-name .anchor { display: inline;}
 
 .search-control {
     margin-top: 15px;
@@ -111,40 +117,48 @@ div.panel div.panel-body  button.open {
     padding-bottom: 0.3em;
 }
 
-.label-lint-group {
-    min-width: 8em;
-}
-.label-lint-level {
+.lint-level {
     min-width: 4em;
 }
-
-.label-lint-level-allow {
+.level-allow {
     background-color: #5cb85c;
 }
-.label-lint-level-warn {
+.level-warn {
     background-color: #f0ad4e;
 }
-.label-lint-level-deny {
+.level-deny {
     background-color: #d9534f;
 }
-.label-lint-level-none {
+.level-none {
     background-color: #777777;
     opacity: 0.5;
 }
 
-.label-group-deprecated {
+.lint-group {
+    min-width: 8em;
+}
+.group-deprecated {
     opacity: 0.5;
 }
 
-.label-doc-folding {
+.doc-folding {
     color: #000;
     background-color: #fff;
     border: 1px solid var(--theme-popup-border);
 }
-.label-doc-folding:hover {
+.doc-folding:hover {
     background-color: #e6e6e6;
 }
 
+.lint-doc-md {
+    position: relative;
+    display: block;
+    padding: 10px 15px;
+    margin-bottom: -1px;
+    background: 0%;
+    border-bottom: 1px solid var(--theme-popup-border);
+    border-top: 1px solid var(--theme-popup-border);
+}
 .lint-doc-md > h3 {
     border-top: 1px solid var(--theme-popup-border);
     padding: 10px 15px;
@@ -157,32 +171,32 @@ div.panel div.panel-body  button.open {
 }
 
 @media (max-width:749px) {
-    .lint-additional-info-container {
+    .lint-additional-info {
         display: flex;
         flex-flow: column;
     }
-    .lint-additional-info-container > div + div {
+    .lint-additional-info > div + div {
         border-top: 1px solid var(--theme-popup-border);
     }
 }
 @media (min-width:750px) {
-    .lint-additional-info-container {
+    .lint-additional-info {
         display: flex;
         flex-flow: row;
     }
-    .lint-additional-info-container > div + div {
+    .lint-additional-info > div + div {
         border-left: 1px solid var(--theme-popup-border);
     }
 }
 
-.lint-additional-info-container > div {
+.lint-additional-info > div {
     display: inline-flex;
     min-width: 200px;
     flex-grow: 1;
     padding: 9px 5px 5px 15px;
 }
 
-.label-applicability {
+.applicability {
     background-color: #777777;
     margin: auto 5px;
 }
@@ -332,21 +346,12 @@ L4.75,12h2.5l0.5393066-2.1572876  c0.2276001-0.1062012,0.4459839-0.2269287,0.649
     border: 1px solid var(--theme-popup-border);
 }
 .page-header {
-    border-color: var(--theme-popup-border);
-}
-.panel-default .panel-heading {
-    background: var(--theme-hover);
-    color: var(--fg);
-    border: 1px solid var(--theme-popup-border);
-}
-.panel-default .panel-heading:hover {
-    filter: brightness(90%);
-}
-.list-group-item {
-    background: 0%;
-    border: 1px solid var(--theme-popup-border);
+    border: 0;
+    border-bottom: 1px solid var(--theme-popup-border);
+    padding-bottom: 19px;
+    border-radius: 0;
 }
-.panel, pre, hr {
+pre, hr {
     background: var(--bg);
     border: 1px solid var(--theme-popup-border);
 }
@@ -442,14 +447,15 @@ article > label {
 article > input[type="checkbox"] {
     display: none;
 }
-article > input[type="checkbox"] + label .label-doc-folding::before {
+article > input[type="checkbox"] + label .doc-folding::before {
     content: "+";
 }
-article > input[type="checkbox"]:checked + label .label-doc-folding::before {
+article > input[type="checkbox"]:checked + label .doc-folding::before {
     content: "−";
 }
 .lint-docs {
     display: none;
+    margin-bottom: 0;
 }
 article > input[type="checkbox"]:checked ~ .lint-docs {
     display: block;
diff --git a/src/tools/compiletest/src/common.rs b/src/tools/compiletest/src/common.rs
index 12084fa0b15..aceae3e3a3b 100644
--- a/src/tools/compiletest/src/common.rs
+++ b/src/tools/compiletest/src/common.rs
@@ -57,8 +57,8 @@ impl TestMode {
 string_enum! {
     #[derive(Clone, Copy, PartialEq, Debug)]
     pub enum TestSuite {
-        Assembly => "assembly",
-        Codegen => "codegen",
+        AssemblyLlvm => "assembly-llvm",
+        CodegenLlvm => "codegen-llvm",
         CodegenUnits => "codegen-units",
         Coverage => "coverage",
         CoverageRunRustdoc => "coverage-run-rustdoc",
diff --git a/src/tools/compiletest/src/directives.rs b/src/tools/compiletest/src/directives.rs
index 1397c87ab07..a1f76a07556 100644
--- a/src/tools/compiletest/src/directives.rs
+++ b/src/tools/compiletest/src/directives.rs
@@ -861,6 +861,7 @@ const KNOWN_DIRECTIVE_NAMES: &[&str] = &[
     "ignore-openbsd",
     "ignore-pass",
     "ignore-powerpc",
+    "ignore-powerpc64",
     "ignore-remote",
     "ignore-riscv64",
     "ignore-rustc-debug-assertions",
@@ -991,6 +992,7 @@ const KNOWN_DIRECTIVE_NAMES: &[&str] = &[
     "only-stable",
     "only-thumb",
     "only-tvos",
+    "only-uefi",
     "only-unix",
     "only-visionos",
     "only-wasm32",
diff --git a/src/tools/compiletest/src/directives/cfg.rs b/src/tools/compiletest/src/directives/cfg.rs
index 35f6a9e1644..802a1d63d1f 100644
--- a/src/tools/compiletest/src/directives/cfg.rs
+++ b/src/tools/compiletest/src/directives/cfg.rs
@@ -285,6 +285,11 @@ fn parse_cfg_name_directive<'a>(
         if name == "gdb-version" {
             outcome = MatchOutcome::External;
         }
+
+        // Don't error out for ignore-backends,as it is handled elsewhere.
+        if name == "backends" {
+            outcome = MatchOutcome::External;
+        }
     }
 
     ParsedNameDirective {
diff --git a/src/tools/compiletest/src/lib.rs b/src/tools/compiletest/src/lib.rs
index 41bed8ed8a0..c712185733c 100644
--- a/src/tools/compiletest/src/lib.rs
+++ b/src/tools/compiletest/src/lib.rs
@@ -31,7 +31,7 @@ use std::time::SystemTime;
 use std::{env, fs, vec};
 
 use build_helper::git::{get_git_modified_files, get_git_untracked_files};
-use camino::{Utf8Path, Utf8PathBuf};
+use camino::{Utf8Component, Utf8Path, Utf8PathBuf};
 use getopts::Options;
 use rayon::iter::{ParallelBridge, ParallelIterator};
 use tracing::debug;
@@ -799,6 +799,23 @@ fn collect_tests_from_dir(
         return Ok(TestCollector::new());
     }
 
+    let mut components = dir.components().rev();
+    if let Some(Utf8Component::Normal(last)) = components.next()
+        && let Some(("assembly" | "codegen", backend)) = last.split_once('-')
+        && let Some(Utf8Component::Normal(parent)) = components.next()
+        && parent == "tests"
+        && let Ok(backend) = CodegenBackend::try_from(backend)
+        && backend != cx.config.codegen_backend
+    {
+        // We ignore asm tests which don't match the current codegen backend.
+        warning!(
+            "Ignoring tests in `{dir}` because they don't match the configured codegen \
+             backend (`{}`)",
+            cx.config.codegen_backend.as_str(),
+        );
+        return Ok(TestCollector::new());
+    }
+
     // For run-make tests, a "test file" is actually a directory that contains an `rmake.rs`.
     if cx.config.mode == TestMode::RunMake {
         let mut collector = TestCollector::new();
diff --git a/src/tools/enzyme b/src/tools/enzyme
-Subproject b5098d515d5e1bd0f5470553bc0d18da9794ca8
+Subproject 2cccfba93c1650f26f1cf8be8aa875a7c1d23fb
diff --git a/src/tools/generate-copyright/Cargo.toml b/src/tools/generate-copyright/Cargo.toml
index e420a450d42..bcb3165de45 100644
--- a/src/tools/generate-copyright/Cargo.toml
+++ b/src/tools/generate-copyright/Cargo.toml
@@ -9,7 +9,7 @@ description = "Produces a manifest of all the copyrighted materials in the Rust
 [dependencies]
 anyhow = "1.0.65"
 askama = "0.14.0"
-cargo_metadata = "0.18.1"
+cargo_metadata = "0.21"
 serde = { version = "1.0.147", features = ["derive"] }
 serde_json = "1.0.85"
 thiserror = "1"
diff --git a/src/tools/generate-copyright/src/cargo_metadata.rs b/src/tools/generate-copyright/src/cargo_metadata.rs
index 3fae26bda47..87cd85c8def 100644
--- a/src/tools/generate-copyright/src/cargo_metadata.rs
+++ b/src/tools/generate-copyright/src/cargo_metadata.rs
@@ -92,7 +92,8 @@ pub fn get_metadata(
                 continue;
             }
             // otherwise it's an out-of-tree dependency
-            let package_id = Package { name: package.name, version: package.version.to_string() };
+            let package_id =
+                Package { name: package.name.to_string(), version: package.version.to_string() };
             output.insert(
                 package_id,
                 PackageMetadata {
diff --git a/src/tools/miri/CONTRIBUTING.md b/src/tools/miri/CONTRIBUTING.md
index fef7f807e93..637c0dd2fdf 100644
--- a/src/tools/miri/CONTRIBUTING.md
+++ b/src/tools/miri/CONTRIBUTING.md
@@ -13,16 +13,20 @@ for a list of Miri maintainers.
 
 [Rust Zulip]: https://rust-lang.zulipchat.com
 
-### Pull review process
+### PR review process
 
 When you get a review, please take care of the requested changes in new commits. Do not amend
 existing commits. Generally avoid force-pushing. The only time you should force push is when there
 is a conflict with the master branch (in that case you should rebase across master, not merge), and
 all the way at the end of the review process when the reviewer tells you that the PR is done and you
-should squash the commits. If you are unsure how to use `git rebase` to squash commits, use `./miri
-squash` which automates the process but leaves little room for customization. (All this is to work
-around the fact that Github is quite bad at dealing with force pushes and does not support `git
-range-diff`. Maybe one day Github will be good at git and then life can become easier.)
+should squash the commits. (All this is to work around the fact that Github is quite bad at
+dealing with force pushes and does not support `git range-diff`.)
+
+The recommended way to squash commits is to use `./miri squash`, which will make everything into a
+single commit. You will be asked for the commit message; please ensure it describes the entire PR.
+You can also use `git rebase` manually if you need more control (e.g. if there should be more than
+one commit at the end), but then please use `--keep-base` to ensure the PR remains based on the same
+upstream commit.
 
 Most PRs bounce back and forth between the reviewer and the author several times, so it is good to
 keep track of who is expected to take the next step. We are using the `S-waiting-for-review` and
@@ -348,6 +352,7 @@ https. Add the following to your `.gitconfig`:
 
 The following environment variables are relevant to `./miri`:
 
+* `CARGO` sets the binary used to execute Cargo; if none is specified, defaults to `cargo`.
 * `MIRI_AUTO_OPS` indicates whether the automatic execution of rustfmt, clippy and toolchain setup
   (as controlled by the `./auto-*` files) should be skipped. If it is set to `no`, they are skipped.
   This is used to allow automated IDE actions to avoid the auto ops.
diff --git a/src/tools/miri/Cargo.lock b/src/tools/miri/Cargo.lock
index aa6f059cec2..0af4181dc15 100644
--- a/src/tools/miri/Cargo.lock
+++ b/src/tools/miri/Cargo.lock
@@ -4,18 +4,18 @@ version = 4
 
 [[package]]
 name = "addr2line"
-version = "0.21.0"
+version = "0.24.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8a30b2e23b9e17a9f90641c7ab1549cd9b44f296d3ccbf309d2863cfe398a0cb"
+checksum = "dfbe277e56a376000877090da837660b4427aad530e3028d44e0bffe4f89a1c1"
 dependencies = [
  "gimli",
 ]
 
 [[package]]
-name = "adler"
-version = "1.0.2"
+name = "adler2"
+version = "2.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f26201604c87b1e01bd3d98f8d5d9a8fcbb815e8cedb41ffccbeb4bf593a35fe"
+checksum = "320119579fcad9c21884f5c4861d16174d0e06250625266f50fe6898340abefa"
 
 [[package]]
 name = "aes"
@@ -44,40 +44,40 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "710e8eae58854cdc1790fcb56cca04d712a17be849eeb81da2a724bf4bae2bc4"
 dependencies = [
  "anstyle",
- "unicode-width 0.2.0",
+ "unicode-width 0.2.1",
 ]
 
 [[package]]
 name = "anstyle"
-version = "1.0.10"
+version = "1.0.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "55cc3b69f167a1ef2e161439aa98aed94e6028e5f9a59be9a6ffb47aef1651f9"
+checksum = "862ed96ca487e809f1c8e5a8447f6ee2cf102f846893800b20cebdf541fc6bbd"
 
 [[package]]
 name = "anyhow"
-version = "1.0.97"
+version = "1.0.98"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dcfed56ad506cb2c684a14971b8861fdc3baaaae314b9e5f9bb532cbe3ba7a4f"
+checksum = "e16d2d3311acee920a9eb8d33b8cbc1787ce4a264e85f964c2404b969bdcd487"
 
 [[package]]
 name = "autocfg"
-version = "1.4.0"
+version = "1.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ace50bade8e6234aa140d9a2f552bbee1db4d353f69b8217bc503490fc1a9f26"
+checksum = "c08606f8c3cbf4ce6ec8e28fb0014a2c086708fe954eaa885384a6165172e7e8"
 
 [[package]]
 name = "backtrace"
-version = "0.3.71"
+version = "0.3.75"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "26b05800d2e817c8b3b4b54abd461726265fa9789ae34330622f2db9ee696f9d"
+checksum = "6806a6321ec58106fea15becdad98371e28d92ccbc7c8f1b3b6dd724fe8f1002"
 dependencies = [
  "addr2line",
- "cc",
  "cfg-if",
  "libc",
  "miniz_oxide",
  "object",
  "rustc-demangle",
+ "windows-targets 0.52.6",
 ]
 
 [[package]]
@@ -91,15 +91,15 @@ dependencies = [
 
 [[package]]
 name = "bitflags"
-version = "2.9.0"
+version = "2.9.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5c8214115b7bf84099f1309324e63141d4c5d7cc26862f97a0a857dbefe165bd"
+checksum = "1b8e56985ec62d17e9c1001dc89c88ecd7dc08e47eba5ec7c29c7b5eeecde967"
 
 [[package]]
 name = "bstr"
-version = "1.11.3"
+version = "1.12.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "531a9155a481e2ee699d4f98f43c0ca4ff8ee1bfd55c31e9e98fb29d2b176fe0"
+checksum = "234113d19d0d7d613b40e86fb654acf958910802bcceab913a4f9e7cda03b1a4"
 dependencies = [
  "memchr",
  "regex-automata",
@@ -108,15 +108,15 @@ dependencies = [
 
 [[package]]
 name = "bumpalo"
-version = "3.17.0"
+version = "3.19.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1628fb46dfa0b37568d12e5edd512553eccf6a22a78e8bde00bb4aed84d5bdbf"
+checksum = "46c5e41b57b8bba42a04676d81cb89e9ee8e859a1a66f80a5a72e1cb76b34d43"
 
 [[package]]
 name = "camino"
-version = "1.1.9"
+version = "1.1.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8b96ec4966b5813e2c0507c1f86115c8c5abaadc3980879c3424042a02fd1ad3"
+checksum = "0da45bc31171d8d6960122e222a67740df867c1dd53b4d51caa297084c185cab"
 dependencies = [
  "serde",
 ]
@@ -166,18 +166,18 @@ dependencies = [
 
 [[package]]
 name = "cc"
-version = "1.2.17"
+version = "1.2.30"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1fcb57c740ae1daf453ae85f16e37396f672b039e00d9d866e07ddb24e328e3a"
+checksum = "deec109607ca693028562ed836a5f1c4b8bd77755c4e132fc5ce11b0b6211ae7"
 dependencies = [
  "shlex",
 ]
 
 [[package]]
 name = "cfg-if"
-version = "1.0.0"
+version = "1.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
+checksum = "9555578bc9e57714c812a1f84e4fc5b4d21fcb063490c624de019f7464c91268"
 
 [[package]]
 name = "cfg_aliases"
@@ -187,35 +187,24 @@ checksum = "613afe47fcd5fac7ccf1db93babcb082c5994d996f20b8b159f2ad1658eb5724"
 
 [[package]]
 name = "chrono"
-version = "0.4.40"
+version = "0.4.41"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1a7964611d71df112cb1730f2ee67324fcf4d0fc6606acbbe9bfe06df124637c"
+checksum = "c469d952047f47f91b68d1cba3f10d63c11d73e4636f24f08daf0278abf01c4d"
 dependencies = [
  "num-traits",
 ]
 
 [[package]]
 name = "chrono-tz"
-version = "0.10.3"
+version = "0.10.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "efdce149c370f133a071ca8ef6ea340b7b88748ab0810097a9e2976eaa34b4f3"
+checksum = "a6139a8597ed92cf816dfb33f5dd6cf0bb93a6adc938f11039f371bc5bcd26c3"
 dependencies = [
  "chrono",
- "chrono-tz-build",
  "phf",
 ]
 
 [[package]]
-name = "chrono-tz-build"
-version = "0.4.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8f10f8c9340e31fc120ff885fcdb54a0b48e474bbd77cab557f0c30a3e569402"
-dependencies = [
- "parse-zoneinfo",
- "phf_codegen",
-]
-
-[[package]]
 name = "cipher"
 version = "0.4.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -227,27 +216,27 @@ dependencies = [
 
 [[package]]
 name = "color-eyre"
-version = "0.6.3"
+version = "0.6.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "55146f5e46f237f7423d74111267d4597b59b0dad0ffaf7303bce9945d843ad5"
+checksum = "e5920befb47832a6d61ee3a3a846565cfa39b331331e68a3b1d1116630f2f26d"
 dependencies = [
  "backtrace",
  "color-spantrace",
  "eyre",
  "indenter",
  "once_cell",
- "owo-colors",
+ "owo-colors 4.2.2",
  "tracing-error",
 ]
 
 [[package]]
 name = "color-spantrace"
-version = "0.2.1"
+version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cd6be1b2a7e382e2b98b43b2adcca6bb0e465af0bdd38123873ae61eb17a72c2"
+checksum = "b8b88ea9df13354b55bc7234ebcce36e6ef896aca2e42a15de9e10edce01b427"
 dependencies = [
  "once_cell",
- "owo-colors",
+ "owo-colors 4.2.2",
  "tracing-core",
  "tracing-error",
 ]
@@ -263,6 +252,15 @@ dependencies = [
 ]
 
 [[package]]
+name = "colored"
+version = "3.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fde0e0ec90c9dfb3b4b1a0891a7dcd0e2bffde2f7efed5fe7c9bb00e5bfb915e"
+dependencies = [
+ "windows-sys 0.59.0",
+]
+
+[[package]]
 name = "comma"
 version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -277,7 +275,7 @@ dependencies = [
  "encode_unicode",
  "libc",
  "once_cell",
- "unicode-width 0.2.0",
+ "unicode-width 0.2.1",
  "windows-sys 0.59.0",
 ]
 
@@ -333,7 +331,7 @@ dependencies = [
  "libc",
  "option-ext",
  "redox_users",
- "windows-sys 0.59.0",
+ "windows-sys 0.60.2",
 ]
 
 [[package]]
@@ -344,12 +342,12 @@ checksum = "34aa73646ffb006b8f5147f3dc182bd4bcb190227ce861fc4a4844bf8e3cb2c0"
 
 [[package]]
 name = "errno"
-version = "0.3.11"
+version = "0.3.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "976dd42dc7e85965fe702eb8164f21f450704bdde31faefd6471dba214cb594e"
+checksum = "778e2ac28f6c47af28e4907f13ffd1e1ddbd400980a9abd7c8df189bf578a5ad"
 dependencies = [
  "libc",
- "windows-sys 0.59.0",
+ "windows-sys 0.60.2",
 ]
 
 [[package]]
@@ -386,20 +384,20 @@ dependencies = [
 
 [[package]]
 name = "getrandom"
-version = "0.2.15"
+version = "0.2.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c4567c8db10ae91089c99af84c68c38da3ec2f087c3f82960bcdbf3656b6f4d7"
+checksum = "335ff9f135e4384c8150d6f27c6daed433577f86b4750418338c01a1a2528592"
 dependencies = [
  "cfg-if",
  "libc",
- "wasi 0.11.0+wasi-snapshot-preview1",
+ "wasi 0.11.1+wasi-snapshot-preview1",
 ]
 
 [[package]]
 name = "getrandom"
-version = "0.3.2"
+version = "0.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "73fea8450eea4bac3940448fb7ae50d91f034f941199fcd9d909a5a07aa455f0"
+checksum = "26145e563e54f2cadc477553f1ec5ee650b00862f0a58bcd12cbdc5f0ea2d2f4"
 dependencies = [
  "cfg-if",
  "libc",
@@ -409,9 +407,9 @@ dependencies = [
 
 [[package]]
 name = "gimli"
-version = "0.28.1"
+version = "0.31.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4271d37baee1b8c7e4b708028c57d816cf9d2434acb33a549475f78c181f6253"
+checksum = "07e28edb80900c19c28f1072f2e8aeca7fa06b23cd4169cefe1af5aa3260783f"
 
 [[package]]
 name = "indenter"
@@ -428,7 +426,7 @@ dependencies = [
  "console",
  "number_prefix",
  "portable-atomic",
- "unicode-width 0.2.0",
+ "unicode-width 0.2.1",
  "web-time",
 ]
 
@@ -443,17 +441,16 @@ dependencies = [
 
 [[package]]
 name = "ipc-channel"
-version = "0.19.0"
+version = "0.20.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6fb8251fb7bcd9ccd3725ed8deae9fe7db8e586495c9eb5b0c52e6233e5e75ea"
+checksum = "5b1c98b70019c830a1fc39cecfe1f60ff99c4122f0a189697c810c90ec545c14"
 dependencies = [
  "bincode",
  "crossbeam-channel",
  "fnv",
- "lazy_static",
  "libc",
  "mio",
- "rand 0.8.5",
+ "rand",
  "serde",
  "tempfile",
  "uuid",
@@ -490,15 +487,15 @@ checksum = "db13adb97ab515a3691f56e4dbab09283d0b86cb45abd991d8634a9d6f501760"
 
 [[package]]
 name = "libc"
-version = "0.2.171"
+version = "0.2.174"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c19937216e9d3aa9956d9bb8dfc0b0c8beb6058fc4f7a4dc4d850edf86a237d6"
+checksum = "1171693293099992e19cddea4e8b849964e9846f4acee11b3948bcc337be8776"
 
 [[package]]
 name = "libffi"
-version = "4.0.0"
+version = "4.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4a9434b6fc77375fb624698d5f8c49d7e80b10d59eb1219afda27d1f824d4074"
+checksum = "e7681c6fab541f799a829e44a445a0666cf8d8a6cfebf89419e6aed52c604e87"
 dependencies = [
  "libc",
  "libffi-sys",
@@ -506,28 +503,28 @@ dependencies = [
 
 [[package]]
 name = "libffi-sys"
-version = "3.2.0"
+version = "3.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ead36a2496acfc8edd6cc32352110e9478ac5b9b5f5b9856ebd3d28019addb84"
+checksum = "7b0d828d367b4450ed08e7d510dc46636cd660055f50d67ac943bfe788767c29"
 dependencies = [
  "cc",
 ]
 
 [[package]]
 name = "libloading"
-version = "0.8.6"
+version = "0.8.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fc2f4eb4bc735547cfed7c0a4922cbd04a4655978c09b54f1f7b228750664c34"
+checksum = "07033963ba89ebaf1584d767badaa2e8fcec21aedea6b8c0346d487d49c28667"
 dependencies = [
  "cfg-if",
- "windows-targets",
+ "windows-targets 0.53.2",
 ]
 
 [[package]]
 name = "libredox"
-version = "0.1.3"
+version = "0.1.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c0ff37bd590ca25063e35af745c343cb7a0271906fb7b37e4813e8f79f00268d"
+checksum = "1580801010e535496706ba011c15f8532df6b42297d2e471fec38ceadd8c0638"
 dependencies = [
  "bitflags",
  "libc",
@@ -535,15 +532,15 @@ dependencies = [
 
 [[package]]
 name = "linux-raw-sys"
-version = "0.9.3"
+version = "0.9.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fe7db12097d22ec582439daf8618b8fdd1a7bef6270e9af3b1ebcd30893cf413"
+checksum = "cd945864f07fe9f5371a27ad7b52a172b4b499999f1d97574c9fa68373937e12"
 
 [[package]]
 name = "lock_api"
-version = "0.4.12"
+version = "0.4.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "07af8b9cdd281b7915f413fa73f29ebd5d55d0d3f0155584dade1ff18cea1b17"
+checksum = "96936507f153605bddfcda068dd804796c84324ed2510809e5b2a624c81da765"
 dependencies = [
  "autocfg",
  "scopeguard",
@@ -557,9 +554,9 @@ checksum = "13dc2df351e3202783a1fe0d44375f7295ffb4049267b0f3018346dc122a1d94"
 
 [[package]]
 name = "measureme"
-version = "12.0.1"
+version = "12.0.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "570a507d8948a66a97f42cbbaf8a6bb9516a51017d4ee949502ad7a10a864395"
+checksum = "6ebd1ebda747ae161a4a377bf93f87e18d46faad2331cc0c7d25b84b1d445f49"
 dependencies = [
  "log",
  "memmap2",
@@ -571,9 +568,9 @@ dependencies = [
 
 [[package]]
 name = "memchr"
-version = "2.7.4"
+version = "2.7.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "78ca9ab1a0babb1e7d5695e3530886289c18cf2f87ec19a575a0abdce112e3a3"
+checksum = "32a282da65faaf38286cf3be983213fcf1d2e2a58700e808f83f4ea9a4804bc0"
 
 [[package]]
 name = "memmap2"
@@ -586,23 +583,22 @@ dependencies = [
 
 [[package]]
 name = "miniz_oxide"
-version = "0.7.4"
+version = "0.8.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b8a240ddb74feaf34a79a7add65a741f3167852fba007066dcac1ca548d89c08"
+checksum = "1fa76a2c86f704bdb222d66965fb3d63269ce38518b83cb0575fca855ebb6316"
 dependencies = [
- "adler",
+ "adler2",
 ]
 
 [[package]]
 name = "mio"
-version = "1.0.3"
+version = "1.0.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2886843bf800fba2e3377cff24abf6379b4c4d5c6681eaf9ea5b0d15090450bd"
+checksum = "78bed444cc8a2160f01cbcf811ef18cac863ad68ae8ca62092e8db51d51c761c"
 dependencies = [
  "libc",
- "log",
- "wasi 0.11.0+wasi-snapshot-preview1",
- "windows-sys 0.52.0",
+ "wasi 0.11.1+wasi-snapshot-preview1",
+ "windows-sys 0.59.0",
 ]
 
 [[package]]
@@ -614,16 +610,16 @@ dependencies = [
  "capstone",
  "chrono",
  "chrono-tz",
- "colored",
+ "colored 3.0.0",
  "directories",
- "getrandom 0.3.2",
+ "getrandom 0.3.3",
  "ipc-channel",
  "libc",
  "libffi",
  "libloading",
  "measureme",
  "nix",
- "rand 0.9.0",
+ "rand",
  "regex",
  "rustc_version",
  "serde",
@@ -663,9 +659,9 @@ checksum = "830b246a0e5f20af87141b25c173cd1b609bd7779a4617d6ec582abaf90870f3"
 
 [[package]]
 name = "object"
-version = "0.32.2"
+version = "0.36.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a6a622008b6e321afc04970976f62ee297fdbaa6f95318ca343e3eebb9648441"
+checksum = "62948e14d923ea95ea2c7c86c71013138b66525b86bdc08d2dcc262bdb497b87"
 dependencies = [
  "memchr",
 ]
@@ -689,6 +685,12 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c1b04fb49957986fdce4d6ee7a65027d55d4b6d2265e5848bbb507b58ccfdb6f"
 
 [[package]]
+name = "owo-colors"
+version = "4.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "48dd4f4a2c8405440fd0462561f0e5806bd0f77e86f51c761481bdd4018b545e"
+
+[[package]]
 name = "pad"
 version = "0.1.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -699,9 +701,9 @@ dependencies = [
 
 [[package]]
 name = "parking_lot"
-version = "0.12.3"
+version = "0.12.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f1bf18183cf54e8d6059647fc3063646a1801cf30896933ec2311622cc4b9a27"
+checksum = "70d58bf43669b5795d1576d0641cfb6fbb2057bf629506267a92807158584a13"
 dependencies = [
  "lock_api",
  "parking_lot_core",
@@ -709,24 +711,15 @@ dependencies = [
 
