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-rw-r--r--Cargo.lock1
-rw-r--r--compiler/rustc_ast/src/mut_visit.rs4
-rw-r--r--compiler/rustc_ast/src/token.rs18
-rw-r--r--compiler/rustc_ast/src/tokenstream.rs4
-rw-r--r--compiler/rustc_ast_pretty/src/pprust/state.rs13
-rw-r--r--compiler/rustc_codegen_gcc/Cargo.lock176
-rw-r--r--compiler/rustc_codegen_gcc/Cargo.toml10
-rw-r--r--compiler/rustc_codegen_gcc/src/lib.rs10
-rw-r--r--compiler/rustc_codegen_llvm/src/attributes.rs46
-rw-r--r--compiler/rustc_codegen_llvm/src/lib.rs1
-rw-r--r--compiler/rustc_codegen_llvm/src/llvm_util.rs4
-rw-r--r--compiler/rustc_driver_impl/src/lib.rs1
-rw-r--r--compiler/rustc_expand/src/mbe/macro_parser.rs6
-rw-r--r--compiler/rustc_expand/src/mbe/transcribe.rs4
-rw-r--r--compiler/rustc_expand/src/proc_macro_server.rs9
-rw-r--r--compiler/rustc_feature/src/accepted.rs16
-rw-r--r--compiler/rustc_feature/src/builtin_attrs.rs8
-rw-r--r--compiler/rustc_feature/src/lib.rs5
-rw-r--r--compiler/rustc_feature/src/removed.rs2
-rw-r--r--compiler/rustc_feature/src/unstable.rs14
-rw-r--r--compiler/rustc_hir_analysis/src/collect.rs2
-rw-r--r--compiler/rustc_hir_analysis/src/collect/generics_of.rs16
-rw-r--r--compiler/rustc_hir_analysis/src/collect/predicates_of.rs16
-rw-r--r--compiler/rustc_hir_analysis/src/delegation.rs445
-rw-r--r--compiler/rustc_hir_typeck/src/upvar.rs59
-rw-r--r--compiler/rustc_index/src/interval.rs2
-rw-r--r--compiler/rustc_lexer/src/lib.rs39
-rw-r--r--compiler/rustc_lint/messages.ftl5
-rw-r--r--compiler/rustc_lint/src/builtin.rs20
-rw-r--r--compiler/rustc_lint/src/context/diagnostics.rs25
-rw-r--r--compiler/rustc_lint/src/lints.rs68
-rw-r--r--compiler/rustc_lint_defs/src/lib.rs19
-rw-r--r--compiler/rustc_llvm/src/lib.rs1
-rw-r--r--compiler/rustc_metadata/src/rmeta/encoder.rs10
-rw-r--r--compiler/rustc_middle/src/lib.rs1
-rw-r--r--compiler/rustc_middle/src/ty/closure.rs3
-rw-r--r--compiler/rustc_middle/src/ty/context.rs3
-rw-r--r--compiler/rustc_middle/src/ty/mod.rs32
-rw-r--r--compiler/rustc_mir_transform/src/coroutine/by_move_body.rs11
-rw-r--r--compiler/rustc_mir_transform/src/validate.rs13
-rw-r--r--compiler/rustc_parse/Cargo.toml1
-rw-r--r--compiler/rustc_parse/messages.ftl6
-rw-r--r--compiler/rustc_parse/src/lexer/mod.rs90
-rw-r--r--compiler/rustc_parse/src/parser/attr_wrapper.rs133
-rw-r--r--compiler/rustc_parse/src/parser/diagnostics.rs85
-rw-r--r--compiler/rustc_parse/src/parser/expr.rs6
-rw-r--r--compiler/rustc_parse/src/parser/mod.rs12
-rw-r--r--compiler/rustc_parse/src/parser/nonterminal.rs6
-rw-r--r--compiler/rustc_parse/src/parser/pat.rs6
-rw-r--r--compiler/rustc_parse/src/parser/ty.rs7
-rw-r--r--compiler/rustc_resolve/src/late.rs14
-rw-r--r--compiler/rustc_span/src/symbol.rs42
-rw-r--r--compiler/rustc_target/src/lib.rs1
-rw-r--r--compiler/rustc_target/src/spec/mod.rs1
-rw-r--r--compiler/rustc_target/src/spec/targets/x86_64_unknown_hurd_gnu.rs26
-rw-r--r--compiler/rustc_trait_selection/src/error_reporting/infer/need_type_info.rs3
-rw-r--r--compiler/rustc_transmute/src/layout/nfa.rs2
-rw-r--r--compiler/rustc_ty_utils/src/layout.rs8
-rw-r--r--compiler/rustc_type_ir/src/fold.rs4
-rw-r--r--library/alloc/src/boxed.rs8
-rw-r--r--library/alloc/src/collections/binary_heap/mod.rs2
-rw-r--r--library/alloc/src/collections/btree/map.rs4
-rw-r--r--library/alloc/src/collections/vec_deque/into_iter.rs4
-rw-r--r--library/alloc/src/collections/vec_deque/iter.rs2
-rw-r--r--library/alloc/src/collections/vec_deque/iter_mut.rs2
-rw-r--r--library/alloc/src/rc.rs8
-rw-r--r--library/alloc/src/sync.rs8
-rw-r--r--library/core/src/arch.rs9
-rw-r--r--library/core/src/cell.rs6
-rw-r--r--library/core/src/clone.rs2
-rw-r--r--library/core/src/default.rs2
-rw-r--r--library/core/src/future/ready.rs2
-rw-r--r--library/core/src/intrinsics.rs7
-rw-r--r--library/core/src/iter/adapters/take.rs6
-rw-r--r--library/core/src/iter/mod.rs2
-rw-r--r--library/core/src/iter/sources.rs2
-rw-r--r--library/core/src/iter/sources/repeat_n.rs16
-rw-r--r--library/core/src/iter/traits/iterator.rs6
-rw-r--r--library/core/src/lib.rs7
-rw-r--r--library/core/src/marker.rs17
-rw-r--r--library/core/src/mem/manually_drop.rs2
-rw-r--r--library/core/src/mem/maybe_uninit.rs2
-rw-r--r--library/core/src/mem/mod.rs1
-rw-r--r--library/core/src/mem/transmutability.rs29
-rw-r--r--library/core/src/num/error.rs2
-rw-r--r--library/core/src/num/f128.rs16
-rw-r--r--library/core/src/num/f16.rs16
-rw-r--r--library/core/src/num/f32.rs16
-rw-r--r--library/core/src/num/f64.rs16
-rw-r--r--library/core/src/num/int_macros.rs20
-rw-r--r--library/core/src/num/mod.rs6
-rw-r--r--library/core/src/option.rs2
-rw-r--r--library/core/src/pin.rs2
-rw-r--r--library/core/src/slice/mod.rs6
-rw-r--r--library/core/src/str/iter.rs2
-rw-r--r--library/core/src/str/mod.rs6
-rw-r--r--library/core/src/task/wake.rs10
-rw-r--r--library/core/src/tuple.rs2
-rw-r--r--library/core/tests/lib.rs1
-rw-r--r--library/panic_unwind/src/seh.rs6
-rw-r--r--library/std/src/env.rs16
-rw-r--r--library/std/src/lib.rs1
-rw-r--r--library/std/src/os/unix/process.rs6
-rw-r--r--library/std/src/panicking.rs18
-rw-r--r--library/std/src/sync/condvar.rs8
-rw-r--r--library/std/src/sys/dbg.rs229
-rw-r--r--library/std/src/sys/mod.rs1
-rw-r--r--library/std/src/thread/mod.rs2
-rw-r--r--library/windows_targets/src/lib.rs1
-rw-r--r--src/bootstrap/bootstrap.py21
-rw-r--r--src/bootstrap/src/core/build_steps/compile.rs2
-rw-r--r--src/bootstrap/src/core/build_steps/dist.rs2
-rw-r--r--src/bootstrap/src/core/build_steps/tool.rs38
-rw-r--r--src/bootstrap/src/core/builder.rs10
-rw-r--r--src/bootstrap/src/core/config/flags.rs3
-rw-r--r--src/bootstrap/src/core/download.rs31
-rw-r--r--src/bootstrap/src/lib.rs17
-rw-r--r--src/bootstrap/src/utils/cc_detect.rs32
-rwxr-xr-xsrc/ci/docker/host-x86_64/x86_64-gnu-tools/checktools.sh15
-rw-r--r--src/ci/github-actions/jobs.yml12
-rwxr-xr-xsrc/ci/scripts/install-mingw.sh4
-rw-r--r--src/doc/rustc/src/platform-support.md1
-rw-r--r--src/doc/rustc/src/platform-support/hurd.md7
-rw-r--r--src/etc/completions/x.py.fish20
-rw-r--r--src/etc/completions/x.py.ps118
-rw-r--r--src/etc/completions/x.py.sh108
-rw-r--r--src/etc/completions/x.py.zsh18
-rw-r--r--src/librustdoc/html/highlight.rs4
-rw-r--r--src/librustdoc/html/static/js/externs.js1
-rw-r--r--src/librustdoc/html/static/js/search.js10
-rw-r--r--src/librustdoc/json/conversions.rs102
-rw-r--r--src/librustdoc/json/mod.rs4
-rw-r--r--src/rustdoc-json-types/lib.rs86
-rw-r--r--src/rustdoc-json-types/tests.rs4
-rw-r--r--src/stage0892
-rw-r--r--src/tools/clippy/clippy_lints/src/transmute/mod.rs6
-rw-r--r--src/tools/clippy/clippy_lints/src/transmute/transmute_float_to_int.rs3
-rw-r--r--src/tools/clippy/clippy_lints/src/transmute/transmute_int_to_float.rs3
-rw-r--r--src/tools/clippy/clippy_lints/src/transmute/transmute_num_to_bytes.rs6
-rw-r--r--src/tools/clippy/tests/ui/transmute.rs12
-rw-r--r--src/tools/clippy/tests/ui/transmute.stderr112
-rw-r--r--src/tools/clippy/tests/ui/transmute_float_to_int.fixed28
-rw-r--r--src/tools/clippy/tests/ui/transmute_float_to_int.rs12
-rw-r--r--src/tools/clippy/tests/ui/transmute_float_to_int.stderr50
-rw-r--r--src/tools/jsondoclint/src/item_kind.rs22
-rw-r--r--src/tools/jsondoclint/src/validator.rs49
-rw-r--r--src/tools/miri/src/eval.rs7
-rw-r--r--src/tools/miri/tests/pass/async-niche-aliasing.rs66
-rw-r--r--src/tools/run-make-support/src/external_deps/llvm.rs24
-rw-r--r--src/tools/rust-analyzer/crates/parser/src/lexed_str.rs7
-rw-r--r--src/tools/rustfmt/src/expr.rs12
-rw-r--r--src/tools/rustfmt/src/macros.rs6
-rw-r--r--src/tools/rustfmt/src/types.rs2
-rw-r--r--src/tools/rustfmt/tests/target/raw-lifetimes.rs15
-rw-r--r--src/tools/wasm-component-ld/README.md4
-rw-r--r--tests/assembly/asm/aarch64-modifiers.rs7
-rw-r--r--tests/assembly/asm/aarch64-types.rs13
-rw-r--r--tests/assembly/asm/arm-modifiers.rs7
-rw-r--r--tests/assembly/asm/arm-types.rs13
-rw-r--r--tests/assembly/asm/hexagon-types.rs25
-rw-r--r--tests/assembly/asm/loongarch-type.rs10
-rw-r--r--tests/assembly/asm/mips-types.rs10
-rw-r--r--tests/assembly/asm/powerpc-types.rs10
-rw-r--r--tests/assembly/asm/riscv-types.rs13
-rw-r--r--tests/assembly/asm/s390x-types.rs10
-rw-r--r--tests/assembly/asm/x86-modifiers.rs7
-rw-r--r--tests/assembly/asm/x86-types.rs13
-rw-r--r--tests/assembly/s390x-backchain-toggle.rs46
-rw-r--r--tests/assembly/targets/targets-elf.rs3
-rw-r--r--tests/codegen/naked-asan.rs22
-rw-r--r--tests/crashes/123629.rs10
-rw-r--r--tests/crashes/127033.rs18
-rw-r--r--tests/crashes/129166.rs7
-rw-r--r--tests/crashes/129372.rs52
-rw-r--r--tests/debuginfo/by-value-non-immediate-argument.rs1
-rw-r--r--tests/debuginfo/method-on-enum.rs2
-rw-r--r--tests/rustdoc-js-std/parser-errors.js9
-rw-r--r--tests/rustdoc-js-std/parser-returned.js68
-rw-r--r--tests/rustdoc-js/never-search.js7
-rw-r--r--tests/rustdoc-json/assoc_items.rs8
-rw-r--r--tests/rustdoc-json/blanket_impls.rs4
-rw-r--r--tests/rustdoc-json/enums/kind.rs4
-rw-r--r--tests/rustdoc-json/enums/struct_field_hidden.rs2
-rw-r--r--tests/rustdoc-json/enums/use_glob.rs6
-rw-r--r--tests/rustdoc-json/enums/use_variant.rs4
-rw-r--r--tests/rustdoc-json/enums/use_variant_foreign.rs2
-rw-r--r--tests/rustdoc-json/fn_pointer/generics.rs8
-rw-r--r--tests/rustdoc-json/fn_pointer/qualifiers.rs12
-rw-r--r--tests/rustdoc-json/fns/async_return.rs24
-rw-r--r--tests/rustdoc-json/fns/extern_c_variadic.rs4
-rw-r--r--tests/rustdoc-json/fns/generic_args.rs22
-rw-r--r--tests/rustdoc-json/fns/generic_returns.rs6
-rw-r--r--tests/rustdoc-json/fns/generics.rs12
-rw-r--r--tests/rustdoc-json/fns/pattern_arg.rs4
-rw-r--r--tests/rustdoc-json/fns/qualifiers.rs36
-rw-r--r--tests/rustdoc-json/fns/return_type_alias.rs2
-rw-r--r--tests/rustdoc-json/generic-associated-types/gats.rs16
-rw-r--r--tests/rustdoc-json/glob_import.rs2
-rw-r--r--tests/rustdoc-json/impl-trait-in-assoc-type.rs10
-rw-r--r--tests/rustdoc-json/impl-trait-precise-capturing.rs6
-rw-r--r--tests/rustdoc-json/impls/auto.rs2
-rw-r--r--tests/rustdoc-json/impls/foreign_for_local.rs2
-rw-r--r--tests/rustdoc-json/impls/import_from_private.rs4
-rw-r--r--tests/rustdoc-json/impls/local_for_foreign.rs2
-rw-r--r--tests/rustdoc-json/lifetime/longest.rs24
-rw-r--r--tests/rustdoc-json/lifetime/outlives.rs10
-rw-r--r--tests/rustdoc-json/methods/qualifiers.rs36
-rw-r--r--tests/rustdoc-json/nested.rs10
-rw-r--r--tests/rustdoc-json/non_lifetime_binders.rs2
-rw-r--r--tests/rustdoc-json/primitives/use_primitive.rs4
-rw-r--r--tests/rustdoc-json/reexport/extern_crate_glob.rs4
-rw-r--r--tests/rustdoc-json/reexport/glob_collision.rs8
-rw-r--r--tests/rustdoc-json/reexport/glob_empty_mod.rs2
-rw-r--r--tests/rustdoc-json/reexport/glob_extern.rs6
-rw-r--r--tests/rustdoc-json/reexport/glob_private.rs4
-rw-r--r--tests/rustdoc-json/reexport/in_root_and_mod.rs4
-rw-r--r--tests/rustdoc-json/reexport/in_root_and_mod_pub.rs4
-rw-r--r--tests/rustdoc-json/reexport/mod_not_included.rs2
-rw-r--r--tests/rustdoc-json/reexport/private_twice_one_inline.rs6
-rw-r--r--tests/rustdoc-json/reexport/private_two_names.rs8
-rw-r--r--tests/rustdoc-json/reexport/reexport_of_hidden.rs2
-rw-r--r--tests/rustdoc-json/reexport/rename_private.rs2
-rw-r--r--tests/rustdoc-json/reexport/rename_public.rs4
-rw-r--r--tests/rustdoc-json/reexport/same_name_different_types.rs8
-rw-r--r--tests/rustdoc-json/reexport/same_type_reexported_more_than_once.rs4
-rw-r--r--tests/rustdoc-json/reexport/simple_private.rs6
-rw-r--r--tests/rustdoc-json/reexport/simple_public.rs2
-rw-r--r--tests/rustdoc-json/return_private.rs2
-rw-r--r--tests/rustdoc-json/structs/plain_all_pub.rs2
-rw-r--r--tests/rustdoc-json/structs/plain_doc_hidden.rs2
-rw-r--r--tests/rustdoc-json/structs/plain_empty.rs2
-rw-r--r--tests/rustdoc-json/structs/plain_pub_priv.rs2
-rw-r--r--tests/rustdoc-json/structs/with_generics.rs2
-rw-r--r--tests/rustdoc-json/structs/with_primitives.rs2
-rw-r--r--tests/rustdoc-json/trait_alias.rs4
-rw-r--r--tests/rustdoc-json/traits/self.rs30
-rw-r--r--tests/rustdoc-json/traits/trait_alias.rs4
-rw-r--r--tests/rustdoc-json/type/dyn.rs4
-rw-r--r--tests/rustdoc-json/type/extern.rs2
-rw-r--r--tests/rustdoc-json/type/fn_lifetime.rs12
-rw-r--r--tests/rustdoc-json/type/generic_default.rs2
-rw-r--r--tests/rustdoc-json/type/hrtb.rs8
-rw-r--r--tests/rustdoc-json/type/inherent_associated_type.rs8
-rw-r--r--tests/rustdoc-json/type/inherent_associated_type_bound.rs16
-rw-r--r--tests/rustdoc-json/type/inherent_associated_type_projections.rs12
-rw-r--r--tests/rustdoc-json/type_alias.rs4
-rw-r--r--tests/rustdoc-json/unions/union.rs4
-rw-r--r--tests/ui/async-await/async-closures/tainted-body-2.rs18
-rw-r--r--tests/ui/async-await/async-closures/tainted-body-2.stderr9
-rw-r--r--tests/ui/async-await/async-closures/validate-synthetic-body.rs19
-rw-r--r--tests/ui/async-await/async-drop.rs26
-rw-r--r--tests/ui/async-await/future-sizes/async-awaiting-fut.stdout20
-rw-r--r--tests/ui/conditional-compilation/invalid-node-range-issue-129166.rs11
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-rw-r--r--tests/ui/const-generics/invariant.rs2
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-rw-r--r--tests/ui/coroutine/discriminant.rs6
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-rw-r--r--tests/ui/delegation/generics/impl-to-free-fn-pass.rs29
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-rw-r--r--tests/ui/parser/misspelled-keywords/ref.rs9
-rw-r--r--tests/ui/parser/misspelled-keywords/ref.stderr27
-rw-r--r--tests/ui/parser/misspelled-keywords/return.rs7
-rw-r--r--tests/ui/parser/misspelled-keywords/return.stderr13
-rw-r--r--tests/ui/parser/misspelled-keywords/static-mut.rs5
-rw-r--r--tests/ui/parser/misspelled-keywords/static-mut.stderr24
-rw-r--r--tests/ui/parser/misspelled-keywords/static.rs4
-rw-r--r--tests/ui/parser/misspelled-keywords/static.stderr13
-rw-r--r--tests/ui/parser/misspelled-keywords/struct.rs4
-rw-r--r--tests/ui/parser/misspelled-keywords/struct.stderr13
-rw-r--r--tests/ui/parser/misspelled-keywords/unsafe-fn.rs4
-rw-r--r--tests/ui/parser/misspelled-keywords/unsafe-fn.stderr13
-rw-r--r--tests/ui/parser/misspelled-keywords/use.rs4
-rw-r--r--tests/ui/parser/misspelled-keywords/use.stderr13
-rw-r--r--tests/ui/parser/misspelled-keywords/where-clause.rs8
-rw-r--r--tests/ui/parser/misspelled-keywords/where-clause.stderr15
-rw-r--r--tests/ui/parser/misspelled-keywords/while-loop.rs5
-rw-r--r--tests/ui/parser/misspelled-keywords/while-loop.stderr13
-rw-r--r--tests/ui/parser/misspelled-keywords/while-without-identifiers.rs4
-rw-r--r--tests/ui/parser/misspelled-keywords/while-without-identifiers.stderr8
-rw-r--r--tests/ui/proc-macro/macro-rules-derive-cfg.rs12
-rw-r--r--tests/ui/proc-macro/macro-rules-derive-cfg.stdout185
-rw-r--r--tests/ui/rust-2024/gen-kw.e2015.stderr11
-rw-r--r--tests/ui/rust-2024/gen-kw.e2018.stderr11
-rw-r--r--tests/ui/rust-2024/gen-kw.rs5
348 files changed, 4290 insertions, 2490 deletions
diff --git a/Cargo.lock b/Cargo.lock
index d6714199682..81aecf1cea7 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -4167,6 +4167,7 @@ dependencies = [
  "rustc_errors",
  "rustc_feature",
  "rustc_fluent_macro",
+ "rustc_index",
  "rustc_lexer",
  "rustc_macros",
  "rustc_session",
diff --git a/compiler/rustc_ast/src/mut_visit.rs b/compiler/rustc_ast/src/mut_visit.rs
index 8a66894a356..7c8af6c4a55 100644
--- a/compiler/rustc_ast/src/mut_visit.rs
+++ b/compiler/rustc_ast/src/mut_visit.rs
@@ -752,7 +752,7 @@ fn visit_lazy_tts<T: MutVisitor>(vis: &mut T, lazy_tts: &mut Option<LazyAttrToke
 pub fn visit_token<T: MutVisitor>(vis: &mut T, t: &mut Token) {
     let Token { kind, span } = t;
     match kind {
-        token::Ident(name, _ /*raw*/) | token::Lifetime(name) => {
+        token::Ident(name, _is_raw) | token::Lifetime(name, _is_raw) => {
             let mut ident = Ident::new(*name, *span);
             vis.visit_ident(&mut ident);
             *name = ident.name;
@@ -762,7 +762,7 @@ pub fn visit_token<T: MutVisitor>(vis: &mut T, t: &mut Token) {
         token::NtIdent(ident, _is_raw) => {
             vis.visit_ident(ident);
         }
-        token::NtLifetime(ident) => {
+        token::NtLifetime(ident, _is_raw) => {
             vis.visit_ident(ident);
         }
         token::Interpolated(nt) => {
diff --git a/compiler/rustc_ast/src/token.rs b/compiler/rustc_ast/src/token.rs
index f1dddb3acac..a0082a41713 100644
--- a/compiler/rustc_ast/src/token.rs
+++ b/compiler/rustc_ast/src/token.rs
@@ -331,11 +331,11 @@ pub enum TokenKind {
     /// Do not forget about `NtLifetime` when you want to match on lifetime identifiers.
     /// It's recommended to use `Token::(lifetime,uninterpolate,uninterpolated_span)` to
     /// treat regular and interpolated lifetime identifiers in the same way.
-    Lifetime(Symbol),
+    Lifetime(Symbol, IdentIsRaw),
     /// This identifier (and its span) is the lifetime passed to the
     /// declarative macro. The span in the surrounding `Token` is the span of
     /// the `lifetime` metavariable in the macro's RHS.
-    NtLifetime(Ident),
+    NtLifetime(Ident, IdentIsRaw),
 
     /// An embedded AST node, as produced by a macro. This only exists for
     /// historical reasons. We'd like to get rid of it, for multiple reasons.
@@ -458,7 +458,7 @@ impl Token {
     /// if they keep spans or perform edition checks.
     pub fn uninterpolated_span(&self) -> Span {
         match self.kind {
-            NtIdent(ident, _) | NtLifetime(ident) => ident.span,
+            NtIdent(ident, _) | NtLifetime(ident, _) => ident.span,
             Interpolated(ref nt) => nt.use_span(),
             _ => self.span,
         }
@@ -661,7 +661,9 @@ impl Token {
     pub fn uninterpolate(&self) -> Cow<'_, Token> {
         match self.kind {
             NtIdent(ident, is_raw) => Cow::Owned(Token::new(Ident(ident.name, is_raw), ident.span)),
-            NtLifetime(ident) => Cow::Owned(Token::new(Lifetime(ident.name), ident.span)),
+            NtLifetime(ident, is_raw) => {
+                Cow::Owned(Token::new(Lifetime(ident.name, is_raw), ident.span))
+            }
             _ => Cow::Borrowed(self),
         }
     }
@@ -679,11 +681,11 @@ impl Token {
 
     /// Returns a lifetime identifier if this token is a lifetime.
     #[inline]
-    pub fn lifetime(&self) -> Option<Ident> {
+    pub fn lifetime(&self) -> Option<(Ident, IdentIsRaw)> {
         // We avoid using `Token::uninterpolate` here because it's slow.
         match self.kind {
-            Lifetime(name) => Some(Ident::new(name, self.span)),
-            NtLifetime(ident) => Some(ident),
+            Lifetime(name, is_raw) => Some((Ident::new(name, self.span), is_raw)),
+            NtLifetime(ident, is_raw) => Some((ident, is_raw)),
             _ => None,
         }
     }
@@ -865,7 +867,7 @@ impl Token {
                 _ => return None,
             },
             SingleQuote => match joint.kind {
-                Ident(name, IdentIsRaw::No) => Lifetime(Symbol::intern(&format!("'{name}"))),
+                Ident(name, is_raw) => Lifetime(Symbol::intern(&format!("'{name}")), is_raw),
                 _ => return None,
             },
 
diff --git a/compiler/rustc_ast/src/tokenstream.rs b/compiler/rustc_ast/src/tokenstream.rs
index 057b4455dca..fc1dd2caf68 100644
--- a/compiler/rustc_ast/src/tokenstream.rs
+++ b/compiler/rustc_ast/src/tokenstream.rs
@@ -482,11 +482,11 @@ impl TokenStream {
             token::NtIdent(ident, is_raw) => {
                 TokenTree::Token(Token::new(token::Ident(ident.name, is_raw), ident.span), spacing)
             }
-            token::NtLifetime(ident) => TokenTree::Delimited(
+            token::NtLifetime(ident, is_raw) => TokenTree::Delimited(
                 DelimSpan::from_single(token.span),
                 DelimSpacing::new(Spacing::JointHidden, spacing),
                 Delimiter::Invisible,
-                TokenStream::token_alone(token::Lifetime(ident.name), ident.span),
+                TokenStream::token_alone(token::Lifetime(ident.name, is_raw), ident.span),
             ),
             token::Interpolated(ref nt) => TokenTree::Delimited(
                 DelimSpan::from_single(token.span),
diff --git a/compiler/rustc_ast_pretty/src/pprust/state.rs b/compiler/rustc_ast_pretty/src/pprust/state.rs
index c7ff39d23ed..3b1449d9a91 100644
--- a/compiler/rustc_ast_pretty/src/pprust/state.rs
+++ b/compiler/rustc_ast_pretty/src/pprust/state.rs
@@ -11,7 +11,9 @@ use std::borrow::Cow;
 use ast::TraitBoundModifiers;
 use rustc_ast::attr::AttrIdGenerator;
 use rustc_ast::ptr::P;
-use rustc_ast::token::{self, BinOpToken, CommentKind, Delimiter, Nonterminal, Token, TokenKind};
+use rustc_ast::token::{
+    self, BinOpToken, CommentKind, Delimiter, IdentIsRaw, Nonterminal, Token, TokenKind,
+};
 use rustc_ast::tokenstream::{Spacing, TokenStream, TokenTree};
 use rustc_ast::util::classify;
 use rustc_ast::util::comments::{Comment, CommentStyle};
@@ -947,8 +949,13 @@ pub trait PrintState<'a>: std::ops::Deref<Target = pp::Printer> + std::ops::Dere
             token::NtIdent(ident, is_raw) => {
                 IdentPrinter::for_ast_ident(ident, is_raw.into()).to_string().into()
             }
-            token::Lifetime(name) => name.to_string().into(),
-            token::NtLifetime(ident) => ident.name.to_string().into(),
+
+            token::Lifetime(name, IdentIsRaw::No)
+            | token::NtLifetime(Ident { name, .. }, IdentIsRaw::No) => name.to_string().into(),
+            token::Lifetime(name, IdentIsRaw::Yes)
+            | token::NtLifetime(Ident { name, .. }, IdentIsRaw::Yes) => {
+                format!("'r#{}", &name.as_str()[1..]).into()
+            }
 
             /* Other */
             token::DocComment(comment_kind, attr_style, data) => {
diff --git a/compiler/rustc_codegen_gcc/Cargo.lock b/compiler/rustc_codegen_gcc/Cargo.lock
index 915229f7e7e..0eb264f99eb 100644
--- a/compiler/rustc_codegen_gcc/Cargo.lock
+++ b/compiler/rustc_codegen_gcc/Cargo.lock
@@ -12,63 +12,12 @@ dependencies = [
 ]
 
 [[package]]
-name = "bitflags"
-version = "1.3.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
-
-[[package]]
-name = "bitflags"
-version = "2.4.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b4682ae6287fcf752ecaabbfcc7b6f9b72aa33933dc23a554d853aea8eea8635"
-
-[[package]]
 name = "boml"
 version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "85fdb93f04c73bff54305fa437ffea5449c41edcaadfe882f35836206b166ac5"
 
 [[package]]
-name = "cc"
-version = "1.0.79"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "50d30906286121d95be3d479533b458f87493b30a4b5f79a607db8f5d11aa91f"
-
-[[package]]
-name = "cfg-if"
-version = "1.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
-
-[[package]]
-name = "errno"
-version = "0.3.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4bcfec3a70f97c962c307b2d2c56e358cf1d00b558d74262b5f929ee8cc7e73a"
-dependencies = [
- "errno-dragonfly",
- "libc",
- "windows-sys",
-]
-
-[[package]]
-name = "errno-dragonfly"
-version = "0.1.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "aa68f1b12764fab894d2755d2518754e71b4fd80ecfb822714a1206c2aab39bf"
-dependencies = [
- "cc",
- "libc",
-]
-
-[[package]]
-name = "fastrand"
-version = "2.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6999dc1837253364c2ebb0704ba97994bd874e8f195d665c50b7548f6ea92764"
-
-[[package]]
 name = "fm"
 version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -133,12 +82,6 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "89d92a4743f9a61002fae18374ed11e7973f530cb3a3255fb354818118b2203c"
 
 [[package]]
-name = "linux-raw-sys"
-version = "0.4.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "57bcfdad1b858c2db7c38303a6d2ad4dfaf5eb53dfeb0910128b2c26d6158503"
-
-[[package]]
 name = "memchr"
 version = "2.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -155,24 +98,6 @@ dependencies = [
 ]
 
 [[package]]
-name = "object"
-version = "0.30.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "03b4680b86d9cfafba8fc491dc9b6df26b68cf40e9e6cd73909194759a63c385"
-dependencies = [
- "memchr",
-]
-
-[[package]]
-name = "redox_syscall"
-version = "0.3.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "567664f262709473930a4bf9e51bf2ebf3348f2e748ccc50dea20646858f8f29"
-dependencies = [
- "bitflags 1.3.2",
-]
-
-[[package]]
 name = "regex"
 version = "1.8.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -196,22 +121,6 @@ dependencies = [
  "boml",
  "gccjit",
  "lang_tester",
- "object",
- "smallvec",
- "tempfile",
-]
-
-[[package]]
-name = "rustix"
-version = "0.38.8"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "19ed4fa021d81c8392ce04db050a3da9a60299050b7ae1cf482d862b54a7218f"
-dependencies = [
- "bitflags 2.4.0",
- "errno",
- "libc",
- "linux-raw-sys",
- "windows-sys",
 ]
 
 [[package]]
@@ -224,25 +133,6 @@ dependencies = [
 ]
 
 [[package]]
-name = "smallvec"
-version = "1.10.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a507befe795404456341dfab10cef66ead4c041f62b8b11bbb92bffe5d0953e0"
-
-[[package]]
-name = "tempfile"
-version = "3.7.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dc02fddf48964c42031a0b3fe0428320ecf3a73c401040fc0096f97794310651"
-dependencies = [
- "cfg-if",
- "fastrand",
- "redox_syscall",
- "rustix",
- "windows-sys",
-]
-
-[[package]]
 name = "termcolor"
 version = "1.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -315,69 +205,3 @@ name = "winapi-x86_64-pc-windows-gnu"
 version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
-
-[[package]]
-name = "windows-sys"
-version = "0.48.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "677d2418bec65e3338edb076e806bc1ec15693c5d0104683f2efe857f61056a9"
-dependencies = [
- "windows-targets",
-]
-
-[[package]]
-name = "windows-targets"
-version = "0.48.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "05d4b17490f70499f20b9e791dcf6a299785ce8af4d709018206dc5b4953e95f"
-dependencies = [
- "windows_aarch64_gnullvm",
- "windows_aarch64_msvc",
- "windows_i686_gnu",
- "windows_i686_msvc",
- "windows_x86_64_gnu",
- "windows_x86_64_gnullvm",
- "windows_x86_64_msvc",
-]
-
-[[package]]
-name = "windows_aarch64_gnullvm"
-version = "0.48.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "91ae572e1b79dba883e0d315474df7305d12f569b400fcf90581b06062f7e1bc"
-
-[[package]]
-name = "windows_aarch64_msvc"
-version = "0.48.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b2ef27e0d7bdfcfc7b868b317c1d32c641a6fe4629c171b8928c7b08d98d7cf3"
-
-[[package]]
-name = "windows_i686_gnu"
-version = "0.48.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "622a1962a7db830d6fd0a69683c80a18fda201879f0f447f065a3b7467daa241"
-
-[[package]]
-name = "windows_i686_msvc"
-version = "0.48.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4542c6e364ce21bf45d69fdd2a8e455fa38d316158cfd43b3ac1c5b1b19f8e00"
-
-[[package]]
-name = "windows_x86_64_gnu"
-version = "0.48.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ca2b8a661f7628cbd23440e50b05d705db3686f894fc9580820623656af974b1"
-
-[[package]]
-name = "windows_x86_64_gnullvm"
-version = "0.48.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7896dbc1f41e08872e9d5e8f8baa8fdd2677f29468c4e156210174edc7f7b953"
-
-[[package]]
-name = "windows_x86_64_msvc"
-version = "0.48.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1a515f5799fe4961cb532f983ce2b23082366b898e52ffbce459c86f67c8378a"
diff --git a/compiler/rustc_codegen_gcc/Cargo.toml b/compiler/rustc_codegen_gcc/Cargo.toml
index 5caca63f634..44fb5eef04a 100644
--- a/compiler/rustc_codegen_gcc/Cargo.toml
+++ b/compiler/rustc_codegen_gcc/Cargo.toml
@@ -23,21 +23,11 @@ default = ["master"]
 
 [dependencies]
 gccjit = "2.1"
-
 # Local copy.
 #gccjit = { path = "../gccjit.rs" }
 
-object = { version = "0.30.1", default-features = false, features = [
-    "std",
-    "read",
-] }
-smallvec = { version = "1.6.1", features = ["union", "may_dangle"] }
-# TODO(antoyo): make tempfile optional.
-tempfile = "3.7.1"
-
 [dev-dependencies]
 lang_tester = "0.8.0"
-tempfile = "3.1.0"
 boml = "0.3.1"
 
 [profile.dev]
diff --git a/compiler/rustc_codegen_gcc/src/lib.rs b/compiler/rustc_codegen_gcc/src/lib.rs
index 94f016234f9..4de671ac4a0 100644
--- a/compiler/rustc_codegen_gcc/src/lib.rs
+++ b/compiler/rustc_codegen_gcc/src/lib.rs
@@ -24,6 +24,14 @@
 #![deny(clippy::pattern_type_mismatch)]
 #![allow(clippy::needless_lifetimes)]
 
+// Some "regular" crates we want to share with rustc
+extern crate object;
+extern crate smallvec;
+extern crate tempfile;
+#[macro_use]
+extern crate tracing;
+
+// The rustc crates we need
 extern crate rustc_apfloat;
 extern crate rustc_ast;
 extern crate rustc_attr;
@@ -42,8 +50,6 @@ extern crate rustc_middle;
 extern crate rustc_session;
 extern crate rustc_span;
 extern crate rustc_target;
-#[macro_use]
-extern crate tracing;
 