 [[package]]
 name = "parking_lot_core"
-version = "0.9.10"
+version = "0.9.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1e401f977ab385c9e4e3ab30627d6f26d00e2c73eef317493c4ec6d468726cf8"
+checksum = "bc838d2a56b5b1a6c25f55575dfc605fabb63bb2365f6c2353ef9159aa69e4a5"
 dependencies = [
  "cfg-if",
  "libc",
  "redox_syscall",
  "smallvec",
- "windows-targets",
-]
-
-[[package]]
-name = "parse-zoneinfo"
-version = "0.3.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1f2a05b18d44e2957b88f96ba460715e295bc1d7510468a2f3d3b44535d26c24"
-dependencies = [
- "regex",
+ "windows-targets 0.52.6",
 ]
 
 [[package]]
@@ -740,38 +733,18 @@ dependencies = [
 
 [[package]]
 name = "phf"
-version = "0.11.3"
+version = "0.12.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1fd6780a80ae0c52cc120a26a1a42c1ae51b247a253e4e06113d23d2c2edd078"
+checksum = "913273894cec178f401a31ec4b656318d95473527be05c0752cc41cdc32be8b7"
 dependencies = [
  "phf_shared",
 ]
 
 [[package]]
-name = "phf_codegen"
-version = "0.11.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "aef8048c789fa5e851558d709946d6d79a8ff88c0440c587967f8e94bfb1216a"
-dependencies = [
- "phf_generator",
- "phf_shared",
-]
-
-[[package]]
-name = "phf_generator"
-version = "0.11.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3c80231409c20246a13fddb31776fb942c38553c51e871f8cbd687a4cfb5843d"
-dependencies = [
- "phf_shared",
- "rand 0.8.5",
-]
-
-[[package]]
 name = "phf_shared"
-version = "0.11.3"
+version = "0.12.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "67eabc2ef2a60eb7faa00097bd1ffdb5bd28e62bf39990626a582201b7a754e5"
+checksum = "06005508882fb681fd97892ecff4b7fd0fee13ef1aa569f8695dae7ab9099981"
 dependencies = [
  "siphasher",
 ]
@@ -784,9 +757,9 @@ checksum = "3b3cff922bd51709b605d9ead9aa71031d81447142d828eb4a6eba76fe619f9b"
 
 [[package]]
 name = "portable-atomic"
-version = "1.11.0"
+version = "1.11.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "350e9b48cbc6b0e028b0473b114454c6316e57336ee184ceab6e53f72c178b3e"
+checksum = "f84267b20a16ea918e43c6a88433c2d54fa145c92a811b5b047ccbe153674483"
 
 [[package]]
 name = "ppv-lite86"
@@ -803,15 +776,15 @@ version = "0.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "abec3fb083c10660b3854367697da94c674e9e82aa7511014dc958beeb7215e9"
 dependencies = [
- "owo-colors",
+ "owo-colors 3.5.0",
  "pad",
 ]
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.94"
+version = "1.0.95"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a31971752e70b8b2686d7e46ec17fb38dad4051d94024c88df49b667caea9c84"
+checksum = "02b3e5e68a3a1a02aad3ec490a98007cbc13c37cbe84a3cd7b8e406d76e7f778"
 dependencies = [
  "unicode-ident",
 ]
@@ -827,40 +800,18 @@ dependencies = [
 
 [[package]]
 name = "r-efi"
-version = "5.2.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "74765f6d916ee2faa39bc8e68e4f3ed8949b48cccdac59983d287a7cb71ce9c5"
-
-[[package]]
-name = "rand"
-version = "0.8.5"
+version = "5.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "34af8d1a0e25924bc5b7c43c079c942339d8f0a8b57c39049bef581b46327404"
-dependencies = [
- "libc",
- "rand_chacha 0.3.1",
- "rand_core 0.6.4",
-]
+checksum = "69cdb34c158ceb288df11e18b4bd39de994f6657d83847bdffdbd7f346754b0f"
 
 [[package]]
 name = "rand"
-version = "0.9.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3779b94aeb87e8bd4e834cee3650289ee9e0d5677f976ecdb6d219e5f4f6cd94"
-dependencies = [
- "rand_chacha 0.9.0",
- "rand_core 0.9.3",
- "zerocopy",
-]
-
-[[package]]
-name = "rand_chacha"
-version = "0.3.1"
+version = "0.9.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e6c10a63a0fa32252be49d21e7709d4d4baf8d231c2dbce1eaa8141b9b127d88"
+checksum = "9fbfd9d094a40bf3ae768db9361049ace4c0e04a4fd6b359518bd7b73a73dd97"
 dependencies = [
- "ppv-lite86",
- "rand_core 0.6.4",
+ "rand_chacha",
+ "rand_core",
 ]
 
 [[package]]
@@ -870,16 +821,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d3022b5f1df60f26e1ffddd6c66e8aa15de382ae63b3a0c1bfc0e4d3e3f325cb"
 dependencies = [
  "ppv-lite86",
- "rand_core 0.9.3",
-]
-
-[[package]]
-name = "rand_core"
-version = "0.6.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ec0be4795e2f6a28069bec0b5ff3e2ac9bafc99e6a9a7dc3547996c5c816922c"
-dependencies = [
- "getrandom 0.2.15",
+ "rand_core",
 ]
 
 [[package]]
@@ -888,14 +830,14 @@ version = "0.9.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "99d9a13982dcf210057a8a78572b2217b667c3beacbf3a0d8b454f6f82837d38"
 dependencies = [
- "getrandom 0.3.2",
+ "getrandom 0.3.3",
 ]
 
 [[package]]
 name = "redox_syscall"
-version = "0.5.10"
+version = "0.5.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0b8c0c260b63a8219631167be35e6a988e9554dbd323f8bd08439c8ed1302bd1"
+checksum = "0d04b7d0ee6b4a0207a0a7adb104d23ecb0b47d6beae7152d0fa34b692b29fd6"
 dependencies = [
  "bitflags",
 ]
@@ -906,7 +848,7 @@ version = "0.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "dd6f9d3d47bdd2ad6945c5015a226ec6155d0bcdfd8f7cd29f86b71f8de99d2b"
 dependencies = [
- "getrandom 0.2.15",
+ "getrandom 0.2.16",
  "libredox",
  "thiserror 2.0.12",
 ]
@@ -942,9 +884,9 @@ checksum = "2b15c43186be67a4fd63bee50d0303afffcef381492ebe2c5d87f324e1b8815c"
 
 [[package]]
 name = "rustc-demangle"
-version = "0.1.24"
+version = "0.1.25"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "719b953e2095829ee67db738b3bfa9fa368c94900df327b3f07fe6e794d2fe1f"
+checksum = "989e6739f80c4ad5b13e0fd7fe89531180375b18520cc8c82080e4dc4035b84f"
 
 [[package]]
 name = "rustc-hash"
@@ -975,18 +917,24 @@ dependencies = [
 
 [[package]]
 name = "rustix"
-version = "1.0.5"
+version = "1.0.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d97817398dd4bb2e6da002002db259209759911da105da92bec29ccb12cf58bf"
+checksum = "11181fbabf243db407ef8df94a6ce0b2f9a733bd8be4ad02b4eda9602296cac8"
 dependencies = [
  "bitflags",
  "errno",
  "libc",
  "linux-raw-sys",
- "windows-sys 0.59.0",
+ "windows-sys 0.60.2",
 ]
 
 [[package]]
+name = "rustversion"
+version = "1.0.21"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8a0d197bd2c9dc6e53b84da9556a69ba4cdfab8619eb41a8bd1cc2027a0f6b1d"
+
+[[package]]
 name = "ryu"
 version = "1.0.20"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -1029,9 +977,9 @@ dependencies = [
 
 [[package]]
 name = "serde_json"
-version = "1.0.140"
+version = "1.0.141"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "20068b6e96dc6c9bd23e01df8827e6c7e1f2fddd43c21810382803c136b99373"
+checksum = "30b9eff21ebe718216c6ec64e1d9ac57087aad11efc64e32002bce4a0d4c03d3"
 dependencies = [
  "itoa",
  "memchr",
@@ -1062,25 +1010,26 @@ checksum = "56199f7ddabf13fe5074ce809e7d3f42b42ae711800501b5b16ea82ad029c39d"
 
 [[package]]
 name = "smallvec"
-version = "1.14.0"
+version = "1.15.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7fcf8323ef1faaee30a44a340193b1ac6814fd9b7b4e88e9d4519a3e4abe1cfd"
+checksum = "67b1b7a3b5fe4f1376887184045fcf45c69e92af734b7aaddc05fb777b6fbd03"
 
 [[package]]
 name = "spanned"
-version = "0.3.0"
+version = "0.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "86af297923fbcfd107c20a189a6e9c872160df71a7190ae4a7a6c5dce4b2feb6"
+checksum = "c92d4b0c055fde758f086eb4a6e73410247df8a3837fd606d2caeeaf72aa566d"
 dependencies = [
+ "anyhow",
  "bstr",
  "color-eyre",
 ]
 
 [[package]]
 name = "syn"
-version = "2.0.100"
+version = "2.0.104"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b09a44accad81e1ba1cd74a32461ba89dee89095ba17b32f5d03683b1b1fc2a0"
+checksum = "17b6f705963418cdb9927482fa304bc562ece2fdd4f616084c50b7023b435a40"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -1089,12 +1038,12 @@ dependencies = [
 
 [[package]]
 name = "tempfile"
-version = "3.19.1"
+version = "3.20.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7437ac7763b9b123ccf33c338a5cc1bac6f69b45a136c19bdd8a65e3916435bf"
+checksum = "e8a64e3985349f2441a1a9ef0b853f869006c3855f2cda6862a94d26ebb9d6a1"
 dependencies = [
  "fastrand",
- "getrandom 0.3.2",
+ "getrandom 0.3.3",
  "once_cell",
  "rustix",
  "windows-sys 0.59.0",
@@ -1142,12 +1091,11 @@ dependencies = [
 
 [[package]]
 name = "thread_local"
-version = "1.1.8"
+version = "1.1.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8b9ef9bad013ada3808854ceac7b46812a6465ba368859a37e2100283d2d719c"
+checksum = "f60246a4944f24f6e018aa17cdeffb7818b76356965d03b07d6a9886e8962185"
 dependencies = [
  "cfg-if",
- "once_cell",
 ]
 
 [[package]]
@@ -1172,9 +1120,9 @@ dependencies = [
 
 [[package]]
 name = "tracing-core"
-version = "0.1.33"
+version = "0.1.34"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e672c95779cf947c5311f83787af4fa8fffd12fb27e4993211a84bdfd9610f9c"
+checksum = "b9d12581f227e93f094d3af2ae690a574abb8a2b9b7a96e7cfe9647b2b617678"
 dependencies = [
  "once_cell",
  "valuable",
@@ -1209,9 +1157,9 @@ checksum = "1dccffe3ce07af9386bfd29e80c0ab1a8205a2fc34e4bcd40364df902cfa8f3f"
 
 [[package]]
 name = "ui_test"
-version = "0.29.2"
+version = "0.30.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1211b1111c752c73b33073d2958072be08825fd97c9ab4d83444da361a06634b"
+checksum = "b56a6897cc4bb6f8daf1939b0b39cd9645856997f46f4d0b3e3cb7122dfe9251"
 dependencies = [
  "annotate-snippets",
  "anyhow",
@@ -1219,7 +1167,7 @@ dependencies = [
  "cargo-platform",
  "cargo_metadata",
  "color-eyre",
- "colored",
+ "colored 2.2.0",
  "comma",
  "crossbeam-channel",
  "indicatif",
@@ -1247,17 +1195,19 @@ checksum = "7dd6e30e90baa6f72411720665d41d89b9a3d039dc45b8faea1ddd07f617f6af"
 
 [[package]]
 name = "unicode-width"
-version = "0.2.0"
+version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1fc81956842c57dac11422a97c3b8195a1ff727f06e85c84ed2e8aa277c9a0fd"
+checksum = "4a1a07cc7db3810833284e8d372ccdc6da29741639ecc70c9ec107df0fa6154c"
 
 [[package]]
 name = "uuid"
-version = "1.16.0"
+version = "1.17.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "458f7a779bf54acc9f347480ac654f68407d3aab21269a6e3c9f922acd9e2da9"
+checksum = "3cf4199d1e5d15ddd86a694e4d0dffa9c323ce759fea589f00fef9d81cc1931d"
 dependencies = [
- "getrandom 0.3.2",
+ "getrandom 0.3.3",
+ "js-sys",
+ "wasm-bindgen",
 ]
 
 [[package]]
@@ -1274,9 +1224,9 @@ checksum = "0b928f33d975fc6ad9f86c8f283853ad26bdd5b10b7f1542aa2fa15e2289105a"
 
 [[package]]
 name = "wasi"
-version = "0.11.0+wasi-snapshot-preview1"
+version = "0.11.1+wasi-snapshot-preview1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9c8d87e72b64a3b4db28d11ce29237c246188f4f51057d65a7eab63b7987e423"
+checksum = "ccf3ec651a847eb01de73ccad15eb7d99f80485de043efb2f370cd654f4ea44b"
 
 [[package]]
 name = "wasi"
@@ -1295,6 +1245,7 @@ checksum = "1edc8929d7499fc4e8f0be2262a241556cfc54a0bea223790e71446f2aab1ef5"
 dependencies = [
  "cfg-if",
  "once_cell",
+ "rustversion",
  "wasm-bindgen-macro",
 ]
 
@@ -1361,7 +1312,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "dd04d41d93c4992d421894c18c8b43496aa748dd4c081bac0dc93eb0489272b6"
 dependencies = [
  "windows-core",
- "windows-targets",
+ "windows-targets 0.52.6",
 ]
 
 [[package]]
@@ -1374,7 +1325,7 @@ dependencies = [
  "windows-interface",
  "windows-result",
  "windows-strings",
- "windows-targets",
+ "windows-targets 0.52.6",
 ]
 
 [[package]]
@@ -1405,7 +1356,7 @@ version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1d1043d8214f791817bab27572aaa8af63732e11bf84aa21a45a78d6c317ae0e"
 dependencies = [
- "windows-targets",
+ "windows-targets 0.52.6",
 ]
 
 [[package]]
@@ -1415,25 +1366,25 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4cd9b125c486025df0eabcb585e62173c6c9eddcec5d117d3b6e8c30e2ee4d10"
 dependencies = [
  "windows-result",
- "windows-targets",
+ "windows-targets 0.52.6",
 ]
 
 [[package]]
 name = "windows-sys"
-version = "0.52.0"
+version = "0.59.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "282be5f36a8ce781fad8c8ae18fa3f9beff57ec1b52cb3de0789201425d9a33d"
+checksum = "1e38bc4d79ed67fd075bcc251a1c39b32a1776bbe92e5bef1f0bf1f8c531853b"
 dependencies = [
- "windows-targets",
+ "windows-targets 0.52.6",
 ]
 
 [[package]]
 name = "windows-sys"
-version = "0.59.0"
+version = "0.60.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1e38bc4d79ed67fd075bcc251a1c39b32a1776bbe92e5bef1f0bf1f8c531853b"
+checksum = "f2f500e4d28234f72040990ec9d39e3a6b950f9f22d3dba18416c35882612bcb"
 dependencies = [
- "windows-targets",
+ "windows-targets 0.53.2",
 ]
 
 [[package]]
@@ -1442,14 +1393,30 @@ version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9b724f72796e036ab90c1021d4780d4d3d648aca59e491e6b98e725b84e99973"
 dependencies = [
- "windows_aarch64_gnullvm",
- "windows_aarch64_msvc",
- "windows_i686_gnu",
- "windows_i686_gnullvm",
- "windows_i686_msvc",
- "windows_x86_64_gnu",
- "windows_x86_64_gnullvm",
- "windows_x86_64_msvc",
+ "windows_aarch64_gnullvm 0.52.6",
+ "windows_aarch64_msvc 0.52.6",
+ "windows_i686_gnu 0.52.6",
+ "windows_i686_gnullvm 0.52.6",
+ "windows_i686_msvc 0.52.6",
+ "windows_x86_64_gnu 0.52.6",
+ "windows_x86_64_gnullvm 0.52.6",
+ "windows_x86_64_msvc 0.52.6",
+]
+
+[[package]]
+name = "windows-targets"
+version = "0.53.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c66f69fcc9ce11da9966ddb31a40968cad001c5bedeb5c2b82ede4253ab48aef"
+dependencies = [
+ "windows_aarch64_gnullvm 0.53.0",
+ "windows_aarch64_msvc 0.53.0",
+ "windows_i686_gnu 0.53.0",
+ "windows_i686_gnullvm 0.53.0",
+ "windows_i686_msvc 0.53.0",
+ "windows_x86_64_gnu 0.53.0",
+ "windows_x86_64_gnullvm 0.53.0",
+ "windows_x86_64_msvc 0.53.0",
 ]
 
 [[package]]
@@ -1459,48 +1426,96 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "32a4622180e7a0ec044bb555404c800bc9fd9ec262ec147edd5989ccd0c02cd3"
 
 [[package]]
+name = "windows_aarch64_gnullvm"
+version = "0.53.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "86b8d5f90ddd19cb4a147a5fa63ca848db3df085e25fee3cc10b39b6eebae764"
+
+[[package]]
 name = "windows_aarch64_msvc"
 version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "09ec2a7bb152e2252b53fa7803150007879548bc709c039df7627cabbd05d469"
 
 [[package]]
+name = "windows_aarch64_msvc"
+version = "0.53.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c7651a1f62a11b8cbd5e0d42526e55f2c99886c77e007179efff86c2b137e66c"
+
+[[package]]
 name = "windows_i686_gnu"
 version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8e9b5ad5ab802e97eb8e295ac6720e509ee4c243f69d781394014ebfe8bbfa0b"
 
 [[package]]
+name = "windows_i686_gnu"
+version = "0.53.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c1dc67659d35f387f5f6c479dc4e28f1d4bb90ddd1a5d3da2e5d97b42d6272c3"
+
+[[package]]
 name = "windows_i686_gnullvm"
 version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0eee52d38c090b3caa76c563b86c3a4bd71ef1a819287c19d586d7334ae8ed66"
 
 [[package]]
+name = "windows_i686_gnullvm"
+version = "0.53.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9ce6ccbdedbf6d6354471319e781c0dfef054c81fbc7cf83f338a4296c0cae11"
+
+[[package]]
 name = "windows_i686_msvc"
 version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "240948bc05c5e7c6dabba28bf89d89ffce3e303022809e73deaefe4f6ec56c66"
 
 [[package]]
+name = "windows_i686_msvc"
+version = "0.53.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "581fee95406bb13382d2f65cd4a908ca7b1e4c2f1917f143ba16efe98a589b5d"
+
+[[package]]
 name = "windows_x86_64_gnu"
 version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "147a5c80aabfbf0c7d901cb5895d1de30ef2907eb21fbbab29ca94c5b08b1a78"
 
 [[package]]
+name = "windows_x86_64_gnu"
+version = "0.53.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2e55b5ac9ea33f2fc1716d1742db15574fd6fc8dadc51caab1c16a3d3b4190ba"
+
+[[package]]
 name = "windows_x86_64_gnullvm"
 version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "24d5b23dc417412679681396f2b49f3de8c1473deb516bd34410872eff51ed0d"
 
 [[package]]
+name = "windows_x86_64_gnullvm"
+version = "0.53.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0a6e035dd0599267ce1ee132e51c27dd29437f63325753051e71dd9e42406c57"
+
+[[package]]
 name = "windows_x86_64_msvc"
 version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "589f6da84c646204747d1270a2a5661ea66ed1cced2631d546fdfb155959f9ec"
 
 [[package]]
+name = "windows_x86_64_msvc"
+version = "0.53.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "271414315aff87387382ec3d271b52d7ae78726f5d44ac98b4f4030c91880486"
+
+[[package]]
 name = "wit-bindgen-rt"
 version = "0.39.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -1511,18 +1526,18 @@ dependencies = [
 
 [[package]]
 name = "zerocopy"
-version = "0.8.24"
+version = "0.8.26"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2586fea28e186957ef732a5f8b3be2da217d65c5969d4b1e17f973ebbe876879"
+checksum = "1039dd0d3c310cf05de012d8a39ff557cb0d23087fd44cad61df08fc31907a2f"
 dependencies = [
  "zerocopy-derive",
 ]
 
 [[package]]
 name = "zerocopy-derive"
-version = "0.8.24"
+version = "0.8.26"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a996a8f63c5c4448cd959ac1bab0aaa3306ccfd060472f85943ee0750f0169be"
+checksum = "9ecf5b4cc5364572d7f4c329661bcc82724222973f2cab6f050a4e5c22f75181"
 dependencies = [
  "proc-macro2",
  "quote",
diff --git a/src/tools/miri/Cargo.toml b/src/tools/miri/Cargo.toml
index 75476d7923c..d293af5cea2 100644
--- a/src/tools/miri/Cargo.toml
+++ b/src/tools/miri/Cargo.toml
@@ -38,18 +38,19 @@ features = ['unprefixed_malloc_on_supported_platforms']
 
 [target.'cfg(unix)'.dependencies]
 libc = "0.2"
-libffi = "4.0.0"
-libloading = "0.8"
+# native-lib dependencies
+libffi = { version = "4.0.0", optional = true }
+libloading = { version = "0.8", optional = true }
+serde = { version = "1.0.219", features = ["derive"], optional = true }
 
 [target.'cfg(target_os = "linux")'.dependencies]
-nix = { version = "0.30.1", features = ["mman", "ptrace", "signal"] }
-ipc-channel = "0.19.0"
-serde = { version = "1.0.219", features = ["derive"] }
-capstone = "0.13"
+nix = { version = "0.30.1", features = ["mman", "ptrace", "signal"], optional = true }
+ipc-channel = { version = "0.20.0", optional = true }
+capstone = { version = "0.13", optional = true }
 
 [dev-dependencies]
-ui_test = "0.29.1"
-colored = "2"
+ui_test = "0.30.2"
+colored = "3"
 rustc_version = "0.4"
 regex = "1.5.5"
 tempfile = "3"
@@ -64,11 +65,12 @@ name = "ui"
 harness = false
 
 [features]
-default = ["stack-cache"]
+default = ["stack-cache", "native-lib"]
 genmc = []
 stack-cache = []
 stack-cache-consistency-check = ["stack-cache"]
 tracing = ["serde_json"]
+native-lib = ["dep:libffi", "dep:libloading", "dep:capstone", "dep:ipc-channel", "dep:nix", "dep:serde"]
 
 [lints.rust.unexpected_cfgs]
 level = "warn"
diff --git a/src/tools/miri/README.md b/src/tools/miri/README.md
index 7816ce1ac56..7ccd27d7b83 100644
--- a/src/tools/miri/README.md
+++ b/src/tools/miri/README.md
@@ -286,11 +286,6 @@ environment variable. We first document the most relevant and most commonly used
   specific circumstances, but Miri's behavior will also be more stable across versions and targets.
   This is equivalent to `-Zmiri-fixed-schedule -Zmiri-compare-exchange-weak-failure-rate=0.0
   -Zmiri-address-reuse-cross-thread-rate=0.0 -Zmiri-disable-weak-memory-emulation`.
-* `-Zmiri-deterministic-floats` makes Miri's floating-point behavior fully deterministic. This means
-  that operations will always return the preferred NaN, imprecise operations will not have any
-  random error applied to them, and `min`/`max` as "maybe fused" multiply-add all behave
-  deterministically. Note that Miri still uses host floats for some operations, so behavior can
-  still differ depending on the host target and setup.
 * `-Zmiri-disable-isolation` disables host isolation. As a consequence,
   the program has access to host resources such as environment variables, file
   systems, and randomness.
@@ -324,6 +319,8 @@ environment variable. We first document the most relevant and most commonly used
   Can be used without a value; in that case the range defaults to `0..64`.
 * `-Zmiri-many-seeds-keep-going` tells Miri to really try all the seeds in the given range, even if
   a failing seed has already been found. This is useful to determine which fraction of seeds fails.
+* `-Zmiri-no-extra-rounding-error` stops Miri from adding extra rounding errors to float operations
+  that do not have a guaranteed precision.
 * `-Zmiri-num-cpus` states the number of available CPUs to be reported by miri. By default, the
   number of available CPUs is `1`. Note that this flag does not affect how miri handles threads in
   any way.
@@ -376,6 +373,12 @@ to Miri failing to detect cases of undefined behavior in a program.
   will always fail and `0.0` means it will never fail. Note that setting it to
   `1.0` will likely cause hangs, since it means programs using
   `compare_exchange_weak` cannot make progress.
+* `-Zmiri-deterministic-floats` makes Miri's floating-point behavior fully deterministic. This means
+  that operations will always return the preferred NaN, imprecise operations will not have any
+  random error applied to them, and `min`/`max` and "maybe fused" multiply-add all behave
+  deterministically. Note that Miri still uses host floats for some operations, so behavior can
+  still differ depending on the host target and setup. See `-Zmiri-no-extra-rounding-error` for
+  a flag that specifically only disables the random error.
 * `-Zmiri-disable-alignment-check` disables checking pointer alignment, so you
   can focus on other failures, but it means Miri can miss bugs in your program.
   Using this flag is **unsound**.
diff --git a/src/tools/miri/cargo-miri/Cargo.lock b/src/tools/miri/cargo-miri/Cargo.lock
index d37f8750bde..b3f5dafab64 100644
--- a/src/tools/miri/cargo-miri/Cargo.lock
+++ b/src/tools/miri/cargo-miri/Cargo.lock
@@ -3,31 +3,28 @@
 version = 4
 
 [[package]]
-name = "aho-corasick"
-version = "1.1.3"
+name = "anyhow"
+version = "1.0.98"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8e60d3430d3a69478ad0993f19238d2df97c507009a52b3c10addcd7f6bcb916"
-dependencies = [
- "memchr",
-]
+checksum = "e16d2d3311acee920a9eb8d33b8cbc1787ce4a264e85f964c2404b969bdcd487"
 
 [[package]]
-name = "anyhow"
-version = "1.0.97"
+name = "autocfg"
+version = "1.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dcfed56ad506cb2c684a14971b8861fdc3baaaae314b9e5f9bb532cbe3ba7a4f"
+checksum = "c08606f8c3cbf4ce6ec8e28fb0014a2c086708fe954eaa885384a6165172e7e8"
 
 [[package]]
 name = "bitflags"
-version = "2.9.0"
+version = "2.9.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5c8214115b7bf84099f1309324e63141d4c5d7cc26862f97a0a857dbefe165bd"
+checksum = "1b8e56985ec62d17e9c1001dc89c88ecd7dc08e47eba5ec7c29c7b5eeecde967"
 
 [[package]]
 name = "camino"
-version = "1.1.9"
+version = "1.1.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8b96ec4966b5813e2c0507c1f86115c8c5abaadc3980879c3424042a02fd1ad3"
+checksum = "0da45bc31171d8d6960122e222a67740df867c1dd53b4d51caa297084c185cab"
 dependencies = [
  "serde",
 ]
@@ -47,21 +44,38 @@ dependencies = [
 
 [[package]]
 name = "cargo-platform"
-version = "0.1.9"
+version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e35af189006b9c0f00a064685c727031e3ed2d8020f7ba284d78cc2671bd36ea"
+checksum = "84982c6c0ae343635a3a4ee6dedef965513735c8b183caa7289fa6e27399ebd4"
 dependencies = [
  "serde",
 ]
 
 [[package]]
+name = "cargo-util-schemas"
+version = "0.8.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7dc1a6f7b5651af85774ae5a34b4e8be397d9cf4bc063b7e6dbd99a841837830"
+dependencies = [
+ "semver",
+ "serde",
+ "serde-untagged",
+ "serde-value",
+ "thiserror",
+ "toml",
+ "unicode-xid",
+ "url",
+]
+
+[[package]]
 name = "cargo_metadata"
-version = "0.19.2"
+version = "0.21.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dd5eb614ed4c27c5d706420e4320fbe3216ab31fa1c33cd8246ac36dae4479ba"
+checksum = "5cfca2aaa699835ba88faf58a06342a314a950d2b9686165e038286c30316868"
 dependencies = [
  "camino",
  "cargo-platform",
+ "cargo-util-schemas",
  "semver",
  "serde",
  "serde_json",
@@ -70,9 +84,9 @@ dependencies = [
 
 [[package]]
 name = "cfg-if"
-version = "1.0.0"
+version = "1.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
+checksum = "9555578bc9e57714c812a1f84e4fc5b4d21fcb063490c624de019f7464c91268"
 
 [[package]]
 name = "directories"
@@ -92,17 +106,44 @@ dependencies = [
  "libc",
  "option-ext",
  "redox_users",
- "windows-sys",
+ "windows-sys 0.60.2",
+]
+
+[[package]]
+name = "displaydoc"
+version = "0.2.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "97369cbbc041bc366949bc74d34658d6cda5621039731c6310521892a3a20ae0"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "equivalent"
+version = "1.0.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "877a4ace8713b0bcf2a4e7eec82529c029f1d0619886d18145fea96c3ffe5c0f"
+
+[[package]]
+name = "erased-serde"
+version = "0.4.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e004d887f51fcb9fef17317a2f3525c887d8aa3f4f50fed920816a688284a5b7"
+dependencies = [
+ "serde",
+ "typeid",
 ]
 
 [[package]]
 name = "errno"
-version = "0.3.11"
+version = "0.3.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "976dd42dc7e85965fe702eb8164f21f450704bdde31faefd6471dba214cb594e"
+checksum = "778e2ac28f6c47af28e4907f13ffd1e1ddbd400980a9abd7c8df189bf578a5ad"
 dependencies = [
  "libc",
- "windows-sys",
+ "windows-sys 0.60.2",
 ]
 