 // This prevents duplicating functions and statics that are already part of the host rustc process.
 #[allow(unused_extern_crates)]
diff --git a/compiler/rustc_codegen_llvm/src/attributes.rs b/compiler/rustc_codegen_llvm/src/attributes.rs
index 92a857c2adc..9d4497d73a8 100644
--- a/compiler/rustc_codegen_llvm/src/attributes.rs
+++ b/compiler/rustc_codegen_llvm/src/attributes.rs
@@ -411,26 +411,31 @@ pub(crate) fn llfn_attrs_from_instance<'ll, 'tcx>(
             // the string "false". Now it is disabled by absence of the attribute.
             to_add.push(llvm::CreateAttrStringValue(cx.llcx, "branch-target-enforcement", "false"));
         }
-    } else if llvm_util::get_version() >= (19, 0, 0) {
-        // For non-naked functions, set branch protection attributes on aarch64.
-        if let Some(BranchProtection { bti, pac_ret }) =
-            cx.sess().opts.unstable_opts.branch_protection
-        {
-            assert!(cx.sess().target.arch == "aarch64");
-            if bti {
-                to_add.push(llvm::CreateAttrString(cx.llcx, "branch-target-enforcement"));
-            }
-            if let Some(PacRet { leaf, key }) = pac_ret {
-                to_add.push(llvm::CreateAttrStringValue(
-                    cx.llcx,
-                    "sign-return-address",
-                    if leaf { "all" } else { "non-leaf" },
-                ));
-                to_add.push(llvm::CreateAttrStringValue(
-                    cx.llcx,
-                    "sign-return-address-key",
-                    if key == PAuthKey::A { "a_key" } else { "b_key" },
-                ));
+    } else {
+        // Do not set sanitizer attributes for naked functions.
+        to_add.extend(sanitize_attrs(cx, codegen_fn_attrs.no_sanitize));
+
+        if llvm_util::get_version() >= (19, 0, 0) {
+            // For non-naked functions, set branch protection attributes on aarch64.
+            if let Some(BranchProtection { bti, pac_ret }) =
+                cx.sess().opts.unstable_opts.branch_protection
+            {
+                assert!(cx.sess().target.arch == "aarch64");
+                if bti {
+                    to_add.push(llvm::CreateAttrString(cx.llcx, "branch-target-enforcement"));
+                }
+                if let Some(PacRet { leaf, key }) = pac_ret {
+                    to_add.push(llvm::CreateAttrStringValue(
+                        cx.llcx,
+                        "sign-return-address",
+                        if leaf { "all" } else { "non-leaf" },
+                    ));
+                    to_add.push(llvm::CreateAttrStringValue(
+                        cx.llcx,
+                        "sign-return-address-key",
+                        if key == PAuthKey::A { "a_key" } else { "b_key" },
+                    ));
+                }
             }
         }
     }
@@ -485,7 +490,6 @@ pub(crate) fn llfn_attrs_from_instance<'ll, 'tcx>(
     if let Some(backchain) = backchain_attr(cx) {
         to_add.push(backchain);
     }
-    to_add.extend(sanitize_attrs(cx, codegen_fn_attrs.no_sanitize));
     to_add.extend(patchable_function_entry_attrs(cx, codegen_fn_attrs.patchable_function_entry));
 
     // Always annotate functions with the target-cpu they are compiled for.
diff --git a/compiler/rustc_codegen_llvm/src/lib.rs b/compiler/rustc_codegen_llvm/src/lib.rs
index 6a303e1e602..7f26bbd7f87 100644
--- a/compiler/rustc_codegen_llvm/src/lib.rs
+++ b/compiler/rustc_codegen_llvm/src/lib.rs
@@ -6,7 +6,6 @@
 
 // tidy-alphabetical-start
 #![allow(internal_features)]
-#![cfg_attr(bootstrap, feature(unsafe_extern_blocks))]
 #![doc(html_root_url = "https://doc.rust-lang.org/nightly/nightly-rustc/")]
 #![doc(rust_logo)]
 #![feature(assert_matches)]
diff --git a/compiler/rustc_codegen_llvm/src/llvm_util.rs b/compiler/rustc_codegen_llvm/src/llvm_util.rs
index 618602ed70f..d55220ba5c3 100644
--- a/compiler/rustc_codegen_llvm/src/llvm_util.rs
+++ b/compiler/rustc_codegen_llvm/src/llvm_util.rs
@@ -353,9 +353,7 @@ pub fn target_features(sess: &Session, allow_unstable: bool) -> Vec<Symbol> {
                 None
             }
         })
-        .filter(|feature| {
-            RUSTC_SPECIAL_FEATURES.contains(feature) || features.contains(&Symbol::intern(feature))
-        })
+        .filter(|feature| features.contains(&Symbol::intern(feature)))
         .map(|feature| Symbol::intern(feature))
         .collect()
 }
diff --git a/compiler/rustc_driver_impl/src/lib.rs b/compiler/rustc_driver_impl/src/lib.rs
index e7d0fab3f0d..1b7ca61cee8 100644
--- a/compiler/rustc_driver_impl/src/lib.rs
+++ b/compiler/rustc_driver_impl/src/lib.rs
@@ -7,7 +7,6 @@
 // tidy-alphabetical-start
 #![allow(internal_features)]
 #![allow(rustc::untranslatable_diagnostic)] // FIXME: make this translatable
-#![cfg_attr(bootstrap, feature(unsafe_extern_blocks))]
 #![doc(html_root_url = "https://doc.rust-lang.org/nightly/nightly-rustc/")]
 #![doc(rust_logo)]
 #![feature(decl_macro)]
diff --git a/compiler/rustc_expand/src/mbe/macro_parser.rs b/compiler/rustc_expand/src/mbe/macro_parser.rs
index 9011d02da33..501a2417fcf 100644
--- a/compiler/rustc_expand/src/mbe/macro_parser.rs
+++ b/compiler/rustc_expand/src/mbe/macro_parser.rs
@@ -398,8 +398,10 @@ pub(crate) enum NamedMatch {
 fn token_name_eq(t1: &Token, t2: &Token) -> bool {
     if let (Some((ident1, is_raw1)), Some((ident2, is_raw2))) = (t1.ident(), t2.ident()) {
         ident1.name == ident2.name && is_raw1 == is_raw2
-    } else if let (Some(ident1), Some(ident2)) = (t1.lifetime(), t2.lifetime()) {
-        ident1.name == ident2.name
+    } else if let (Some((ident1, is_raw1)), Some((ident2, is_raw2))) =
+        (t1.lifetime(), t2.lifetime())
+    {
+        ident1.name == ident2.name && is_raw1 == is_raw2
     } else {
         t1.kind == t2.kind
     }
diff --git a/compiler/rustc_expand/src/mbe/transcribe.rs b/compiler/rustc_expand/src/mbe/transcribe.rs
index b06910595bb..39489a8df1b 100644
--- a/compiler/rustc_expand/src/mbe/transcribe.rs
+++ b/compiler/rustc_expand/src/mbe/transcribe.rs
@@ -283,9 +283,9 @@ pub(super) fn transcribe<'a>(
                             let kind = token::NtIdent(*ident, *is_raw);
                             TokenTree::token_alone(kind, sp)
                         }
-                        MatchedSingle(ParseNtResult::Lifetime(ident)) => {
+                        MatchedSingle(ParseNtResult::Lifetime(ident, is_raw)) => {
                             marker.visit_span(&mut sp);
-                            let kind = token::NtLifetime(*ident);
+                            let kind = token::NtLifetime(*ident, *is_raw);
                             TokenTree::token_alone(kind, sp)
                         }
                         MatchedSingle(ParseNtResult::Nt(nt)) => {
diff --git a/compiler/rustc_expand/src/proc_macro_server.rs b/compiler/rustc_expand/src/proc_macro_server.rs
index 4ff5da1a4bd..5798bcedc22 100644
--- a/compiler/rustc_expand/src/proc_macro_server.rs
+++ b/compiler/rustc_expand/src/proc_macro_server.rs
@@ -229,15 +229,16 @@ impl FromInternal<(TokenStream, &mut Rustc<'_, '_>)> for Vec<TokenTree<TokenStre
                     span: ident.span,
                 })),
 
-                Lifetime(name) => {
+                Lifetime(name, is_raw) => {
                     let ident = symbol::Ident::new(name, span).without_first_quote();
                     trees.extend([
                         TokenTree::Punct(Punct { ch: b'\'', joint: true, span }),
-                        TokenTree::Ident(Ident { sym: ident.name, is_raw: false, span }),
+                        TokenTree::Ident(Ident { sym: ident.name, is_raw: is_raw.into(), span }),
                     ]);
                 }
-                NtLifetime(ident) => {
-                    let stream = TokenStream::token_alone(token::Lifetime(ident.name), ident.span);
+                NtLifetime(ident, is_raw) => {
+                    let stream =
+                        TokenStream::token_alone(token::Lifetime(ident.name, is_raw), ident.span);
                     trees.push(TokenTree::Group(Group {
                         delimiter: pm::Delimiter::None,
                         stream: Some(stream),
diff --git a/compiler/rustc_feature/src/accepted.rs b/compiler/rustc_feature/src/accepted.rs
index 9223c3c322a..8949fdffdae 100644
--- a/compiler/rustc_feature/src/accepted.rs
+++ b/compiler/rustc_feature/src/accepted.rs
@@ -61,7 +61,7 @@ declare_features! (
     /// Allows explicit discriminants on non-unit enum variants.
     (accepted, arbitrary_enum_discriminant, "1.66.0", Some(60553)),
     /// Allows using `const` operands in inline assembly.
-    (accepted, asm_const, "CURRENT_RUSTC_VERSION", Some(93332)),
+    (accepted, asm_const, "1.82.0", Some(93332)),
     /// Allows using `sym` operands in inline assembly.
     (accepted, asm_sym, "1.66.0", Some(93333)),
     /// Allows the definition of associated constants in `trait` or `impl` blocks.
@@ -116,7 +116,7 @@ declare_features! (
     /// Allows calling constructor functions in `const fn`.
     (accepted, const_constructor, "1.40.0", Some(61456)),
     /// Allows basic arithmetic on floating point types in a `const fn`.
-    (accepted, const_fn_floating_point_arithmetic, "CURRENT_RUSTC_VERSION", Some(57241)),
+    (accepted, const_fn_floating_point_arithmetic, "1.82.0", Some(57241)),
     /// Allows using and casting function pointers in a `const fn`.
     (accepted, const_fn_fn_ptr_basics, "1.61.0", Some(57563)),
     /// Allows trait bounds in `const fn`.
@@ -272,7 +272,7 @@ declare_features! (
     /// Allows calling `const unsafe fn` inside `unsafe` blocks in `const fn` functions.
     (accepted, min_const_unsafe_fn, "1.33.0", Some(55607)),
     /// Allows exhaustive pattern matching on uninhabited types when matched by value.
-    (accepted, min_exhaustive_patterns, "CURRENT_RUSTC_VERSION", Some(119612)),
+    (accepted, min_exhaustive_patterns, "1.82.0", Some(119612)),
     /// Allows using `Self` and associated types in struct expressions and patterns.
     (accepted, more_struct_aliases, "1.16.0", Some(37544)),
     /// Allows using the MOVBE target feature.
@@ -299,7 +299,7 @@ declare_features! (
     /// Allows `foo.rs` as an alternative to `foo/mod.rs`.
     (accepted, non_modrs_mods, "1.30.0", Some(44660)),
     /// Allows using multiple nested field accesses in offset_of!
-    (accepted, offset_of_nested, "CURRENT_RUSTC_VERSION", Some(120140)),
+    (accepted, offset_of_nested, "1.82.0", Some(120140)),
     /// Allows the use of or-patterns (e.g., `0 | 1`).
     (accepted, or_patterns, "1.53.0", Some(54883)),
     /// Allows using `+bundle,+whole-archive` link modifiers with native libs.
@@ -312,7 +312,7 @@ declare_features! (
     /// Allows parentheses in patterns.
     (accepted, pattern_parentheses, "1.31.0", Some(51087)),
     /// Allows `use<'a, 'b, A, B>` in `impl Trait + use<...>` for precise capture of generic args.
-    (accepted, precise_capturing, "CURRENT_RUSTC_VERSION", Some(123432)),
+    (accepted, precise_capturing, "1.82.0", Some(123432)),
     /// Allows procedural macros in `proc-macro` crates.
     (accepted, proc_macro, "1.29.0", Some(38356)),
     /// Allows multi-segment paths in attributes and derives.
@@ -326,7 +326,7 @@ declare_features! (
     /// Allows keywords to be escaped for use as identifiers.
     (accepted, raw_identifiers, "1.30.0", Some(48589)),
     /// Allows `&raw const $place_expr` and `&raw mut $place_expr` expressions.
-    (accepted, raw_ref_op, "CURRENT_RUSTC_VERSION", Some(64490)),
+    (accepted, raw_ref_op, "1.82.0", Some(64490)),
     /// Allows relaxing the coherence rules such that
     /// `impl<T> ForeignTrait<LocalType> for ForeignType<T>` is permitted.
     (accepted, re_rebalance_coherence, "1.41.0", Some(55437)),
@@ -399,11 +399,11 @@ declare_features! (
     /// Allows arbitrary delimited token streams in non-macro attributes.
     (accepted, unrestricted_attribute_tokens, "1.34.0", Some(55208)),
     /// Allows unsafe attributes.
-    (accepted, unsafe_attributes, "CURRENT_RUSTC_VERSION", Some(123757)),
+    (accepted, unsafe_attributes, "1.82.0", Some(123757)),
     /// The `unsafe_op_in_unsafe_fn` lint (allowed by default): no longer treat an unsafe function as an unsafe block.
     (accepted, unsafe_block_in_unsafe_fn, "1.52.0", Some(71668)),
     /// Allows unsafe on extern declarations and safety qualifiers over internal items.
-    (accepted, unsafe_extern_blocks, "CURRENT_RUSTC_VERSION", Some(123743)),
+    (accepted, unsafe_extern_blocks, "1.82.0", Some(123743)),
     /// Allows importing and reexporting macros with `use`,
     /// enables macro modularization in general.
     (accepted, use_extern_macros, "1.30.0", Some(35896)),
diff --git a/compiler/rustc_feature/src/builtin_attrs.rs b/compiler/rustc_feature/src/builtin_attrs.rs
index e86421f2150..3b7e0d82d0f 100644
--- a/compiler/rustc_feature/src/builtin_attrs.rs
+++ b/compiler/rustc_feature/src/builtin_attrs.rs
@@ -1186,3 +1186,11 @@ pub static BUILTIN_ATTRIBUTE_MAP: LazyLock<FxHashMap<Symbol, &BuiltinAttribute>>
         }
         map
     });
+
+pub fn is_stable_diagnostic_attribute(sym: Symbol, features: &Features) -> bool {
+    match sym {
+        sym::on_unimplemented => true,
+        sym::do_not_recommend => features.do_not_recommend,
+        _ => false,
+    }
+}
diff --git a/compiler/rustc_feature/src/lib.rs b/compiler/rustc_feature/src/lib.rs
index adaaba3cd23..fe12930e6b9 100644
--- a/compiler/rustc_feature/src/lib.rs
+++ b/compiler/rustc_feature/src/lib.rs
@@ -130,8 +130,9 @@ pub fn find_feature_issue(feature: Symbol, issue: GateIssue) -> Option<NonZero<u
 pub use accepted::ACCEPTED_FEATURES;
 pub use builtin_attrs::{
     deprecated_attributes, encode_cross_crate, find_gated_cfg, is_builtin_attr_name,
-    is_valid_for_get_attr, AttributeDuplicates, AttributeGate, AttributeSafety, AttributeTemplate,
-    AttributeType, BuiltinAttribute, GatedCfg, BUILTIN_ATTRIBUTES, BUILTIN_ATTRIBUTE_MAP,
+    is_stable_diagnostic_attribute, is_valid_for_get_attr, AttributeDuplicates, AttributeGate,
+    AttributeSafety, AttributeTemplate, AttributeType, BuiltinAttribute, GatedCfg,
+    BUILTIN_ATTRIBUTES, BUILTIN_ATTRIBUTE_MAP,
 };
 pub use removed::REMOVED_FEATURES;
 pub use unstable::{Features, INCOMPATIBLE_FEATURES, UNSTABLE_FEATURES};
diff --git a/compiler/rustc_feature/src/removed.rs b/compiler/rustc_feature/src/removed.rs
index b7f0ed5afce..3d7d877ba17 100644
--- a/compiler/rustc_feature/src/removed.rs
+++ b/compiler/rustc_feature/src/removed.rs
@@ -83,7 +83,7 @@ declare_features! (
     (removed, custom_derive, "1.32.0", Some(29644),
      Some("subsumed by `#[proc_macro_derive]`")),
     /// Allows default type parameters to influence type inference.
-    (removed, default_type_parameter_fallback, "CURRENT_RUSTC_VERSION", Some(27336),
+    (removed, default_type_parameter_fallback, "1.82.0", Some(27336),
      Some("never properly implemented; requires significant design work")),
     /// Allows using `#[doc(keyword = "...")]`.
     (removed, doc_keyword, "1.28.0", Some(51315),
diff --git a/compiler/rustc_feature/src/unstable.rs b/compiler/rustc_feature/src/unstable.rs
index fba65883550..3254dab9a03 100644
--- a/compiler/rustc_feature/src/unstable.rs
+++ b/compiler/rustc_feature/src/unstable.rs
@@ -208,7 +208,7 @@ declare_features! (
     /// Allows `#[link(..., cfg(..))]`; perma-unstable per #37406
     (unstable, link_cfg, "1.14.0", None),
     /// Allows using `?Trait` trait bounds in more contexts.
-    (internal, more_maybe_bounds, "CURRENT_RUSTC_VERSION", None),
+    (internal, more_maybe_bounds, "1.82.0", None),
     /// Allows the `multiple_supertrait_upcastable` lint.
     (unstable, multiple_supertrait_upcastable, "1.69.0", None),
     /// Allow negative trait bounds. This is an internal-only feature for testing the trait solver!
@@ -302,7 +302,7 @@ declare_features! (
     // FIXME: Document these and merge with the list below.
 