 [[package]]
@@ -112,21 +153,30 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "37909eebbb50d72f9059c3b6d82c0463f2ff062c9e95845c43a6c9c0355411be"
 
 [[package]]
+name = "form_urlencoded"
+version = "1.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e13624c2627564efccf4934284bdd98cbaa14e79b0b5a141218e507b3a823456"
+dependencies = [
+ "percent-encoding",
+]
+
+[[package]]
 name = "getrandom"
-version = "0.2.15"
+version = "0.2.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c4567c8db10ae91089c99af84c68c38da3ec2f087c3f82960bcdbf3656b6f4d7"
+checksum = "335ff9f135e4384c8150d6f27c6daed433577f86b4750418338c01a1a2528592"
 dependencies = [
  "cfg-if",
  "libc",
- "wasi 0.11.0+wasi-snapshot-preview1",
+ "wasi 0.11.1+wasi-snapshot-preview1",
 ]
 
 [[package]]
 name = "getrandom"
-version = "0.3.2"
+version = "0.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "73fea8450eea4bac3940448fb7ae50d91f034f941199fcd9d909a5a07aa455f0"
+checksum = "26145e563e54f2cadc477553f1ec5ee650b00862f0a58bcd12cbdc5f0ea2d2f4"
 dependencies = [
  "cfg-if",
  "libc",
@@ -135,6 +185,129 @@ dependencies = [
 ]
 
 [[package]]
+name = "hashbrown"
+version = "0.15.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5971ac85611da7067dbfcabef3c70ebb5606018acd9e2a3903a0da507521e0d5"
+
+[[package]]
+name = "icu_collections"
+version = "2.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "200072f5d0e3614556f94a9930d5dc3e0662a652823904c3a75dc3b0af7fee47"
+dependencies = [
+ "displaydoc",
+ "potential_utf",
+ "yoke",
+ "zerofrom",
+ "zerovec",
+]
+
+[[package]]
+name = "icu_locale_core"
+version = "2.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0cde2700ccaed3872079a65fb1a78f6c0a36c91570f28755dda67bc8f7d9f00a"
+dependencies = [
+ "displaydoc",
+ "litemap",
+ "tinystr",
+ "writeable",
+ "zerovec",
+]
+
+[[package]]
+name = "icu_normalizer"
+version = "2.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "436880e8e18df4d7bbc06d58432329d6458cc84531f7ac5f024e93deadb37979"
+dependencies = [
+ "displaydoc",
+ "icu_collections",
+ "icu_normalizer_data",
+ "icu_properties",
+ "icu_provider",
+ "smallvec",
+ "zerovec",
+]
+
+[[package]]
+name = "icu_normalizer_data"
+version = "2.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "00210d6893afc98edb752b664b8890f0ef174c8adbb8d0be9710fa66fbbf72d3"
+
+[[package]]
+name = "icu_properties"
+version = "2.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "016c619c1eeb94efb86809b015c58f479963de65bdb6253345c1a1276f22e32b"
+dependencies = [
+ "displaydoc",
+ "icu_collections",
+ "icu_locale_core",
+ "icu_properties_data",
+ "icu_provider",
+ "potential_utf",
+ "zerotrie",
+ "zerovec",
+]
+
+[[package]]
+name = "icu_properties_data"
+version = "2.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "298459143998310acd25ffe6810ed544932242d3f07083eee1084d83a71bd632"
+
+[[package]]
+name = "icu_provider"
+version = "2.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "03c80da27b5f4187909049ee2d72f276f0d9f99a42c306bd0131ecfe04d8e5af"
+dependencies = [
+ "displaydoc",
+ "icu_locale_core",
+ "stable_deref_trait",
+ "tinystr",
+ "writeable",
+ "yoke",
+ "zerofrom",
+ "zerotrie",
+ "zerovec",
+]
+
+[[package]]
+name = "idna"
+version = "1.0.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "686f825264d630750a544639377bae737628043f20d38bbc029e8f29ea968a7e"
+dependencies = [
+ "idna_adapter",
+ "smallvec",
+ "utf8_iter",
+]
+
+[[package]]
+name = "idna_adapter"
+version = "1.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3acae9609540aa318d1bc588455225fb2085b9ed0c4f6bd0d9d5bcd86f1a0344"
+dependencies = [
+ "icu_normalizer",
+ "icu_properties",
+]
+
+[[package]]
+name = "indexmap"
+version = "2.10.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fe4cd85333e22411419a0bcae1297d25e58c9443848b11dc6a86fefe8c78a661"
+dependencies = [
+ "equivalent",
+ "hashbrown",
+]
+
+[[package]]
 name = "itoa"
 version = "1.0.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -142,15 +315,15 @@ checksum = "4a5f13b858c8d314ee3e8f639011f7ccefe71f97f96e50151fb991f267928e2c"
 
 [[package]]
 name = "libc"
-version = "0.2.171"
+version = "0.2.174"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c19937216e9d3aa9956d9bb8dfc0b0c8beb6058fc4f7a4dc4d850edf86a237d6"
+checksum = "1171693293099992e19cddea4e8b849964e9846f4acee11b3948bcc337be8776"
 
 [[package]]
 name = "libredox"
-version = "0.1.3"
+version = "0.1.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c0ff37bd590ca25063e35af745c343cb7a0271906fb7b37e4813e8f79f00268d"
+checksum = "1580801010e535496706ba011c15f8532df6b42297d2e471fec38ceadd8c0638"
 dependencies = [
  "bitflags",
  "libc",
@@ -158,15 +331,30 @@ dependencies = [
 
 [[package]]
 name = "linux-raw-sys"
-version = "0.9.3"
+version = "0.9.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fe7db12097d22ec582439daf8618b8fdd1a7bef6270e9af3b1ebcd30893cf413"
+checksum = "cd945864f07fe9f5371a27ad7b52a172b4b499999f1d97574c9fa68373937e12"
+
+[[package]]
+name = "litemap"
+version = "0.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "241eaef5fd12c88705a01fc1066c48c4b36e0dd4377dcdc7ec3942cea7a69956"
 
 [[package]]
 name = "memchr"
-version = "2.7.4"
+version = "2.7.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "78ca9ab1a0babb1e7d5695e3530886289c18cf2f87ec19a575a0abdce112e3a3"
+checksum = "32a282da65faaf38286cf3be983213fcf1d2e2a58700e808f83f4ea9a4804bc0"
+
+[[package]]
+name = "num-traits"
+version = "0.2.19"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "071dfc062690e90b734c0b2273ce72ad0ffa95f0c74596bc250dcfd960262841"
+dependencies = [
+ "autocfg",
+]
 
 [[package]]
 name = "once_cell"
@@ -181,10 +369,34 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "04744f49eae99ab78e0d5c0b603ab218f515ea8cfe5a456d7629ad883a3b6e7d"
 
 [[package]]
+name = "ordered-float"
+version = "2.10.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "68f19d67e5a2795c94e73e0bb1cc1a7edeb2e28efd39e2e1c9b7a40c1108b11c"
+dependencies = [
+ "num-traits",
+]
+
+[[package]]
+name = "percent-encoding"
+version = "2.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e3148f5046208a5d56bcfc03053e3ca6334e51da8dfb19b6cdc8b306fae3283e"
+
+[[package]]
+name = "potential_utf"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e5a7c30837279ca13e7c867e9e40053bc68740f988cb07f7ca6df43cc734b585"
+dependencies = [
+ "zerovec",
+]
+
+[[package]]
 name = "proc-macro2"
-version = "1.0.94"
+version = "1.0.95"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a31971752e70b8b2686d7e46ec17fb38dad4051d94024c88df49b667caea9c84"
+checksum = "02b3e5e68a3a1a02aad3ec490a98007cbc13c37cbe84a3cd7b8e406d76e7f778"
 dependencies = [
  "unicode-ident",
 ]
@@ -200,9 +412,9 @@ dependencies = [
 
 [[package]]
 name = "r-efi"
-version = "5.2.0"
+version = "5.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "74765f6d916ee2faa39bc8e68e4f3ed8949b48cccdac59983d287a7cb71ce9c5"
+checksum = "69cdb34c158ceb288df11e18b4bd39de994f6657d83847bdffdbd7f346754b0f"
 
 [[package]]
 name = "redox_users"
@@ -210,50 +422,21 @@ version = "0.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "dd6f9d3d47bdd2ad6945c5015a226ec6155d0bcdfd8f7cd29f86b71f8de99d2b"
 dependencies = [
- "getrandom 0.2.15",
+ "getrandom 0.2.16",
  "libredox",
  "thiserror",
 ]
 
 [[package]]
-name = "regex"
-version = "1.11.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b544ef1b4eac5dc2db33ea63606ae9ffcfac26c1416a2806ae0bf5f56b201191"
-dependencies = [
- "aho-corasick",
- "memchr",
- "regex-automata",
- "regex-syntax",
-]
-
-[[package]]
-name = "regex-automata"
-version = "0.4.9"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "809e8dc61f6de73b46c85f4c96486310fe304c434cfa43669d7b40f711150908"
-dependencies = [
- "aho-corasick",
- "memchr",
- "regex-syntax",
-]
-
-[[package]]
-name = "regex-syntax"
-version = "0.8.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2b15c43186be67a4fd63bee50d0303afffcef381492ebe2c5d87f324e1b8815c"
-
-[[package]]
 name = "rustc-build-sysroot"
-version = "0.5.8"
+version = "0.5.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "16d115ad7e26e0d1337f64ae6598f758194696afc2e9f34c8a6f24582529c3dc"
+checksum = "fdb13874a0e55baf4ac3d49d38206aecb31a55b75d6c4d04fd850b53942c8cc8"
 dependencies = [
  "anyhow",
- "regex",
  "rustc_version",
  "tempfile",
+ "toml",
  "walkdir",
 ]
 
@@ -274,15 +457,15 @@ dependencies = [
 
 [[package]]
 name = "rustix"
-version = "1.0.5"
+version = "1.0.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d97817398dd4bb2e6da002002db259209759911da105da92bec29ccb12cf58bf"
+checksum = "11181fbabf243db407ef8df94a6ce0b2f9a733bd8be4ad02b4eda9602296cac8"
 dependencies = [
  "bitflags",
  "errno",
  "libc",
  "linux-raw-sys",
- "windows-sys",
+ "windows-sys 0.60.2",
 ]
 
 [[package]]
@@ -319,6 +502,27 @@ dependencies = [
 ]
 
 [[package]]
+name = "serde-untagged"
+version = "0.1.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "299d9c19d7d466db4ab10addd5703e4c615dec2a5a16dbbafe191045e87ee66e"
+dependencies = [
+ "erased-serde",
+ "serde",
+ "typeid",
+]
+
+[[package]]
+name = "serde-value"
+version = "0.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f3a1a3341211875ef120e117ea7fd5228530ae7e7036a779fdc9117be6b3282c"
+dependencies = [
+ "ordered-float",
+ "serde",
+]
+
+[[package]]
 name = "serde_derive"
 version = "1.0.219"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -331,9 +535,9 @@ dependencies = [
 
 [[package]]
 name = "serde_json"
-version = "1.0.140"
+version = "1.0.141"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "20068b6e96dc6c9bd23e01df8827e6c7e1f2fddd43c21810382803c136b99373"
+checksum = "30b9eff21ebe718216c6ec64e1d9ac57087aad11efc64e32002bce4a0d4c03d3"
 dependencies = [
  "itoa",
  "memchr",
@@ -342,10 +546,31 @@ dependencies = [
 ]
 
 [[package]]
+name = "serde_spanned"
+version = "0.6.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bf41e0cfaf7226dca15e8197172c295a782857fcb97fad1808a166870dee75a3"
+dependencies = [
+ "serde",
+]
+
+[[package]]
+name = "smallvec"
+version = "1.15.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "67b1b7a3b5fe4f1376887184045fcf45c69e92af734b7aaddc05fb777b6fbd03"
+
+[[package]]
+name = "stable_deref_trait"
+version = "1.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a8f112729512f8e442d81f95a8a7ddf2b7c6b8a1a6f509a95864142b30cab2d3"
+
+[[package]]
 name = "syn"
-version = "2.0.100"
+version = "2.0.104"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b09a44accad81e1ba1cd74a32461ba89dee89095ba17b32f5d03683b1b1fc2a0"
+checksum = "17b6f705963418cdb9927482fa304bc562ece2fdd4f616084c50b7023b435a40"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -353,16 +578,27 @@ dependencies = [
 ]
 
 [[package]]
+name = "synstructure"
+version = "0.13.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "728a70f3dbaf5bab7f0c4b1ac8d7ae5ea60a4b5549c8a5914361c99147a709d2"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
 name = "tempfile"
-version = "3.19.1"
+version = "3.20.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7437ac7763b9b123ccf33c338a5cc1bac6f69b45a136c19bdd8a65e3916435bf"
+checksum = "e8a64e3985349f2441a1a9ef0b853f869006c3855f2cda6862a94d26ebb9d6a1"
 dependencies = [
  "fastrand",
- "getrandom 0.3.2",
+ "getrandom 0.3.3",
  "once_cell",
  "rustix",
- "windows-sys",
+ "windows-sys 0.59.0",
 ]
 
 [[package]]
@@ -386,12 +622,93 @@ dependencies = [
 ]
 
 [[package]]
+name = "tinystr"
+version = "0.8.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5d4f6d1145dcb577acf783d4e601bc1d76a13337bb54e6233add580b07344c8b"
+dependencies = [
+ "displaydoc",
+ "zerovec",
+]
+
+[[package]]
+name = "toml"
+version = "0.8.23"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dc1beb996b9d83529a9e75c17a1686767d148d70663143c7854d8b4a09ced362"
+dependencies = [
+ "indexmap",
+ "serde",
+ "serde_spanned",
+ "toml_datetime",
+ "toml_edit",
+]
+
+[[package]]
+name = "toml_datetime"
+version = "0.6.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "22cddaf88f4fbc13c51aebbf5f8eceb5c7c5a9da2ac40a13519eb5b0a0e8f11c"
+dependencies = [
+ "serde",
+]
+
+[[package]]
+name = "toml_edit"
+version = "0.22.27"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "41fe8c660ae4257887cf66394862d21dbca4a6ddd26f04a3560410406a2f819a"
+dependencies = [
+ "indexmap",
+ "serde",
+ "serde_spanned",
+ "toml_datetime",
+ "toml_write",
+ "winnow",
+]
+
+[[package]]
+name = "toml_write"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5d99f8c9a7727884afe522e9bd5edbfc91a3312b36a77b5fb8926e4c31a41801"
+
+[[package]]
+name = "typeid"
+version = "1.0.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bc7d623258602320d5c55d1bc22793b57daff0ec7efc270ea7d55ce1d5f5471c"
+
+[[package]]
 name = "unicode-ident"
 version = "1.0.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5a5f39404a5da50712a4c1eecf25e90dd62b613502b7e925fd4e4d19b5c96512"
 
 [[package]]
+name = "unicode-xid"
+version = "0.2.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ebc1c04c71510c7f702b52b7c350734c9ff1295c464a03335b00bb84fc54f853"
+
+[[package]]
+name = "url"
+version = "2.5.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "32f8b686cadd1473f4bd0117a5d28d36b1ade384ea9b5069a1c40aefed7fda60"
+dependencies = [
+ "form_urlencoded",
+ "idna",
+ "percent-encoding",
+]
+
+[[package]]
+name = "utf8_iter"
+version = "1.0.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b6c140620e7ffbb22c2dee59cafe6084a59b5ffc27a8859a5f0d494b5d52b6be"
+
+[[package]]
 name = "walkdir"
 version = "2.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -403,9 +720,9 @@ dependencies = [
 
 [[package]]
 name = "wasi"
-version = "0.11.0+wasi-snapshot-preview1"
+version = "0.11.1+wasi-snapshot-preview1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9c8d87e72b64a3b4db28d11ce29237c246188f4f51057d65a7eab63b7987e423"
+checksum = "ccf3ec651a847eb01de73ccad15eb7d99f80485de043efb2f370cd654f4ea44b"
 
 [[package]]
 name = "wasi"
@@ -422,7 +739,7 @@ version = "0.1.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "cf221c93e13a30d793f7645a0e7762c55d169dbb0a49671918a2319d289b10bb"
 dependencies = [
- "windows-sys",
+ "windows-sys 0.59.0",
 ]
 
 [[package]]
@@ -431,7 +748,16 @@ version = "0.59.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1e38bc4d79ed67fd075bcc251a1c39b32a1776bbe92e5bef1f0bf1f8c531853b"
 dependencies = [
- "windows-targets",
+ "windows-targets 0.52.6",
+]
+
+[[package]]
+name = "windows-sys"
+version = "0.60.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f2f500e4d28234f72040990ec9d39e3a6b950f9f22d3dba18416c35882612bcb"
+dependencies = [
+ "windows-targets 0.53.2",
 ]
 
 [[package]]
@@ -440,14 +766,30 @@ version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9b724f72796e036ab90c1021d4780d4d3d648aca59e491e6b98e725b84e99973"
 dependencies = [
- "windows_aarch64_gnullvm",
- "windows_aarch64_msvc",
- "windows_i686_gnu",
- "windows_i686_gnullvm",
- "windows_i686_msvc",
- "windows_x86_64_gnu",
- "windows_x86_64_gnullvm",
- "windows_x86_64_msvc",
+ "windows_aarch64_gnullvm 0.52.6",
+ "windows_aarch64_msvc 0.52.6",
+ "windows_i686_gnu 0.52.6",
+ "windows_i686_gnullvm 0.52.6",
+ "windows_i686_msvc 0.52.6",
+ "windows_x86_64_gnu 0.52.6",
+ "windows_x86_64_gnullvm 0.52.6",
+ "windows_x86_64_msvc 0.52.6",
+]
+
+[[package]]
+name = "windows-targets"
+version = "0.53.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c66f69fcc9ce11da9966ddb31a40968cad001c5bedeb5c2b82ede4253ab48aef"
+dependencies = [
+ "windows_aarch64_gnullvm 0.53.0",
+ "windows_aarch64_msvc 0.53.0",
+ "windows_i686_gnu 0.53.0",
+ "windows_i686_gnullvm 0.53.0",
+ "windows_i686_msvc 0.53.0",
+ "windows_x86_64_gnu 0.53.0",
+ "windows_x86_64_gnullvm 0.53.0",
+ "windows_x86_64_msvc 0.53.0",
 ]
 
 [[package]]
@@ -457,48 +799,105 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "32a4622180e7a0ec044bb555404c800bc9fd9ec262ec147edd5989ccd0c02cd3"
 
 [[package]]
+name = "windows_aarch64_gnullvm"
+version = "0.53.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "86b8d5f90ddd19cb4a147a5fa63ca848db3df085e25fee3cc10b39b6eebae764"
+
+[[package]]
 name = "windows_aarch64_msvc"
 version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "09ec2a7bb152e2252b53fa7803150007879548bc709c039df7627cabbd05d469"
 
 [[package]]
+name = "windows_aarch64_msvc"
+version = "0.53.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c7651a1f62a11b8cbd5e0d42526e55f2c99886c77e007179efff86c2b137e66c"
+
+[[package]]
 name = "windows_i686_gnu"
 version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8e9b5ad5ab802e97eb8e295ac6720e509ee4c243f69d781394014ebfe8bbfa0b"
 
 [[package]]
+name = "windows_i686_gnu"
+version = "0.53.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c1dc67659d35f387f5f6c479dc4e28f1d4bb90ddd1a5d3da2e5d97b42d6272c3"
+
+[[package]]
 name = "windows_i686_gnullvm"
 version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0eee52d38c090b3caa76c563b86c3a4bd71ef1a819287c19d586d7334ae8ed66"
 
 [[package]]
+name = "windows_i686_gnullvm"
+version = "0.53.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9ce6ccbdedbf6d6354471319e781c0dfef054c81fbc7cf83f338a4296c0cae11"
+
+[[package]]
 name = "windows_i686_msvc"
 version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "240948bc05c5e7c6dabba28bf89d89ffce3e303022809e73deaefe4f6ec56c66"
 
 [[package]]
+name = "windows_i686_msvc"
+version = "0.53.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "581fee95406bb13382d2f65cd4a908ca7b1e4c2f1917f143ba16efe98a589b5d"
+
+[[package]]
 name = "windows_x86_64_gnu"
 version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "147a5c80aabfbf0c7d901cb5895d1de30ef2907eb21fbbab29ca94c5b08b1a78"
 
 [[package]]
+name = "windows_x86_64_gnu"
+version = "0.53.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2e55b5ac9ea33f2fc1716d1742db15574fd6fc8dadc51caab1c16a3d3b4190ba"
+
+[[package]]
 name = "windows_x86_64_gnullvm"
 version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "24d5b23dc417412679681396f2b49f3de8c1473deb516bd34410872eff51ed0d"
 
 [[package]]
+name = "windows_x86_64_gnullvm"
+version = "0.53.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0a6e035dd0599267ce1ee132e51c27dd29437f63325753051e71dd9e42406c57"
+
+[[package]]
 name = "windows_x86_64_msvc"
 version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "589f6da84c646204747d1270a2a5661ea66ed1cced2631d546fdfb155959f9ec"
 
 [[package]]
+name = "windows_x86_64_msvc"
+version = "0.53.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "271414315aff87387382ec3d271b52d7ae78726f5d44ac98b4f4030c91880486"
+
+[[package]]
+name = "winnow"
+version = "0.7.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f3edebf492c8125044983378ecb5766203ad3b4c2f7a922bd7dd207f6d443e95"
+dependencies = [
+ "memchr",
+]
+
+[[package]]
 name = "wit-bindgen-rt"
 version = "0.39.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -506,3 +905,87 @@ checksum = "6f42320e61fe2cfd34354ecb597f86f413484a798ba44a8ca1165c58d42da6c1"
 dependencies = [
  "bitflags",
 ]
+
+[[package]]
+name = "writeable"
+version = "0.6.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ea2f10b9bb0928dfb1b42b65e1f9e36f7f54dbdf08457afefb38afcdec4fa2bb"
+
+[[package]]
+name = "yoke"
+version = "0.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5f41bb01b8226ef4bfd589436a297c53d118f65921786300e427be8d487695cc"
+dependencies = [
+ "serde",
+ "stable_deref_trait",
+ "yoke-derive",
+ "zerofrom",
+]
+
+[[package]]
+name = "yoke-derive"
+version = "0.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "38da3c9736e16c5d3c8c597a9aaa5d1fa565d0532ae05e27c24aa62fb32c0ab6"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+ "synstructure",
+]
+
+[[package]]
+name = "zerofrom"
+version = "0.1.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "50cc42e0333e05660c3587f3bf9d0478688e15d870fab3346451ce7f8c9fbea5"
+dependencies = [
+ "zerofrom-derive",
+]
+
+[[package]]
+name = "zerofrom-derive"
+version = "0.1.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d71e5d6e06ab090c67b5e44993ec16b72dcbaabc526db883a360057678b48502"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+ "synstructure",
+]
+
+[[package]]
+name = "zerotrie"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "36f0bbd478583f79edad978b407914f61b2972f5af6fa089686016be8f9af595"
+dependencies = [
+ "displaydoc",
+ "yoke",
+ "zerofrom",
+]
+
+[[package]]
+name = "zerovec"
+version = "0.11.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4a05eb080e015ba39cc9e23bbe5e7fb04d5fb040350f99f34e338d5fdd294428"
+dependencies = [
+ "yoke",
+ "zerofrom",
+ "zerovec-derive",
+]
+
+[[package]]
+name = "zerovec-derive"
+version = "0.11.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5b96237efa0c878c64bd89c436f661be4e46b2f3eff1ebb976f7ef2321d2f58f"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
diff --git a/src/tools/miri/cargo-miri/Cargo.toml b/src/tools/miri/cargo-miri/Cargo.toml
index e08733959cc..77cb1df8e74 100644
--- a/src/tools/miri/cargo-miri/Cargo.toml
+++ b/src/tools/miri/cargo-miri/Cargo.toml
@@ -17,7 +17,7 @@ doctest = false # and no doc tests
 directories = "6"
 rustc_version = "0.4"
 serde_json = "1.0.40"
-cargo_metadata = "0.19"
+cargo_metadata = "0.21"
 rustc-build-sysroot = "0.5.8"
 
 # Enable some feature flags that dev-dependencies need but dependencies
diff --git a/src/tools/miri/cargo-miri/src/util.rs b/src/tools/miri/cargo-miri/src/util.rs
index 43b2a1b6173..82c6a929357 100644
--- a/src/tools/miri/cargo-miri/src/util.rs
+++ b/src/tools/miri/cargo-miri/src/util.rs
@@ -129,7 +129,8 @@ pub fn exec(mut cmd: Command) -> ! {
     // On non-Unix imitate POSIX exec as closely as we can
     #[cfg(not(unix))]
     {
-        let exit_status = cmd.status().expect("failed to run command");
+        let exit_status =
+            cmd.status().unwrap_or_else(|err| panic!("failed to run `{cmd:?}`:\n{err}"));
         std::process::exit(exit_status.code().unwrap_or(-1))
     }
     // On Unix targets, actually exec.
@@ -138,8 +139,8 @@ pub fn exec(mut cmd: Command) -> ! {
     #[cfg(unix)]
     {
         use std::os::unix::process::CommandExt;
-        let error = cmd.exec();
-        panic!("failed to run command: {error}")
+        let err = cmd.exec();
+        panic!("failed to run `{cmd:?}`:\n{err}")
     }
 }
 
diff --git a/src/tools/miri/etc/rust_analyzer_helix.toml b/src/tools/miri/etc/rust_analyzer_helix.toml
index 9bfb09120d8..91e4070478c 100644
--- a/src/tools/miri/etc/rust_analyzer_helix.toml
+++ b/src/tools/miri/etc/rust_analyzer_helix.toml
@@ -26,5 +26,6 @@ invocationStrategy = "once"
 overrideCommand = [
     "./miri",
     "check",
+    "--no-default-features",
     "--message-format=json",
 ]
diff --git a/src/tools/miri/etc/rust_analyzer_vscode.json b/src/tools/miri/etc/rust_analyzer_vscode.json
index c646953e92b..6917c6a1fd8 100644
--- a/src/tools/miri/etc/rust_analyzer_vscode.json
+++ b/src/tools/miri/etc/rust_analyzer_vscode.json
@@ -20,6 +20,7 @@
     "rust-analyzer.cargo.buildScripts.overrideCommand": [
         "./miri",
         "check",
+        "--no-default-features",
         "--message-format=json",
     ],
 }
diff --git a/src/tools/miri/miri b/src/tools/miri/miri
index 549998ae44a..a5f2bb1550a 100755
--- a/src/tools/miri/miri
+++ b/src/tools/miri/miri
@@ -15,8 +15,9 @@ if [ -n "$MIRI_IN_RA" ]; then
   CARGO_FLAGS+=("--message-format=json" "-Zroot-dir=$ROOT_DIR")
   TARGET_DIR="$ROOT_DIR"/target
 fi
+
 # Run cargo.
-cargo $TOOLCHAIN build --manifest-path "$ROOT_DIR"/miri-script/Cargo.toml \
+${CARGO:-cargo} $TOOLCHAIN build --manifest-path "$ROOT_DIR"/miri-script/Cargo.toml \
   --target-dir "$TARGET_DIR" "${CARGO_FLAGS[@]}" || \
   ( echo "Failed to build miri-script. Is the 'stable' toolchain installed?"; exit 1 )
 # Instead of doing just `cargo run --manifest-path .. $@`, we invoke miri-script binary directly.
diff --git a/src/tools/miri/miri-script/Cargo.lock b/src/tools/miri/miri-script/Cargo.lock
index 3494a241ec5..a049bfcbccd 100644
--- a/src/tools/miri/miri-script/Cargo.lock
+++ b/src/tools/miri/miri-script/Cargo.lock
@@ -4,9 +4,9 @@ version = 4
 
 [[package]]
 name = "anstream"
-version = "0.6.18"
+version = "0.6.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8acc5369981196006228e28809f761875c0327210a891e941f4c683b3a99529b"
+checksum = "301af1932e46185686725e0fad2f8f2aa7da69dd70bf6ecc44d6b703844a3933"
 dependencies = [
  "anstyle",
  "anstyle-parse",
@@ -19,62 +19,62 @@ dependencies = [
 
 [[package]]
 name = "anstyle"
-version = "1.0.10"
+version = "1.0.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "55cc3b69f167a1ef2e161439aa98aed94e6028e5f9a59be9a6ffb47aef1651f9"
+checksum = "862ed96ca487e809f1c8e5a8447f6ee2cf102f846893800b20cebdf541fc6bbd"
 
 [[package]]
 name = "anstyle-parse"
-version = "0.2.6"
+version = "0.2.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3b2d16507662817a6a20a9ea92df6652ee4f94f914589377d69f3b21bc5798a9"
+checksum = "4e7644824f0aa2c7b9384579234ef10eb7efb6a0deb83f9630a49594dd9c15c2"
 dependencies = [
  "utf8parse",
 ]
 
 [[package]]
 name = "anstyle-query"
-version = "1.1.2"
+version = "1.1.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "79947af37f4177cfead1110013d678905c37501914fba0efea834c3fe9a8d60c"
+checksum = "6c8bdeb6047d8983be085bab0ba1472e6dc604e7041dbf6fcd5e71523014fae9"
 dependencies = [
- "windows-sys",
+ "windows-sys 0.59.0",
 ]
 