     // Unstable `#[target_feature]` directives.
-    (unstable, aarch64_unstable_target_feature, "CURRENT_RUSTC_VERSION", Some(44839)),
+    (unstable, aarch64_unstable_target_feature, "1.82.0", Some(44839)),
     (unstable, aarch64_ver_target_feature, "1.27.0", Some(44839)),
     (unstable, arm_target_feature, "1.27.0", Some(44839)),
     (unstable, avx512_target_feature, "1.27.0", Some(44839)),
@@ -317,7 +317,7 @@ declare_features! (
     (unstable, prfchw_target_feature, "1.78.0", Some(44839)),
     (unstable, riscv_target_feature, "1.45.0", Some(44839)),
     (unstable, rtm_target_feature, "1.35.0", Some(44839)),
-    (unstable, s390x_target_feature, "CURRENT_RUSTC_VERSION", Some(44839)),
+    (unstable, s390x_target_feature, "1.82.0", Some(44839)),
     (unstable, sse4a_target_feature, "1.27.0", Some(44839)),
     (unstable, tbm_target_feature, "1.27.0", Some(44839)),
     (unstable, wasm_target_feature, "1.30.0", Some(44839)),
@@ -474,7 +474,7 @@ declare_features! (
     /// Allows the use of `#[ffi_pure]` on foreign functions.
     (unstable, ffi_pure, "1.45.0", Some(58329)),
     /// Controlling the behavior of fmt::Debug
-    (unstable, fmt_debug, "CURRENT_RUSTC_VERSION", Some(129709)),
+    (unstable, fmt_debug, "1.82.0", Some(129709)),
     /// Allows using `#[repr(align(...))]` on function items
     (unstable, fn_align, "1.53.0", Some(82232)),
     /// Support delegating implementation of functions to other already implemented functions.
@@ -586,8 +586,8 @@ declare_features! (
     /// Allows `extern "rust-cold"`.
     (unstable, rust_cold_cc, "1.63.0", Some(97544)),
     /// Allows use of x86 SHA512, SM3 and SM4 target-features and intrinsics
-    (unstable, sha512_sm_x86, "CURRENT_RUSTC_VERSION", Some(126624)),
-    /// Shorten the tail expression lifetime
+    (unstable, sha512_sm_x86, "1.82.0", Some(126624)),
+    /// Shortern the tail expression lifetime
     (unstable, shorter_tail_lifetimes, "1.79.0", Some(123739)),
     /// Allows the use of SIMD types in functions declared in `extern` blocks.
     (unstable, simd_ffi, "1.0.0", Some(27731)),
@@ -625,7 +625,7 @@ declare_features! (
     (incomplete, unnamed_fields, "1.74.0", Some(49804)),
     /// Allows const generic parameters to be defined with types that
     /// are not `Sized`, e.g. `fn foo<const N: [u8]>() {`.
-    (incomplete, unsized_const_params, "CURRENT_RUSTC_VERSION", Some(95174)),
+    (incomplete, unsized_const_params, "1.82.0", Some(95174)),
     /// Allows unsized fn parameters.
     (internal, unsized_fn_params, "1.49.0", Some(48055)),
     /// Allows unsized rvalues at arguments and parameters.
diff --git a/compiler/rustc_hir_analysis/src/collect.rs b/compiler/rustc_hir_analysis/src/collect.rs
index 92111805ab4..ac9976148e2 100644
--- a/compiler/rustc_hir_analysis/src/collect.rs
+++ b/compiler/rustc_hir_analysis/src/collect.rs
@@ -1698,8 +1698,6 @@ fn impl_trait_header(tcx: TyCtxt<'_>, def_id: LocalDefId) -> Option<ty::ImplTrai
             trait_ref: ty::EarlyBinder::bind(trait_ref),
             safety: impl_.safety,
             polarity: polarity_of_impl(tcx, def_id, impl_, item.span),
-            do_not_recommend: tcx.features().do_not_recommend
-                && tcx.has_attrs_with_path(def_id, &[sym::diagnostic, sym::do_not_recommend]),
         }
     })
 }
diff --git a/compiler/rustc_hir_analysis/src/collect/generics_of.rs b/compiler/rustc_hir_analysis/src/collect/generics_of.rs
index be6c3f048dc..ba01ea3f512 100644
--- a/compiler/rustc_hir_analysis/src/collect/generics_of.rs
+++ b/compiler/rustc_hir_analysis/src/collect/generics_of.rs
@@ -59,6 +59,12 @@ pub(super) fn generics_of(tcx: TyCtxt<'_>, def_id: LocalDefId) -> ty::Generics {
     let hir_id = tcx.local_def_id_to_hir_id(def_id);
 
     let node = tcx.hir_node(hir_id);
+    if let Some(sig) = node.fn_sig()
+        && let Some(sig_id) = sig.decl.opt_delegation_sig_id()
+    {
+        return inherit_generics_for_delegation_item(tcx, def_id, sig_id);
+    }
+
     let parent_def_id = match node {
         Node::ImplItem(_)
         | Node::TraitItem(_)
@@ -229,16 +235,6 @@ pub(super) fn generics_of(tcx: TyCtxt<'_>, def_id: LocalDefId) -> ty::Generics {
                 // inherit the generics of the item.
                 Some(parent.to_def_id())
             }
-            ItemKind::Fn(sig, _, _) => {
-                // For a delegation item inherit generics from callee.
-                if let Some(sig_id) = sig.decl.opt_delegation_sig_id()
-                    && let Some(generics) =
-                        inherit_generics_for_delegation_item(tcx, def_id, sig_id)
-                {
-                    return generics;
-                }
-                None
-            }
             _ => None,
         },
         _ => None,
diff --git a/compiler/rustc_hir_analysis/src/collect/predicates_of.rs b/compiler/rustc_hir_analysis/src/collect/predicates_of.rs
index a47aaf25e95..7243e85ce98 100644
--- a/compiler/rustc_hir_analysis/src/collect/predicates_of.rs
+++ b/compiler/rustc_hir_analysis/src/collect/predicates_of.rs
@@ -138,6 +138,12 @@ fn gather_explicit_predicates_of(tcx: TyCtxt<'_>, def_id: LocalDefId) -> ty::Gen
     let hir_id = tcx.local_def_id_to_hir_id(def_id);
     let node = tcx.hir_node(hir_id);
 
+    if let Some(sig) = node.fn_sig()
+        && let Some(sig_id) = sig.decl.opt_delegation_sig_id()
+    {
+        return inherit_predicates_for_delegation_item(tcx, def_id, sig_id);
+    }
+
     let mut is_trait = None;
     let mut is_default_impl_trait = None;
 
@@ -164,16 +170,6 @@ fn gather_explicit_predicates_of(tcx: TyCtxt<'_>, def_id: LocalDefId) -> ty::Gen
             ItemKind::Trait(_, _, _, self_bounds, ..) | ItemKind::TraitAlias(_, self_bounds) => {
                 is_trait = Some(self_bounds);
             }
-
-            ItemKind::Fn(sig, _, _) => {
-                // For a delegation item inherit predicates from callee.
-                if let Some(sig_id) = sig.decl.opt_delegation_sig_id()
-                    && let Some(predicates) =
-                        inherit_predicates_for_delegation_item(tcx, def_id, sig_id)
-                {
-                    return predicates;
-                }
-            }
             _ => {}
         }
     };
diff --git a/compiler/rustc_hir_analysis/src/delegation.rs b/compiler/rustc_hir_analysis/src/delegation.rs
index 20aaa43219f..2c9f20b7840 100644
--- a/compiler/rustc_hir_analysis/src/delegation.rs
+++ b/compiler/rustc_hir_analysis/src/delegation.rs
@@ -1,3 +1,7 @@
+//! Support inheriting generic parameters and predicates for function delegation.
+//!
+//! For more information about delegation design, see the tracking issue #118212.
+
 use std::assert_matches::debug_assert_matches;
 
 use rustc_data_structures::fx::FxHashMap;
@@ -5,7 +9,7 @@ use rustc_hir::def::DefKind;
 use rustc_hir::def_id::{DefId, LocalDefId};
 use rustc_middle::ty::fold::{TypeFoldable, TypeFolder, TypeSuperFoldable};
 use rustc_middle::ty::{self, Ty, TyCtxt};
-use rustc_span::ErrorGuaranteed;
+use rustc_span::{ErrorGuaranteed, Span};
 use rustc_type_ir::visit::TypeVisitableExt;
 
 type RemapTable = FxHashMap<u32, u32>;
@@ -76,127 +80,381 @@ fn fn_kind<'tcx>(tcx: TyCtxt<'tcx>, def_id: DefId) -> FnKind {
     }
 }
 
+/// Given the current context(caller and callee `FnKind`), it specifies
+/// the policy of predicates and generic parameters inheritance.
+#[derive(Clone, Copy, Debug, PartialEq)]
+enum InheritanceKind {
+    /// Copying all predicates and parameters, including those of the parent
+    /// container.
+    ///
+    /// Boolean value defines whether the `Self` parameter or `Self: Trait`
+    /// predicate are copied. It's always equal to `false` except when
+    /// delegating from a free function to a trait method.
+    ///
+    /// FIXME(fn_delegation): This often leads to type inference
+    /// errors. Support providing generic arguments or restrict use sites.
+    WithParent(bool),
+    /// The trait implementation should be compatible with the original trait.
+    /// Therefore, for trait implementations only the method's own parameters
+    /// and predicates are copied.
+    Own,
+}
+
+struct GenericsBuilder<'tcx> {
+    tcx: TyCtxt<'tcx>,
+    sig_id: DefId,
+    parent: Option<DefId>,
+    inh_kind: InheritanceKind,
+}
+
+impl<'tcx> GenericsBuilder<'tcx> {
+    fn new(tcx: TyCtxt<'tcx>, sig_id: DefId) -> GenericsBuilder<'tcx> {
+        GenericsBuilder { tcx, sig_id, parent: None, inh_kind: InheritanceKind::WithParent(false) }
+    }
+
+    fn with_parent(mut self, parent: DefId) -> Self {
+        self.parent = Some(parent);
+        self
+    }
+
+    fn with_inheritance_kind(mut self, inh_kind: InheritanceKind) -> Self {
+        self.inh_kind = inh_kind;
+        self
+    }
+
+    fn build(self) -> ty::Generics {
+        let mut own_params = vec![];
+
+        let sig_generics = self.tcx.generics_of(self.sig_id);
+        if let InheritanceKind::WithParent(has_self) = self.inh_kind
+            && let Some(parent_def_id) = sig_generics.parent
+        {
+            let sig_parent_generics = self.tcx.generics_of(parent_def_id);
+            own_params.append(&mut sig_parent_generics.own_params.clone());
+            if !has_self {
+                own_params.remove(0);
+            }
+        }
+        own_params.append(&mut sig_generics.own_params.clone());
+
+        // Lifetime parameters must be declared before type and const parameters.
+        // Therefore, When delegating from a free function to a associated function,
+        // generic parameters need to be reordered:
+        //
+        // trait Trait<'a, A> {
+        //     fn foo<'b, B>(...) {...}
+        // }
+        //
+        // reuse Trait::foo;
+        // desugaring:
+        // fn foo<'a, 'b, This: Trait<'a, A>, A, B>(...) {
+        //     Trait::foo(...)
+        // }
+        own_params.sort_by_key(|key| key.kind.is_ty_or_const());
+
+        let param_def_id_to_index =
+            own_params.iter().map(|param| (param.def_id, param.index)).collect();
+
+        let (parent_count, has_self) = if let Some(def_id) = self.parent {
+            let parent_generics = self.tcx.generics_of(def_id);
+            let parent_kind = self.tcx.def_kind(def_id);
+            (parent_generics.count(), parent_kind == DefKind::Trait)
+        } else {
+            (0, false)
+        };
+
+        for (idx, param) in own_params.iter_mut().enumerate() {
+            param.index = (idx + parent_count) as u32;
+            // FIXME(fn_delegation): Default parameters are not inherited, because they are
+            // not permitted in functions. Therefore, there are 2 options here:
+            //
+            // - We can create non-default generic parameters.
+            // - We can substitute default parameters into the signature.
+            //
+            // At the moment, first option has been selected as the most general.
+            if let ty::GenericParamDefKind::Type { has_default, .. }
+            | ty::GenericParamDefKind::Const { has_default, .. } = &mut param.kind
+            {
+                *has_default = false;
+            }
+        }
+
+        ty::Generics {
+            parent: self.parent,
+            parent_count,
+            own_params,
+            param_def_id_to_index,
+            has_self,
+            has_late_bound_regions: sig_generics.has_late_bound_regions,
+            host_effect_index: sig_generics.host_effect_index,
+        }
+    }
+}
+
+struct PredicatesBuilder<'tcx> {
+    tcx: TyCtxt<'tcx>,
+    sig_id: DefId,
+    parent: Option<DefId>,
+    inh_kind: InheritanceKind,
+    args: ty::GenericArgsRef<'tcx>,
+}
+
+impl<'tcx> PredicatesBuilder<'tcx> {
+    fn new(
+        tcx: TyCtxt<'tcx>,
+        args: ty::GenericArgsRef<'tcx>,
+        sig_id: DefId,
+    ) -> PredicatesBuilder<'tcx> {
+        PredicatesBuilder {
+            tcx,
+            sig_id,
+            parent: None,
+            inh_kind: InheritanceKind::WithParent(false),
+            args,
+        }
+    }
+
+    fn with_parent(mut self, parent: DefId) -> Self {
+        self.parent = Some(parent);
+        self
+    }
+
+    fn with_inheritance_kind(mut self, inh_kind: InheritanceKind) -> Self {
+        self.inh_kind = inh_kind;
+        self
+    }
+
+    fn build(self) -> ty::GenericPredicates<'tcx> {
+        struct PredicatesCollector<'tcx> {
+            tcx: TyCtxt<'tcx>,
+            preds: Vec<(ty::Clause<'tcx>, Span)>,
+            args: ty::GenericArgsRef<'tcx>,
+        }
+
+        impl<'tcx> PredicatesCollector<'tcx> {
+            fn new(tcx: TyCtxt<'tcx>, args: ty::GenericArgsRef<'tcx>) -> PredicatesCollector<'tcx> {
+                PredicatesCollector { tcx, preds: vec![], args }
+            }
+
+            fn with_own_preds(
+                mut self,
+                f: impl Fn(DefId) -> ty::GenericPredicates<'tcx>,
+                def_id: DefId,
+            ) -> Self {
+                let preds = f(def_id).instantiate_own(self.tcx, self.args);
+                self.preds.extend(preds);
+                self
+            }
+
+            fn with_preds(
+                mut self,
+                f: impl Fn(DefId) -> ty::GenericPredicates<'tcx> + Copy,
+                def_id: DefId,
+            ) -> Self {
+                let preds = f(def_id);
+                if let Some(parent_def_id) = preds.parent {
+                    self = self.with_own_preds(f, parent_def_id);
+                }
+                self.with_own_preds(f, def_id)
+            }
+        }
+        let collector = PredicatesCollector::new(self.tcx, self.args);
+
+        // `explicit_predicates_of` is used here to avoid copying `Self: Trait` predicate.
+        // Note: `predicates_of` query can also add inferred outlives predicates, but that
+        // is not the case here as `sig_id` is either a trait or a function.
+        let preds = match self.inh_kind {
+            InheritanceKind::WithParent(false) => {
+                collector.with_preds(|def_id| self.tcx.explicit_predicates_of(def_id), self.sig_id)
+            }
+            InheritanceKind::WithParent(true) => {
+                collector.with_preds(|def_id| self.tcx.predicates_of(def_id), self.sig_id)
+            }
+            InheritanceKind::Own => {
+                collector.with_own_preds(|def_id| self.tcx.predicates_of(def_id), self.sig_id)
+            }
+        }
+        .preds;
+
+        ty::GenericPredicates {
+            parent: self.parent,
+            predicates: self.tcx.arena.alloc_from_iter(preds),
+            // FIXME(fn_delegation): Support effects.
+            effects_min_tys: ty::List::empty(),
+        }
+    }
+}
+
+struct GenericArgsBuilder<'tcx> {
+    tcx: TyCtxt<'tcx>,
+    remap_table: RemapTable,
+    sig_id: DefId,
+    def_id: LocalDefId,
+}
+
+impl<'tcx> GenericArgsBuilder<'tcx> {
+    fn new(tcx: TyCtxt<'tcx>, sig_id: DefId, def_id: LocalDefId) -> GenericArgsBuilder<'tcx> {
+        GenericArgsBuilder { tcx, remap_table: FxHashMap::default(), sig_id, def_id }
+    }
+
+    fn build_from_args(mut self, args: ty::GenericArgsRef<'tcx>) -> ty::GenericArgsRef<'tcx> {
+        let caller_generics = self.tcx.generics_of(self.def_id);
+        let callee_generics = self.tcx.generics_of(self.sig_id);
+
+        for caller_param in &caller_generics.own_params {
+            let callee_index =
+                callee_generics.param_def_id_to_index(self.tcx, caller_param.def_id).unwrap();
+            self.remap_table.insert(callee_index, caller_param.index);
+        }
+
+        let mut folder = ParamIndexRemapper { tcx: self.tcx, remap_table: self.remap_table };
+        args.fold_with(&mut folder)
+    }
+}
+
 fn create_generic_args<'tcx>(
     tcx: TyCtxt<'tcx>,
     def_id: LocalDefId,
     sig_id: DefId,
 ) -> ty::GenericArgsRef<'tcx> {
-    let caller_generics = tcx.generics_of(def_id);
-    let callee_generics = tcx.generics_of(sig_id);
+    let builder = GenericArgsBuilder::new(tcx, sig_id, def_id);
 
     let caller_kind = fn_kind(tcx, def_id.into());
     let callee_kind = fn_kind(tcx, sig_id);
-    // FIXME(fn_delegation): Support generics on associated delegation items.
-    // Error will be reported in `check_constraints`.
     match (caller_kind, callee_kind) {
-        (FnKind::Free, _) => {
-            // Lifetime parameters must be declared before type and const parameters.
-            // Therefore, When delegating from a free function to a associated function,
-            // generic parameters need to be reordered:
-            //
-            // trait Trait<'a, A> {
-            //     fn foo<'b, B>(...) {...}
-            // }
-            //
-            // reuse Trait::foo;
-            // desugaring:
-            // fn foo<'a, 'b, This: Trait<'a, A>, A, B>(...) {
-            //     Trait::foo(...)
-            // }
-            let mut remap_table = RemapTable::default();
-            for caller_param in &caller_generics.own_params {
-                let callee_index =
-                    callee_generics.param_def_id_to_index(tcx, caller_param.def_id).unwrap();
-                remap_table.insert(callee_index, caller_param.index);
-            }
-            let mut folder = ParamIndexRemapper { tcx, remap_table };
-            ty::GenericArgs::identity_for_item(tcx, sig_id).fold_with(&mut folder)
+        (FnKind::Free, FnKind::Free)
+        | (FnKind::Free, FnKind::AssocTrait)
+        | (FnKind::AssocInherentImpl, FnKind::Free)
+        | (FnKind::AssocTrait, FnKind::Free)
+        | (FnKind::AssocTrait, FnKind::AssocTrait) => {
+            let args = ty::GenericArgs::identity_for_item(tcx, sig_id);
+            builder.build_from_args(args)
         }
-        // FIXME(fn_delegation): Only `Self` param supported here.
-        (FnKind::AssocTraitImpl, FnKind::AssocTrait)
-        | (FnKind::AssocInherentImpl, FnKind::AssocTrait) => {
+
+        (FnKind::AssocTraitImpl, FnKind::AssocTrait) => {
+            let callee_generics = tcx.generics_of(sig_id);
+            let parent = tcx.parent(def_id.into());
+            let parent_args =
+                tcx.impl_trait_header(parent).unwrap().trait_ref.instantiate_identity().args;
+
+            let trait_args = ty::GenericArgs::identity_for_item(tcx, sig_id);
+            let method_args = tcx.mk_args_from_iter(trait_args.iter().skip(callee_generics.parent_count));
+            let method_args = builder.build_from_args(method_args);
+
+            tcx.mk_args_from_iter(parent_args.iter().chain(method_args))
+        }
+
+        (FnKind::AssocInherentImpl, FnKind::AssocTrait) => {
             let parent = tcx.parent(def_id.into());
             let self_ty = tcx.type_of(parent).instantiate_identity();
             let generic_self_ty = ty::GenericArg::from(self_ty);
-            tcx.mk_args_from_iter(std::iter::once(generic_self_ty))
+
+            let trait_args = ty::GenericArgs::identity_for_item(tcx, sig_id);
+            let trait_args = builder.build_from_args(trait_args);
+
+            let args = std::iter::once(generic_self_ty).chain(trait_args.iter().skip(1));
+            tcx.mk_args_from_iter(args)
         }
-        _ => ty::GenericArgs::identity_for_item(tcx, sig_id),
+
+        // For trait impl's `sig_id` is always equal to the corresponding trait method.
+        (FnKind::AssocTraitImpl, _)
+        | (_, FnKind::AssocTraitImpl)
+        // Delegation to inherent methods is not yet supported.
+        | (_, FnKind::AssocInherentImpl) => unreachable!(),
     }
 }
 