 [[package]]
 name = "anstyle-wincon"
-version = "3.0.7"
+version = "3.0.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ca3534e77181a9cc07539ad51f2141fe32f6c3ffd4df76db8ad92346b003ae4e"
+checksum = "403f75924867bb1033c59fbf0797484329750cfbe3c4325cd33127941fabc882"
 dependencies = [
  "anstyle",
- "once_cell",
- "windows-sys",
+ "once_cell_polyfill",
+ "windows-sys 0.59.0",
 ]
 
 [[package]]
 name = "anyhow"
-version = "1.0.97"
+version = "1.0.98"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dcfed56ad506cb2c684a14971b8861fdc3baaaae314b9e5f9bb532cbe3ba7a4f"
+checksum = "e16d2d3311acee920a9eb8d33b8cbc1787ce4a264e85f964c2404b969bdcd487"
 
 [[package]]
 name = "bitflags"
-version = "2.9.0"
+version = "2.9.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5c8214115b7bf84099f1309324e63141d4c5d7cc26862f97a0a857dbefe165bd"
+checksum = "1b8e56985ec62d17e9c1001dc89c88ecd7dc08e47eba5ec7c29c7b5eeecde967"
 
 [[package]]
 name = "cfg-if"
-version = "1.0.0"
+version = "1.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
+checksum = "9555578bc9e57714c812a1f84e4fc5b4d21fcb063490c624de019f7464c91268"
 
 [[package]]
 name = "clap"
-version = "4.5.35"
+version = "4.5.41"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d8aa86934b44c19c50f87cc2790e19f54f7a67aedb64101c2e1a2e5ecfb73944"
+checksum = "be92d32e80243a54711e5d7ce823c35c41c9d929dc4ab58e1276f625841aadf9"
 dependencies = [
  "clap_builder",
  "clap_derive",
@@ -82,9 +82,9 @@ dependencies = [
 
 [[package]]
 name = "clap_builder"
-version = "4.5.35"
+version = "4.5.41"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2414dbb2dd0695280da6ea9261e327479e9d37b0630f6b53ba2a11c60c679fd9"
+checksum = "707eab41e9622f9139419d573eca0900137718000c517d47da73045f54331c3d"
 dependencies = [
  "anstream",
  "anstyle",
@@ -94,9 +94,9 @@ dependencies = [
 
 [[package]]
 name = "clap_derive"
-version = "4.5.32"
+version = "4.5.41"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "09176aae279615badda0765c0c0b3f6ed53f4709118af73cf4655d85d1530cd7"
+checksum = "ef4f52386a59ca4c860f7393bcf8abd8dfd91ecccc0f774635ff68e92eeef491"
 dependencies = [
  "heck",
  "proc-macro2",
@@ -106,15 +106,15 @@ dependencies = [
 
 [[package]]
 name = "clap_lex"
-version = "0.7.4"
+version = "0.7.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f46ad14479a25103f283c0f10005961cf086d8dc42205bb44c46ac563475dca6"
+checksum = "b94f61472cee1439c0b966b47e3aca9ae07e45d070759512cd390ea2bebc6675"
 
 [[package]]
 name = "colorchoice"
-version = "1.0.3"
+version = "1.0.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5b63caa9aa9397e2d9480a9b13673856c78d8ac123288526c37d7839f2a86990"
+checksum = "b05b61dc5112cbb17e4b6cd61790d9845d13888356391624cbe7e41efeac1e75"
 
 [[package]]
 name = "directories"
@@ -134,7 +134,7 @@ dependencies = [
  "libc",
  "option-ext",
  "redox_users",
- "windows-sys",
+ "windows-sys 0.60.2",
 ]
 
 [[package]]
@@ -150,19 +150,13 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "48c757948c5ede0e46177b7add2e67155f70e33c07fea8284df6576da70b3719"
 
 [[package]]
-name = "env_home"
-version = "0.1.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c7f84e12ccf0a7ddc17a6c41c93326024c42920d7ee630d04950e6926645c0fe"
-
-[[package]]
 name = "errno"
-version = "0.3.11"
+version = "0.3.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "976dd42dc7e85965fe702eb8164f21f450704bdde31faefd6471dba214cb594e"
+checksum = "778e2ac28f6c47af28e4907f13ffd1e1ddbd400980a9abd7c8df189bf578a5ad"
 dependencies = [
  "libc",
- "windows-sys",
+ "windows-sys 0.60.2",
 ]
 
 [[package]]
@@ -173,20 +167,20 @@ checksum = "37909eebbb50d72f9059c3b6d82c0463f2ff062c9e95845c43a6c9c0355411be"
 
 [[package]]
 name = "getrandom"
-version = "0.2.15"
+version = "0.2.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c4567c8db10ae91089c99af84c68c38da3ec2f087c3f82960bcdbf3656b6f4d7"
+checksum = "335ff9f135e4384c8150d6f27c6daed433577f86b4750418338c01a1a2528592"
 dependencies = [
  "cfg-if",
  "libc",
- "wasi 0.11.0+wasi-snapshot-preview1",
+ "wasi 0.11.1+wasi-snapshot-preview1",
 ]
 
 [[package]]
 name = "getrandom"
-version = "0.3.2"
+version = "0.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "73fea8450eea4bac3940448fb7ae50d91f034f941199fcd9d909a5a07aa455f0"
+checksum = "26145e563e54f2cadc477553f1ec5ee650b00862f0a58bcd12cbdc5f0ea2d2f4"
 dependencies = [
  "cfg-if",
  "libc",
@@ -223,15 +217,15 @@ checksum = "4a5f13b858c8d314ee3e8f639011f7ccefe71f97f96e50151fb991f267928e2c"
 
 [[package]]
 name = "libc"
-version = "0.2.171"
+version = "0.2.174"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c19937216e9d3aa9956d9bb8dfc0b0c8beb6058fc4f7a4dc4d850edf86a237d6"
+checksum = "1171693293099992e19cddea4e8b849964e9846f4acee11b3948bcc337be8776"
 
 [[package]]
 name = "libredox"
-version = "0.1.3"
+version = "0.1.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c0ff37bd590ca25063e35af745c343cb7a0271906fb7b37e4813e8f79f00268d"
+checksum = "1580801010e535496706ba011c15f8532df6b42297d2e471fec38ceadd8c0638"
 dependencies = [
  "bitflags",
  "libc",
@@ -239,21 +233,15 @@ dependencies = [
 
 [[package]]
 name = "linux-raw-sys"
-version = "0.4.15"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d26c52dbd32dccf2d10cac7725f8eae5296885fb5703b261f7d0a0739ec807ab"
-
-[[package]]
-name = "linux-raw-sys"
-version = "0.9.3"
+version = "0.9.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fe7db12097d22ec582439daf8618b8fdd1a7bef6270e9af3b1ebcd30893cf413"
+checksum = "cd945864f07fe9f5371a27ad7b52a172b4b499999f1d97574c9fa68373937e12"
 
 [[package]]
 name = "memchr"
-version = "2.7.4"
+version = "2.7.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "78ca9ab1a0babb1e7d5695e3530886289c18cf2f87ec19a575a0abdce112e3a3"
+checksum = "32a282da65faaf38286cf3be983213fcf1d2e2a58700e808f83f4ea9a4804bc0"
 
 [[package]]
 name = "miri-script"
@@ -272,7 +260,6 @@ dependencies = [
  "shell-words",
  "tempfile",
  "walkdir",
- "which",
  "xshell",
 ]
 
@@ -283,6 +270,12 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "42f5e15c9953c5e4ccceeb2e7382a716482c34515315f7b03532b8b4e8393d2d"
 
 [[package]]
+name = "once_cell_polyfill"
+version = "1.70.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a4895175b425cb1f87721b59f0f286c2092bd4af812243672510e1ac53e2e0ad"
+
+[[package]]
 name = "option-ext"
 version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -296,9 +289,9 @@ checksum = "a6e819bbd49d5939f682638fa54826bf1650abddcd65d000923de8ad63cc7d15"
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.94"
+version = "1.0.95"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a31971752e70b8b2686d7e46ec17fb38dad4051d94024c88df49b667caea9c84"
+checksum = "02b3e5e68a3a1a02aad3ec490a98007cbc13c37cbe84a3cd7b8e406d76e7f778"
 dependencies = [
  "unicode-ident",
 ]
@@ -314,9 +307,9 @@ dependencies = [
 
 [[package]]
 name = "r-efi"
-version = "5.2.0"
+version = "5.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "74765f6d916ee2faa39bc8e68e4f3ed8949b48cccdac59983d287a7cb71ce9c5"
+checksum = "69cdb34c158ceb288df11e18b4bd39de994f6657d83847bdffdbd7f346754b0f"
 
 [[package]]
 name = "redox_users"
@@ -324,7 +317,7 @@ version = "0.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "dd6f9d3d47bdd2ad6945c5015a226ec6155d0bcdfd8f7cd29f86b71f8de99d2b"
 dependencies = [
- "getrandom 0.2.15",
+ "getrandom 0.2.16",
  "libredox",
  "thiserror",
 ]
@@ -340,28 +333,15 @@ dependencies = [
 
 [[package]]
 name = "rustix"
-version = "0.38.44"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fdb5bc1ae2baa591800df16c9ca78619bf65c0488b41b96ccec5d11220d8c154"
-dependencies = [
- "bitflags",
- "errno",
- "libc",
- "linux-raw-sys 0.4.15",
- "windows-sys",
-]
-
-[[package]]
-name = "rustix"
-version = "1.0.5"
+version = "1.0.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d97817398dd4bb2e6da002002db259209759911da105da92bec29ccb12cf58bf"
+checksum = "11181fbabf243db407ef8df94a6ce0b2f9a733bd8be4ad02b4eda9602296cac8"
 dependencies = [
  "bitflags",
  "errno",
  "libc",
- "linux-raw-sys 0.9.3",
- "windows-sys",
+ "linux-raw-sys",
+ "windows-sys 0.60.2",
 ]
 
 [[package]]
@@ -407,9 +387,9 @@ dependencies = [
 
 [[package]]
 name = "serde_json"
-version = "1.0.140"
+version = "1.0.141"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "20068b6e96dc6c9bd23e01df8827e6c7e1f2fddd43c21810382803c136b99373"
+checksum = "30b9eff21ebe718216c6ec64e1d9ac57087aad11efc64e32002bce4a0d4c03d3"
 dependencies = [
  "itoa",
  "memchr",
@@ -431,9 +411,9 @@ checksum = "7da8b5736845d9f2fcb837ea5d9e2628564b3b043a70948a3f0b778838c5fb4f"
 
 [[package]]
 name = "syn"
-version = "2.0.100"
+version = "2.0.104"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b09a44accad81e1ba1cd74a32461ba89dee89095ba17b32f5d03683b1b1fc2a0"
+checksum = "17b6f705963418cdb9927482fa304bc562ece2fdd4f616084c50b7023b435a40"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -442,15 +422,15 @@ dependencies = [
 
 [[package]]
 name = "tempfile"
-version = "3.19.1"
+version = "3.20.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7437ac7763b9b123ccf33c338a5cc1bac6f69b45a136c19bdd8a65e3916435bf"
+checksum = "e8a64e3985349f2441a1a9ef0b853f869006c3855f2cda6862a94d26ebb9d6a1"
 dependencies = [
  "fastrand",
- "getrandom 0.3.2",
+ "getrandom 0.3.3",
  "once_cell",
- "rustix 1.0.5",
- "windows-sys",
+ "rustix",
+ "windows-sys 0.59.0",
 ]
 
 [[package]]
@@ -497,9 +477,9 @@ dependencies = [
 
 [[package]]
 name = "wasi"
-version = "0.11.0+wasi-snapshot-preview1"
+version = "0.11.1+wasi-snapshot-preview1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9c8d87e72b64a3b4db28d11ce29237c246188f4f51057d65a7eab63b7987e423"
+checksum = "ccf3ec651a847eb01de73ccad15eb7d99f80485de043efb2f370cd654f4ea44b"
 
 [[package]]
 name = "wasi"
@@ -511,24 +491,12 @@ dependencies = [
 ]
 
 [[package]]
-name = "which"
-version = "7.0.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2774c861e1f072b3aadc02f8ba886c26ad6321567ecc294c935434cad06f1283"
-dependencies = [
- "either",
- "env_home",
- "rustix 0.38.44",
- "winsafe",
-]
-
-[[package]]
 name = "winapi-util"
 version = "0.1.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "cf221c93e13a30d793f7645a0e7762c55d169dbb0a49671918a2319d289b10bb"
 dependencies = [
- "windows-sys",
+ "windows-sys 0.59.0",
 ]
 
 [[package]]
@@ -537,7 +505,16 @@ version = "0.59.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1e38bc4d79ed67fd075bcc251a1c39b32a1776bbe92e5bef1f0bf1f8c531853b"
 dependencies = [
- "windows-targets",
+ "windows-targets 0.52.6",
+]
+
+[[package]]
+name = "windows-sys"
+version = "0.60.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f2f500e4d28234f72040990ec9d39e3a6b950f9f22d3dba18416c35882612bcb"
+dependencies = [
+ "windows-targets 0.53.2",
 ]
 
 [[package]]
@@ -546,14 +523,30 @@ version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9b724f72796e036ab90c1021d4780d4d3d648aca59e491e6b98e725b84e99973"
 dependencies = [
- "windows_aarch64_gnullvm",
- "windows_aarch64_msvc",
- "windows_i686_gnu",
- "windows_i686_gnullvm",
- "windows_i686_msvc",
- "windows_x86_64_gnu",
- "windows_x86_64_gnullvm",
- "windows_x86_64_msvc",
+ "windows_aarch64_gnullvm 0.52.6",
+ "windows_aarch64_msvc 0.52.6",
+ "windows_i686_gnu 0.52.6",
+ "windows_i686_gnullvm 0.52.6",
+ "windows_i686_msvc 0.52.6",
+ "windows_x86_64_gnu 0.52.6",
+ "windows_x86_64_gnullvm 0.52.6",
+ "windows_x86_64_msvc 0.52.6",
+]
+
+[[package]]
+name = "windows-targets"
+version = "0.53.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c66f69fcc9ce11da9966ddb31a40968cad001c5bedeb5c2b82ede4253ab48aef"
+dependencies = [
+ "windows_aarch64_gnullvm 0.53.0",
+ "windows_aarch64_msvc 0.53.0",
+ "windows_i686_gnu 0.53.0",
+ "windows_i686_gnullvm 0.53.0",
+ "windows_i686_msvc 0.53.0",
+ "windows_x86_64_gnu 0.53.0",
+ "windows_x86_64_gnullvm 0.53.0",
+ "windows_x86_64_msvc 0.53.0",
 ]
 
 [[package]]
@@ -563,52 +556,94 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "32a4622180e7a0ec044bb555404c800bc9fd9ec262ec147edd5989ccd0c02cd3"
 
 [[package]]
+name = "windows_aarch64_gnullvm"
+version = "0.53.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "86b8d5f90ddd19cb4a147a5fa63ca848db3df085e25fee3cc10b39b6eebae764"
+
+[[package]]
 name = "windows_aarch64_msvc"
 version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "09ec2a7bb152e2252b53fa7803150007879548bc709c039df7627cabbd05d469"
 
 [[package]]
+name = "windows_aarch64_msvc"
+version = "0.53.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c7651a1f62a11b8cbd5e0d42526e55f2c99886c77e007179efff86c2b137e66c"
+
+[[package]]
 name = "windows_i686_gnu"
 version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8e9b5ad5ab802e97eb8e295ac6720e509ee4c243f69d781394014ebfe8bbfa0b"
 
 [[package]]
+name = "windows_i686_gnu"
+version = "0.53.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c1dc67659d35f387f5f6c479dc4e28f1d4bb90ddd1a5d3da2e5d97b42d6272c3"
+
+[[package]]
 name = "windows_i686_gnullvm"
 version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0eee52d38c090b3caa76c563b86c3a4bd71ef1a819287c19d586d7334ae8ed66"
 
 [[package]]
+name = "windows_i686_gnullvm"
+version = "0.53.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9ce6ccbdedbf6d6354471319e781c0dfef054c81fbc7cf83f338a4296c0cae11"
+
+[[package]]
 name = "windows_i686_msvc"
 version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "240948bc05c5e7c6dabba28bf89d89ffce3e303022809e73deaefe4f6ec56c66"
 
 [[package]]
+name = "windows_i686_msvc"
+version = "0.53.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "581fee95406bb13382d2f65cd4a908ca7b1e4c2f1917f143ba16efe98a589b5d"
+
+[[package]]
 name = "windows_x86_64_gnu"
 version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "147a5c80aabfbf0c7d901cb5895d1de30ef2907eb21fbbab29ca94c5b08b1a78"
 
 [[package]]
+name = "windows_x86_64_gnu"
+version = "0.53.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2e55b5ac9ea33f2fc1716d1742db15574fd6fc8dadc51caab1c16a3d3b4190ba"
+
+[[package]]
 name = "windows_x86_64_gnullvm"
 version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "24d5b23dc417412679681396f2b49f3de8c1473deb516bd34410872eff51ed0d"
 
 [[package]]
+name = "windows_x86_64_gnullvm"
+version = "0.53.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0a6e035dd0599267ce1ee132e51c27dd29437f63325753051e71dd9e42406c57"
+
+[[package]]
 name = "windows_x86_64_msvc"
 version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "589f6da84c646204747d1270a2a5661ea66ed1cced2631d546fdfb155959f9ec"
 
 [[package]]
-name = "winsafe"
-version = "0.0.19"
+name = "windows_x86_64_msvc"
+version = "0.53.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d135d17ab770252ad95e9a872d365cf3090e3be864a34ab46f48555993efc904"
+checksum = "271414315aff87387382ec3d271b52d7ae78726f5d44ac98b4f4030c91880486"
 
 [[package]]
 name = "wit-bindgen-rt"
diff --git a/src/tools/miri/miri-script/Cargo.toml b/src/tools/miri/miri-script/Cargo.toml
index 9240788d6bc..b3f82cd1d50 100644
--- a/src/tools/miri/miri-script/Cargo.toml
+++ b/src/tools/miri/miri-script/Cargo.toml
@@ -14,7 +14,6 @@ rust-version = "1.85"
 # This is needed to make this package build on stable when the parent package uses unstable cargo features.
 
 [dependencies]
-which = "7"
 walkdir = "2.3"
 itertools = "0.14"
 path_macro = "1.0"
diff --git a/src/tools/miri/miri-script/src/commands.rs b/src/tools/miri/miri-script/src/commands.rs
index e6ebdf54e38..9aaad9ca04a 100644
--- a/src/tools/miri/miri-script/src/commands.rs
+++ b/src/tools/miri/miri-script/src/commands.rs
@@ -198,9 +198,6 @@ impl Command {
     }
 
     fn toolchain(flags: Vec<String>) -> Result<()> {
-        // Make sure rustup-toolchain-install-master is installed.
-        which::which("rustup-toolchain-install-master")
-            .context("Please install rustup-toolchain-install-master by running 'cargo install rustup-toolchain-install-master'")?;
         let sh = Shell::new()?;
         sh.change_dir(miri_dir()?);
         let new_commit = sh.read_file("rust-version")?.trim().to_owned();
@@ -227,7 +224,9 @@ impl Command {
         // Install and setup new toolchain.
         cmd!(sh, "rustup toolchain uninstall miri").run()?;
 
-        cmd!(sh, "rustup-toolchain-install-master -n miri -c cargo -c rust-src -c rustc-dev -c llvm-tools -c rustfmt -c clippy {flags...} -- {new_commit}").run()?;
+        cmd!(sh, "rustup-toolchain-install-master -n miri -c cargo -c rust-src -c rustc-dev -c llvm-tools -c rustfmt -c clippy {flags...} -- {new_commit}")
+            .run()
+            .context("Failed to run rustup-toolchain-install-master. If it is not installed, run 'cargo install rustup-toolchain-install-master'.")?;
         cmd!(sh, "rustup override set miri").run()?;
         // Cleanup.
         cmd!(sh, "cargo clean").run()?;
diff --git a/src/tools/miri/miri-script/src/main.rs b/src/tools/miri/miri-script/src/main.rs
index 673d658cf1d..e41df662ca2 100644
--- a/src/tools/miri/miri-script/src/main.rs
+++ b/src/tools/miri/miri-script/src/main.rs
@@ -75,7 +75,7 @@ pub enum Command {
     ///
     /// Also respects MIRIFLAGS environment variable.
     Run {
-        /// Build the program with the dependencies declared in `test_dependencies/Cargo.toml`.
+        /// Build the program with the dependencies declared in `tests/deps/Cargo.toml`.
         #[arg(long)]
         dep: bool,
         /// Show build progress.
diff --git a/src/tools/miri/miri-script/src/util.rs b/src/tools/miri/miri-script/src/util.rs
index c100cf195ba..6121096f823 100644
--- a/src/tools/miri/miri-script/src/util.rs
+++ b/src/tools/miri/miri-script/src/util.rs
@@ -38,6 +38,8 @@ pub struct MiriEnv {
     pub miri_dir: PathBuf,
     /// active_toolchain is passed as `+toolchain` argument to cargo/rustc invocations.
     toolchain: String,
+    /// The cargo binary to use.
+    cargo_bin: String,
     /// Extra flags to pass to cargo.
     cargo_extra_flags: Vec<String>,
     /// The rustc sysroot
@@ -106,6 +108,9 @@ impl MiriEnv {
             sh.set_var("PATH", new_path);
         }
 
+        // Get the cargo binary to use, if one is set.
+        let cargo_bin = std::env::var("CARGO").unwrap_or_else(|_| "cargo".to_string());
+
         // Get extra flags for cargo.
         let cargo_extra_flags = std::env::var("CARGO_EXTRA_FLAGS").unwrap_or_default();
         let mut cargo_extra_flags = flagsplit(&cargo_extra_flags);
@@ -119,7 +124,7 @@ impl MiriEnv {
         // Also set `-Zroot-dir` for cargo, to print diagnostics relative to the miri dir.
         cargo_extra_flags.push(format!("-Zroot-dir={}", miri_dir.display()));
 
-        Ok(MiriEnv { miri_dir, toolchain, sh, sysroot, cargo_extra_flags, libdir })
+        Ok(MiriEnv { miri_dir, toolchain, sh, sysroot, cargo_bin, cargo_extra_flags, libdir })
     }
 
     /// Make sure the `features` you pass here exist for the specified `crate_dir`. For example, the
@@ -130,12 +135,12 @@ impl MiriEnv {
         cmd: &str,
         features: &[String],
     ) -> Cmd<'_> {
-        let MiriEnv { toolchain, cargo_extra_flags, .. } = self;
+        let MiriEnv { toolchain, cargo_extra_flags, cargo_bin, .. } = self;
         let manifest_path = path!(self.miri_dir / crate_dir.as_ref() / "Cargo.toml");
         let features = features_to_args(features);
         cmd!(
             self.sh,
-            "cargo +{toolchain} {cmd} {cargo_extra_flags...} --manifest-path {manifest_path} {features...}"
+            "{cargo_bin} +{toolchain} {cmd} {cargo_extra_flags...} --manifest-path {manifest_path} {features...}"
         )
     }
 
@@ -147,12 +152,12 @@ impl MiriEnv {
         features: &[String],
         args: impl IntoIterator<Item = impl AsRef<OsStr>>,
     ) -> Result<()> {
-        let MiriEnv { sysroot, toolchain, cargo_extra_flags, .. } = self;
+        let MiriEnv { sysroot, toolchain, cargo_extra_flags, cargo_bin, .. } = self;
         let path = path!(self.miri_dir / crate_dir.as_ref());
         let features = features_to_args(features);
         // Install binaries to the miri toolchain's `sysroot` so they do not interact with other toolchains.
         // (Not using `cargo_cmd` as `install` is special and doesn't use `--manifest-path`.)
-        cmd!(self.sh, "cargo +{toolchain} install {cargo_extra_flags...} --path {path} --force --root {sysroot} {features...} {args...}").run()?;
+        cmd!(self.sh, "{cargo_bin} +{toolchain} install {cargo_extra_flags...} --path {path} --force --root {sysroot} {features...} {args...}").run()?;
         Ok(())
     }
 
diff --git a/src/tools/miri/rust-version b/src/tools/miri/rust-version
index 67f27e7aa2c..d734ec333a5 100644
--- a/src/tools/miri/rust-version
+++ b/src/tools/miri/rust-version
@@ -1 +1 @@
-7f2065a4bae1faed5bab928c670964eafbf43b55
+6707bf0f59485cf054ac1095725df43220e4be20
diff --git a/src/tools/miri/src/alloc/alloc_bytes.rs b/src/tools/miri/src/alloc/alloc_bytes.rs
index 2a253952b27..5d00d3eafcb 100644
--- a/src/tools/miri/src/alloc/alloc_bytes.rs
+++ b/src/tools/miri/src/alloc/alloc_bytes.rs
@@ -1,20 +1,18 @@
 use std::alloc::Layout;
 use std::borrow::Cow;
+use std::cell::RefCell;
+use std::rc::Rc;
 use std::{alloc, slice};
-#[cfg(target_os = "linux")]
-use std::{cell::RefCell, rc::Rc};
 
 use rustc_abi::{Align, Size};
 use rustc_middle::mir::interpret::AllocBytes;
 
-#[cfg(target_os = "linux")]
 use crate::alloc::isolated_alloc::IsolatedAlloc;
 use crate::helpers::ToU64 as _;
 
 #[derive(Clone, Debug)]
 pub enum MiriAllocParams {
     Global,
-    #[cfg(target_os = "linux")]
     Isolated(Rc<RefCell<IsolatedAlloc>>),
 }
 
@@ -56,7 +54,6 @@ impl Drop for MiriAllocBytes {
         unsafe {
             match self.params.clone() {
                 MiriAllocParams::Global => alloc::dealloc(self.ptr, alloc_layout),
-                #[cfg(target_os = "linux")]
                 MiriAllocParams::Isolated(alloc) =>
                     alloc.borrow_mut().dealloc(self.ptr, alloc_layout),
             }
@@ -123,7 +120,6 @@ impl AllocBytes for MiriAllocBytes {
         let alloc_fn = |layout, params: &MiriAllocParams| unsafe {
             match params {
                 MiriAllocParams::Global => alloc::alloc(layout),
-                #[cfg(target_os = "linux")]
                 MiriAllocParams::Isolated(alloc) => alloc.borrow_mut().alloc(layout),
             }
         };
@@ -144,7 +140,6 @@ impl AllocBytes for MiriAllocBytes {
         let alloc_fn = |layout, params: &MiriAllocParams| unsafe {
             match params {
                 MiriAllocParams::Global => alloc::alloc_zeroed(layout),
-                #[cfg(target_os = "linux")]
                 MiriAllocParams::Isolated(alloc) => alloc.borrow_mut().alloc_zeroed(layout),
             }
         };
diff --git a/src/tools/miri/src/alloc/isolated_alloc.rs b/src/tools/miri/src/alloc/isolated_alloc.rs
index 7b2f1a3eebf..1745727b16b 100644
--- a/src/tools/miri/src/alloc/isolated_alloc.rs
+++ b/src/tools/miri/src/alloc/isolated_alloc.rs
@@ -1,7 +1,6 @@
 use std::alloc::Layout;
 use std::ptr::NonNull;
 
-use nix::sys::mman;
 use rustc_index::bit_set::DenseBitSet;
 
 /// How many bytes of memory each bit in the bitset represents.
@@ -44,6 +43,10 @@ impl IsolatedAlloc {
         }
     }
 
+    pub fn page_size(&self) -> usize {
+        self.page_size
+    }
+
     /// For simplicity, we serve small allocations in multiples of COMPRESSION_FACTOR
     /// bytes with at least that alignment.
     #[inline]
@@ -302,50 +305,11 @@ impl IsolatedAlloc {
         }
     }
 