+// FIXME(fn_delegation): Move generics inheritance to the AST->HIR lowering.
+// For now, generic parameters are not propagated to the generated call,
+// which leads to inference errors:
+//
+// fn foo<T>(x: i32) {}
+//
+// reuse foo as bar;
+// desugaring:
+// fn bar<T>() {
+//   foo::<_>() // ERROR: type annotations needed
+// }
 pub(crate) fn inherit_generics_for_delegation_item<'tcx>(
     tcx: TyCtxt<'tcx>,
     def_id: LocalDefId,
     sig_id: DefId,
-) -> Option<ty::Generics> {
-    // FIXME(fn_delegation): Support generics on associated delegation items.
-    // Error will be reported in `check_constraints`.
-    if fn_kind(tcx, def_id.into()) != FnKind::Free {
-        return None;
-    }
+) -> ty::Generics {
+    let builder = GenericsBuilder::new(tcx, sig_id);
 
-    let mut own_params = vec![];
-
-    let callee_generics = tcx.generics_of(sig_id);
-    if let Some(parent_sig_id) = callee_generics.parent {
-        let parent_sig_generics = tcx.generics_of(parent_sig_id);
-        own_params.append(&mut parent_sig_generics.own_params.clone());
-    }
-    own_params.append(&mut callee_generics.own_params.clone());
+    let caller_kind = fn_kind(tcx, def_id.into());
+    let callee_kind = fn_kind(tcx, sig_id);
+    match (caller_kind, callee_kind) {
+        (FnKind::Free, FnKind::Free)
+        | (FnKind::Free, FnKind::AssocTrait) => builder.with_inheritance_kind(InheritanceKind::WithParent(true)).build(),
+
+        (FnKind::AssocTraitImpl, FnKind::AssocTrait) => {
+            builder
+            .with_parent(tcx.parent(def_id.into()))
+            .with_inheritance_kind(InheritanceKind::Own)
+            .build()
+        }
 
-    // Lifetimes go first.
-    own_params.sort_by_key(|key| key.kind.is_ty_or_const());
+        (FnKind::AssocInherentImpl, FnKind::AssocTrait)
+        | (FnKind::AssocTrait, FnKind::AssocTrait) => {
+            builder
+            .with_parent(tcx.parent(def_id.into()))
+            .build()
+        }
 
-    for (idx, param) in own_params.iter_mut().enumerate() {
-        param.index = idx as u32;
-        // Default parameters are not inherited: they are not allowed
-        // in fn's.
-        if let ty::GenericParamDefKind::Type { has_default, .. }
-        | ty::GenericParamDefKind::Const { has_default, .. } = &mut param.kind
-        {
-            *has_default = false;
+        (FnKind::AssocInherentImpl, FnKind::Free)
+        | (FnKind::AssocTrait, FnKind::Free) => {
+            builder
+            .with_parent(tcx.parent(def_id.into()))
+            .build()
         }
-    }
 
-    let param_def_id_to_index =
-        own_params.iter().map(|param| (param.def_id, param.index)).collect();
-
-    Some(ty::Generics {
-        parent: None,
-        parent_count: 0,
-        own_params,
-        param_def_id_to_index,
-        has_self: false,
-        has_late_bound_regions: callee_generics.has_late_bound_regions,
-        host_effect_index: callee_generics.host_effect_index,
-    })
+        // For trait impl's `sig_id` is always equal to the corresponding trait method.
+        (FnKind::AssocTraitImpl, _)
+        | (_, FnKind::AssocTraitImpl)
+        // Delegation to inherent methods is not yet supported.
+        | (_, FnKind::AssocInherentImpl) => unreachable!(),
+    }
 }
 
 pub(crate) fn inherit_predicates_for_delegation_item<'tcx>(
     tcx: TyCtxt<'tcx>,
     def_id: LocalDefId,
     sig_id: DefId,
-) -> Option<ty::GenericPredicates<'tcx>> {
-    // FIXME(fn_delegation): Support generics on associated delegation items.
-    // Error will be reported in `check_constraints`.
-    if fn_kind(tcx, def_id.into()) != FnKind::Free {
-        return None;
-    }
-
-    let callee_predicates = tcx.predicates_of(sig_id);
+) -> ty::GenericPredicates<'tcx> {
     let args = create_generic_args(tcx, def_id, sig_id);
+    let builder = PredicatesBuilder::new(tcx, args, sig_id);
 
-    let mut preds = vec![];
-    if let Some(parent_id) = callee_predicates.parent {
-        preds.extend(tcx.predicates_of(parent_id).instantiate_own(tcx, args));
-    }
-    preds.extend(callee_predicates.instantiate_own(tcx, args));
+    let caller_kind = fn_kind(tcx, def_id.into());
+    let callee_kind = fn_kind(tcx, sig_id);
+    match (caller_kind, callee_kind) {
+        (FnKind::Free, FnKind::Free)
+        | (FnKind::Free, FnKind::AssocTrait) => {
+            builder.with_inheritance_kind(InheritanceKind::WithParent(true)).build()
+        }
+
+        (FnKind::AssocTraitImpl, FnKind::AssocTrait) => {
+            builder
+            .with_parent(tcx.parent(def_id.into()))
+            .with_inheritance_kind(InheritanceKind::Own)
+            .build()
+        }
+
+        (FnKind::AssocInherentImpl, FnKind::AssocTrait)
+        | (FnKind::AssocTrait, FnKind::AssocTrait)
+        | (FnKind::AssocInherentImpl, FnKind::Free)
+        | (FnKind::AssocTrait, FnKind::Free) => {
+            builder
+                .with_parent(tcx.parent(def_id.into()))
+                .build()
+        }
 
-    Some(ty::GenericPredicates {
-        parent: None,
-        predicates: tcx.arena.alloc_from_iter(preds),
-        effects_min_tys: ty::List::empty(),
-    })
+        // For trait impl's `sig_id` is always equal to the corresponding trait method.
+        (FnKind::AssocTraitImpl, _)
+        | (_, FnKind::AssocTraitImpl)
+        // Delegation to inherent methods is not yet supported.
+        | (_, FnKind::AssocInherentImpl) => unreachable!(),
+    }
 }
 
 fn check_constraints<'tcx>(
@@ -224,19 +482,6 @@ fn check_constraints<'tcx>(
         emit("recursive delegation is not supported yet");
     }
 
-    if fn_kind(tcx, def_id.into()) != FnKind::Free {
-        let sig_generics = tcx.generics_of(sig_id);
-        let parent = tcx.parent(def_id.into());
-        let parent_generics = tcx.generics_of(parent);
-
-        let parent_has_self = parent_generics.has_self as usize;
-        let sig_has_self = sig_generics.has_self as usize;
-
-        if sig_generics.count() > sig_has_self || parent_generics.count() > parent_has_self {
-            emit("early bound generics are not supported for associated delegation items");
-        }
-    }
-
     ret
 }
 
diff --git a/compiler/rustc_hir_typeck/src/upvar.rs b/compiler/rustc_hir_typeck/src/upvar.rs
index 5789e60ebbe..7688a63a30a 100644
--- a/compiler/rustc_hir_typeck/src/upvar.rs
+++ b/compiler/rustc_hir_typeck/src/upvar.rs
@@ -39,7 +39,6 @@ use rustc_hir as hir;
 use rustc_hir::def_id::LocalDefId;
 use rustc_hir::intravisit::{self, Visitor};
 use rustc_hir::HirId;
-use rustc_infer::infer::UpvarRegion;
 use rustc_middle::hir::place::{Place, PlaceBase, PlaceWithHirId, Projection, ProjectionKind};
 use rustc_middle::mir::FakeReadCause;
 use rustc_middle::traits::ObligationCauseCode;
@@ -425,7 +424,11 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
                             self.tcx,
                             upvar_ty,
                             capture,
-                            if needs_ref { Some(closure_env_region) } else { child_capture.region },
+                            if needs_ref {
+                                closure_env_region
+                            } else {
+                                self.tcx.lifetimes.re_erased
+                            },
                         );
                     },
                 ),
@@ -587,7 +590,12 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
 
                 debug!(?captured_place.place, ?upvar_ty, ?capture, ?captured_place.mutability);
 
-                apply_capture_kind_on_capture_ty(self.tcx, upvar_ty, capture, captured_place.region)
+                apply_capture_kind_on_capture_ty(
+                    self.tcx,
+                    upvar_ty,
+                    capture,
+                    self.tcx.lifetimes.re_erased,
+                )
             })
             .collect()
     }
@@ -775,13 +783,8 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
 
             let Some(min_cap_list) = root_var_min_capture_list.get_mut(&var_hir_id) else {
                 let mutability = self.determine_capture_mutability(&typeck_results, &place);
-                let min_cap_list = vec![ty::CapturedPlace {
-                    var_ident,
-                    place,
-                    info: capture_info,
-                    mutability,
-                    region: None,
-                }];
+                let min_cap_list =
+                    vec![ty::CapturedPlace { var_ident, place, info: capture_info, mutability }];
                 root_var_min_capture_list.insert(var_hir_id, min_cap_list);
                 continue;
             };
@@ -874,34 +877,12 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
             // Only need to insert when we don't have an ancestor in the existing min capture list
             if !ancestor_found {
                 let mutability = self.determine_capture_mutability(&typeck_results, &place);
-                let captured_place = ty::CapturedPlace {
-                    var_ident,
-                    place,
-                    info: updated_capture_info,
-                    mutability,
-                    region: None,
-                };
+                let captured_place =
+                    ty::CapturedPlace { var_ident, place, info: updated_capture_info, mutability };
                 min_cap_list.push(captured_place);
             }
         }
 
-        // For each capture that is determined to be captured by ref, add region info.
-        for (_, captures) in &mut root_var_min_capture_list {
-            for capture in captures {
-                match capture.info.capture_kind {
-                    ty::UpvarCapture::ByRef(_) => {
-                        let PlaceBase::Upvar(upvar_id) = capture.place.base else {
-                            bug!("expected upvar")
-                        };
-                        let origin = UpvarRegion(upvar_id, closure_span);
-                        let upvar_region = self.next_region_var(origin);
-                        capture.region = Some(upvar_region);
-                    }
-                    _ => (),
-                }
-            }
-        }
-
         debug!(
             "For closure={:?}, min_captures before sorting={:?}",
             closure_def_id, root_var_min_capture_list
@@ -1195,7 +1176,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
                     self.tcx,
                     ty,
                     max_capture_info.capture_kind,
-                    Some(self.tcx.lifetimes.re_erased),
+                    self.tcx.lifetimes.re_erased,
                 )
             }
         };
@@ -1217,7 +1198,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
                 self.tcx,
                 capture.place.ty(),
                 capture.info.capture_kind,
-                Some(self.tcx.lifetimes.re_erased),
+                self.tcx.lifetimes.re_erased,
             );
 
             // Checks if a capture implements any of the auto traits
@@ -1935,13 +1916,11 @@ fn apply_capture_kind_on_capture_ty<'tcx>(
     tcx: TyCtxt<'tcx>,
     ty: Ty<'tcx>,
     capture_kind: UpvarCapture,
-    region: Option<ty::Region<'tcx>>,
+    region: ty::Region<'tcx>,
 ) -> Ty<'tcx> {
     match capture_kind {
         ty::UpvarCapture::ByValue => ty,
-        ty::UpvarCapture::ByRef(kind) => {
-            Ty::new_ref(tcx, region.unwrap(), ty, kind.to_mutbl_lossy())
-        }
+        ty::UpvarCapture::ByRef(kind) => Ty::new_ref(tcx, region, ty, kind.to_mutbl_lossy()),
     }
 }
 
diff --git a/compiler/rustc_index/src/interval.rs b/compiler/rustc_index/src/interval.rs
index be028feca60..503470f896d 100644
--- a/compiler/rustc_index/src/interval.rs
+++ b/compiler/rustc_index/src/interval.rs
@@ -18,7 +18,7 @@ mod tests;
 #[derive(Debug, Clone)]
 pub struct IntervalSet<I> {
     // Start, end
-    map: SmallVec<[(u32, u32); 4]>,
+    map: SmallVec<[(u32, u32); 2]>,
     domain: usize,
     _data: PhantomData<I>,
 }
diff --git a/compiler/rustc_lexer/src/lib.rs b/compiler/rustc_lexer/src/lib.rs
index 31fdd2d7cec..60aab668cba 100644
--- a/compiler/rustc_lexer/src/lib.rs
+++ b/compiler/rustc_lexer/src/lib.rs
@@ -91,6 +91,15 @@ pub enum TokenKind {
     /// tokens.
     UnknownPrefix,
 
+    /// An unknown prefix in a lifetime, like `'foo#`.
+    ///
+    /// Note that like above, only the `'` and prefix are included in the token
+    /// and not the separator.
+    UnknownPrefixLifetime,
+
+    /// `'r#lt`, which in edition < 2021 is split into several tokens: `'r # lt`.
+    RawLifetime,
+
     /// Similar to the above, but *always* an error on every edition. This is used
     /// for emoji identifier recovery, as those are not meant to be ever accepted.
     InvalidPrefix,
@@ -677,9 +686,17 @@ impl Cursor<'_> {
             return Literal { kind, suffix_start };
         }
 
+        if self.first() == 'r' && self.second() == '#' && is_id_start(self.third()) {
+            // Eat "r" and `#`, and identifier start characters.
+            self.bump();
+            self.bump();
+            self.bump();
+            self.eat_while(is_id_continue);
+            return RawLifetime;
+        }
+
         // Either a lifetime or a character literal with
         // length greater than 1.
-
         let starts_with_number = self.first().is_ascii_digit();
 
         // Skip the literal contents.
@@ -688,15 +705,17 @@ impl Cursor<'_> {
         self.bump();
         self.eat_while(is_id_continue);
 
-        // Check if after skipping literal contents we've met a closing
-        // single quote (which means that user attempted to create a
-        // string with single quotes).
-        if self.first() == '\'' {
-            self.bump();
-            let kind = Char { terminated: true };
-            Literal { kind, suffix_start: self.pos_within_token() }
-        } else {
-            Lifetime { starts_with_number }
+        match self.first() {
+            // Check if after skipping literal contents we've met a closing
+            // single quote (which means that user attempted to create a
+            // string with single quotes).
+            '\'' => {
+                self.bump();
+                let kind = Char { terminated: true };
+                Literal { kind, suffix_start: self.pos_within_token() }
+            }
+            '#' if !starts_with_number => UnknownPrefixLifetime,
+            _ => Lifetime { starts_with_number },
         }
     }
 
diff --git a/compiler/rustc_lint/messages.ftl b/compiler/rustc_lint/messages.ftl
index 759320b9eb6..7d4dee45c26 100644
--- a/compiler/rustc_lint/messages.ftl
+++ b/compiler/rustc_lint/messages.ftl
@@ -255,6 +255,7 @@ lint_duplicate_matcher_binding = duplicate matcher binding
 lint_elided_named_lifetime = elided lifetime has a name
     .label_elided = this elided lifetime gets resolved as `{$name}`
     .label_named = lifetime `{$name}` declared here
+    .suggestion = consider specifying it explicitly
 
 lint_enum_intrinsics_mem_discriminant =
     the return value of `mem::discriminant` is unspecified when called with a non-enum type
@@ -707,6 +708,10 @@ lint_range_endpoint_out_of_range = range endpoint is out of range for `{$ty}`
 lint_range_use_inclusive_range = use an inclusive range instead
 
 
+lint_raw_prefix = prefix `'r` is reserved
+    .label = reserved prefix
+    .suggestion = insert whitespace here to avoid this being parsed as a prefix in Rust 2021
+
 lint_reason_must_be_string_literal = reason must be a string literal
 
 lint_reason_must_come_last = reason in lint attribute must come last
diff --git a/compiler/rustc_lint/src/builtin.rs b/compiler/rustc_lint/src/builtin.rs
index d8482567bbe..824a1868c55 100644
--- a/compiler/rustc_lint/src/builtin.rs
+++ b/compiler/rustc_lint/src/builtin.rs
@@ -1851,9 +1851,16 @@ impl KeywordIdents {
                 TokenTree::Token(token, _) => {
                     if let Some((ident, token::IdentIsRaw::No)) = token.ident() {
                         if !prev_dollar {
-                            self.check_ident_token(cx, UnderMacro(true), ident);
+                            self.check_ident_token(cx, UnderMacro(true), ident, "");
                         }
-                    } else if *token == TokenKind::Dollar {
+                    } else if let Some((ident, token::IdentIsRaw::No)) = token.lifetime() {
+                        self.check_ident_token(
+                            cx,
+                            UnderMacro(true),
+                            ident.without_first_quote(),
+                            "'",
+                        );
+                    } else if token.kind == TokenKind::Dollar {
                         prev_dollar = true;
                         continue;
                     }
@@ -1869,6 +1876,7 @@ impl KeywordIdents {
         cx: &EarlyContext<'_>,
         UnderMacro(under_macro): UnderMacro,
         ident: Ident,
+        prefix: &'static str,
     ) {
         let (lint, edition) = match ident.name {
             kw::Async | kw::Await | kw::Try => (KEYWORD_IDENTS_2018, Edition::Edition2018),
@@ -1902,7 +1910,7 @@ impl KeywordIdents {
         cx.emit_span_lint(
             lint,
             ident.span,
-            BuiltinKeywordIdents { kw: ident, next: edition, suggestion: ident.span },
+            BuiltinKeywordIdents { kw: ident, next: edition, suggestion: ident.span, prefix },
         );
     }
 }
@@ -1915,7 +1923,11 @@ impl EarlyLintPass for KeywordIdents {
         self.check_tokens(cx, &mac.args.tokens);
     }
     fn check_ident(&mut self, cx: &EarlyContext<'_>, ident: Ident) {
-        self.check_ident_token(cx, UnderMacro(false), ident);
+        if ident.name.as_str().starts_with('\'') {
+            self.check_ident_token(cx, UnderMacro(false), ident.without_first_quote(), "'");
+        } else {
+            self.check_ident_token(cx, UnderMacro(false), ident, "");
+        }
     }
 }
 
diff --git a/compiler/rustc_lint/src/context/diagnostics.rs b/compiler/rustc_lint/src/context/diagnostics.rs
index fd43afa1743..fd13c418c09 100644
--- a/compiler/rustc_lint/src/context/diagnostics.rs
+++ b/compiler/rustc_lint/src/context/diagnostics.rs
@@ -8,13 +8,13 @@ use rustc_errors::{
     elided_lifetime_in_path_suggestion, Applicability, Diag, DiagArgValue, LintDiagnostic,
 };
 use rustc_middle::middle::stability;
-use rustc_session::lint::BuiltinLintDiag;
+use rustc_session::lint::{BuiltinLintDiag, ElidedLifetimeResolution};
 use rustc_session::Session;
 use rustc_span::symbol::kw;
 use rustc_span::BytePos;
 use tracing::debug;
 
-use crate::lints;
+use crate::lints::{self, ElidedNamedLifetime};
 
 mod check_cfg;
 
@@ -172,6 +172,10 @@ pub(super) fn decorate_lint(sess: &Session, diagnostic: BuiltinLintDiag, diag: &
             }
             .decorate_lint(diag);
         }
+        BuiltinLintDiag::RawPrefix(label_span) => {
+            lints::RawPrefix { label: label_span, suggestion: label_span.shrink_to_hi() }
+                .decorate_lint(diag);
+        }
         BuiltinLintDiag::UnusedBuiltinAttribute { attr_name, macro_name, invoc_span } => {
             lints::UnusedBuiltinAttribute { invoc_span, attr_name, macro_name }.decorate_lint(diag);
         }
@@ -442,15 +446,14 @@ pub(super) fn decorate_lint(sess: &Session, diagnostic: BuiltinLintDiag, diag: &
         BuiltinLintDiag::UnexpectedBuiltinCfg { cfg, cfg_name, controlled_by } => {
             lints::UnexpectedBuiltinCfg { cfg, cfg_name, controlled_by }.decorate_lint(diag)
         }
-        BuiltinLintDiag::ElidedIsStatic { elided } => {
-            lints::ElidedNamedLifetime { elided, name: kw::StaticLifetime, named_declaration: None }
-                .decorate_lint(diag)
-        }
-        BuiltinLintDiag::ElidedIsParam { elided, param: (param_name, param_span) } => {
-            lints::ElidedNamedLifetime {
-                elided,
-                name: param_name,
-                named_declaration: Some(param_span),
+        BuiltinLintDiag::ElidedNamedLifetimes { elided: (span, kind), resolution } => {
+            match resolution {
+                ElidedLifetimeResolution::Static => {
+                    ElidedNamedLifetime { span, kind, name: kw::StaticLifetime, declaration: None }
+                }
+                ElidedLifetimeResolution::Param(name, declaration) => {
+                    ElidedNamedLifetime { span, kind, name, declaration: Some(declaration) }
+                }
             }
             .decorate_lint(diag)
         }
diff --git a/compiler/rustc_lint/src/lints.rs b/compiler/rustc_lint/src/lints.rs
index 9050f36acba..e49b102cb39 100644
--- a/compiler/rustc_lint/src/lints.rs
+++ b/compiler/rustc_lint/src/lints.rs
@@ -9,7 +9,7 @@ use rustc_errors::{
 };
 use rustc_hir::def::Namespace;
 use rustc_hir::def_id::DefId;
-use rustc_hir::{self as hir};
+use rustc_hir::{self as hir, MissingLifetimeKind};
 use rustc_macros::{LintDiagnostic, Subdiagnostic};
 use rustc_middle::ty::inhabitedness::InhabitedPredicate;
 use rustc_middle::ty::{Clause, PolyExistentialTraitRef, Ty, TyCtxt};
@@ -363,8 +363,9 @@ pub(crate) enum BuiltinEllipsisInclusiveRangePatternsLint {
 pub(crate) struct BuiltinKeywordIdents {
     pub kw: Ident,
     pub next: Edition,
-    #[suggestion(code = "r#{kw}", applicability = "machine-applicable")]
+    #[suggestion(code = "{prefix}r#{kw}", applicability = "machine-applicable")]
     pub suggestion: Span,
+    pub prefix: &'static str,
 }
 
 #[derive(LintDiagnostic)]
@@ -2623,14 +2624,56 @@ pub(crate) struct ElidedLifetimesInPaths {
     pub subdiag: ElidedLifetimeInPathSubdiag,
 }
 
-#[derive(LintDiagnostic)]
-#[diag(lint_elided_named_lifetime)]
 pub(crate) struct ElidedNamedLifetime {
-    #[label(lint_label_elided)]
-    pub elided: Span,
+    pub span: Span,
+    pub kind: MissingLifetimeKind,
     pub name: Symbol,
-    #[label(lint_label_named)]
-    pub named_declaration: Option<Span>,
+    pub declaration: Option<Span>,
+}
+
+impl<G: EmissionGuarantee> LintDiagnostic<'_, G> for ElidedNamedLifetime {
+    fn decorate_lint(self, diag: &mut rustc_errors::Diag<'_, G>) {
+        let Self { span, kind, name, declaration } = self;
+        diag.primary_message(fluent::lint_elided_named_lifetime);
+        diag.arg("name", name);
+        diag.span_label(span, fluent::lint_label_elided);
+        if let Some(declaration) = declaration {
+            diag.span_label(declaration, fluent::lint_label_named);
+        }
+        // FIXME(GrigorenkoPV): this `if` and `return` should be removed,
+        //  but currently this lint's suggestions can conflict with those of `clippy::needless_lifetimes`:
+        //  https://github.com/rust-lang/rust/pull/129840#issuecomment-2323349119
+        // HACK: `'static` suggestions will never sonflict, emit only those for now.
+        if name != rustc_span::symbol::kw::StaticLifetime {
+            return;
+        }
+        match kind {
+            MissingLifetimeKind::Underscore => diag.span_suggestion_verbose(
+                span,
+                fluent::lint_suggestion,
+                format!("{name}"),
+                Applicability::MachineApplicable,
+            ),
+            MissingLifetimeKind::Ampersand => diag.span_suggestion_verbose(
+                span.shrink_to_hi(),
+                fluent::lint_suggestion,
+                format!("{name} "),
+                Applicability::MachineApplicable,
+            ),
+            MissingLifetimeKind::Comma => diag.span_suggestion_verbose(
+                span.shrink_to_hi(),
+                fluent::lint_suggestion,
+                format!("{name}, "),
+                Applicability::MachineApplicable,
+            ),
+            MissingLifetimeKind::Brackets => diag.span_suggestion_verbose(
+                span.shrink_to_hi(),
+                fluent::lint_suggestion,
+                format!("<{name}>"),
+                Applicability::MachineApplicable,
+            ),
+        };
+    }
 }
 
 #[derive(LintDiagnostic)]
@@ -2773,6 +2816,15 @@ pub(crate) struct ReservedPrefix {
 }
 
 #[derive(LintDiagnostic)]
+#[diag(lint_raw_prefix)]
+pub(crate) struct RawPrefix {
+    #[label]
+    pub label: Span,
+    #[suggestion(code = " ", applicability = "machine-applicable")]
+    pub suggestion: Span,
+}
+
+#[derive(LintDiagnostic)]
 #[diag(lint_unused_builtin_attribute)]
 pub(crate) struct UnusedBuiltinAttribute {
     #[note]
diff --git a/compiler/rustc_lint_defs/src/lib.rs b/compiler/rustc_lint_defs/src/lib.rs
index 6ee33041623..5c4b7e5664d 100644
--- a/compiler/rustc_lint_defs/src/lib.rs
+++ b/compiler/rustc_lint_defs/src/lib.rs
@@ -10,7 +10,7 @@ use rustc_data_structures::stable_hasher::{
 };
 use rustc_error_messages::{DiagMessage, MultiSpan};
 use rustc_hir::def::Namespace;
-use rustc_hir::{HashStableContext, HirId};
+use rustc_hir::{HashStableContext, HirId, MissingLifetimeKind};
 use rustc_macros::{Decodable, Encodable, HashStable_Generic};
 use rustc_span::edition::Edition;
 use rustc_span::symbol::{Ident, MacroRulesNormalizedIdent};
@@ -556,6 +556,12 @@ pub enum DeprecatedSinceKind {
     InVersion(String),
 }
 
+#[derive(Debug)]
+pub enum ElidedLifetimeResolution {
+    Static,
+    Param(Symbol, Span),
+}
+
 // This could be a closure, but then implementing derive trait
 // becomes hacky (and it gets allocated).
 #[derive(Debug)]
@@ -568,12 +574,9 @@ pub enum BuiltinLintDiag {
     },
     MacroExpandedMacroExportsAccessedByAbsolutePaths(Span),
     ElidedLifetimesInPaths(usize, Span, bool, Span),
-    ElidedIsStatic {
-        elided: Span,
-    },
-    ElidedIsParam {
-        elided: Span,
-        param: (Symbol, Span),
+    ElidedNamedLifetimes {
+        elided: (Span, MissingLifetimeKind),
+        resolution: ElidedLifetimeResolution,
     },
     UnknownCrateTypes {
         span: Span,
@@ -609,6 +612,8 @@ pub enum BuiltinLintDiag {
     LegacyDeriveHelpers(Span),
     OrPatternsBackCompat(Span, String),
     ReservedPrefix(Span, String),
+    /// `'r#` in edition < 2021.
+    RawPrefix(Span),
     TrailingMacro(bool, Ident),
     BreakWithLabelAndLoop(Span),
     UnicodeTextFlow(Span, String),
diff --git a/compiler/rustc_llvm/src/lib.rs b/compiler/rustc_llvm/src/lib.rs
index 3532d50c64e..055d2bd5bc9 100644
--- a/compiler/rustc_llvm/src/lib.rs
+++ b/compiler/rustc_llvm/src/lib.rs
@@ -1,6 +1,5 @@
 // tidy-alphabetical-start
 #![allow(internal_features)]
-#![cfg_attr(bootstrap, feature(unsafe_attributes, unsafe_extern_blocks))]
 #![doc(html_root_url = "https://doc.rust-lang.org/nightly/nightly-rustc/")]
 #![doc(rust_logo)]
 #![feature(rustdoc_internals)]
diff --git a/compiler/rustc_metadata/src/rmeta/encoder.rs b/compiler/rustc_metadata/src/rmeta/encoder.rs
index 83bad59825c..b617d5236b9 100644
--- a/compiler/rustc_metadata/src/rmeta/encoder.rs
+++ b/compiler/rustc_metadata/src/rmeta/encoder.rs
@@ -9,6 +9,7 @@ use rustc_data_structures::fx::{FxIndexMap, FxIndexSet};
 use rustc_data_structures::memmap::{Mmap, MmapMut};
 use rustc_data_structures::sync::{join, par_for_each_in, Lrc};
 use rustc_data_structures::temp_dir::MaybeTempDir;
+use rustc_feature::Features;
 use rustc_hir as hir;
 use rustc_hir::def_id::{LocalDefId, LocalDefIdSet, CRATE_DEF_ID, CRATE_DEF_INDEX, LOCAL_CRATE};
 use rustc_hir::definitions::DefPathData;
@@ -797,9 +798,10 @@ impl<'a, 'tcx> EncodeContext<'a, 'tcx> {
     }
 }
 
-struct AnalyzeAttrState {
+struct AnalyzeAttrState<'a> {
     is_exported: bool,
     is_doc_hidden: bool,
+    features: &'a Features,
 }
 
 /// Returns whether an attribute needs to be recorded in metadata, that is, if it's usable and
@@ -812,7 +814,7 @@ struct AnalyzeAttrState {
 /// visibility: this is a piece of data that can be computed once per defid, and not once per
 /// attribute. Some attributes would only be usable downstream if they are public.
 #[inline]
-fn analyze_attr(attr: &Attribute, state: &mut AnalyzeAttrState) -> bool {
+fn analyze_attr(attr: &Attribute, state: &mut AnalyzeAttrState<'_>) -> bool {
     let mut should_encode = false;
     if !rustc_feature::encode_cross_crate(attr.name_or_empty()) {
         // Attributes not marked encode-cross-crate don't need to be encoded for downstream crates.
@@ -837,6 +839,9 @@ fn analyze_attr(attr: &Attribute, state: &mut AnalyzeAttrState) -> bool {
                 }
             }
         }
+    } else if attr.path().starts_with(&[sym::diagnostic]) && attr.path().len() == 2 {
+        should_encode =
+            rustc_feature::is_stable_diagnostic_attribute(attr.path()[1], state.features);
     } else {
         should_encode = true;
     }
@@ -1343,6 +1348,7 @@ impl<'a, 'tcx> EncodeContext<'a, 'tcx> {
         let mut state = AnalyzeAttrState {
             is_exported: tcx.effective_visibilities(()).is_exported(def_id),
             is_doc_hidden: false,
+            features: &tcx.features(),
         };
         let attr_iter = tcx
             .hir()
diff --git a/compiler/rustc_middle/src/lib.rs b/compiler/rustc_middle/src/lib.rs
index 2a85f85a9f4..fd6e2ad79b1 100644
--- a/compiler/rustc_middle/src/lib.rs
+++ b/compiler/rustc_middle/src/lib.rs
@@ -28,7 +28,6 @@
 #![allow(rustc::diagnostic_outside_of_impl)]
 #![allow(rustc::potential_query_instability)]
 #![allow(rustc::untranslatable_diagnostic)]
-#![cfg_attr(bootstrap, feature(min_exhaustive_patterns, unsafe_extern_blocks))]
 #![doc(html_root_url = "https://doc.rust-lang.org/nightly/nightly-rustc/")]
 #![doc(rust_logo)]
 #![feature(allocator_api)]
diff --git a/compiler/rustc_middle/src/ty/closure.rs b/compiler/rustc_middle/src/ty/closure.rs
index 8eb3c015679..809801c33e1 100644
--- a/compiler/rustc_middle/src/ty/closure.rs
+++ b/compiler/rustc_middle/src/ty/closure.rs
@@ -88,9 +88,6 @@ pub struct CapturedPlace<'tcx> {
 
     /// Represents if `place` can be mutated or not.
     pub mutability: hir::Mutability,
-
-    /// Region of the resulting reference if the upvar is captured by ref.
-    pub region: Option<ty::Region<'tcx>>,
 }
 
 impl<'tcx> CapturedPlace<'tcx> {
diff --git a/compiler/rustc_middle/src/ty/context.rs b/compiler/rustc_middle/src/ty/context.rs
index 2a3008897c6..5334e767766 100644
--- a/compiler/rustc_middle/src/ty/context.rs
+++ b/compiler/rustc_middle/src/ty/context.rs
@@ -3183,8 +3183,7 @@ impl<'tcx> TyCtxt<'tcx> {
 
     /// Whether this is a trait implementation that has `#[diagnostic::do_not_recommend]`
     pub fn do_not_recommend_impl(self, def_id: DefId) -> bool {
-        matches!(self.def_kind(def_id), DefKind::Impl { of_trait: true })
-            && self.impl_trait_header(def_id).is_some_and(|header| header.do_not_recommend)
+        self.get_diagnostic_attr(def_id, sym::do_not_recommend).is_some()
     }
 }
 
diff --git a/compiler/rustc_middle/src/ty/mod.rs b/compiler/rustc_middle/src/ty/mod.rs
index ee70a6346d9..e637ced7139 100644
--- a/compiler/rustc_middle/src/ty/mod.rs
+++ b/compiler/rustc_middle/src/ty/mod.rs
@@ -263,7 +263,6 @@ pub struct ImplTraitHeader<'tcx> {
     pub trait_ref: ty::EarlyBinder<'tcx, ty::TraitRef<'tcx>>,
     pub polarity: ImplPolarity,
     pub safety: hir::Safety,
-    pub do_not_recommend: bool,
 }
 
 #[derive(Copy, Clone, PartialEq, Eq, Debug, TypeFoldable, TypeVisitable)]
@@ -1797,6 +1796,37 @@ impl<'tcx> TyCtxt<'tcx> {
         }
     }
 
+    /// Get an attribute from the diagnostic attribute namespace
+    ///
+    /// This function requests an attribute with the following structure:
+    ///
+    /// `#[diagnostic::$attr]`
+    ///
+    /// This function performs feature checking, so if an attribute is returned
+    /// it can be used by the consumer
+    pub fn get_diagnostic_attr(
+        self,
+        did: impl Into<DefId>,
+        attr: Symbol,
+    ) -> Option<&'tcx ast::Attribute> {
+        let did: DefId = did.into();
+        if did.as_local().is_some() {
+            // it's a crate local item, we need to check feature flags
+            if rustc_feature::is_stable_diagnostic_attribute(attr, self.features()) {
+                self.get_attrs_by_path(did, &[sym::diagnostic, sym::do_not_recommend]).next()
+            } else {
+                None
+            }
+        } else {
+            // we filter out unstable diagnostic attributes before
+            // encoding attributes
+            debug_assert!(rustc_feature::encode_cross_crate(attr));
+            self.item_attrs(did)
+                .iter()
+                .find(|a| matches!(a.path().as_ref(), [sym::diagnostic, a] if *a == attr))
+        }
+    }
+
     pub fn get_attrs_by_path<'attr>(
         self,
         did: DefId,
diff --git a/compiler/rustc_mir_transform/src/coroutine/by_move_body.rs b/compiler/rustc_mir_transform/src/coroutine/by_move_body.rs
index cf39c136b01..9e35dfed0ee 100644
--- a/compiler/rustc_mir_transform/src/coroutine/by_move_body.rs
+++ b/compiler/rustc_mir_transform/src/coroutine/by_move_body.rs
@@ -88,6 +88,11 @@ pub fn coroutine_by_move_body_def_id<'tcx>(
 ) -> DefId {
     let body = tcx.mir_built(coroutine_def_id).borrow();
 
+    // If the typeck results are tainted, no need to make a by-ref body.
+    if body.tainted_by_errors.is_some() {
+        return coroutine_def_id.to_def_id();
+    }
+
     let Some(hir::CoroutineKind::Desugared(_, hir::CoroutineSource::Closure)) =
         tcx.coroutine_kind(coroutine_def_id)
     else {
@@ -98,7 +103,9 @@ pub fn coroutine_by_move_body_def_id<'tcx>(
     // the MIR body will be constructed well.
     let coroutine_ty = body.local_decls[ty::CAPTURE_STRUCT_LOCAL].ty;
 