-    /// Returns a list of page addresses managed by the allocator.
-    pub fn pages(&self) -> impl Iterator<Item = usize> {
-        let pages = self.page_ptrs.iter().map(|p| p.expose_provenance().get());
-        pages.chain(self.huge_ptrs.iter().flat_map(|(ptr, size)| {
-            (0..size / self.page_size)
-                .map(|i| ptr.expose_provenance().get().strict_add(i * self.page_size))
-        }))
-    }
-
-    /// Protects all owned memory as `PROT_NONE`, preventing accesses.
-    ///
-    /// SAFETY: Accessing memory after this point will result in a segfault
-    /// unless it is first unprotected.
-    pub unsafe fn start_ffi(&mut self) -> Result<(), nix::errno::Errno> {
-        let prot = mman::ProtFlags::PROT_NONE;
-        unsafe { self.mprotect(prot) }
-    }
-
-    /// Deprotects all owned memory by setting it to RW. Erroring here is very
-    /// likely unrecoverable, so it may panic if applying those permissions
-    /// fails.
-    pub fn end_ffi(&mut self) {
-        let prot = mman::ProtFlags::PROT_READ | mman::ProtFlags::PROT_WRITE;
-        unsafe {
-            self.mprotect(prot).unwrap();
-        }
-    }
-
-    /// Applies `prot` to every page managed by the allocator.
-    ///
-    /// SAFETY: Accessing memory in violation of the protection flags will
-    /// trigger a segfault.
-    unsafe fn mprotect(&mut self, prot: mman::ProtFlags) -> Result<(), nix::errno::Errno> {
-        for &pg in &self.page_ptrs {
-            unsafe {
-                mman::mprotect(pg.cast(), self.page_size, prot)?;
-            }
-        }
-        for &(hpg, size) in &self.huge_ptrs {
-            unsafe {
-                mman::mprotect(hpg.cast(), size.next_multiple_of(self.page_size), prot)?;
-            }
-        }
-        Ok(())
+    /// Returns a list of page ranges managed by the allocator, given in terms of pointers
+    /// and size (in bytes).
+    pub fn pages(&self) -> impl Iterator<Item = (NonNull<u8>, usize)> {
+        let pages = self.page_ptrs.iter().map(|&p| (p, self.page_size));
+        pages.chain(self.huge_ptrs.iter().copied())
     }
 }
 
diff --git a/src/tools/miri/src/alloc/mod.rs b/src/tools/miri/src/alloc/mod.rs
index 3be885920d2..35158f50a8f 100644
--- a/src/tools/miri/src/alloc/mod.rs
+++ b/src/tools/miri/src/alloc/mod.rs
@@ -1,5 +1,31 @@
 mod alloc_bytes;
-#[cfg(target_os = "linux")]
+#[cfg(all(unix, feature = "native-lib"))]
 pub mod isolated_alloc;
+#[cfg(not(all(unix, feature = "native-lib")))]
+pub mod isolated_alloc {
+    use std::alloc::Layout;
+
+    /// Stub allocator to avoid `cfg`s in the rest of Miri.
+    #[derive(Debug)]
+    pub struct IsolatedAlloc(!);
+
+    impl IsolatedAlloc {
+        pub fn new() -> Self {
+            unreachable!()
+        }
+
+        pub unsafe fn alloc(&mut self, _layout: Layout) -> *mut u8 {
+            match self.0 {}
+        }
+
+        pub unsafe fn alloc_zeroed(&mut self, _layout: Layout) -> *mut u8 {
+            match self.0 {}
+        }
+
+        pub unsafe fn dealloc(&mut self, _ptr: *mut u8, _layout: Layout) {
+            match self.0 {}
+        }
+    }
+}
 
 pub use self::alloc_bytes::{MiriAllocBytes, MiriAllocParams};
diff --git a/src/tools/miri/src/alloc_addresses/mod.rs b/src/tools/miri/src/alloc_addresses/mod.rs
index 10339928ac2..334503d2994 100644
--- a/src/tools/miri/src/alloc_addresses/mod.rs
+++ b/src/tools/miri/src/alloc_addresses/mod.rs
@@ -116,14 +116,6 @@ trait EvalContextExtPriv<'tcx>: crate::MiriInterpCxExt<'tcx> {
         let this = self.eval_context_ref();
         let info = this.get_alloc_info(alloc_id);
 
-        // Miri's address assignment leaks state across thread boundaries, which is incompatible
-        // with GenMC execution. So we instead let GenMC assign addresses to allocations.
-        if let Some(genmc_ctx) = this.machine.data_race.as_genmc_ref() {
-            let addr = genmc_ctx.handle_alloc(&this.machine, info.size, info.align, memory_kind)?;
-            return interp_ok(addr);
-        }
-
-        let mut rng = this.machine.rng.borrow_mut();
         // This is either called immediately after allocation (and then cached), or when
         // adjusting `tcx` pointers (which never get freed). So assert that we are looking
         // at a live allocation. This also ensures that we never re-assign an address to an
@@ -131,6 +123,19 @@ trait EvalContextExtPriv<'tcx>: crate::MiriInterpCxExt<'tcx> {
         // information was removed.
         assert!(!matches!(info.kind, AllocKind::Dead));
 
+        // TypeId allocations always have a "base address" of 0 (i.e., the relative offset is the
+        // hash fragment and therefore equal to the actual integer value).
+        if matches!(info.kind, AllocKind::TypeId) {
+            return interp_ok(0);
+        }
+
+        // Miri's address assignment leaks state across thread boundaries, which is incompatible
+        // with GenMC execution. So we instead let GenMC assign addresses to allocations.
+        if let Some(genmc_ctx) = this.machine.data_race.as_genmc_ref() {
+            let addr = genmc_ctx.handle_alloc(&this.machine, info.size, info.align, memory_kind)?;
+            return interp_ok(addr);
+        }
+
         // This allocation does not have a base address yet, pick or reuse one.
         if !this.machine.native_lib.is_empty() {
             // In native lib mode, we use the "real" address of the bytes for this allocation.
@@ -157,7 +162,7 @@ trait EvalContextExtPriv<'tcx>: crate::MiriInterpCxExt<'tcx> {
                         this.get_alloc_bytes_unchecked_raw(alloc_id)?
                     }
                 }
-                AllocKind::Function | AllocKind::Virtual => {
+                AllocKind::Function | AllocKind::VTable => {
                     // Allocate some dummy memory to get a unique address for this function/vtable.
                     let alloc_bytes = MiriAllocBytes::from_bytes(
                         &[0u8; 1],
@@ -169,12 +174,13 @@ trait EvalContextExtPriv<'tcx>: crate::MiriInterpCxExt<'tcx> {
                     std::mem::forget(alloc_bytes);
                     ptr
                 }
-                AllocKind::Dead => unreachable!(),
+                AllocKind::TypeId | AllocKind::Dead => unreachable!(),
             };
             // We don't have to expose this pointer yet, we do that in `prepare_for_native_call`.
             return interp_ok(base_ptr.addr().to_u64());
         }
         // We are not in native lib mode, so we control the addresses ourselves.
+        let mut rng = this.machine.rng.borrow_mut();
         if let Some((reuse_addr, clock)) = global_state.reuse.take_addr(
             &mut *rng,
             info.size,
@@ -295,21 +301,25 @@ pub trait EvalContextExt<'tcx>: crate::MiriInterpCxExt<'tcx> {
                 // Store address in cache.
                 global_state.base_addr.try_insert(alloc_id, base_addr).unwrap();
 
-                // Also maintain the opposite mapping in `int_to_ptr_map`, ensuring we keep it sorted.
-                // We have a fast-path for the common case that this address is bigger than all previous ones.
-                let pos = if global_state
-                    .int_to_ptr_map
-                    .last()
-                    .is_some_and(|(last_addr, _)| *last_addr < base_addr)
-                {
-                    global_state.int_to_ptr_map.len()
-                } else {
-                    global_state
+                // Also maintain the opposite mapping in `int_to_ptr_map`, ensuring we keep it
+                // sorted. We have a fast-path for the common case that this address is bigger than
+                // all previous ones. We skip this for allocations at address 0; those can't be
+                // real, they must be TypeId "fake allocations".
+                if base_addr != 0 {
+                    let pos = if global_state
                         .int_to_ptr_map
-                        .binary_search_by_key(&base_addr, |(addr, _)| *addr)
-                        .unwrap_err()
-                };
-                global_state.int_to_ptr_map.insert(pos, (base_addr, alloc_id));
+                        .last()
+                        .is_some_and(|(last_addr, _)| *last_addr < base_addr)
+                    {
+                        global_state.int_to_ptr_map.len()
+                    } else {
+                        global_state
+                            .int_to_ptr_map
+                            .binary_search_by_key(&base_addr, |(addr, _)| *addr)
+                            .unwrap_err()
+                    };
+                    global_state.int_to_ptr_map.insert(pos, (base_addr, alloc_id));
+                }
 
                 interp_ok(base_addr)
             }
diff --git a/src/tools/miri/src/bin/miri.rs b/src/tools/miri/src/bin/miri.rs
index 61cebedf081..89fa980ff64 100644
--- a/src/tools/miri/src/bin/miri.rs
+++ b/src/tools/miri/src/bin/miri.rs
@@ -335,9 +335,10 @@ impl rustc_driver::Callbacks for MiriBeRustCompilerCalls {
 fn exit(exit_code: i32) -> ! {
     // Drop the tracing guard before exiting, so tracing calls are flushed correctly.
     deinit_loggers();
-    // Make sure the supervisor knows about the code code.
-    #[cfg(target_os = "linux")]
+    // Make sure the supervisor knows about the exit code.
+    #[cfg(all(unix, feature = "native-lib"))]
     miri::native_lib::register_retcode_sv(exit_code);
+    // Actually exit.
     std::process::exit(exit_code);
 }
 
@@ -561,6 +562,8 @@ fn main() {
             miri_config.force_intrinsic_fallback = true;
         } else if arg == "-Zmiri-deterministic-floats" {
             miri_config.float_nondet = false;
+        } else if arg == "-Zmiri-no-extra-rounding-error" {
+            miri_config.float_rounding_error = false;
         } else if arg == "-Zmiri-strict-provenance" {
             miri_config.provenance_mode = ProvenanceMode::Strict;
         } else if arg == "-Zmiri-permissive-provenance" {
@@ -754,7 +757,7 @@ fn main() {
     debug!("crate arguments: {:?}", miri_config.args);
     if !miri_config.native_lib.is_empty() && miri_config.native_lib_enable_tracing {
         // SAFETY: No other threads are running
-        #[cfg(target_os = "linux")]
+        #[cfg(all(unix, feature = "native-lib"))]
         if unsafe { miri::native_lib::init_sv() }.is_err() {
             eprintln!(
                 "warning: The native-lib tracer could not be started. Is this an x86 Linux system, and does Miri have permissions to ptrace?\n\
diff --git a/src/tools/miri/src/borrow_tracker/stacked_borrows/mod.rs b/src/tools/miri/src/borrow_tracker/stacked_borrows/mod.rs
index e834fdffdd1..2977efaae04 100644
--- a/src/tools/miri/src/borrow_tracker/stacked_borrows/mod.rs
+++ b/src/tools/miri/src/borrow_tracker/stacked_borrows/mod.rs
@@ -650,7 +650,7 @@ trait EvalContextPrivExt<'tcx, 'ecx>: crate::MiriInterpCxExt<'tcx> {
                         dcx.log_protector();
                     }
                 },
-                AllocKind::Function | AllocKind::Virtual | AllocKind::Dead => {
+                AllocKind::Function | AllocKind::VTable | AllocKind::TypeId | AllocKind::Dead => {
                     // No stacked borrows on these allocations.
                 }
             }
@@ -1021,7 +1021,7 @@ pub trait EvalContextExt<'tcx>: crate::MiriInterpCxExt<'tcx> {
                 trace!("Stacked Borrows tag {tag:?} exposed in {alloc_id:?}");
                 alloc_extra.borrow_tracker_sb().borrow_mut().exposed_tags.insert(tag);
             }
-            AllocKind::Function | AllocKind::Virtual | AllocKind::Dead => {
+            AllocKind::Function | AllocKind::VTable | AllocKind::TypeId | AllocKind::Dead => {
                 // No stacked borrows on these allocations.
             }
         }
diff --git a/src/tools/miri/src/borrow_tracker/tree_borrows/mod.rs b/src/tools/miri/src/borrow_tracker/tree_borrows/mod.rs
index aa92f8a8c30..ad2a67160f4 100644
--- a/src/tools/miri/src/borrow_tracker/tree_borrows/mod.rs
+++ b/src/tools/miri/src/borrow_tracker/tree_borrows/mod.rs
@@ -673,7 +673,7 @@ pub trait EvalContextExt<'tcx>: crate::MiriInterpCxExt<'tcx> {
                 trace!("Tree Borrows tag {tag:?} exposed in {alloc_id:?}");
                 alloc_extra.borrow_tracker_tb().borrow_mut().expose_tag(tag);
             }
-            AllocKind::Function | AllocKind::Virtual | AllocKind::Dead => {
+            AllocKind::Function | AllocKind::VTable | AllocKind::TypeId | AllocKind::Dead => {
                 // No tree borrows on these allocations.
             }
         }
diff --git a/src/tools/miri/src/diagnostics.rs b/src/tools/miri/src/diagnostics.rs
index 9ecbd31c5b9..8fdf8d643ea 100644
--- a/src/tools/miri/src/diagnostics.rs
+++ b/src/tools/miri/src/diagnostics.rs
@@ -382,7 +382,7 @@ pub fn report_error<'tcx>(
                             helps.push(note_span!(span, "{:?} was deallocated here:", alloc_id));
                         }
                     }
-                    AbiMismatchArgument { .. } | AbiMismatchReturn { .. } => {
+                    AbiMismatchArgument { .. } => {
                         helps.push(note!("this means these two types are not *guaranteed* to be ABI-compatible across all targets"));
                         helps.push(note!("if you think this code should be accepted anyway, please report an issue with Miri"));
                     }
diff --git a/src/tools/miri/src/eval.rs b/src/tools/miri/src/eval.rs
index be6404f64e8..3c80e60b772 100644
--- a/src/tools/miri/src/eval.rs
+++ b/src/tools/miri/src/eval.rs
@@ -170,6 +170,8 @@ pub struct MiriConfig {
     pub force_intrinsic_fallback: bool,
     /// Whether floating-point operations can behave non-deterministically.
     pub float_nondet: bool,
+    /// Whether floating-point operations can have a non-deterministic rounding error.
+    pub float_rounding_error: bool,
 }
 
 impl Default for MiriConfig {
@@ -211,6 +213,7 @@ impl Default for MiriConfig {
             fixed_scheduling: false,
             force_intrinsic_fallback: false,
             float_nondet: true,
+            float_rounding_error: true,
         }
     }
 }
diff --git a/src/tools/miri/src/helpers.rs b/src/tools/miri/src/helpers.rs
index ccfff7fa94b..15699828e00 100644
--- a/src/tools/miri/src/helpers.rs
+++ b/src/tools/miri/src/helpers.rs
@@ -1079,6 +1079,7 @@ pub trait EvalContextExt<'tcx>: crate::MiriInterpCxExt<'tcx> {
             .position(|b| !b)
         {
             throw_ub!(AbiMismatchArgument {
+                arg_idx: index,
                 caller_ty: caller_fn_abi.args[index].layout.ty,
                 callee_ty: callee_fn_abi.args[index].layout.ty
             });
diff --git a/src/tools/miri/src/lib.rs b/src/tools/miri/src/lib.rs
index a591d21071d..ae70257653c 100644
--- a/src/tools/miri/src/lib.rs
+++ b/src/tools/miri/src/lib.rs
@@ -1,3 +1,4 @@
+#![feature(abort_unwind)]
 #![feature(cfg_select)]
 #![feature(rustc_private)]
 #![feature(float_gamma)]
@@ -97,7 +98,7 @@ pub use rustc_const_eval::interpret::{self, AllocMap, Provenance as _};
 use rustc_middle::{bug, span_bug};
 use tracing::{info, trace};
 
-#[cfg(target_os = "linux")]
+#[cfg(all(unix, feature = "native-lib"))]
 pub mod native_lib {
     pub use crate::shims::{init_sv, register_retcode_sv};
 }
diff --git a/src/tools/miri/src/machine.rs b/src/tools/miri/src/machine.rs
index f309e34c75b..7271d3f619c 100644
--- a/src/tools/miri/src/machine.rs
+++ b/src/tools/miri/src/machine.rs
@@ -4,7 +4,6 @@
 use std::any::Any;
 use std::borrow::Cow;
 use std::cell::{Cell, RefCell};
-use std::collections::hash_map::Entry;
 use std::path::Path;
 use std::rc::Rc;
 use std::{fmt, process};
@@ -70,12 +69,6 @@ pub struct FrameExtra<'tcx> {
     /// This is used by `MiriMachine::current_span` and `MiriMachine::caller_span`
     pub is_user_relevant: bool,
 
-    /// We have a cache for the mapping from [`mir::Const`] to resulting [`AllocId`].
-    /// However, we don't want all frames to always get the same result, so we insert
-    /// an additional bit of "salt" into the cache key. This salt is fixed per-frame
-    /// so that within a call, a const will have a stable address.
-    salt: usize,
-
     /// Data race detector per-frame data.
     pub data_race: Option<data_race::FrameState>,
 }
@@ -88,14 +81,12 @@ impl<'tcx> std::fmt::Debug for FrameExtra<'tcx> {
             catch_unwind,
             timing: _,
             is_user_relevant,
-            salt,
             data_race,
         } = self;
         f.debug_struct("FrameData")
             .field("borrow_tracker", borrow_tracker)
             .field("catch_unwind", catch_unwind)
             .field("is_user_relevant", is_user_relevant)
-            .field("salt", salt)
             .field("data_race", data_race)
             .finish()
     }
@@ -108,7 +99,6 @@ impl VisitProvenance for FrameExtra<'_> {
             borrow_tracker,
             timing: _,
             is_user_relevant: _,
-            salt: _,
             data_race: _,
         } = self;
 
@@ -530,7 +520,6 @@ pub struct MiriMachine<'tcx> {
     pub(crate) rng: RefCell<StdRng>,
 
     /// The allocator used for the machine's `AllocBytes` in native-libs mode.
-    #[cfg(target_os = "linux")]
     pub(crate) allocator: Option<Rc<RefCell<crate::alloc::isolated_alloc::IsolatedAlloc>>>,
 
     /// The allocation IDs to report when they are being allocated
@@ -554,9 +543,9 @@ pub struct MiriMachine<'tcx> {
     pub(crate) basic_block_count: u64,
 
     /// Handle of the optional shared object file for native functions.
-    #[cfg(unix)]
+    #[cfg(all(unix, feature = "native-lib"))]
     pub native_lib: Vec<(libloading::Library, std::path::PathBuf)>,
-    #[cfg(not(unix))]
+    #[cfg(not(all(unix, feature = "native-lib")))]
     pub native_lib: Vec<!>,
 
     /// Run a garbage collector for BorTags every N basic blocks.
@@ -579,11 +568,6 @@ pub struct MiriMachine<'tcx> {
     /// diagnostics.
     pub(crate) allocation_spans: RefCell<FxHashMap<AllocId, (Span, Option<Span>)>>,
 
-    /// Maps MIR consts to their evaluated result. We combine the const with a "salt" (`usize`)
-    /// that is fixed per stack frame; this lets us have sometimes different results for the
-    /// same const while ensuring consistent results within a single call.
-    const_cache: RefCell<FxHashMap<(mir::Const<'tcx>, usize), OpTy<'tcx>>>,
-
     /// For each allocation, an offset inside that allocation that was deemed aligned even for
     /// symbolic alignment checks. This cannot be stored in `AllocExtra` since it needs to be
     /// tracked for vtables and function allocations as well as regular allocations.
@@ -603,7 +587,7 @@ pub struct MiriMachine<'tcx> {
     /// Remembers whether we already warned about an extern type with Stacked Borrows.
     pub(crate) sb_extern_type_warned: Cell<bool>,
     /// Remember whether we already warned about sharing memory with a native call.
-    #[cfg(unix)]
+    #[allow(unused)]
     pub(crate) native_call_mem_warned: Cell<bool>,
     /// Remembers which shims have already shown the warning about erroring in isolation.
     pub(crate) reject_in_isolation_warned: RefCell<FxHashSet<String>>,
@@ -618,6 +602,8 @@ pub struct MiriMachine<'tcx> {
 
     /// Whether floating-point operations can behave non-deterministically.
     pub float_nondet: bool,
+    /// Whether floating-point operations can have a non-deterministic rounding error.
+    pub float_rounding_error: bool,
 }
 
 impl<'tcx> MiriMachine<'tcx> {
@@ -718,7 +704,6 @@ impl<'tcx> MiriMachine<'tcx> {
             local_crates,
             extern_statics: FxHashMap::default(),
             rng: RefCell::new(rng),
-            #[cfg(target_os = "linux")]
             allocator: if !config.native_lib.is_empty() {
                 Some(Rc::new(RefCell::new(crate::alloc::isolated_alloc::IsolatedAlloc::new())))
             } else { None },
@@ -730,7 +715,7 @@ impl<'tcx> MiriMachine<'tcx> {
             report_progress: config.report_progress,
             basic_block_count: 0,
             monotonic_clock: MonotonicClock::new(config.isolated_op == IsolatedOp::Allow),
-            #[cfg(unix)]
+            #[cfg(all(unix, feature = "native-lib"))]
             native_lib: config.native_lib.iter().map(|lib_file_path| {
                 let host_triple = rustc_session::config::host_tuple();
                 let target_triple = tcx.sess.opts.target_triple.tuple();
@@ -752,9 +737,9 @@ impl<'tcx> MiriMachine<'tcx> {
                     lib_file_path.clone(),
                 )
             }).collect(),
-            #[cfg(not(unix))]
+            #[cfg(not(all(unix, feature = "native-lib")))]
             native_lib: config.native_lib.iter().map(|_| {
-                panic!("calling functions from native libraries via FFI is only supported on Unix")
+                panic!("calling functions from native libraries via FFI is not supported in this build of Miri")
             }).collect(),
             gc_interval: config.gc_interval,
             since_gc: 0,
@@ -764,20 +749,19 @@ impl<'tcx> MiriMachine<'tcx> {
             stack_size,
             collect_leak_backtraces: config.collect_leak_backtraces,
             allocation_spans: RefCell::new(FxHashMap::default()),
-            const_cache: RefCell::new(FxHashMap::default()),
             symbolic_alignment: RefCell::new(FxHashMap::default()),
             union_data_ranges: FxHashMap::default(),
             pthread_mutex_sanity: Cell::new(false),
             pthread_rwlock_sanity: Cell::new(false),
             pthread_condvar_sanity: Cell::new(false),
             sb_extern_type_warned: Cell::new(false),
-            #[cfg(unix)]
             native_call_mem_warned: Cell::new(false),
             reject_in_isolation_warned: Default::default(),
             int2ptr_warned: Default::default(),
             mangle_internal_symbol_cache: Default::default(),
             force_intrinsic_fallback: config.force_intrinsic_fallback,
             float_nondet: config.float_nondet,
+            float_rounding_error: config.float_rounding_error,
         }
     }
 
@@ -924,7 +908,6 @@ impl VisitProvenance for MiriMachine<'_> {
             backtrace_style: _,
             local_crates: _,
             rng: _,
-            #[cfg(target_os = "linux")]
             allocator: _,
             tracked_alloc_ids: _,
             track_alloc_accesses: _,
@@ -942,20 +925,19 @@ impl VisitProvenance for MiriMachine<'_> {
             stack_size: _,
             collect_leak_backtraces: _,
             allocation_spans: _,
-            const_cache: _,
             symbolic_alignment: _,
             union_data_ranges: _,
             pthread_mutex_sanity: _,
             pthread_rwlock_sanity: _,
             pthread_condvar_sanity: _,
             sb_extern_type_warned: _,
-            #[cfg(unix)]
             native_call_mem_warned: _,
             reject_in_isolation_warned: _,
             int2ptr_warned: _,
             mangle_internal_symbol_cache: _,
             force_intrinsic_fallback: _,
             float_nondet: _,
+            float_rounding_error: _,
         } = self;
 
         threads.visit_provenance(visit);
@@ -1579,7 +1561,6 @@ impl<'tcx> Machine<'tcx> for MiriMachine<'tcx> {
             catch_unwind: None,
             timing,
             is_user_relevant: ecx.machine.is_user_relevant(&frame),
-            salt: ecx.machine.rng.borrow_mut().random_range(0..ADDRS_PER_ANON_GLOBAL),
             data_race: ecx
                 .machine
                 .data_race
@@ -1738,33 +1719,6 @@ impl<'tcx> Machine<'tcx> for MiriMachine<'tcx> {
         interp_ok(())
     }
 
-    fn eval_mir_constant<F>(
-        ecx: &InterpCx<'tcx, Self>,
-        val: mir::Const<'tcx>,
-        span: Span,
-        layout: Option<TyAndLayout<'tcx>>,
-        eval: F,
-    ) -> InterpResult<'tcx, OpTy<'tcx>>
-    where
-        F: Fn(
-            &InterpCx<'tcx, Self>,
-            mir::Const<'tcx>,
-            Span,
-            Option<TyAndLayout<'tcx>>,
-        ) -> InterpResult<'tcx, OpTy<'tcx>>,
-    {
-        let frame = ecx.active_thread_stack().last().unwrap();
-        let mut cache = ecx.machine.const_cache.borrow_mut();
-        match cache.entry((val, frame.extra.salt)) {
-            Entry::Vacant(ve) => {
-                let op = eval(ecx, val, span, layout)?;
-                ve.insert(op.clone());
-                interp_ok(op)
-            }
-            Entry::Occupied(oe) => interp_ok(oe.get().clone()),
-        }
-    }
-
     fn get_global_alloc_salt(
         ecx: &InterpCx<'tcx, Self>,
         instance: Option<ty::Instance<'tcx>>,
@@ -1817,13 +1771,10 @@ impl<'tcx> Machine<'tcx> for MiriMachine<'tcx> {
     fn get_default_alloc_params(&self) -> <Self::Bytes as AllocBytes>::AllocParams {
         use crate::alloc::MiriAllocParams;
 
-        #[cfg(target_os = "linux")]
         match &self.allocator {
             Some(alloc) => MiriAllocParams::Isolated(alloc.clone()),
             None => MiriAllocParams::Global,
         }
-        #[cfg(not(target_os = "linux"))]
-        MiriAllocParams::Global
     }
 
     fn enter_trace_span(span: impl FnOnce() -> tracing::Span) -> impl EnteredTraceSpan {
diff --git a/src/tools/miri/src/math.rs b/src/tools/miri/src/math.rs
index cf16a5676d6..e9e5a1070c9 100644
--- a/src/tools/miri/src/math.rs
+++ b/src/tools/miri/src/math.rs
@@ -15,7 +15,7 @@ pub(crate) fn apply_random_float_error<F: rustc_apfloat::Float>(
     val: F,
     err_scale: i32,
 ) -> F {
-    if !ecx.machine.float_nondet {
+    if !ecx.machine.float_nondet || !ecx.machine.float_rounding_error {
         return val;
     }
 
diff --git a/src/tools/miri/src/shims/foreign_items.rs b/src/tools/miri/src/shims/foreign_items.rs
index 9ddba8c2b48..94cda57658a 100644
--- a/src/tools/miri/src/shims/foreign_items.rs
+++ b/src/tools/miri/src/shims/foreign_items.rs
@@ -237,7 +237,7 @@ trait EvalContextExtPriv<'tcx>: crate::MiriInterpCxExt<'tcx> {
         let this = self.eval_context_mut();
 
         // First deal with any external C functions in linked .so file.
-        #[cfg(unix)]
+        #[cfg(all(unix, feature = "native-lib"))]
         if !this.machine.native_lib.is_empty() {
             use crate::shims::native_lib::EvalContextExt as _;
             // An Ok(false) here means that the function being called was not exported
diff --git a/src/tools/miri/src/shims/mod.rs b/src/tools/miri/src/shims/mod.rs
index 75540f6f150..2a7709829ee 100644
--- a/src/tools/miri/src/shims/mod.rs
+++ b/src/tools/miri/src/shims/mod.rs
@@ -4,7 +4,7 @@ mod aarch64;
 mod alloc;
 mod backtrace;
 mod files;
-#[cfg(unix)]
+#[cfg(all(unix, feature = "native-lib"))]
 mod native_lib;
 mod unix;
 mod wasi;
@@ -23,7 +23,7 @@ pub mod tls;
 pub mod unwind;
 
 pub use self::files::FdTable;
-#[cfg(target_os = "linux")]
+#[cfg(all(unix, feature = "native-lib"))]
 pub use self::native_lib::trace::{init_sv, register_retcode_sv};
 pub use self::unix::{DirTable, EpollInterestTable};
 
diff --git a/src/tools/miri/src/shims/native_lib/mod.rs b/src/tools/miri/src/shims/native_lib/mod.rs
index fb7b1df41a4..2827ed997a7 100644
--- a/src/tools/miri/src/shims/native_lib/mod.rs
+++ b/src/tools/miri/src/shims/native_lib/mod.rs
@@ -8,6 +8,7 @@ use rustc_abi::{BackendRepr, HasDataLayout, Size};
 use rustc_middle::mir::interpret::Pointer;
 use rustc_middle::ty::{self as ty, IntTy, UintTy};
 use rustc_span::Symbol;
+use serde::{Deserialize, Serialize};
 
 #[cfg_attr(
     not(all(
@@ -23,18 +24,14 @@ use crate::*;
 
 /// The final results of an FFI trace, containing every relevant event detected
 /// by the tracer.
-#[allow(dead_code)]
-#[cfg_attr(target_os = "linux", derive(serde::Serialize, serde::Deserialize))]
-#[derive(Debug)]
+#[derive(Serialize, Deserialize, Debug)]
 pub struct MemEvents {
     /// An list of memory accesses that occurred, in the order they occurred in.
     pub acc_events: Vec<AccessEvent>,
 }
 
 /// A single memory access.
-#[allow(dead_code)]
-#[cfg_attr(target_os = "linux", derive(serde::Serialize, serde::Deserialize))]
-#[derive(Clone, Debug)]
+#[derive(Serialize, Deserialize, Clone, Debug)]
 pub enum AccessEvent {
     /// A read occurred on this memory range.
     Read(AccessRange),
@@ -56,9 +53,7 @@ impl AccessEvent {
 }
 
 /// The memory touched by a given access.
-#[allow(dead_code)]
-#[cfg_attr(target_os = "linux", derive(serde::Serialize, serde::Deserialize))]
-#[derive(Clone, Debug)]
+#[derive(Serialize, Deserialize, Clone, Debug)]
 pub struct AccessRange {
     /// The base address in memory where an access occurred.
     pub addr: usize,
diff --git a/src/tools/miri/src/shims/native_lib/trace/child.rs b/src/tools/miri/src/shims/native_lib/trace/child.rs
index de26cb0fe55..b998ba822dd 100644
--- a/src/tools/miri/src/shims/native_lib/trace/child.rs
+++ b/src/tools/miri/src/shims/native_lib/trace/child.rs
@@ -1,8 +1,9 @@
 use std::cell::RefCell;
+use std::ptr::NonNull;
 use std::rc::Rc;
 
 use ipc_channel::ipc;
-use nix::sys::{ptrace, signal};
+use nix::sys::{mman, ptrace, signal};
 use nix::unistd;
 use rustc_const_eval::interpret::InterpResult;
 