-    let ty::Coroutine(_, args) = *coroutine_ty.kind() else { bug!("{body:#?}") };
+    let ty::Coroutine(_, args) = *coroutine_ty.kind() else {
+        bug!("tried to create by-move body of non-coroutine receiver");
+    };
     let args = args.as_coroutine();
 
     let coroutine_kind = args.kind_ty().to_opt_closure_kind().unwrap();
@@ -107,7 +114,7 @@ pub fn coroutine_by_move_body_def_id<'tcx>(
     let ty::CoroutineClosure(_, parent_args) =
         *tcx.type_of(parent_def_id).instantiate_identity().kind()
     else {
-        bug!();
+        bug!("coroutine's parent was not a coroutine-closure");
     };
     if parent_args.references_error() {
         return coroutine_def_id.to_def_id();
diff --git a/compiler/rustc_mir_transform/src/validate.rs b/compiler/rustc_mir_transform/src/validate.rs
index 69e2592e82c..e515dfc5ea5 100644
--- a/compiler/rustc_mir_transform/src/validate.rs
+++ b/compiler/rustc_mir_transform/src/validate.rs
@@ -1,6 +1,7 @@
 //! Validates the MIR to ensure that invariants are upheld.
 
 use rustc_data_structures::fx::{FxHashMap, FxHashSet};
+use rustc_hir as hir;
 use rustc_hir::LangItem;
 use rustc_index::bit_set::BitSet;
 use rustc_index::IndexVec;
@@ -714,7 +715,17 @@ impl<'a, 'tcx> Visitor<'tcx> for TypeChecker<'a, 'tcx> {
                             // since we may be in the process of computing this MIR in the
                             // first place.
                             let layout = if def_id == self.caller_body.source.def_id() {
-                                // FIXME: This is not right for async closures.
+                                self.caller_body.coroutine_layout_raw()
+                            } else if let Some(hir::CoroutineKind::Desugared(
+                                _,
+                                hir::CoroutineSource::Closure,
+                            )) = self.tcx.coroutine_kind(def_id)
+                                && let ty::ClosureKind::FnOnce =
+                                    args.as_coroutine().kind_ty().to_opt_closure_kind().unwrap()
+                                && self.caller_body.source.def_id()
+                                    == self.tcx.coroutine_by_move_body_def_id(def_id)
+                            {
+                                // Same if this is the by-move body of a coroutine-closure.
                                 self.caller_body.coroutine_layout_raw()
                             } else {
                                 self.tcx.coroutine_layout(def_id, args.as_coroutine().kind_ty())
diff --git a/compiler/rustc_parse/Cargo.toml b/compiler/rustc_parse/Cargo.toml
index b33896154f2..c59ae48a07d 100644
--- a/compiler/rustc_parse/Cargo.toml
+++ b/compiler/rustc_parse/Cargo.toml
@@ -12,6 +12,7 @@ rustc_data_structures = { path = "../rustc_data_structures" }
 rustc_errors = { path = "../rustc_errors" }
 rustc_feature = { path = "../rustc_feature" }
 rustc_fluent_macro = { path = "../rustc_fluent_macro" }
+rustc_index = { path = "../rustc_index" }
 rustc_lexer = { path = "../rustc_lexer" }
 rustc_macros = { path = "../rustc_macros" }
 rustc_session = { path = "../rustc_session" }
diff --git a/compiler/rustc_parse/messages.ftl b/compiler/rustc_parse/messages.ftl
index 8e8d91ce4d0..ec9a676ea31 100644
--- a/compiler/rustc_parse/messages.ftl
+++ b/compiler/rustc_parse/messages.ftl
@@ -381,6 +381,7 @@ parse_invalid_char_in_escape_msg = invalid character in {$is_hex ->
     *[false] unicode
     } escape
 
+
 parse_invalid_comparison_operator = invalid comparison operator `{$invalid}`
     .use_instead = `{$invalid}` is not a valid comparison operator, use `{$correct}`
     .spaceship_operator_invalid = `<=>` is not a valid comparison operator, use `std::cmp::Ordering`
@@ -581,6 +582,11 @@ parse_missing_trait_in_trait_impl = missing trait in a trait impl
     .suggestion_add_trait = add a trait here
     .suggestion_remove_for = for an inherent impl, drop this `for`
 
+parse_misspelled_kw = {$is_incorrect_case ->
+                    [true] write keyword `{$similar_kw}` in lowercase
+                    *[false] there is a keyword `{$similar_kw}` with a similar name
+}
+
 parse_modifier_lifetime = `{$modifier}` may only modify trait bounds, not lifetime bounds
     .suggestion = remove the `{$modifier}`
 
diff --git a/compiler/rustc_parse/src/lexer/mod.rs b/compiler/rustc_parse/src/lexer/mod.rs
index f30939093c2..b7232ff21ca 100644
--- a/compiler/rustc_parse/src/lexer/mod.rs
+++ b/compiler/rustc_parse/src/lexer/mod.rs
@@ -13,7 +13,6 @@ use rustc_session::lint::builtin::{
 };
 use rustc_session::lint::BuiltinLintDiag;
 use rustc_session::parse::ParseSess;
-use rustc_span::edition::Edition;
 use rustc_span::symbol::Symbol;
 use rustc_span::{BytePos, Pos, Span};
 use tracing::debug;
@@ -188,9 +187,7 @@ impl<'psess, 'src> StringReader<'psess, 'src> {
                     preceded_by_whitespace = true;
                     continue;
                 }
-                rustc_lexer::TokenKind::Ident => {
-                    self.ident(start)
-                }
+                rustc_lexer::TokenKind::Ident => self.ident(start),
                 rustc_lexer::TokenKind::RawIdent => {
                     let sym = nfc_normalize(self.str_from(start + BytePos(2)));
                     let span = self.mk_sp(start, self.pos);
@@ -205,20 +202,31 @@ impl<'psess, 'src> StringReader<'psess, 'src> {
                     self.report_unknown_prefix(start);
                     self.ident(start)
                 }
-                rustc_lexer::TokenKind::InvalidIdent
-                | rustc_lexer::TokenKind::InvalidPrefix
+                rustc_lexer::TokenKind::UnknownPrefixLifetime => {
+                    self.report_unknown_prefix(start);
+                    // Include the leading `'` in the real identifier, for macro
+                    // expansion purposes. See #12512 for the gory details of why
+                    // this is necessary.
+                    let lifetime_name = self.str_from(start);
+                    self.last_lifetime = Some(self.mk_sp(start, start + BytePos(1)));
+                    let ident = Symbol::intern(lifetime_name);
+                    token::Lifetime(ident, IdentIsRaw::No)
+                }
+                rustc_lexer::TokenKind::InvalidIdent | rustc_lexer::TokenKind::InvalidPrefix
                     // Do not recover an identifier with emoji if the codepoint is a confusable
                     // with a recoverable substitution token, like `➖`.
-                    if !UNICODE_ARRAY
-                        .iter()
-                        .any(|&(c, _, _)| {
-                            let sym = self.str_from(start);
-                            sym.chars().count() == 1 && c == sym.chars().next().unwrap()
-                        }) =>
+                    if !UNICODE_ARRAY.iter().any(|&(c, _, _)| {
+                        let sym = self.str_from(start);
+                        sym.chars().count() == 1 && c == sym.chars().next().unwrap()
+                    }) =>
                 {
                     let sym = nfc_normalize(self.str_from(start));
                     let span = self.mk_sp(start, self.pos);
-                    self.psess.bad_unicode_identifiers.borrow_mut().entry(sym).or_default()
+                    self.psess
+                        .bad_unicode_identifiers
+                        .borrow_mut()
+                        .entry(sym)
+                        .or_default()
                         .push(span);
                     token::Ident(sym, IdentIsRaw::No)
                 }
@@ -249,9 +257,9 @@ impl<'psess, 'src> StringReader<'psess, 'src> {
                     let suffix = if suffix_start < self.pos {
                         let string = self.str_from(suffix_start);
                         if string == "_" {
-                            self
-                                .dcx()
-                                .emit_err(errors::UnderscoreLiteralSuffix { span: self.mk_sp(suffix_start, self.pos) });
+                            self.dcx().emit_err(errors::UnderscoreLiteralSuffix {
+                                span: self.mk_sp(suffix_start, self.pos),
+                            });
                             None
                         } else {
                             Some(Symbol::intern(string))
@@ -269,12 +277,47 @@ impl<'psess, 'src> StringReader<'psess, 'src> {
                     self.last_lifetime = Some(self.mk_sp(start, start + BytePos(1)));
                     if starts_with_number {
                         let span = self.mk_sp(start, self.pos);
-                        self.dcx().struct_err("lifetimes cannot start with a number")
+                        self.dcx()
+                            .struct_err("lifetimes cannot start with a number")
                             .with_span(span)
                             .stash(span, StashKey::LifetimeIsChar);
                     }
                     let ident = Symbol::intern(lifetime_name);
-                    token::Lifetime(ident)
+                    token::Lifetime(ident, IdentIsRaw::No)
+                }
+                rustc_lexer::TokenKind::RawLifetime => {
+                    self.last_lifetime = Some(self.mk_sp(start, start + BytePos(1)));
+
+                    let ident_start = start + BytePos(3);
+                    let prefix_span = self.mk_sp(start, ident_start);
+
+                    if prefix_span.at_least_rust_2021() {
+                        let lifetime_name_without_tick = self.str_from(ident_start);
+                        // Put the `'` back onto the lifetime name.
+                        let mut lifetime_name = String::with_capacity(lifetime_name_without_tick.len() + 1);
+                        lifetime_name.push('\'');
+                        lifetime_name += lifetime_name_without_tick;
+                        let sym = Symbol::intern(&lifetime_name);
+
+                        token::Lifetime(sym, IdentIsRaw::Yes)
+                    } else {
+                        // Otherwise, this should be parsed like `'r`. Warn about it though.
+                        self.psess.buffer_lint(
+                            RUST_2021_PREFIXES_INCOMPATIBLE_SYNTAX,
+                            prefix_span,
+                            ast::CRATE_NODE_ID,
+                            BuiltinLintDiag::RawPrefix(prefix_span),
+                        );
+
+                        // Reset the state so we just lex the `'r`.
+                        let lt_start = start + BytePos(2);
+                        self.pos = lt_start;
+                        self.cursor = Cursor::new(&str_before[2 as usize..]);
+
+                        let lifetime_name = self.str_from(start);
+                        let ident = Symbol::intern(lifetime_name);
+                        token::Lifetime(ident, IdentIsRaw::No)
+                    }
                 }
                 rustc_lexer::TokenKind::Semi => token::Semi,
                 rustc_lexer::TokenKind::Comma => token::Comma,
@@ -331,16 +374,19 @@ impl<'psess, 'src> StringReader<'psess, 'src> {
                     // first remove compound tokens like `<<` from `rustc_lexer`, and then add
                     // fancier error recovery to it, as there will be less overall work to do this
                     // way.
-                    let (token, sugg) = unicode_chars::check_for_substitution(self, start, c, repeats+1);
+                    let (token, sugg) =
+                        unicode_chars::check_for_substitution(self, start, c, repeats + 1);
                     self.dcx().emit_err(errors::UnknownTokenStart {
                         span: self.mk_sp(start, self.pos + Pos::from_usize(repeats * c.len_utf8())),
                         escaped: escaped_char(c),
                         sugg,
-                        null: if c == '\x00' {Some(errors::UnknownTokenNull)} else {None},
+                        null: if c == '\x00' { Some(errors::UnknownTokenNull) } else { None },
                         repeat: if repeats > 0 {
                             swallow_next_invalid = repeats;
                             Some(errors::UnknownTokenRepeat { repeats })
-                        } else {None}
+                        } else {
+                            None
+                        },
                     });
 
                     if let Some(token) = token {
@@ -699,7 +745,7 @@ impl<'psess, 'src> StringReader<'psess, 'src> {
 
         let expn_data = prefix_span.ctxt().outer_expn_data();
 
-        if expn_data.edition >= Edition::Edition2021 {
+        if expn_data.edition.at_least_rust_2021() {
             // In Rust 2021, this is a hard error.
             let sugg = if prefix == "rb" {
                 Some(errors::UnknownPrefixSugg::UseBr(prefix_span))
diff --git a/compiler/rustc_parse/src/parser/attr_wrapper.rs b/compiler/rustc_parse/src/parser/attr_wrapper.rs
index 49df2811d52..205cca830b2 100644
--- a/compiler/rustc_parse/src/parser/attr_wrapper.rs
+++ b/compiler/rustc_parse/src/parser/attr_wrapper.rs
@@ -1,3 +1,4 @@
+use std::borrow::Cow;
 use std::{iter, mem};
 
 use rustc_ast::token::{Delimiter, Token, TokenKind};
@@ -6,6 +7,7 @@ use rustc_ast::tokenstream::{
     Spacing, ToAttrTokenStream,
 };
 use rustc_ast::{self as ast, AttrVec, Attribute, HasAttrs, HasTokens};
+use rustc_data_structures::fx::FxHashSet;
 use rustc_errors::PResult;
 use rustc_session::parse::ParseSess;
 use rustc_span::{sym, Span, DUMMY_SP};
@@ -134,9 +136,8 @@ impl ToAttrTokenStream for LazyAttrTokenStreamImpl {
                 node_replacements.array_windows()
             {
                 assert!(
-                    node_range.0.end <= next_node_range.0.start
-                        || node_range.0.end >= next_node_range.0.end,
-                    "Node ranges should be disjoint or nested: ({:?}, {:?}) ({:?}, {:?})",
+                    node_range.0.end <= next_node_range.0.start,
+                    "Node ranges should be disjoint: ({:?}, {:?}) ({:?}, {:?})",
                     node_range,
                     tokens,
                     next_node_range,
@@ -144,20 +145,8 @@ impl ToAttrTokenStream for LazyAttrTokenStreamImpl {
                 );
             }
 
-            // Process the replace ranges, starting from the highest start
-            // position and working our way back. If have tokens like:
-            //
-            // `#[cfg(FALSE)] struct Foo { #[cfg(FALSE)] field: bool }`
-            //
-            // Then we will generate replace ranges for both
-            // the `#[cfg(FALSE)] field: bool` and the entire
-            // `#[cfg(FALSE)] struct Foo { #[cfg(FALSE)] field: bool }`
-            //
-            // By starting processing from the replace range with the greatest
-            // start position, we ensure that any (outer) replace range which
-            // encloses another (inner) replace range will fully overwrite the
-            // inner range's replacement.
-            for (node_range, target) in node_replacements.into_iter().rev() {
+            // Process the replace ranges.
+            for (node_range, target) in node_replacements.into_iter() {
                 assert!(
                     !node_range.0.is_empty(),
                     "Cannot replace an empty node range: {:?}",
@@ -234,6 +223,8 @@ impl<'a> Parser<'a> {
         force_collect: ForceCollect,
         f: impl FnOnce(&mut Self, AttrVec) -> PResult<'a, (R, Trailing, UsePreAttrPos)>,
     ) -> PResult<'a, R> {
+        let possible_capture_mode = self.capture_cfg;
+
         // We must collect if anything could observe the collected tokens, i.e.
         // if any of the following conditions hold.
         // - We are force collecting tokens (because force collection requires
@@ -244,9 +235,9 @@ impl<'a> Parser<'a> {
             // - Our target supports custom inner attributes (custom
             //   inner attribute invocation might require token capturing).
             || R::SUPPORTS_CUSTOM_INNER_ATTRS
-            // - We are in `capture_cfg` mode (which requires tokens if
+            // - We are in "possible capture mode" (which requires tokens if
             //   the parsed node has `#[cfg]` or `#[cfg_attr]` attributes).
-            || self.capture_cfg;
+            || possible_capture_mode;
         if !needs_collection {
             return Ok(f(self, attrs.attrs)?.0);
         }
@@ -267,18 +258,48 @@ impl<'a> Parser<'a> {
             res?
         };
 
-        // When we're not in `capture_cfg` mode, then skip collecting and
-        // return early if either of the following conditions hold.
         // - `None`: Our target doesn't support tokens at all (e.g. `NtIdent`).
+        // - `Some(None)`: Our target supports tokens and has none.
         // - `Some(Some(_))`: Our target already has tokens set (e.g. we've
-        //   parsed something like `#[my_attr] $item`). The actual parsing code
-        //   takes care of prepending any attributes to the nonterminal, so we
-        //   don't need to modify the already captured tokens.
+        //   parsed something like `#[my_attr] $item`).
+        let ret_can_hold_tokens = matches!(ret.tokens_mut(), Some(None));
+
+        // Ignore any attributes we've previously processed. This happens when
+        // an inner call to `collect_tokens` returns an AST node and then an
+        // outer call ends up with the same AST node without any additional
+        // wrapping layer.
+        let mut seen_indices = FxHashSet::default();
+        for (i, attr) in ret.attrs().iter().enumerate() {
+            let is_unseen = self.capture_state.seen_attrs.insert(attr.id);
+            if !is_unseen {
+                seen_indices.insert(i);
+            }
+        }
+        let ret_attrs: Cow<'_, [Attribute]> =
+            if seen_indices.is_empty() {
+                Cow::Borrowed(ret.attrs())
+            } else {
+                let ret_attrs =
+                    ret.attrs()
+                        .iter()
+                        .enumerate()
+                        .filter_map(|(i, attr)| {
+                            if seen_indices.contains(&i) { None } else { Some(attr.clone()) }
+                        })
+                        .collect();
+                Cow::Owned(ret_attrs)
+            };
+
+        // When we're not in "definite capture mode", then skip collecting and
+        // return early if `ret` doesn't support tokens or already has some.
         //
         // Note that this check is independent of `force_collect`. There's no
         // need to collect tokens when we don't support tokens or already have
         // tokens.
-        if !self.capture_cfg && matches!(ret.tokens_mut(), None | Some(Some(_))) {
+        let definite_capture_mode = self.capture_cfg
+            && matches!(self.capture_state.capturing, Capturing::Yes)
+            && has_cfg_or_cfg_attr(&ret_attrs);
+        if !definite_capture_mode && !ret_can_hold_tokens {
             return Ok(ret);
         }
 
@@ -297,12 +318,12 @@ impl<'a> Parser<'a> {
             //   outer and inner attributes. So this check is more precise than
             //   the earlier `needs_tokens` check, and we don't need to
             //   check `R::SUPPORTS_CUSTOM_INNER_ATTRS`.)
-            || needs_tokens(ret.attrs())
-            // - We are in `capture_cfg` mode and there are `#[cfg]` or
-            //   `#[cfg_attr]` attributes. (During normal non-`capture_cfg`
-            //   parsing, we don't need any special capturing for those
-            //   attributes, because they're builtin.)
-            || (self.capture_cfg && has_cfg_or_cfg_attr(ret.attrs()));
+            || needs_tokens(&ret_attrs)
+            // - We are in "definite capture mode", which requires that there
+            //   are `#[cfg]` or `#[cfg_attr]` attributes. (During normal
+            //   non-`capture_cfg` parsing, we don't need any special capturing
+            //   for those attributes, because they're builtin.)
+            || definite_capture_mode;
         if !needs_collection {
             return Ok(ret);
         }
@@ -336,7 +357,7 @@ impl<'a> Parser<'a> {
         // `Parser::parse_inner_attributes`, and pair them in a `ParserReplacement` with `None`,
         // which means the relevant tokens will be removed. (More details below.)
         let mut inner_attr_parser_replacements = Vec::new();
-        for attr in ret.attrs() {
+        for attr in ret_attrs.iter() {
             if attr.style == ast::AttrStyle::Inner {
                 if let Some(inner_attr_parser_range) =
                     self.capture_state.inner_attr_parser_ranges.remove(&attr.id)
@@ -359,11 +380,10 @@ impl<'a> Parser<'a> {
             // from `ParserRange` form to `NodeRange` form. We will perform the actual
             // replacement only when we convert the `LazyAttrTokenStream` to an
             // `AttrTokenStream`.
-            self.capture_state.parser_replacements
-                [parser_replacements_start..parser_replacements_end]
-                .iter()
-                .cloned()
-                .chain(inner_attr_parser_replacements.iter().cloned())
+            self.capture_state
+                .parser_replacements
+                .drain(parser_replacements_start..parser_replacements_end)
+                .chain(inner_attr_parser_replacements.into_iter())
                 .map(|(parser_range, data)| {
                     (NodeRange::new(parser_range, collect_pos.start_pos), data)
                 })
@@ -399,20 +419,12 @@ impl<'a> Parser<'a> {
             break_last_token: self.break_last_token,
             node_replacements,
         });
+        let mut tokens_used = false;
 