@@ -44,6 +45,16 @@ impl Supervisor {
         SUPERVISOR.lock().unwrap().is_some()
     }
 
+    unsafe fn protect_pages(
+        pages: impl Iterator<Item = (NonNull<u8>, usize)>,
+        prot: mman::ProtFlags,
+    ) -> Result<(), nix::errno::Errno> {
+        for (pg, sz) in pages {
+            unsafe { mman::mprotect(pg.cast(), sz, prot)? };
+        }
+        Ok(())
+    }
+
     /// Performs an arbitrary FFI call, enabling tracing from the supervisor.
     /// As this locks the supervisor via a mutex, no other threads may enter FFI
     /// until this function returns.
@@ -60,47 +71,67 @@ impl Supervisor {
 
         // Get pointers to all the pages the supervisor must allow accesses in
         // and prepare the callback stack.
-        let page_ptrs = alloc.borrow().pages().collect();
+        let alloc = alloc.borrow();
+        let page_size = alloc.page_size();
+        let page_ptrs = alloc
+            .pages()
+            .flat_map(|(pg, sz)| {
+                // Convert (page, size) pair into list of pages.
+                let start = pg.expose_provenance().get();
+                (0..sz.strict_div(alloc.page_size()))
+                    .map(move |i| start.strict_add(i.strict_mul(page_size)))
+            })
+            .collect();
         let raw_stack_ptr: *mut [u8; CALLBACK_STACK_SIZE] =
             Box::leak(Box::new([0u8; CALLBACK_STACK_SIZE])).as_mut_ptr().cast();
         let stack_ptr = raw_stack_ptr.expose_provenance();
         let start_info = StartFfiInfo { page_ptrs, stack_ptr };
 
-        // SAFETY: We do not access machine memory past this point until the
-        // supervisor is ready to allow it.
-        unsafe {
-            if alloc.borrow_mut().start_ffi().is_err() {
-                // Don't mess up unwinding by maybe leaving the memory partly protected
-                alloc.borrow_mut().end_ffi();
-                panic!("Cannot protect memory for FFI call!");
+        // Unwinding might be messed up due to partly protected memory, so let's abort if something
+        // breaks inside here.
+        let res = std::panic::abort_unwind(|| {
+            // SAFETY: We do not access machine memory past this point until the
+            // supervisor is ready to allow it.
+            // FIXME: this is sketchy, as technically the memory is still in the Rust Abstract Machine,
+            // and the compiler would be allowed to reorder accesses below this block...
+            unsafe {
+                Self::protect_pages(alloc.pages(), mman::ProtFlags::PROT_NONE).unwrap();
             }
-        }
 
-        // Send over the info.
-        // NB: if we do not wait to receive a blank confirmation response, it is
-        // possible that the supervisor is alerted of the SIGSTOP *before* it has
-        // actually received the start_info, thus deadlocking! This way, we can
-        // enforce an ordering for these events.
-        sv.message_tx.send(TraceRequest::StartFfi(start_info)).unwrap();
-        sv.confirm_rx.recv().unwrap();
-        // We need to be stopped for the supervisor to be able to make certain
-        // modifications to our memory - simply waiting on the recv() doesn't
-        // count.
-        signal::raise(signal::SIGSTOP).unwrap();
-
-        let res = f();
-
-        // We can't use IPC channels here to signal that FFI mode has ended,
-        // since they might allocate memory which could get us stuck in a SIGTRAP
-        // with no easy way out! While this could be worked around, it is much
-        // simpler and more robust to simply use the signals which are left for
-        // arbitrary usage. Since this will block until we are continued by the
-        // supervisor, we can assume past this point that everything is back to
-        // normal.
-        signal::raise(signal::SIGUSR1).unwrap();
-
-        // This is safe! It just sets memory to normal expected permissions.
-        alloc.borrow_mut().end_ffi();
+            // Send over the info.
+            // NB: if we do not wait to receive a blank confirmation response, it is
+            // possible that the supervisor is alerted of the SIGSTOP *before* it has
+            // actually received the start_info, thus deadlocking! This way, we can
+            // enforce an ordering for these events.
+            sv.message_tx.send(TraceRequest::StartFfi(start_info)).unwrap();
+            sv.confirm_rx.recv().unwrap();
+            // We need to be stopped for the supervisor to be able to make certain
+            // modifications to our memory - simply waiting on the recv() doesn't
+            // count.
+            signal::raise(signal::SIGSTOP).unwrap();
+
+            let res = f();
+
+            // We can't use IPC channels here to signal that FFI mode has ended,
+            // since they might allocate memory which could get us stuck in a SIGTRAP
+            // with no easy way out! While this could be worked around, it is much
+            // simpler and more robust to simply use the signals which are left for
+            // arbitrary usage. Since this will block until we are continued by the
+            // supervisor, we can assume past this point that everything is back to
+            // normal.
+            signal::raise(signal::SIGUSR1).unwrap();
+
+            // SAFETY: We set memory back to normal, so this is safe.
+            unsafe {
+                Self::protect_pages(
+                    alloc.pages(),
+                    mman::ProtFlags::PROT_READ | mman::ProtFlags::PROT_WRITE,
+                )
+                .unwrap();
+            }
+
+            res
+        });
 
         // SAFETY: Caller upholds that this pointer was allocated as a box with
         // this type.
diff --git a/src/tools/miri/src/shims/native_lib/trace/messages.rs b/src/tools/miri/src/shims/native_lib/trace/messages.rs
index 1f9df556b57..bef6cc1b2f3 100644
--- a/src/tools/miri/src/shims/native_lib/trace/messages.rs
+++ b/src/tools/miri/src/shims/native_lib/trace/messages.rs
@@ -45,8 +45,7 @@ pub enum TraceRequest {
 /// Information needed to begin tracing.
 #[derive(serde::Serialize, serde::Deserialize, Debug, Clone)]
 pub struct StartFfiInfo {
-    /// A vector of page addresses. These should have been automatically obtained
-    /// with `IsolatedAlloc::pages` and prepared with `IsolatedAlloc::start_ffi`.
+    /// A vector of page addresses that store the miri heap which is accessible from C.
     pub page_ptrs: Vec<usize>,
     /// The address of an allocation that can serve as a temporary stack.
     /// This should be a leaked `Box<[u8; CALLBACK_STACK_SIZE]>` cast to an int.
diff --git a/src/tools/miri/test_dependencies/Cargo.lock b/src/tools/miri/tests/deps/Cargo.lock
index 276c518e74f..4b783ebdc4e 100644
--- a/src/tools/miri/test_dependencies/Cargo.lock
+++ b/src/tools/miri/tests/deps/Cargo.lock
@@ -13,15 +13,15 @@ dependencies = [
 
 [[package]]
 name = "adler2"
-version = "2.0.0"
+version = "2.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "512761e0bb2578dd7380c6baaa0f4ce03e84f95e960231d1dec8bf4d7d6e2627"
+checksum = "320119579fcad9c21884f5c4861d16174d0e06250625266f50fe6898340abefa"
 
 [[package]]
 name = "backtrace"
-version = "0.3.74"
+version = "0.3.75"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8d82cb332cdfaed17ae235a638438ac4d4839913cc2af585c3c6746e8f8bee1a"
+checksum = "6806a6321ec58106fea15becdad98371e28d92ccbc7c8f1b3b6dd724fe8f1002"
 dependencies = [
  "addr2line",
  "cfg-if",
@@ -29,20 +29,20 @@ dependencies = [
  "miniz_oxide",
  "object",
  "rustc-demangle",
- "windows-targets",
+ "windows-targets 0.52.6",
 ]
 
 [[package]]
 name = "bitflags"
-version = "2.9.0"
+version = "2.9.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5c8214115b7bf84099f1309324e63141d4c5d7cc26862f97a0a857dbefe165bd"
+checksum = "1b8e56985ec62d17e9c1001dc89c88ecd7dc08e47eba5ec7c29c7b5eeecde967"
 
 [[package]]
 name = "bumpalo"
-version = "3.17.0"
+version = "3.19.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1628fb46dfa0b37568d12e5edd512553eccf6a22a78e8bde00bb4aed84d5bdbf"
+checksum = "46c5e41b57b8bba42a04676d81cb89e9ee8e859a1a66f80a5a72e1cb76b34d43"
 
 [[package]]
 name = "bytes"
@@ -52,18 +52,18 @@ checksum = "d71b6127be86fdcfddb610f7182ac57211d4b18a3e9c82eb2d17662f2227ad6a"
 
 [[package]]
 name = "cfg-if"
-version = "1.0.0"
+version = "1.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
+checksum = "9555578bc9e57714c812a1f84e4fc5b4d21fcb063490c624de019f7464c91268"
 
 [[package]]
 name = "errno"
-version = "0.3.11"
+version = "0.3.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "976dd42dc7e85965fe702eb8164f21f450704bdde31faefd6471dba214cb594e"
+checksum = "778e2ac28f6c47af28e4907f13ffd1e1ddbd400980a9abd7c8df189bf578a5ad"
 dependencies = [
  "libc",
- "windows-sys 0.59.0",
+ "windows-sys 0.60.2",
 ]
 
 [[package]]
@@ -85,22 +85,22 @@ dependencies = [
 
 [[package]]
 name = "getrandom"
-version = "0.2.15"
+version = "0.2.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c4567c8db10ae91089c99af84c68c38da3ec2f087c3f82960bcdbf3656b6f4d7"
+checksum = "335ff9f135e4384c8150d6f27c6daed433577f86b4750418338c01a1a2528592"
 dependencies = [
  "cfg-if",
  "js-sys",
  "libc",
- "wasi 0.11.0+wasi-snapshot-preview1",
+ "wasi 0.11.1+wasi-snapshot-preview1",
  "wasm-bindgen",
 ]
 
 [[package]]
 name = "getrandom"
-version = "0.3.2"
+version = "0.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "73fea8450eea4bac3940448fb7ae50d91f034f941199fcd9d909a5a07aa455f0"
+checksum = "26145e563e54f2cadc477553f1ec5ee650b00862f0a58bcd12cbdc5f0ea2d2f4"
 dependencies = [
  "cfg-if",
  "libc",
@@ -116,9 +116,20 @@ checksum = "07e28edb80900c19c28f1072f2e8aeca7fa06b23cd4169cefe1af5aa3260783f"
 
 [[package]]
 name = "hermit-abi"
-version = "0.3.9"
+version = "0.5.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fc0fef456e4baa96da950455cd02c081ca953b141298e41db3fc7e36b1da849c"
+
+[[package]]
+name = "io-uring"
+version = "0.7.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d231dfb89cfffdbc30e7fc41579ed6066ad03abda9e567ccafae602b97ec5024"
+checksum = "b86e202f00093dcba4275d4636b93ef9dd75d025ae560d2521b45ea28ab49013"
+dependencies = [
+ "bitflags",
+ "cfg-if",
+ "libc",
+]
 
 [[package]]
 name = "js-sys"
@@ -132,15 +143,15 @@ dependencies = [
 
 [[package]]
 name = "libc"
-version = "0.2.171"
+version = "0.2.174"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c19937216e9d3aa9956d9bb8dfc0b0c8beb6058fc4f7a4dc4d850edf86a237d6"
+checksum = "1171693293099992e19cddea4e8b849964e9846f4acee11b3948bcc337be8776"
 
 [[package]]
 name = "linux-raw-sys"
-version = "0.9.3"
+version = "0.9.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fe7db12097d22ec582439daf8618b8fdd1a7bef6270e9af3b1ebcd30893cf413"
+checksum = "cd945864f07fe9f5371a27ad7b52a172b4b499999f1d97574c9fa68373937e12"
 
 [[package]]
 name = "log"
@@ -150,28 +161,28 @@ checksum = "13dc2df351e3202783a1fe0d44375f7295ffb4049267b0f3018346dc122a1d94"
 
 [[package]]
 name = "memchr"
-version = "2.7.4"
+version = "2.7.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "78ca9ab1a0babb1e7d5695e3530886289c18cf2f87ec19a575a0abdce112e3a3"
+checksum = "32a282da65faaf38286cf3be983213fcf1d2e2a58700e808f83f4ea9a4804bc0"
 
 [[package]]
 name = "miniz_oxide"
-version = "0.8.8"
+version = "0.8.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3be647b768db090acb35d5ec5db2b0e1f1de11133ca123b9eacf5137868f892a"
+checksum = "1fa76a2c86f704bdb222d66965fb3d63269ce38518b83cb0575fca855ebb6316"
 dependencies = [
  "adler2",
 ]
 
 [[package]]
 name = "mio"
-version = "1.0.3"
+version = "1.0.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2886843bf800fba2e3377cff24abf6379b4c4d5c6681eaf9ea5b0d15090450bd"
+checksum = "78bed444cc8a2160f01cbcf811ef18cac863ad68ae8ca62092e8db51d51c761c"
 dependencies = [
  "libc",
- "wasi 0.11.0+wasi-snapshot-preview1",
- "windows-sys 0.52.0",
+ "wasi 0.11.1+wasi-snapshot-preview1",
+ "windows-sys 0.59.0",
 ]
 
 [[package]]
@@ -180,21 +191,21 @@ version = "0.1.0"
 dependencies = [
  "cfg-if",
  "getrandom 0.1.16",
- "getrandom 0.2.15",
- "getrandom 0.3.2",
+ "getrandom 0.2.16",
+ "getrandom 0.3.3",
  "libc",
  "num_cpus",
  "page_size",
  "tempfile",
  "tokio",
- "windows-sys 0.59.0",
+ "windows-sys 0.60.2",
 ]
 
 [[package]]
 name = "num_cpus"
-version = "1.16.0"
+version = "1.17.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4161fcb6d602d4d2081af7c3a45852d875a03dd337a6bfdd6e06407b61342a43"
+checksum = "91df4bbde75afed763b708b7eee1e8e7651e02d97f6d5dd763e89367e957b23b"
 dependencies = [
  "hermit-abi",
  "libc",
@@ -233,9 +244,9 @@ checksum = "3b3cff922bd51709b605d9ead9aa71031d81447142d828eb4a6eba76fe619f9b"
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.94"
+version = "1.0.95"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a31971752e70b8b2686d7e46ec17fb38dad4051d94024c88df49b667caea9c84"
+checksum = "02b3e5e68a3a1a02aad3ec490a98007cbc13c37cbe84a3cd7b8e406d76e7f778"
 dependencies = [
  "unicode-ident",
 ]
@@ -251,43 +262,49 @@ dependencies = [
 
 [[package]]
 name = "r-efi"
-version = "5.2.0"
+version = "5.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "74765f6d916ee2faa39bc8e68e4f3ed8949b48cccdac59983d287a7cb71ce9c5"
+checksum = "69cdb34c158ceb288df11e18b4bd39de994f6657d83847bdffdbd7f346754b0f"
 
 [[package]]
 name = "rustc-demangle"
-version = "0.1.24"
+version = "0.1.25"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "719b953e2095829ee67db738b3bfa9fa368c94900df327b3f07fe6e794d2fe1f"
+checksum = "989e6739f80c4ad5b13e0fd7fe89531180375b18520cc8c82080e4dc4035b84f"
 
 [[package]]
 name = "rustix"
-version = "1.0.5"
+version = "1.0.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d97817398dd4bb2e6da002002db259209759911da105da92bec29ccb12cf58bf"
+checksum = "11181fbabf243db407ef8df94a6ce0b2f9a733bd8be4ad02b4eda9602296cac8"
 dependencies = [
  "bitflags",
  "errno",
  "libc",
  "linux-raw-sys",
- "windows-sys 0.59.0",
+ "windows-sys 0.60.2",
 ]
 
 [[package]]
 name = "signal-hook-registry"
-version = "1.4.2"
+version = "1.4.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a9e9e0b4211b72e7b8b6e85c807d36c212bdb33ea8587f7569562a84df5465b1"
+checksum = "9203b8055f63a2a00e2f593bb0510367fe707d7ff1e5c872de2f537b339e5410"
 dependencies = [
  "libc",
 ]
 
 [[package]]
+name = "slab"
+version = "0.4.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "04dc19736151f35336d325007ac991178d504a119863a2fcb3758cdb5e52c50d"
+
+[[package]]
 name = "socket2"
-version = "0.5.9"
+version = "0.5.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4f5fd57c80058a56cf5c777ab8a126398ece8e442983605d280a44ce79d0edef"
+checksum = "e22376abed350d73dd1cd119b57ffccad95b4e585a7cda43e286245ce23c0678"
 dependencies = [
  "libc",
  "windows-sys 0.52.0",
@@ -295,9 +312,9 @@ dependencies = [
 
 [[package]]
 name = "syn"
-version = "2.0.100"
+version = "2.0.104"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b09a44accad81e1ba1cd74a32461ba89dee89095ba17b32f5d03683b1b1fc2a0"
+checksum = "17b6f705963418cdb9927482fa304bc562ece2fdd4f616084c50b7023b435a40"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -306,12 +323,12 @@ dependencies = [
 
 [[package]]
 name = "tempfile"
-version = "3.19.1"
+version = "3.20.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7437ac7763b9b123ccf33c338a5cc1bac6f69b45a136c19bdd8a65e3916435bf"
+checksum = "e8a64e3985349f2441a1a9ef0b853f869006c3855f2cda6862a94d26ebb9d6a1"
 dependencies = [
  "fastrand",
- "getrandom 0.3.2",
+ "getrandom 0.3.3",
  "once_cell",
  "rustix",
  "windows-sys 0.59.0",
@@ -319,16 +336,18 @@ dependencies = [
 
 [[package]]
 name = "tokio"
-version = "1.44.2"
+version = "1.46.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e6b88822cbe49de4185e3a4cbf8321dd487cf5fe0c5c65695fef6346371e9c48"
+checksum = "0cc3a2344dafbe23a245241fe8b09735b521110d30fcefbbd5feb1797ca35d17"
 dependencies = [
  "backtrace",
  "bytes",
+ "io-uring",
  "libc",
  "mio",
  "pin-project-lite",
  "signal-hook-registry",
+ "slab",
  "socket2",
  "tokio-macros",
  "windows-sys 0.52.0",
@@ -359,9 +378,9 @@ checksum = "cccddf32554fecc6acb585f82a32a72e28b48f8c4c1883ddfeeeaa96f7d8e519"
 
 [[package]]
 name = "wasi"
-version = "0.11.0+wasi-snapshot-preview1"
+version = "0.11.1+wasi-snapshot-preview1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9c8d87e72b64a3b4db28d11ce29237c246188f4f51057d65a7eab63b7987e423"
+checksum = "ccf3ec651a847eb01de73ccad15eb7d99f80485de043efb2f370cd654f4ea44b"
 
 [[package]]
 name = "wasi"
@@ -457,7 +476,7 @@ version = "0.52.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "282be5f36a8ce781fad8c8ae18fa3f9beff57ec1b52cb3de0789201425d9a33d"
 dependencies = [
- "windows-targets",
+ "windows-targets 0.52.6",
 ]
 
 [[package]]
@@ -466,7 +485,16 @@ version = "0.59.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1e38bc4d79ed67fd075bcc251a1c39b32a1776bbe92e5bef1f0bf1f8c531853b"
 dependencies = [
- "windows-targets",
+ "windows-targets 0.52.6",
+]
+
+[[package]]
+name = "windows-sys"
+version = "0.60.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f2f500e4d28234f72040990ec9d39e3a6b950f9f22d3dba18416c35882612bcb"
+dependencies = [
+ "windows-targets 0.53.2",
 ]
 
 [[package]]
@@ -475,14 +503,30 @@ version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9b724f72796e036ab90c1021d4780d4d3d648aca59e491e6b98e725b84e99973"
 dependencies = [
- "windows_aarch64_gnullvm",
- "windows_aarch64_msvc",
- "windows_i686_gnu",
- "windows_i686_gnullvm",
- "windows_i686_msvc",
- "windows_x86_64_gnu",
- "windows_x86_64_gnullvm",
- "windows_x86_64_msvc",
+ "windows_aarch64_gnullvm 0.52.6",
+ "windows_aarch64_msvc 0.52.6",
+ "windows_i686_gnu 0.52.6",
+ "windows_i686_gnullvm 0.52.6",
+ "windows_i686_msvc 0.52.6",
+ "windows_x86_64_gnu 0.52.6",
+ "windows_x86_64_gnullvm 0.52.6",
+ "windows_x86_64_msvc 0.52.6",
+]
+
+[[package]]
+name = "windows-targets"
+version = "0.53.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c66f69fcc9ce11da9966ddb31a40968cad001c5bedeb5c2b82ede4253ab48aef"
+dependencies = [
+ "windows_aarch64_gnullvm 0.53.0",
+ "windows_aarch64_msvc 0.53.0",
+ "windows_i686_gnu 0.53.0",
+ "windows_i686_gnullvm 0.53.0",
+ "windows_i686_msvc 0.53.0",
+ "windows_x86_64_gnu 0.53.0",
+ "windows_x86_64_gnullvm 0.53.0",
+ "windows_x86_64_msvc 0.53.0",
 ]
 
 [[package]]
@@ -492,48 +536,96 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "32a4622180e7a0ec044bb555404c800bc9fd9ec262ec147edd5989ccd0c02cd3"
 
 [[package]]
+name = "windows_aarch64_gnullvm"
+version = "0.53.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "86b8d5f90ddd19cb4a147a5fa63ca848db3df085e25fee3cc10b39b6eebae764"
+
+[[package]]
 name = "windows_aarch64_msvc"
 version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "09ec2a7bb152e2252b53fa7803150007879548bc709c039df7627cabbd05d469"
 
 [[package]]
+name = "windows_aarch64_msvc"
+version = "0.53.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c7651a1f62a11b8cbd5e0d42526e55f2c99886c77e007179efff86c2b137e66c"
+
+[[package]]
 name = "windows_i686_gnu"
 version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8e9b5ad5ab802e97eb8e295ac6720e509ee4c243f69d781394014ebfe8bbfa0b"
 
 [[package]]
+name = "windows_i686_gnu"
+version = "0.53.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c1dc67659d35f387f5f6c479dc4e28f1d4bb90ddd1a5d3da2e5d97b42d6272c3"
+
+[[package]]
 name = "windows_i686_gnullvm"
 version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0eee52d38c090b3caa76c563b86c3a4bd71ef1a819287c19d586d7334ae8ed66"
 
 [[package]]
+name = "windows_i686_gnullvm"
+version = "0.53.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9ce6ccbdedbf6d6354471319e781c0dfef054c81fbc7cf83f338a4296c0cae11"
+
+[[package]]
 name = "windows_i686_msvc"
 version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "240948bc05c5e7c6dabba28bf89d89ffce3e303022809e73deaefe4f6ec56c66"
 
 [[package]]
+name = "windows_i686_msvc"
+version = "0.53.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "581fee95406bb13382d2f65cd4a908ca7b1e4c2f1917f143ba16efe98a589b5d"
+
+[[package]]
 name = "windows_x86_64_gnu"
 version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "147a5c80aabfbf0c7d901cb5895d1de30ef2907eb21fbbab29ca94c5b08b1a78"
 
 [[package]]
+name = "windows_x86_64_gnu"
+version = "0.53.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2e55b5ac9ea33f2fc1716d1742db15574fd6fc8dadc51caab1c16a3d3b4190ba"
+
+[[package]]
 name = "windows_x86_64_gnullvm"
 version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "24d5b23dc417412679681396f2b49f3de8c1473deb516bd34410872eff51ed0d"
 
 [[package]]
+name = "windows_x86_64_gnullvm"
+version = "0.53.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0a6e035dd0599267ce1ee132e51c27dd29437f63325753051e71dd9e42406c57"
+
+[[package]]
 name = "windows_x86_64_msvc"
 version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "589f6da84c646204747d1270a2a5661ea66ed1cced2631d546fdfb155959f9ec"
 
 [[package]]
+name = "windows_x86_64_msvc"
+version = "0.53.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "271414315aff87387382ec3d271b52d7ae78726f5d44ac98b4f4030c91880486"
+
+[[package]]
 name = "wit-bindgen-rt"
 version = "0.39.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
diff --git a/src/tools/miri/test_dependencies/Cargo.toml b/src/tools/miri/tests/deps/Cargo.toml
index 35555723f5d..d85723f0915 100644
--- a/src/tools/miri/test_dependencies/Cargo.toml
+++ b/src/tools/miri/tests/deps/Cargo.toml
@@ -25,7 +25,7 @@ page_size = "0.6"
 tokio = { version = "1", features = ["macros", "rt-multi-thread", "time", "net", "fs", "sync", "signal", "io-util"] }
 
 [target.'cfg(windows)'.dependencies]
-windows-sys = { version = "0.59", features = [
+windows-sys = { version = "0.60", features = [
     "Win32_Foundation",
     "Win32_System_Threading",
     "Win32_Storage_FileSystem",
diff --git a/src/tools/miri/test_dependencies/src/main.rs b/src/tools/miri/tests/deps/src/main.rs
index f328e4d9d04..f328e4d9d04 100644
--- a/src/tools/miri/test_dependencies/src/main.rs
+++ b/src/tools/miri/tests/deps/src/main.rs
diff --git a/src/tools/miri/tests/fail/function_pointers/abi_mismatch_array_vs_struct.rs b/src/tools/miri/tests/fail/function_pointers/abi_mismatch_array_vs_struct.rs
index 4468eb299f3..26f2e73dd75 100644
--- a/src/tools/miri/tests/fail/function_pointers/abi_mismatch_array_vs_struct.rs
+++ b/src/tools/miri/tests/fail/function_pointers/abi_mismatch_array_vs_struct.rs
@@ -17,5 +17,5 @@ fn main() {
     // These two types have the same size but are still not compatible.
     let g = unsafe { std::mem::transmute::<fn(S), fn(A)>(f) };
 
-    g(Default::default()) //~ ERROR: calling a function with argument of type S passing data of type [i32; 4]
+    g(Default::default()) //~ ERROR: type S passing argument of type [i32; 4]
 }
diff --git a/src/tools/miri/tests/fail/function_pointers/abi_mismatch_array_vs_struct.stderr b/src/tools/miri/tests/fail/function_pointers/abi_mismatch_array_vs_struct.stderr
index cabefa8bee9..f793abb0b62 100644
--- a/src/tools/miri/tests/fail/function_pointers/abi_mismatch_array_vs_struct.stderr
+++ b/src/tools/miri/tests/fail/function_pointers/abi_mismatch_array_vs_struct.stderr
@@ -1,4 +1,4 @@
-error: Undefined Behavior: calling a function with argument of type S passing data of type [i32; 4]
+error: Undefined Behavior: calling a function whose parameter #1 has type S passing argument of type [i32; 4]
   --> tests/fail/function_pointers/abi_mismatch_array_vs_struct.rs:LL:CC
    |
 LL |     g(Default::default())
diff --git a/src/tools/miri/tests/fail/function_pointers/abi_mismatch_int_vs_float.rs b/src/tools/miri/tests/fail/function_pointers/abi_mismatch_int_vs_float.rs
index a1fda329e8d..0cca4a13233 100644
--- a/src/tools/miri/tests/fail/function_pointers/abi_mismatch_int_vs_float.rs
+++ b/src/tools/miri/tests/fail/function_pointers/abi_mismatch_int_vs_float.rs
@@ -3,5 +3,5 @@ fn main() {
 
     let g = unsafe { std::mem::transmute::<fn(f32), fn(i32)>(f) };
 
-    g(42) //~ ERROR: calling a function with argument of type f32 passing data of type i32
+    g(42) //~ ERROR: type f32 passing argument of type i32
 }
diff --git a/src/tools/miri/tests/fail/function_pointers/abi_mismatch_int_vs_float.stderr b/src/tools/miri/tests/fail/function_pointers/abi_mismatch_int_vs_float.stderr
index 52cc48d58ce..3651fc9b3f7 100644
--- a/src/tools/miri/tests/fail/function_pointers/abi_mismatch_int_vs_float.stderr
+++ b/src/tools/miri/tests/fail/function_pointers/abi_mismatch_int_vs_float.stderr
@@ -1,4 +1,4 @@
-error: Undefined Behavior: calling a function with argument of type f32 passing data of type i32
+error: Undefined Behavior: calling a function whose parameter #1 has type f32 passing argument of type i32
   --> tests/fail/function_pointers/abi_mismatch_int_vs_float.rs:LL:CC
    |
 LL |     g(42)
diff --git a/src/tools/miri/tests/fail/function_pointers/abi_mismatch_raw_pointer.rs b/src/tools/miri/tests/fail/function_pointers/abi_mismatch_raw_pointer.rs
index f0ea5ccfe0f..053a4a5f284 100644
--- a/src/tools/miri/tests/fail/function_pointers/abi_mismatch_raw_pointer.rs
+++ b/src/tools/miri/tests/fail/function_pointers/abi_mismatch_raw_pointer.rs
@@ -3,5 +3,5 @@ fn main() {
 
     let g = unsafe { std::mem::transmute::<fn(*const [i32]), fn(*const i32)>(f) };
 
-    g(&42 as *const i32) //~ ERROR: calling a function with argument of type *const [i32] passing data of type *const i32
+    g(&42 as *const i32) //~ ERROR: type *const [i32] passing argument of type *const i32
 }
diff --git a/src/tools/miri/tests/fail/function_pointers/abi_mismatch_raw_pointer.stderr b/src/tools/miri/tests/fail/function_pointers/abi_mismatch_raw_pointer.stderr
index 2fbb0408c59..88345a0688c 100644
--- a/src/tools/miri/tests/fail/function_pointers/abi_mismatch_raw_pointer.stderr
+++ b/src/tools/miri/tests/fail/function_pointers/abi_mismatch_raw_pointer.stderr
@@ -1,4 +1,4 @@
-error: Undefined Behavior: calling a function with argument of type *const [i32] passing data of type *const i32
+error: Undefined Behavior: calling a function whose parameter #1 has type *const [i32] passing argument of type *const i32
   --> tests/fail/function_pointers/abi_mismatch_raw_pointer.rs:LL:CC
    |
 LL |     g(&42 as *const i32)
diff --git a/src/tools/miri/tests/fail/function_pointers/abi_mismatch_repr_C.rs b/src/tools/miri/tests/fail/function_pointers/abi_mismatch_repr_C.rs
index c5900489b4c..f3dffcc4e86 100644
--- a/src/tools/miri/tests/fail/function_pointers/abi_mismatch_repr_C.rs
+++ b/src/tools/miri/tests/fail/function_pointers/abi_mismatch_repr_C.rs
@@ -12,5 +12,5 @@ fn main() {
     let fnptr: fn(S2) = callee;
     let fnptr: fn(S1) = unsafe { std::mem::transmute(fnptr) };
     fnptr(S1(NonZero::new(1).unwrap()));
-    //~^ ERROR: calling a function with argument of type S2 passing data of type S1
+    //~^ ERROR: type S2 passing argument of type S1
 }
diff --git a/src/tools/miri/tests/fail/function_pointers/abi_mismatch_repr_C.stderr b/src/tools/miri/tests/fail/function_pointers/abi_mismatch_repr_C.stderr
index 2c1ac0ee702..47658395132 100644
--- a/src/tools/miri/tests/fail/function_pointers/abi_mismatch_repr_C.stderr
+++ b/src/tools/miri/tests/fail/function_pointers/abi_mismatch_repr_C.stderr
@@ -1,4 +1,4 @@
-error: Undefined Behavior: calling a function with argument of type S2 passing data of type S1
+error: Undefined Behavior: calling a function whose parameter #1 has type S2 passing argument of type S1
   --> tests/fail/function_pointers/abi_mismatch_repr_C.rs:LL:CC
    |
 LL |     fnptr(S1(NonZero::new(1).unwrap()));
diff --git a/src/tools/miri/tests/fail/function_pointers/abi_mismatch_return_type.rs b/src/tools/miri/tests/fail/function_pointers/abi_mismatch_return_type.rs
index 0fdab49b94b..05b645cf75a 100644
--- a/src/tools/miri/tests/fail/function_pointers/abi_mismatch_return_type.rs
+++ b/src/tools/miri/tests/fail/function_pointers/abi_mismatch_return_type.rs
@@ -5,5 +5,5 @@ fn main() {
 
     let g = unsafe { std::mem::transmute::<fn() -> u32, fn()>(f) };
 
-    g() //~ ERROR: calling a function with return type u32 passing return place of type ()
+    g() //~ ERROR: type u32 passing return place of type ()
 }
diff --git a/src/tools/miri/tests/fail/function_pointers/abi_mismatch_return_type.stderr b/src/tools/miri/tests/fail/function_pointers/abi_mismatch_return_type.stderr
index 28c676ad482..07e6561b53e 100644
--- a/src/tools/miri/tests/fail/function_pointers/abi_mismatch_return_type.stderr
+++ b/src/tools/miri/tests/fail/function_pointers/abi_mismatch_return_type.stderr
@@ -6,8 +6,6 @@ LL |     g()
    |
    = help: this indicates a bug in the program: it performed an invalid operation, and caused Undefined Behavior
    = help: see https://doc.rust-lang.org/nightly/reference/behavior-considered-undefined.html for further information
-   = help: this means these two types are not *guaranteed* to be ABI-compatible across all targets
-   = help: if you think this code should be accepted anyway, please report an issue with Miri
    = note: BACKTRACE:
    = note: inside `main` at tests/fail/function_pointers/abi_mismatch_return_type.rs:LL:CC
 
diff --git a/src/tools/miri/tests/fail/function_pointers/abi_mismatch_simple.rs b/src/tools/miri/tests/fail/function_pointers/abi_mismatch_simple.rs
index 20384f0965b..ca43c06008f 100644
--- a/src/tools/miri/tests/fail/function_pointers/abi_mismatch_simple.rs
+++ b/src/tools/miri/tests/fail/function_pointers/abi_mismatch_simple.rs
@@ -3,5 +3,5 @@ fn main() {
 
     let g = unsafe { std::mem::transmute::<fn((i32, i32)), fn(i32)>(f) };
 
-    g(42) //~ ERROR: calling a function with argument of type (i32, i32) passing data of type i32
+    g(42) //~ ERROR: type (i32, i32) passing argument of type i32
 }
diff --git a/src/tools/miri/tests/fail/function_pointers/abi_mismatch_simple.stderr b/src/tools/miri/tests/fail/function_pointers/abi_mismatch_simple.stderr
index e45ad12ec05..2ed9ac2e6da 100644
--- a/src/tools/miri/tests/fail/function_pointers/abi_mismatch_simple.stderr
+++ b/src/tools/miri/tests/fail/function_pointers/abi_mismatch_simple.stderr
@@ -1,4 +1,4 @@
-error: Undefined Behavior: calling a function with argument of type (i32, i32) passing data of type i32
+error: Undefined Behavior: calling a function whose parameter #1 has type (i32, i32) passing argument of type i32
   --> tests/fail/function_pointers/abi_mismatch_simple.rs:LL:CC
    |
 LL |     g(42)
diff --git a/src/tools/miri/tests/fail/function_pointers/abi_mismatch_vector.rs b/src/tools/miri/tests/fail/function_pointers/abi_mismatch_vector.rs
index 80f357b61ba..dedcaac6142 100644
--- a/src/tools/miri/tests/fail/function_pointers/abi_mismatch_vector.rs
+++ b/src/tools/miri/tests/fail/function_pointers/abi_mismatch_vector.rs
@@ -7,5 +7,5 @@ fn main() {
     // These two vector types have the same size but are still not compatible.
     let g = unsafe { std::mem::transmute::<fn(simd::u32x8), fn(simd::u64x4)>(f) };
 
-    g(Default::default()) //~ ERROR: calling a function with argument of type std::simd::Simd<u32, 8> passing data of type std::simd::Simd<u64, 4>
+    g(Default::default()) //~ ERROR: type std::simd::Simd<u32, 8> passing argument of type std::simd::Simd<u64, 4>
 }
diff --git a/src/tools/miri/tests/fail/function_pointers/abi_mismatch_vector.stderr b/src/tools/miri/tests/fail/function_pointers/abi_mismatch_vector.stderr
index bad2495cb39..b13e8d936db 100644
--- a/src/tools/miri/tests/fail/function_pointers/abi_mismatch_vector.stderr
+++ b/src/tools/miri/tests/fail/function_pointers/abi_mismatch_vector.stderr
@@ -1,4 +1,4 @@
-error: Undefined Behavior: calling a function with argument of type std::simd::Simd<u32, 8> passing data of type std::simd::Simd<u64, 4>
+error: Undefined Behavior: calling a function whose parameter #1 has type std::simd::Simd<u32, 8> passing argument of type std::simd::Simd<u64, 4>
   --> tests/fail/function_pointers/abi_mismatch_vector.rs:LL:CC
    |
 LL |     g(Default::default())
diff --git a/src/tools/miri/tests/fail/shims/input_arg_mismatch.rs b/src/tools/miri/tests/fail/shims/input_arg_mismatch.rs
index eb8de04dcc4..77699776aea 100644
--- a/src/tools/miri/tests/fail/shims/input_arg_mismatch.rs
+++ b/src/tools/miri/tests/fail/shims/input_arg_mismatch.rs
@@ -16,6 +16,6 @@ fn main() {
     } as u32;
     let _ = unsafe {
         close(fd);
-        //~^ ERROR: calling a function with argument of type i32 passing data of type u32
+        //~^ ERROR: type i32 passing argument of type u32
     };
 }
diff --git a/src/tools/miri/tests/fail/shims/input_arg_mismatch.stderr b/src/tools/miri/tests/fail/shims/input_arg_mismatch.stderr
index ce00b624a42..ec27fd5ebb8 100644
--- a/src/tools/miri/tests/fail/shims/input_arg_mismatch.stderr
+++ b/src/tools/miri/tests/fail/shims/input_arg_mismatch.stderr
@@ -1,4 +1,4 @@
-error: Undefined Behavior: calling a function with argument of type i32 passing data of type u32
+error: Undefined Behavior: calling a function whose parameter #1 has type i32 passing argument of type u32
   --> tests/fail/shims/input_arg_mismatch.rs:LL:CC
    |
 LL |         close(fd);
diff --git a/src/tools/miri/tests/fail/shims/return_type_mismatch.stderr b/src/tools/miri/tests/fail/shims/return_type_mismatch.stderr
index 18ff3067fa0..080ee16a2eb 100644
--- a/src/tools/miri/tests/fail/shims/return_type_mismatch.stderr
+++ b/src/tools/miri/tests/fail/shims/return_type_mismatch.stderr
@@ -6,8 +6,6 @@ LL |         close(fd);
    |
    = help: this indicates a bug in the program: it performed an invalid operation, and caused Undefined Behavior
    = help: see https://doc.rust-lang.org/nightly/reference/behavior-considered-undefined.html for further information
-   = help: this means these two types are not *guaranteed* to be ABI-compatible across all targets
-   = help: if you think this code should be accepted anyway, please report an issue with Miri
    = note: BACKTRACE:
    = note: inside `main` at tests/fail/shims/return_type_mismatch.rs:LL:CC
 
diff --git a/src/tools/miri/tests/fail/tail_calls/signature-mismatch-arg.rs b/src/tools/miri/tests/fail/tail_calls/signature-mismatch-arg.rs
index 6df132d3255..36bd1e99cfb 100644
--- a/src/tools/miri/tests/fail/tail_calls/signature-mismatch-arg.rs
+++ b/src/tools/miri/tests/fail/tail_calls/signature-mismatch-arg.rs
@@ -6,7 +6,7 @@ fn main() {
     //   the error should point to `become g(x)`,
     //   but tail calls mess up the backtrace it seems like...
     f(0);
-    //~^ error: Undefined Behavior: calling a function with argument of type i32 passing data of type u32
+    //~^ error: type i32 passing argument of type u32
 }
 
 fn f(x: u32) {
diff --git a/src/tools/miri/tests/fail/tail_calls/signature-mismatch-arg.stderr b/src/tools/miri/tests/fail/tail_calls/signature-mismatch-arg.stderr
index fbb0d3d565d..cabea5df85d 100644
--- a/src/tools/miri/tests/fail/tail_calls/signature-mismatch-arg.stderr
+++ b/src/tools/miri/tests/fail/tail_calls/signature-mismatch-arg.stderr
@@ -1,4 +1,4 @@
-error: Undefined Behavior: calling a function with argument of type i32 passing data of type u32
+error: Undefined Behavior: calling a function whose parameter #1 has type i32 passing argument of type u32
   --> tests/fail/tail_calls/signature-mismatch-arg.rs:LL:CC
    |
 LL |     f(0);
diff --git a/src/tools/miri/tests/pass/const-addrs.rs b/src/tools/miri/tests/pass/const-addrs.rs
index af68b28b2b8..0d1531c73cd 100644
--- a/src/tools/miri/tests/pass/const-addrs.rs
+++ b/src/tools/miri/tests/pass/const-addrs.rs
@@ -1,14 +1,10 @@
-// The const fn interpreter creates a new AllocId every time it evaluates any const.
-// If we do that in Miri, repeatedly evaluating a const causes unbounded memory use
-// we need to keep track of the base address for that AllocId, and the allocation is never
-// deallocated.
-// In Miri we explicitly store previously-assigned AllocIds for each const and ensure
-// that we only hand out a finite number of AllocIds per const.
-// MIR inlining will put every evaluation of the const we're repeatedly evaluating into the same
-// stack frame, breaking this test.
+// The interpreter used to create a new AllocId every time it evaluates any const.
+// This caused unbounded memory use in Miri.
+// This test verifies that we only create a bounded amount of addresses for any given const.
+// In practice, the interpreter always returns the same address, but we *do not guarantee* that.
 //@compile-flags: -Zinline-mir=no
 
-const EVALS: usize = 256;
+const EVALS: usize = 64;
 
 use std::collections::HashSet;
 fn main() {
@@ -16,10 +12,8 @@ fn main() {
     for _ in 0..EVALS {
         addrs.insert(const_addr());
     }
-    // Check that the const allocation has multiple base addresses
-    assert!(addrs.len() > 1);
-    // But also that we get a limited number of unique base addresses
-    assert!(addrs.len() < EVALS);
+    // Check that we always return the same base address for the const allocation.
+    assert_eq!(addrs.len(), 1);
 
     // Check that within a call we always produce the same address
     let mut prev = 0;
diff --git a/src/tools/miri/tests/pass/fn_align.rs b/src/tools/miri/tests/pass/fn_align.rs
index 28f92995880..9752d033458 100644
--- a/src/tools/miri/tests/pass/fn_align.rs
+++ b/src/tools/miri/tests/pass/fn_align.rs
@@ -1,15 +1,19 @@
 //@compile-flags: -Zmin-function-alignment=8
+
+// FIXME(rust-lang/rust#82232, rust-lang/rust#143834): temporarily renamed to mitigate `#[align]`
+// nameres ambiguity
+#![feature(rustc_attrs)]
 #![feature(fn_align)]
 
 // When a function uses `align(N)`, the function address should be a multiple of `N`.
 
-#[align(256)]
+#[rustc_align(256)]
 fn foo() {}
 
-#[align(16)]
+#[rustc_align(16)]
 fn bar() {}
 
-#[align(4)]
+#[rustc_align(4)]
 fn baz() {}
 
 fn main() {
diff --git a/src/tools/miri/tests/ui.rs b/src/tools/miri/tests/ui.rs
index 43f855d57dd..cb915b11b67 100644
--- a/src/tools/miri/tests/ui.rs
+++ b/src/tools/miri/tests/ui.rs
@@ -13,7 +13,8 @@ use ui_test::custom_flags::edition::Edition;
 use ui_test::dependencies::DependencyBuilder;
 use ui_test::per_test_config::TestConfig;
 use ui_test::spanned::Spanned;
-use ui_test::{CommandBuilder, Config, Format, Match, ignore_output_conflict, status_emitter};
+use ui_test::status_emitter::StatusEmitter;
+use ui_test::{CommandBuilder, Config, Match, ignore_output_conflict};
 
 #[derive(Copy, Clone, Debug)]
 enum Mode {
@@ -141,7 +142,7 @@ fn miri_config(
                     envs: vec![("RUSTFLAGS".into(), None)],
                     ..CommandBuilder::cargo()
                 },
-                crate_manifest_path: Path::new("test_dependencies").join("Cargo.toml"),
+                crate_manifest_path: Path::new("tests/deps").join("Cargo.toml"),
                 build_std: None,
                 bless_lockfile: bless,
             },
@@ -216,10 +217,7 @@ fn run_tests(
         // This could be used to overwrite the `Config` on a per-test basis.
         |_, _| {},
         // No GHA output as that would also show in the main rustc repo.
-        match args.format {
-            Format::Terse => status_emitter::Text::quiet(),
-            Format::Pretty => status_emitter::Text::verbose(),
-        },
+        Box::<dyn StatusEmitter>::from(args.format),
     )
 }
 
@@ -335,7 +333,7 @@ fn main() -> Result<()> {
     ui(Mode::Panic, "tests/panic", &target, WithDependencies, tmpdir.path())?;
     ui(Mode::Fail, "tests/fail", &target, WithoutDependencies, tmpdir.path())?;
     ui(Mode::Fail, "tests/fail-dep", &target, WithDependencies, tmpdir.path())?;
-    if cfg!(unix) && target == host {
+    if cfg!(all(unix, feature = "native-lib")) && target == host {
         ui(Mode::Pass, "tests/native-lib/pass", &target, WithoutDependencies, tmpdir.path())?;
         ui(Mode::Fail, "tests/native-lib/fail", &target, WithoutDependencies, tmpdir.path())?;
     }
diff --git a/src/tools/miri/triagebot.toml b/src/tools/miri/triagebot.toml
index 60e80c3f673..a0ce9f80024 100644
--- a/src/tools/miri/triagebot.toml
+++ b/src/tools/miri/triagebot.toml
@@ -16,7 +16,13 @@ allow-unauthenticated = [
 # Enables assigning users to issues and PRs.
 [assign]
 warn_non_default_branch = true
-contributing_url = "https://github.com/rust-lang/miri/blob/master/CONTRIBUTING.md"
+contributing_url = "https://github.com/rust-lang/miri/blob/master/CONTRIBUTING.md#pr-review-process"
+[assign.custom_welcome_messages]
+welcome-message = "(unused)"
+welcome-message-no-reviewer = """
+Thank you for contributing to Miri!
+Please remember to not force-push to the PR branch except when you need to rebase due to a conflict or when the reviewer asks you for it.
+"""
 
 [no-merges]
 exclude_titles = ["Rustup"]
@@ -38,6 +44,12 @@ remove = []
 add = ["S-waiting-on-author"]
 unless = ["S-blocked", "S-waiting-on-team", "S-waiting-on-review"]
 
+[autolabel."S-waiting-on-review"]
+new_pr = true
+
+[autolabel."S-waiting-on-author"]
+new_draft = true
+
 # Automatically close and reopen PRs made by bots to run CI on them
 [bot-pull-requests]
 
diff --git a/src/tools/opt-dist/src/environment.rs b/src/tools/opt-dist/src/environment.rs
index d41dc80e6b2..2cae0785f33 100644
--- a/src/tools/opt-dist/src/environment.rs
+++ b/src/tools/opt-dist/src/environment.rs
@@ -28,6 +28,8 @@ pub struct Environment {
     run_tests: bool,
     fast_try_build: bool,
     build_llvm: bool,
+    #[builder(default)]
+    stage0_root: Option<Utf8PathBuf>,
 }
 
 impl Environment {
@@ -48,7 +50,7 @@ impl Environment {
     }
 
     pub fn build_artifacts(&self) -> Utf8PathBuf {
-        self.build_root().join("build").join(&self.host_tuple)
+        self.build_root().join(&self.host_tuple)
     }
 
     pub fn artifact_dir(&self) -> Utf8PathBuf {
@@ -56,17 +58,11 @@ impl Environment {
     }
 
     pub fn cargo_stage_0(&self) -> Utf8PathBuf {
-        self.build_artifacts()
-            .join("stage0")
-            .join("bin")
-            .join(format!("cargo{}", executable_extension()))
+        self.stage0().join("bin").join(format!("cargo{}", executable_extension()))
     }
 
     pub fn rustc_stage_0(&self) -> Utf8PathBuf {
-        self.build_artifacts()
-            .join("stage0")
-            .join("bin")
-            .join(format!("rustc{}", executable_extension()))
+        self.stage0().join("bin").join(format!("rustc{}", executable_extension()))
     }
 
     pub fn rustc_stage_2(&self) -> Utf8PathBuf {
@@ -116,6 +112,10 @@ impl Environment {
     pub fn build_llvm(&self) -> bool {
         self.build_llvm
     }
+
+    pub fn stage0(&self) -> Utf8PathBuf {
+        self.stage0_root.clone().unwrap_or_else(|| self.build_artifacts().join("stage0"))
+    }
 }
 
 /// What is the extension of binary executables on this platform?
diff --git a/src/tools/opt-dist/src/exec.rs b/src/tools/opt-dist/src/exec.rs
index 56eff2ca2a7..a8d4c93d160 100644
--- a/src/tools/opt-dist/src/exec.rs
+++ b/src/tools/opt-dist/src/exec.rs
@@ -99,7 +99,7 @@ pub struct Bootstrap {
 
 impl Bootstrap {
     pub fn build(env: &Environment) -> Self {
-        let metrics_path = env.build_root().join("build").join("metrics.json");
+        let metrics_path = env.build_root().join("metrics.json");
         let cmd = cmd(&[
             env.python_binary(),
             env.checkout_path().join("x.py").as_str(),
@@ -119,7 +119,7 @@ impl Bootstrap {
     }
 
     pub fn dist(env: &Environment, dist_args: &[String]) -> Self {
-        let metrics_path = env.build_root().join("build").join("metrics.json");
+        let metrics_path = env.build_root().join("metrics.json");
         let args = dist_args.iter().map(|arg| arg.as_str()).collect::<Vec<_>>();
         let cmd = cmd(&args).env("RUST_BACKTRACE", "full");
         let mut cmd = add_shared_x_flags(env, cmd);
diff --git a/src/tools/opt-dist/src/main.rs b/src/tools/opt-dist/src/main.rs
index 7857f196626..19706b4a4f0 100644
--- a/src/tools/opt-dist/src/main.rs
+++ b/src/tools/opt-dist/src/main.rs
@@ -62,7 +62,7 @@ enum EnvironmentCmd {
         python: String,
 
         /// Directory where artifacts (like PGO profiles or rustc-perf) of this workflow
-        /// will be stored.
+        /// will be stored. Relative to `checkout_dir`
         #[arg(long, default_value = "opt-artifacts")]
         artifact_dir: Utf8PathBuf,
 
@@ -102,6 +102,15 @@ enum EnvironmentCmd {
         /// Will be LLVM built during the run?
         #[arg(long, default_value_t = true, action(clap::ArgAction::Set))]
         build_llvm: bool,
+
+        /// Set build artifacts dir. Relative to `checkout_dir`, should point to the directory set
+        /// in bootstrap.toml via `build.build-dir` option
+        #[arg(long, default_value = "build")]
+        build_dir: Utf8PathBuf,
+
+        /// Path to custom stage0 root
+        #[arg(long)]
+        stage0_root: Option<Utf8PathBuf>,
     },
     /// Perform an optimized build on Linux CI, from inside Docker.
     LinuxCi {
@@ -138,14 +147,16 @@ fn create_environment(args: Args) -> anyhow::Result<(Environment, Vec<String>)>
             shared,
             run_tests,
             build_llvm,
+            build_dir,
+            stage0_root,
         } => {
             let env = EnvironmentBuilder::default()
                 .host_tuple(target_triple)
                 .python_binary(python)
                 .checkout_dir(checkout_dir.clone())
                 .host_llvm_dir(llvm_dir)
-                .artifact_dir(artifact_dir)
-                .build_dir(checkout_dir)
+                .artifact_dir(checkout_dir.join(artifact_dir))
+                .build_dir(checkout_dir.join(build_dir))
                 .prebuilt_rustc_perf(rustc_perf_checkout_dir)
                 .shared_llvm(llvm_shared)
                 .use_bolt(use_bolt)
@@ -154,6 +165,7 @@ fn create_environment(args: Args) -> anyhow::Result<(Environment, Vec<String>)>
                 .run_tests(run_tests)
                 .fast_try_build(is_fast_try_build)
                 .build_llvm(build_llvm)
+                .stage0_root(stage0_root)
                 .build()?;
 
             (env, shared.build_args)
@@ -171,7 +183,7 @@ fn create_environment(args: Args) -> anyhow::Result<(Environment, Vec<String>)>
                 .checkout_dir(checkout_dir.clone())
                 .host_llvm_dir(Utf8PathBuf::from("/rustroot"))
                 .artifact_dir(Utf8PathBuf::from("/tmp/tmp-multistage/opt-artifacts"))
-                .build_dir(checkout_dir.join("obj"))
+                .build_dir(checkout_dir.join("obj").join("build"))
                 .shared_llvm(true)
                 // FIXME: Enable bolt for aarch64 once it's fixed upstream. Broken as of December 2024.
                 .use_bolt(!is_aarch64)
@@ -194,7 +206,7 @@ fn create_environment(args: Args) -> anyhow::Result<(Environment, Vec<String>)>
                 .checkout_dir(checkout_dir.clone())
                 .host_llvm_dir(checkout_dir.join("citools").join("clang-rust"))
                 .artifact_dir(checkout_dir.join("opt-artifacts"))
-                .build_dir(checkout_dir)
+                .build_dir(checkout_dir.join("build"))
                 .shared_llvm(false)
                 .use_bolt(false)
                 .skipped_tests(vec![])
diff --git a/src/tools/opt-dist/src/tests.rs b/src/tools/opt-dist/src/tests.rs
index 2d2aab86eda..c9a21fc6fb2 100644
--- a/src/tools/opt-dist/src/tests.rs
+++ b/src/tools/opt-dist/src/tests.rs
@@ -13,7 +13,7 @@ pub fn run_tests(env: &Environment) -> anyhow::Result<()> {
     // and then use that extracted rustc as a stage0 compiler.
     // Then we run a subset of tests using that compiler, to have a basic smoke test which checks
     // whether the optimization pipeline hasn't broken something.
-    let build_dir = env.build_root().join("build");
+    let build_dir = env.build_root();
     let dist_dir = build_dir.join("dist");
     let unpacked_dist_dir = build_dir.join("unpacked-dist");
     std::fs::create_dir_all(&unpacked_dist_dir)?;
@@ -100,8 +100,8 @@ llvm-config = "{llvm_config}"
             env.host_tuple(),
             "--stage",
             "0",
-            "tests/assembly",
-            "tests/codegen",
+            "tests/assembly-llvm",
+            "tests/codegen-llvm",
             "tests/codegen-units",
             "tests/incremental",
             "tests/mir-opt",
diff --git a/src/tools/run-make-support/src/external_deps/rustc.rs b/src/tools/run-make-support/src/external_deps/rustc.rs
index 1ea549ca7ea..08ba1388dc1 100644
--- a/src/tools/run-make-support/src/external_deps/rustc.rs
+++ b/src/tools/run-make-support/src/external_deps/rustc.rs
@@ -52,13 +52,20 @@ impl Rustc {
     // `rustc` invocation constructor methods
 
     /// Construct a new `rustc` invocation. This will automatically set the library
-    /// search path as `-L cwd()` and also the compilation target.
+    /// search path as `-L cwd()`, configure the compilation target and enable
+    /// dynamic linkage by default on musl hosts.
     /// Use [`bare_rustc`] to avoid this.
     #[track_caller]
     pub fn new() -> Self {
         let mut cmd = setup_common();
         cmd.arg("-L").arg(cwd());
 
+        // FIXME: On musl hosts, we currently default to static linkage, while
+        // for running run-make tests, we rely on dynamic linkage by default
+        if std::env::var("IS_MUSL_HOST").is_ok_and(|i| i == "1") {
+            cmd.arg("-Ctarget-feature=-crt-static");
+        }
+
         // Automatically default to cross-compilation
         Self { cmd, target: Some(target()) }
     }
diff --git a/src/tools/rust-analyzer/crates/hir-ty/src/layout/adt.rs b/src/tools/rust-analyzer/crates/hir-ty/src/layout/adt.rs
index 236f316366d..372a9dfc43d 100644
--- a/src/tools/rust-analyzer/crates/hir-ty/src/layout/adt.rs
+++ b/src/tools/rust-analyzer/crates/hir-ty/src/layout/adt.rs
@@ -3,9 +3,9 @@
 use std::{cmp, ops::Bound};
 
 use hir_def::{
-    AdtId, VariantId,
     layout::{Integer, ReprOptions, TargetDataLayout},
     signatures::{StructFlags, VariantFields},
+    AdtId, VariantId,
 };
 use intern::sym;
 use rustc_index::IndexVec;
@@ -13,9 +13,9 @@ use smallvec::SmallVec;
 use triomphe::Arc;
 
 use crate::{
-    Substitution, TraitEnvironment,
     db::HirDatabase,
-    layout::{Layout, LayoutError, field_ty},
+    layout::{field_ty, Layout, LayoutError},
+    Substitution, TraitEnvironment,
 };
 
 use super::LayoutCx;
@@ -85,16 +85,6 @@ pub fn layout_of_adt_query(
                 let d = db.const_eval_discriminant(e.enum_variants(db).variants[id.0].0).ok()?;
                 Some((id, d))
             }),
-            // FIXME: The current code for niche-filling relies on variant indices
-            // instead of actual discriminants, so enums with
-            // explicit discriminants (RFC #2363) would misbehave and we should disable
-            // niche optimization for them.
-            // The code that do it in rustc:
-            // repr.inhibit_enum_layout_opt() || def
-            //     .variants()
-            //     .iter_enumerated()
-            //     .any(|(i, v)| v.discr != ty::VariantDiscr::Relative(i.as_u32()))
-            repr.inhibit_enum_layout_opt(),
             !matches!(def, AdtId::EnumId(..))
                 && variants
                     .iter()
diff --git a/src/tools/rustdoc-gui-test/src/main.rs b/src/tools/rustdoc-gui-test/src/main.rs
index 5b86bea8932..42feae8c208 100644
--- a/src/tools/rustdoc-gui-test/src/main.rs
+++ b/src/tools/rustdoc-gui-test/src/main.rs
@@ -65,10 +65,8 @@ fn main() -> Result<(), ()> {
         }
     }
 
-    // FIXME(binarycat): once we get package.json in version control, this should be updated to install via that instead
-    let local_node_modules =
-        npm::install_one(&config.out_dir, &config.npm, "browser-ui-test", "0.21.1")
-            .expect("unable to install browser-ui-test");
+    let local_node_modules = npm::install(&config.rust_src, &config.out_dir, &config.npm)
+        .expect("unable to install browser-ui-test");
 
     let mut command = Command::new(&config.nodejs);
 
diff --git a/src/tools/tidy/Cargo.toml b/src/tools/tidy/Cargo.toml
index d995106ae02..c1f27de7ed4 100644
--- a/src/tools/tidy/Cargo.toml
+++ b/src/tools/tidy/Cargo.toml
@@ -6,7 +6,7 @@ autobins = false
 
 [dependencies]
 build_helper = { path = "../../build_helper" }
-cargo_metadata = "0.19"
+cargo_metadata = "0.21"
 regex = "1"
 miropt-test-tools = { path = "../miropt-test-tools" }
 walkdir = "2"
diff --git a/src/tools/tidy/src/deps.rs b/src/tools/tidy/src/deps.rs
index f43f5eae9a5..8e2a796106f 100644
--- a/src/tools/tidy/src/deps.rs
+++ b/src/tools/tidy/src/deps.rs
@@ -73,7 +73,6 @@ pub(crate) const WORKSPACES: &[(&str, ExceptionList, Option<(&[&str], &[&str])>,
     // tidy-alphabetical-start
     ("compiler/rustc_codegen_gcc", EXCEPTIONS_GCC, None, &[]),
     ("src/bootstrap", EXCEPTIONS_BOOTSTRAP, None, &[]),
-    ("src/ci/docker/host-x86_64/test-various/uefi_qemu_test", EXCEPTIONS_UEFI_QEMU_TEST, None, &[]),
     ("src/tools/cargo", EXCEPTIONS_CARGO, None, &["src/tools/cargo"]),
     //("src/tools/miri/test-cargo-miri", &[], None), // FIXME uncomment once all deps are vendored
     //("src/tools/miri/test_dependencies", &[], None), // FIXME uncomment once all deps are vendored
@@ -81,6 +80,7 @@ pub(crate) const WORKSPACES: &[(&str, ExceptionList, Option<(&[&str], &[&str])>,
     ("src/tools/rustbook", EXCEPTIONS_RUSTBOOK, None, &["src/doc/book", "src/doc/reference"]),
     ("src/tools/rustc-perf", EXCEPTIONS_RUSTC_PERF, None, &["src/tools/rustc-perf"]),
     ("src/tools/test-float-parse", EXCEPTIONS, None, &[]),
+    ("tests/run-make/uefi-qemu/uefi_qemu_test", EXCEPTIONS_UEFI_QEMU_TEST, None, &[]),
     // tidy-alphabetical-end
 ];
 
@@ -135,6 +135,7 @@ const EXCEPTIONS_CARGO: ExceptionList = &[
     ("libz-rs-sys", "Zlib"),
     ("normalize-line-endings", "Apache-2.0"),
     ("openssl", "Apache-2.0"),
+    ("ring", "Apache-2.0 AND ISC"),
     ("ryu", "Apache-2.0 OR BSL-1.0"), // BSL is not acceptble, but we use it under Apache-2.0
     ("similar", "Apache-2.0"),
     ("sized-chunks", "MPL-2.0+"),
@@ -378,6 +379,7 @@ const PERMITTED_RUSTC_DEPENDENCIES: &[&str] = &[
     "serde",
     "serde_derive",
     "serde_json",
+    "serde_path_to_error",
     "sha1",
     "sha2",
     "sharded-slab",
@@ -631,8 +633,8 @@ fn check_proc_macro_dep_list(root: &Path, cargo: &Path, bless: bool, bad: &mut b
     proc_macro_deps.retain(|pkg| !is_proc_macro_pkg(&metadata[pkg]));
 
     let proc_macro_deps: HashSet<_> =
-        proc_macro_deps.into_iter().map(|dep| metadata[dep].name.clone()).collect();
-    let expected = proc_macro_deps::CRATES.iter().map(|s| s.to_string()).collect::<HashSet<_>>();
+        proc_macro_deps.into_iter().map(|dep| metadata[dep].name.as_ref()).collect();
+    let expected = proc_macro_deps::CRATES.iter().copied().collect::<HashSet<_>>();
 
     let needs_blessing = proc_macro_deps.difference(&expected).next().is_some()
         || expected.difference(&proc_macro_deps).next().is_some();
@@ -716,7 +718,7 @@ fn check_runtime_license_exceptions(metadata: &Metadata, bad: &mut bool) {
             // See https://github.com/rust-lang/rust/issues/62620 for more.
             // In general, these should never be added and this exception
             // should not be taken as precedent for any new target.
-            if pkg.name == "fortanix-sgx-abi" && pkg.license.as_deref() == Some("MPL-2.0") {
+            if *pkg.name == "fortanix-sgx-abi" && pkg.license.as_deref() == Some("MPL-2.0") {
                 continue;
             }
 
@@ -732,7 +734,7 @@ fn check_license_exceptions(metadata: &Metadata, exceptions: &[(&str, &str)], ba
     // Validate the EXCEPTIONS list hasn't changed.
     for (name, license) in exceptions {
         // Check that the package actually exists.
-        if !metadata.packages.iter().any(|p| p.name == *name) {
+        if !metadata.packages.iter().any(|p| *p.name == *name) {
             tidy_error!(
                 bad,
                 "could not find exception package `{}`\n\
@@ -741,7 +743,7 @@ fn check_license_exceptions(metadata: &Metadata, exceptions: &[(&str, &str)], ba
             );
         }
         // Check that the license hasn't changed.
-        for pkg in metadata.packages.iter().filter(|p| p.name == *name) {
+        for pkg in metadata.packages.iter().filter(|p| *p.name == *name) {
             match &pkg.license {
                 None => {
                     if *license == NON_STANDARD_LICENSE
@@ -816,9 +818,9 @@ fn check_permitted_dependencies(
                 let Ok(version) = Version::parse(version) else {
                     return false;
                 };
-                pkg.name == name && pkg.version == version
+                *pkg.name == name && pkg.version == version
             } else {
-                pkg.name == permitted
+                *pkg.name == permitted
             }
         }
         if !deps.iter().any(|dep_id| compare(pkg_from_id(metadata, dep_id), permitted)) {
@@ -866,7 +868,7 @@ fn check_permitted_dependencies(
 
 /// Finds a package with the given name.
 fn pkg_from_name<'a>(metadata: &'a Metadata, name: &'static str) -> &'a Package {
-    let mut i = metadata.packages.iter().filter(|p| p.name == name);
+    let mut i = metadata.packages.iter().filter(|p| *p.name == name);
     let result =
         i.next().unwrap_or_else(|| panic!("could not find package `{name}` in package list"));
     assert!(i.next().is_none(), "more than one package found for `{name}`");
diff --git a/src/tools/tidy/src/ext_tool_checks.rs b/src/tools/tidy/src/extra_checks/mod.rs
index 381ea44fd46..8121eb057db 100644
--- a/src/tools/tidy/src/ext_tool_checks.rs
+++ b/src/tools/tidy/src/extra_checks/mod.rs
@@ -25,6 +25,8 @@ use std::{fmt, fs, io};
 
 use crate::CiInfo;
 
+mod rustdoc_js;
+
 const MIN_PY_REV: (u32, u32) = (3, 9);
 const MIN_PY_REV_STR: &str = "≥3.9";
 
@@ -46,12 +48,25 @@ pub fn check(
     root_path: &Path,
     outdir: &Path,
     ci_info: &CiInfo,
+    librustdoc_path: &Path,
+    tools_path: &Path,
+    npm: &Path,
     bless: bool,
     extra_checks: Option<&str>,
     pos_args: &[String],
     bad: &mut bool,
 ) {
-    if let Err(e) = check_impl(root_path, outdir, ci_info, bless, extra_checks, pos_args) {
+    if let Err(e) = check_impl(
+        root_path,
+        outdir,
+        ci_info,
+        librustdoc_path,
+        tools_path,
+        npm,
+        bless,
+        extra_checks,
+        pos_args,
+    ) {
         tidy_error!(bad, "{e}");
     }
 }
@@ -60,6 +75,9 @@ fn check_impl(
     root_path: &Path,
     outdir: &Path,
     ci_info: &CiInfo,
+    librustdoc_path: &Path,
+    tools_path: &Path,
+    npm: &Path,
     bless: bool,
     extra_checks: Option<&str>,
     pos_args: &[String],
@@ -108,6 +126,8 @@ fn check_impl(
     let shell_lint = extra_check!(Shell, Lint);
     let cpp_fmt = extra_check!(Cpp, Fmt);
     let spellcheck = extra_check!(Spellcheck, None);
+    let js_lint = extra_check!(Js, Lint);
+    let js_typecheck = extra_check!(Js, Typecheck);
 
     let mut py_path = None;
 
@@ -275,6 +295,19 @@ fn check_impl(
         spellcheck_runner(&args)?;
     }
 
+    if js_lint || js_typecheck {
+        rustdoc_js::npm_install(root_path, outdir, npm)?;
+    }
+
+    if js_lint {
+        rustdoc_js::lint(outdir, librustdoc_path, tools_path)?;
+        rustdoc_js::es_check(outdir, librustdoc_path)?;
+    }
+
+    if js_typecheck {
+        rustdoc_js::typecheck(outdir, librustdoc_path)?;
+    }
+
     Ok(())
 }
 
@@ -697,6 +730,7 @@ impl ExtraCheckArg {
             ExtraCheckLang::Py => ".py",
             ExtraCheckLang::Cpp => ".cpp",
             ExtraCheckLang::Shell => ".sh",
+            ExtraCheckLang::Js => ".js",
             ExtraCheckLang::Spellcheck => {
                 return !crate::files_modified(ci_info, |s| {
                     SPELLCHECK_DIRS.iter().any(|dir| Path::new(s).starts_with(dir))
@@ -717,6 +751,7 @@ impl ExtraCheckArg {
             ExtraCheckLang::Cpp => &[Fmt],
             ExtraCheckLang::Shell => &[Lint],
             ExtraCheckLang::Spellcheck => &[],
+            ExtraCheckLang::Js => &[Lint, Typecheck],
         };
         supported_kinds.contains(&kind)
     }
@@ -757,6 +792,7 @@ enum ExtraCheckLang {
     Shell,
     Cpp,
     Spellcheck,
+    Js,
 }
 
 impl FromStr for ExtraCheckLang {
@@ -768,6 +804,7 @@ impl FromStr for ExtraCheckLang {
             "shell" => Self::Shell,
             "cpp" => Self::Cpp,
             "spellcheck" => Self::Spellcheck,
+            "js" => Self::Js,
             _ => return Err(ExtraCheckParseError::UnknownLang(s.to_string())),
         })
     }
@@ -777,6 +814,7 @@ impl FromStr for ExtraCheckLang {
 enum ExtraCheckKind {
     Lint,
     Fmt,
+    Typecheck,
     /// Never parsed, but used as a placeholder for
     /// langs that never have a specific kind.
     None,
@@ -789,6 +827,7 @@ impl FromStr for ExtraCheckKind {
         Ok(match s {
             "lint" => Self::Lint,
             "fmt" => Self::Fmt,
+            "typecheck" => Self::Typecheck,
             _ => return Err(ExtraCheckParseError::UnknownKind(s.to_string())),
         })
     }
diff --git a/src/tools/tidy/src/extra_checks/rustdoc_js.rs b/src/tools/tidy/src/extra_checks/rustdoc_js.rs
new file mode 100644
index 00000000000..7708b128e23
--- /dev/null
+++ b/src/tools/tidy/src/extra_checks/rustdoc_js.rs
@@ -0,0 +1,113 @@
+//! Tidy check to ensure that rustdoc templates didn't forget a `{# #}` to strip extra whitespace
+//! characters.
+
+use std::ffi::OsStr;
+use std::io;
+use std::path::{Path, PathBuf};
+use std::process::{Child, Command};
+
+use build_helper::npm;
+use ignore::DirEntry;
+
+use crate::walk::walk_no_read;
+
+fn node_module_bin(outdir: &Path, name: &str) -> PathBuf {
+    outdir.join("node_modules/.bin").join(name)
+}
+
+fn spawn_cmd(cmd: &mut Command) -> Result<Child, io::Error> {
+    cmd.spawn().map_err(|err| {
+        eprintln!("unable to run {cmd:?} due to {err:?}");
+        err
+    })
+}
+
+/// install all js dependencies from package.json.
+pub(super) fn npm_install(root_path: &Path, outdir: &Path, npm: &Path) -> Result<(), super::Error> {
+    npm::install(root_path, outdir, npm)?;
+    Ok(())
+}
+
+fn rustdoc_js_files(librustdoc_path: &Path) -> Vec<PathBuf> {
+    let mut files = Vec::new();
+    walk_no_read(
+        &[&librustdoc_path.join("html/static/js")],
+        |path, is_dir| is_dir || path.extension().is_none_or(|ext| ext != OsStr::new("js")),
+        &mut |path: &DirEntry| {
+            files.push(path.path().into());
+        },
+    );
+    return files;
+}
+
+fn run_eslint(outdir: &Path, args: &[PathBuf], config_folder: PathBuf) -> Result<(), super::Error> {
+    let mut child = spawn_cmd(
+        Command::new(node_module_bin(outdir, "eslint"))
+            .arg("-c")
+            .arg(config_folder.join(".eslintrc.js"))
+            .args(args),
+    )?;
+    match child.wait() {
+        Ok(exit_status) => {
+            if exit_status.success() {
+                return Ok(());
+            }
+            Err(super::Error::FailedCheck("eslint command failed"))
+        }
+        Err(error) => Err(super::Error::Generic(format!("eslint command failed: {error:?}"))),
+    }
+}
+
+pub(super) fn lint(
+    outdir: &Path,
+    librustdoc_path: &Path,
+    tools_path: &Path,
+) -> Result<(), super::Error> {
+    let files_to_check = rustdoc_js_files(librustdoc_path);
+    println!("Running eslint on rustdoc JS files");
+    run_eslint(outdir, &files_to_check, librustdoc_path.join("html/static"))?;
+
+    run_eslint(outdir, &[tools_path.join("rustdoc-js/tester.js")], tools_path.join("rustdoc-js"))?;
+    run_eslint(
+        outdir,
+        &[tools_path.join("rustdoc-gui/tester.js")],
+        tools_path.join("rustdoc-gui"),
+    )?;
+    Ok(())
+}
+
+pub(super) fn typecheck(outdir: &Path, librustdoc_path: &Path) -> Result<(), super::Error> {
+    // use npx to ensure correct version
+    let mut child = spawn_cmd(
+        Command::new(node_module_bin(outdir, "tsc"))
+            .arg("-p")
+            .arg(librustdoc_path.join("html/static/js/tsconfig.json")),
+    )?;
+    match child.wait() {
+        Ok(exit_status) => {
+            if exit_status.success() {
+                return Ok(());
+            }
+            Err(super::Error::FailedCheck("tsc command failed"))
+        }
+        Err(error) => Err(super::Error::Generic(format!("tsc command failed: {error:?}"))),
+    }
+}
+
+pub(super) fn es_check(outdir: &Path, librustdoc_path: &Path) -> Result<(), super::Error> {
+    let files_to_check = rustdoc_js_files(librustdoc_path);
+    let mut cmd = Command::new(node_module_bin(outdir, "es-check"));
+    cmd.arg("es2019");
+    for f in files_to_check {
+        cmd.arg(f);
+    }
+    match spawn_cmd(&mut cmd)?.wait() {
+        Ok(exit_status) => {
+            if exit_status.success() {
+                return Ok(());
+            }
+            Err(super::Error::FailedCheck("es-check command failed"))
+        }
+        Err(error) => Err(super::Error::Generic(format!("es-check command failed: {error:?}"))),
+    }
+}
diff --git a/src/tools/tidy/src/issues.txt b/src/tools/tidy/src/issues.txt
index 77414bec82d..ee06707415f 100644
--- a/src/tools/tidy/src/issues.txt
+++ b/src/tools/tidy/src/issues.txt
@@ -1364,1230 +1364,6 @@ ui/infinite/issue-41731-infinite-macro-println.rs
 ui/intrinsics/issue-28575.rs
 ui/intrinsics/issue-84297-reifying-copy.rs
 ui/invalid/issue-114435-layout-type-err.rs
-ui/issues/auxiliary/issue-11224.rs
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diff --git a/src/tools/tidy/src/lib.rs b/src/tools/tidy/src/lib.rs
index cb875504e1e..4f9fb308a86 100644
--- a/src/tools/tidy/src/lib.rs
+++ b/src/tools/tidy/src/lib.rs
@@ -165,8 +165,8 @@ pub mod debug_artifacts;
 pub mod deps;
 pub mod edition;
 pub mod error_codes;
-pub mod ext_tool_checks;
 pub mod extdeps;
+pub mod extra_checks;
 pub mod features;
 pub mod filenames;
 pub mod fluent_alphabetical;
@@ -179,7 +179,6 @@ pub mod mir_opt_tests;
 pub mod pal;
 pub mod rustdoc_css_themes;
 pub mod rustdoc_gui_tests;
-pub mod rustdoc_js;
 pub mod rustdoc_json;
 pub mod rustdoc_templates;
 pub mod style;
diff --git a/src/tools/tidy/src/main.rs b/src/tools/tidy/src/main.rs
index 0f1116a632e..794b0addee3 100644
--- a/src/tools/tidy/src/main.rs
+++ b/src/tools/tidy/src/main.rs
@@ -29,6 +29,7 @@ fn main() {
     let concurrency: NonZeroUsize =
         FromStr::from_str(&env::args().nth(4).expect("need concurrency"))
             .expect("concurrency must be a number");
+    let npm: PathBuf = env::args_os().nth(5).expect("need name/path of npm command").into();
 
     let root_manifest = root_path.join("Cargo.toml");
     let src_path = root_path.join("src");
@@ -112,7 +113,6 @@ fn main() {
         check!(rustdoc_gui_tests, &tests_path);
         check!(rustdoc_css_themes, &librustdoc_path);
         check!(rustdoc_templates, &librustdoc_path);
-        check!(rustdoc_js, &librustdoc_path, &tools_path, &src_path);
         check!(rustdoc_json, &src_path, &ci_info);
         check!(known_bug, &crashes_path);
         check!(unknown_revision, &tests_path);
@@ -177,10 +177,13 @@ fn main() {
         check!(unstable_book, &src_path, collected);
 
         check!(
-            ext_tool_checks,
+            extra_checks,
             &root_path,
             &output_directory,
             &ci_info,
+            &librustdoc_path,
+            &tools_path,
+            &npm,
             bless,
             extra_checks,
             pos_args
diff --git a/src/tools/tidy/src/pal.rs b/src/tools/tidy/src/pal.rs
index b7d4a331891..5b8b44429bb 100644
--- a/src/tools/tidy/src/pal.rs
+++ b/src/tools/tidy/src/pal.rs
@@ -37,6 +37,7 @@ use crate::walk::{filter_dirs, walk};
 // Paths that may contain platform-specific code.
 const EXCEPTION_PATHS: &[&str] = &[
     "library/compiler-builtins",
+    "library/std_detect",
     "library/windows_targets",
     "library/panic_abort",
     "library/panic_unwind",
diff --git a/src/tools/tidy/src/rustdoc_js.rs b/src/tools/tidy/src/rustdoc_js.rs
deleted file mode 100644
index 5737fcbafc0..00000000000
--- a/src/tools/tidy/src/rustdoc_js.rs
+++ /dev/null
@@ -1,101 +0,0 @@
-//! Tidy check to ensure that rustdoc templates didn't forget a `{# #}` to strip extra whitespace
-//! characters.
-
-use std::ffi::OsStr;
-use std::path::{Path, PathBuf};
-use std::process::Command;
-
-use ignore::DirEntry;
-
-use crate::walk::walk_no_read;
-
-fn run_eslint(args: &[PathBuf], config_folder: PathBuf, bad: &mut bool) {
-    let mut child = match Command::new("npx")
-        .arg("eslint")
-        .arg("-c")
-        .arg(config_folder.join(".eslintrc.js"))
-        .args(args)
-        .spawn()
-    {
-        Ok(child) => child,
-        Err(error) => {
-            *bad = true;
-            eprintln!("failed to run eslint: {error:?}");
-            return;
-        }
-    };
-    match child.wait() {
-        Ok(exit_status) => {
-            if exit_status.success() {
-                return;
-            }
-            eprintln!("eslint command failed");
-        }
-        Err(error) => eprintln!("eslint command failed: {error:?}"),
-    }
-    *bad = true;
-}
-
-fn get_eslint_version_inner(global: bool) -> Option<String> {
-    let mut command = Command::new("npm");
-    command.arg("list").arg("--parseable").arg("--long").arg("--depth=0");
-    if global {
-        command.arg("--global");
-    }
-    let output = command.output().ok()?;
-    let lines = String::from_utf8_lossy(&output.stdout);
-    lines.lines().find_map(|l| l.split(':').nth(1)?.strip_prefix("eslint@")).map(|v| v.to_owned())
-}
-
-fn get_eslint_version() -> Option<String> {
-    get_eslint_version_inner(false).or_else(|| get_eslint_version_inner(true))
-}
-
-pub fn check(librustdoc_path: &Path, tools_path: &Path, src_path: &Path, bad: &mut bool) {
-    let eslint_version_path = src_path.join("ci/docker/host-x86_64/tidy/eslint.version");
-    let eslint_version = match std::fs::read_to_string(&eslint_version_path) {
-        Ok(version) => version.trim().to_string(),
-        Err(error) => {
-            *bad = true;
-            eprintln!("failed to read `{}`: {error:?}", eslint_version_path.display());
-            return;
-        }
-    };
-    // Having the correct `eslint` version installed via `npm` isn't strictly necessary, since we're invoking it via `npx`,
-    // but this check allows the vast majority that is not working on the rustdoc frontend to avoid the penalty of running
-    // `eslint` in tidy. See also: https://github.com/rust-lang/rust/pull/142851
-    match get_eslint_version() {
-        Some(version) => {
-            if version != eslint_version {
-                *bad = true;
-                eprintln!(
-                    "⚠️ Installed version of eslint (`{version}`) is different than the \
-                     one used in the CI (`{eslint_version}`)",
-                );
-                eprintln!(
-                    "You can install this version using `npm update eslint` or by using \
-                     `npm install eslint@{eslint_version}`",
-                );
-                return;
-            }
-        }
-        None => {
-            eprintln!("`eslint` doesn't seem to be installed. Skipping tidy check for JS files.");
-            eprintln!("You can install it using `npm install eslint@{eslint_version}`");
-            return;
-        }
-    }
-    let mut files_to_check = Vec::new();
-    walk_no_read(
-        &[&librustdoc_path.join("html/static/js")],
-        |path, is_dir| is_dir || path.extension().is_none_or(|ext| ext != OsStr::new("js")),
-        &mut |path: &DirEntry| {
-            files_to_check.push(path.path().into());
-        },
-    );
-    println!("Running eslint on rustdoc JS files");
-    run_eslint(&files_to_check, librustdoc_path.join("html/static"), bad);
-
-    run_eslint(&[tools_path.join("rustdoc-js/tester.js")], tools_path.join("rustdoc-js"), bad);
-    run_eslint(&[tools_path.join("rustdoc-gui/tester.js")], tools_path.join("rustdoc-gui"), bad);
-}
diff --git a/src/tools/tidy/src/target_policy.rs b/src/tools/tidy/src/target_policy.rs
index 776221d3062..550932dbfdc 100644
--- a/src/tools/tidy/src/target_policy.rs
+++ b/src/tools/tidy/src/target_policy.rs
@@ -8,7 +8,7 @@ use std::path::Path;
 use crate::walk::{filter_not_rust, walk};
 
 const TARGET_DEFINITIONS_PATH: &str = "compiler/rustc_target/src/spec/targets/";
-const ASSEMBLY_TEST_PATH: &str = "tests/assembly/targets/";
+const ASSEMBLY_LLVM_TEST_PATH: &str = "tests/assembly-llvm/targets/";
 const REVISION_LINE_START: &str = "//@ revisions: ";
 const EXCEPTIONS: &[&str] = &[
     // FIXME: disabled since it fails on CI saying the csky component is missing
@@ -43,7 +43,7 @@ pub fn check(root_path: &Path, bad: &mut bool) {
         let _ = targets_to_find.insert(target_name);
     }
 
-    walk(&root_path.join(ASSEMBLY_TEST_PATH), |_, _| false, &mut |_, contents| {
+    walk(&root_path.join(ASSEMBLY_LLVM_TEST_PATH), |_, _| false, &mut |_, contents| {
         for line in contents.lines() {
             let Some(_) = line.find(REVISION_LINE_START) else {
                 continue;
@@ -55,7 +55,7 @@ pub fn check(root_path: &Path, bad: &mut bool) {
 
     for target in targets_to_find {
         if !EXCEPTIONS.contains(&target.as_str()) {
-            tidy_error!(bad, "{ASSEMBLY_TEST_PATH}: missing assembly test for {target}")
+            tidy_error!(bad, "{ASSEMBLY_LLVM_TEST_PATH}: missing assembly test for {target}")
         }
     }
 }
diff --git a/src/tools/tidy/src/ui_tests.rs b/src/tools/tidy/src/ui_tests.rs
index b9d22ece597..4d195b3952e 100644
--- a/src/tools/tidy/src/ui_tests.rs
+++ b/src/tools/tidy/src/ui_tests.rs
@@ -1,24 +1,12 @@
 //! Tidy check to ensure below in UI test directories:
-//! - the number of entries in each directory must be less than `ENTRY_LIMIT`
 //! - there are no stray `.stderr` files
 
-use std::collections::{BTreeSet, HashMap};
+use std::collections::BTreeSet;
 use std::ffi::OsStr;
 use std::fs;
 use std::io::Write;
 use std::path::{Path, PathBuf};
 
-use ignore::Walk;
-
-// FIXME: GitHub's UI truncates file lists that exceed 1000 entries, so these
-// should all be 1000 or lower. Limits significantly smaller than 1000 are also
-// desirable, because large numbers of files are unwieldy in general. See issue
-// #73494.
-const ENTRY_LIMIT: u32 = 901;
-// FIXME: The following limits should be reduced eventually.
-
-const ISSUES_ENTRY_LIMIT: u32 = 1616;
-
 const EXPECTED_TEST_FILE_EXTENSIONS: &[&str] = &[
     "rs",     // test source files
     "stderr", // expected stderr file, corresponds to a rs file
@@ -54,42 +42,6 @@ const EXTENSION_EXCEPTION_PATHS: &[&str] = &[
     "tests/ui/std/windows-bat-args3.bat", // tests escaping arguments through batch files
 ];
 
-fn check_entries(tests_path: &Path, bad: &mut bool) {
-    let mut directories: HashMap<PathBuf, u32> = HashMap::new();
-
-    for entry in Walk::new(tests_path.join("ui")).flatten() {
-        let parent = entry.path().parent().unwrap().to_path_buf();
-        *directories.entry(parent).or_default() += 1;
-    }
-
-    let (mut max, mut max_issues) = (0, 0);
-    for (dir_path, count) in directories {
-        let is_issues_dir = tests_path.join("ui/issues") == dir_path;
-        let (limit, maxcnt) = if is_issues_dir {
-            (ISSUES_ENTRY_LIMIT, &mut max_issues)
-        } else {
-            (ENTRY_LIMIT, &mut max)
-        };
-        *maxcnt = (*maxcnt).max(count);
-        if count > limit {
-            tidy_error!(
-                bad,
-                "following path contains more than {} entries, \
-                    you should move the test to some relevant subdirectory (current: {}): {}",
-                limit,
-                count,
-                dir_path.display()
-            );
-        }
-    }
-    if ISSUES_ENTRY_LIMIT > max_issues {
-        tidy_error!(
-            bad,
-            "`ISSUES_ENTRY_LIMIT` is too high (is {ISSUES_ENTRY_LIMIT}, should be {max_issues})"
-        );
-    }
-}
-
 pub fn check(root_path: &Path, bless: bool, bad: &mut bool) {
     let issues_txt_header = r#"============================================================
     ⚠️⚠️⚠️NOTHING SHOULD EVER BE ADDED TO THIS LIST⚠️⚠️⚠️
@@ -97,7 +49,6 @@ pub fn check(root_path: &Path, bless: bool, bad: &mut bool) {
 "#;
 
     let path = &root_path.join("tests");
-    check_entries(path, bad);
 
     // the list of files in ui tests that are allowed to start with `issue-XXXX`
     // BTreeSet because we would like a stable ordering so --bless works
@@ -179,7 +130,9 @@ pub fn check(root_path: &Path, bless: bool, bad: &mut bool) {
                     .unwrap()
                     .replace(std::path::MAIN_SEPARATOR_STR, "/");
 
-                if !remaining_issue_names.remove(stripped_path.as_str()) {
+                if !remaining_issue_names.remove(stripped_path.as_str())
+                    && !stripped_path.starts_with("ui/issues/")
+                {
                     tidy_error!(
                         bad,
                         "file `tests/{stripped_path}` must begin with a descriptive name, consider `{{reason}}-issue-{issue_n}.rs`",
diff --git a/src/tools/tidy/src/unit_tests.rs b/src/tools/tidy/src/unit_tests.rs
index 90ef36d5882..df9146b5147 100644
--- a/src/tools/tidy/src/unit_tests.rs
+++ b/src/tools/tidy/src/unit_tests.rs
@@ -56,7 +56,8 @@ pub fn check(root_path: &Path, bad: &mut bool) {
             let line = line.trim();
             let is_test = || line.contains("#[test]") && !line.contains("`#[test]");
             let is_bench = || line.contains("#[bench]") && !line.contains("`#[bench]");
-            if !line.starts_with("//") && (is_test() || is_bench()) {
+            let manual_skip = line.contains("//tidy:skip");
+            if !line.starts_with("//") && (is_test() || is_bench()) && !manual_skip {
                 let explanation = if is_core {
                     "`core` unit tests and benchmarks must be placed into `coretests`"
                 } else if is_alloc {