-        // If we support tokens and don't already have them, store the newly captured tokens.
-        if let Some(target_tokens @ None) = ret.tokens_mut() {
-            *target_tokens = Some(tokens.clone());
-        }
-
-        // If `capture_cfg` is set and we're inside a recursive call to
-        // `collect_tokens`, then we need to register a replace range if we
-        // have `#[cfg]` or `#[cfg_attr]`. This allows us to run eager
-        // cfg-expansion on the captured token stream.
-        if self.capture_cfg
-            && matches!(self.capture_state.capturing, Capturing::Yes)
-            && has_cfg_or_cfg_attr(ret.attrs())
-        {
+        // If in "definite capture mode" we need to register a replace range
+        // for the `#[cfg]` and/or `#[cfg_attr]` attrs. This allows us to run
+        // eager cfg-expansion on the captured token stream.
+        if definite_capture_mode {
             assert!(!self.break_last_token, "Should not have unglued last token with cfg attr");
 
             // What is the status here when parsing the example code at the top of this method?
@@ -429,7 +441,9 @@ impl<'a> Parser<'a> {
             // cfg-expand this AST node.
             let start_pos =
                 if has_outer_attrs { attrs.start_pos.unwrap() } else { collect_pos.start_pos };
-            let target = AttrsTarget { attrs: ret.attrs().iter().cloned().collect(), tokens };
+            let target =
+                AttrsTarget { attrs: ret_attrs.iter().cloned().collect(), tokens: tokens.clone() };
+            tokens_used = true;
             self.capture_state
                 .parser_replacements
                 .push((ParserRange(start_pos..end_pos), Some(target)));
@@ -438,7 +452,16 @@ impl<'a> Parser<'a> {
             // the outermost call to this method.
             self.capture_state.parser_replacements.clear();
             self.capture_state.inner_attr_parser_ranges.clear();
+            self.capture_state.seen_attrs.clear();
         }
+
+        // If we support tokens and don't already have them, store the newly captured tokens.
+        if let Some(target_tokens @ None) = ret.tokens_mut() {
+            tokens_used = true;
+            *target_tokens = Some(tokens);
+        }
+
+        assert!(tokens_used); // check we didn't create `tokens` unnecessarily
         Ok(ret)
     }
 }
@@ -510,9 +533,11 @@ fn make_attr_token_stream(
 }
 
 /// Tokens are needed if:
-/// - any non-single-segment attributes (other than doc comments) are present; or
-/// - any `cfg_attr` attributes are present;
-/// - any single-segment, non-builtin attributes are present.
+/// - any non-single-segment attributes (other than doc comments) are present,
+///   e.g. `rustfmt::skip`; or
+/// - any `cfg_attr` attributes are present; or
+/// - any single-segment, non-builtin attributes are present, e.g. `derive`,
+///   `test`, `global_allocator`.
 fn needs_tokens(attrs: &[ast::Attribute]) -> bool {
     attrs.iter().any(|attr| match attr.ident() {
         None => !attr.is_doc_comment(),
diff --git a/compiler/rustc_parse/src/parser/diagnostics.rs b/compiler/rustc_parse/src/parser/diagnostics.rs
index fcdc10c0837..f6f66821df7 100644
--- a/compiler/rustc_parse/src/parser/diagnostics.rs
+++ b/compiler/rustc_parse/src/parser/diagnostics.rs
@@ -19,8 +19,9 @@ use rustc_errors::{
     Subdiagnostic,
 };
 use rustc_session::errors::ExprParenthesesNeeded;
+use rustc_span::edit_distance::find_best_match_for_name;
 use rustc_span::source_map::Spanned;
-use rustc_span::symbol::{kw, sym, Ident};
+use rustc_span::symbol::{kw, sym, AllKeywords, Ident};
 use rustc_span::{BytePos, Span, SpanSnippetError, Symbol, DUMMY_SP};
 use thin_vec::{thin_vec, ThinVec};
 use tracing::{debug, trace};
@@ -203,6 +204,37 @@ impl std::fmt::Display for UnaryFixity {
     }
 }
 
+#[derive(Debug, rustc_macros::Subdiagnostic)]
+#[suggestion(
+    parse_misspelled_kw,
+    applicability = "machine-applicable",
+    code = "{similar_kw}",
+    style = "verbose"
+)]
+struct MisspelledKw {
+    similar_kw: String,
+    #[primary_span]
+    span: Span,
+    is_incorrect_case: bool,
+}
+
+/// Checks if the given `lookup` identifier is similar to any keyword symbol in `candidates`.
+fn find_similar_kw(lookup: Ident, candidates: &[Symbol]) -> Option<MisspelledKw> {
+    let lowercase = lookup.name.as_str().to_lowercase();
+    let lowercase_sym = Symbol::intern(&lowercase);
+    if candidates.contains(&lowercase_sym) {
+        Some(MisspelledKw { similar_kw: lowercase, span: lookup.span, is_incorrect_case: true })
+    } else if let Some(similar_sym) = find_best_match_for_name(candidates, lookup.name, None) {
+        Some(MisspelledKw {
+            similar_kw: similar_sym.to_string(),
+            span: lookup.span,
+            is_incorrect_case: false,
+        })
+    } else {
+        None
+    }
+}
+
 struct MultiSugg {
     msg: String,
     patches: Vec<(Span, String)>,
@@ -638,9 +670,9 @@ impl<'a> Parser<'a> {
             let concat = Symbol::intern(&format!("{prev}{cur}"));
             let ident = Ident::new(concat, DUMMY_SP);
             if ident.is_used_keyword() || ident.is_reserved() || ident.is_raw_guess() {
-                let span = self.prev_token.span.to(self.token.span);
+                let concat_span = self.prev_token.span.to(self.token.span);
                 err.span_suggestion_verbose(
-                    span,
+                    concat_span,
                     format!("consider removing the space to spell keyword `{concat}`"),
                     concat,
                     Applicability::MachineApplicable,
@@ -741,9 +773,55 @@ impl<'a> Parser<'a> {
             err.span_label(sp, label_exp);
             err.span_label(self.token.span, "unexpected token");
         }
+
+        // Check for misspelled keywords if there are no suggestions added to the diagnostic.
+        if err.suggestions.as_ref().is_ok_and(|code_suggestions| code_suggestions.is_empty()) {
+            self.check_for_misspelled_kw(&mut err, &expected);
+        }
         Err(err)
     }
 
+    /// Checks if the current token or the previous token are misspelled keywords
+    /// and adds a helpful suggestion.
+    fn check_for_misspelled_kw(&self, err: &mut Diag<'_>, expected: &[TokenType]) {
+        let Some((curr_ident, _)) = self.token.ident() else {
+            return;
+        };
+        let expected_tokens: &[TokenType] =
+            expected.len().checked_sub(10).map_or(&expected, |index| &expected[index..]);
+        let expected_keywords: Vec<Symbol> = expected_tokens
+            .iter()
+            .filter_map(|token| if let TokenType::Keyword(kw) = token { Some(*kw) } else { None })
+            .collect();
+
+        // When there are a few keywords in the last ten elements of `self.expected_tokens` and the current
+        // token is an identifier, it's probably a misspelled keyword.
+        // This handles code like `async Move {}`, misspelled `if` in match guard, misspelled `else` in `if`-`else`
+        // and mispelled `where` in a where clause.
+        if !expected_keywords.is_empty()
+            && !curr_ident.is_used_keyword()
+            && let Some(misspelled_kw) = find_similar_kw(curr_ident, &expected_keywords)
+        {
+            err.subdiagnostic(misspelled_kw);
+        } else if let Some((prev_ident, _)) = self.prev_token.ident()
+            && !prev_ident.is_used_keyword()
+        {
+            // We generate a list of all keywords at runtime rather than at compile time
+            // so that it gets generated only when the diagnostic needs it.
+            // Also, it is unlikely that this list is generated multiple times because the
+            // parser halts after execution hits this path.
+            let all_keywords = AllKeywords::new().collect_used(|| prev_ident.span.edition());
+
+            // Otherwise, check the previous token with all the keywords as possible candidates.
+            // This handles code like `Struct Human;` and `While a < b {}`.
+            // We check the previous token only when the current token is an identifier to avoid false
+            // positives like suggesting keyword `for` for `extern crate foo {}`.
+            if let Some(misspelled_kw) = find_similar_kw(prev_ident, &all_keywords) {
+                err.subdiagnostic(misspelled_kw);
+            }
+        }
+    }
+
     /// The user has written `#[attr] expr` which is unsupported. (#106020)
     pub(super) fn attr_on_non_tail_expr(&self, expr: &Expr) -> ErrorGuaranteed {
         // Missing semicolon typo error.
@@ -846,6 +924,7 @@ impl<'a> Parser<'a> {
                 );
             }
         }
+
         err.emit()
     }
 
diff --git a/compiler/rustc_parse/src/parser/expr.rs b/compiler/rustc_parse/src/parser/expr.rs
index 84684e808d9..ecc4cd96faf 100644
--- a/compiler/rustc_parse/src/parser/expr.rs
+++ b/compiler/rustc_parse/src/parser/expr.rs
@@ -2050,7 +2050,7 @@ impl<'a> Parser<'a> {
         };
         // On an error path, eagerly consider a lifetime to be an unclosed character lit, if that
         // makes sense.
-        if let Some(ident) = self.token.lifetime()
+        if let Some((ident, IdentIsRaw::No)) = self.token.lifetime()
             && could_be_unclosed_char_literal(ident)
         {
             let lt = self.expect_lifetime();
@@ -2925,9 +2925,9 @@ impl<'a> Parser<'a> {
     }
 
     pub(crate) fn eat_label(&mut self) -> Option<Label> {
-        if let Some(ident) = self.token.lifetime() {
+        if let Some((ident, is_raw)) = self.token.lifetime() {
             // Disallow `'fn`, but with a better error message than `expect_lifetime`.
-            if ident.without_first_quote().is_reserved() {
+            if matches!(is_raw, IdentIsRaw::No) && ident.without_first_quote().is_reserved() {
                 self.dcx().emit_err(errors::InvalidLabel { span: ident.span, name: ident.name });
             }
 
diff --git a/compiler/rustc_parse/src/parser/mod.rs b/compiler/rustc_parse/src/parser/mod.rs
index 61e3fa2e6c5..3ee6e742d1b 100644
--- a/compiler/rustc_parse/src/parser/mod.rs
+++ b/compiler/rustc_parse/src/parser/mod.rs
@@ -35,6 +35,7 @@ use rustc_ast_pretty::pprust;
 use rustc_data_structures::fx::FxHashMap;
 use rustc_data_structures::sync::Lrc;
 use rustc_errors::{Applicability, Diag, FatalError, MultiSpan, PResult};
+use rustc_index::interval::IntervalSet;
 use rustc_session::parse::ParseSess;
 use rustc_span::symbol::{kw, sym, Ident, Symbol};
 use rustc_span::{Span, DUMMY_SP};
@@ -183,7 +184,7 @@ pub struct Parser<'a> {
 // This type is used a lot, e.g. it's cloned when matching many declarative macro rules with nonterminals. Make sure
 // it doesn't unintentionally get bigger.
 #[cfg(target_pointer_width = "64")]
-rustc_data_structures::static_assert_size!(Parser<'_>, 256);
+rustc_data_structures::static_assert_size!(Parser<'_>, 288);
 
 /// Stores span information about a closure.
 #[derive(Clone, Debug)]
@@ -238,7 +239,8 @@ impl NodeRange {
     // is the position of the function's start token. This gives
     // `NodeRange(10..15)`.
     fn new(ParserRange(parser_range): ParserRange, start_pos: u32) -> NodeRange {
-        assert!(parser_range.start >= start_pos && parser_range.end >= start_pos);
+        assert!(!parser_range.is_empty());
+        assert!(parser_range.start >= start_pos);
         NodeRange((parser_range.start - start_pos)..(parser_range.end - start_pos))
     }
 }
@@ -260,6 +262,9 @@ struct CaptureState {
     capturing: Capturing,
     parser_replacements: Vec<ParserReplacement>,
     inner_attr_parser_ranges: FxHashMap<AttrId, ParserRange>,
+    // `IntervalSet` is good for perf because attrs are mostly added to this
+    // set in contiguous ranges.
+    seen_attrs: IntervalSet<AttrId>,
 }
 
 /// Iterator over a `TokenStream` that produces `Token`s. It's a bit odd that
@@ -457,6 +462,7 @@ impl<'a> Parser<'a> {
                 capturing: Capturing::No,
                 parser_replacements: Vec::new(),
                 inner_attr_parser_ranges: Default::default(),
+                seen_attrs: IntervalSet::new(u32::MAX as usize),
             },
             current_closure: None,
             recovery: Recovery::Allowed,
@@ -1666,7 +1672,7 @@ enum FlatToken {
 pub enum ParseNtResult {
     Tt(TokenTree),
     Ident(Ident, IdentIsRaw),
-    Lifetime(Ident),
+    Lifetime(Ident, IdentIsRaw),
 
     /// This case will eventually be removed, along with `Token::Interpolate`.
     Nt(Lrc<Nonterminal>),
diff --git a/compiler/rustc_parse/src/parser/nonterminal.rs b/compiler/rustc_parse/src/parser/nonterminal.rs
index e66d0df012b..44b169c881e 100644
--- a/compiler/rustc_parse/src/parser/nonterminal.rs
+++ b/compiler/rustc_parse/src/parser/nonterminal.rs
@@ -88,7 +88,7 @@ impl<'a> Parser<'a> {
             },
             NonterminalKind::Pat(pat_kind) => token.can_begin_pattern(pat_kind),
             NonterminalKind::Lifetime => match &token.kind {
-                token::Lifetime(_) | token::NtLifetime(..) => true,
+                token::Lifetime(..) | token::NtLifetime(..) => true,
                 _ => false,
             },
             NonterminalKind::TT | NonterminalKind::Item | NonterminalKind::Stmt => {
@@ -171,9 +171,9 @@ impl<'a> Parser<'a> {
             NonterminalKind::Lifetime => {
                 // We want to keep `'keyword` parsing, just like `keyword` is still
                 // an ident for nonterminal purposes.
-                return if let Some(ident) = self.token.lifetime() {
+                return if let Some((ident, is_raw)) = self.token.lifetime() {
                     self.bump();
-                    Ok(ParseNtResult::Lifetime(ident))
+                    Ok(ParseNtResult::Lifetime(ident, is_raw))
                 } else {
                     Err(self.dcx().create_err(UnexpectedNonterminal::Lifetime {
                         span: self.token.span,
diff --git a/compiler/rustc_parse/src/parser/pat.rs b/compiler/rustc_parse/src/parser/pat.rs
index f87b5649654..cbd35ffdfa9 100644
--- a/compiler/rustc_parse/src/parser/pat.rs
+++ b/compiler/rustc_parse/src/parser/pat.rs
@@ -1,6 +1,6 @@
 use rustc_ast::mut_visit::{walk_pat, MutVisitor};
 use rustc_ast::ptr::P;
-use rustc_ast::token::{self, BinOpToken, Delimiter, Token};
+use rustc_ast::token::{self, BinOpToken, Delimiter, IdentIsRaw, Token};
 use rustc_ast::{
     self as ast, AttrVec, BindingMode, ByRef, Expr, ExprKind, MacCall, Mutability, Pat, PatField,
     PatFieldsRest, PatKind, Path, QSelf, RangeEnd, RangeSyntax,
@@ -548,7 +548,7 @@ impl<'a> Parser<'a> {
                     None => PatKind::Path(qself, path),
                 }
             }
-        } else if let Some(lt) = self.token.lifetime()
+        } else if let Some((lt, IdentIsRaw::No)) = self.token.lifetime()
             // In pattern position, we're totally fine with using "next token isn't colon"
             // as a heuristic. We could probably just always try to recover if it's a lifetime,
             // because we never have `'a: label {}` in a pattern position anyways, but it does
@@ -689,7 +689,7 @@ impl<'a> Parser<'a> {
     /// Parse `&pat` / `&mut pat`.
     fn parse_pat_deref(&mut self, expected: Option<Expected>) -> PResult<'a, PatKind> {
         self.expect_and()?;
-        if let Some(lifetime) = self.token.lifetime() {
+        if let Some((lifetime, _)) = self.token.lifetime() {
             self.bump(); // `'a`
 
             self.dcx().emit_err(UnexpectedLifetimeInPattern {
diff --git a/compiler/rustc_parse/src/parser/ty.rs b/compiler/rustc_parse/src/parser/ty.rs
index 52f0b1c1b04..dd1cc75c7ff 100644
--- a/compiler/rustc_parse/src/parser/ty.rs
+++ b/compiler/rustc_parse/src/parser/ty.rs
@@ -1,5 +1,5 @@
 use rustc_ast::ptr::P;
-use rustc_ast::token::{self, BinOpToken, Delimiter, Token, TokenKind};
+use rustc_ast::token::{self, BinOpToken, Delimiter, IdentIsRaw, Token, TokenKind};
 use rustc_ast::util::case::Case;
 use rustc_ast::{
     self as ast, BareFnTy, BoundAsyncness, BoundConstness, BoundPolarity, FnRetTy, GenericBound,
@@ -1285,8 +1285,9 @@ impl<'a> Parser<'a> {
 
     /// Parses a single lifetime `'a` or panics.
     pub(super) fn expect_lifetime(&mut self) -> Lifetime {
-        if let Some(ident) = self.token.lifetime() {
-            if ident.without_first_quote().is_reserved()
+        if let Some((ident, is_raw)) = self.token.lifetime() {
+            if matches!(is_raw, IdentIsRaw::No)
+                && ident.without_first_quote().is_reserved()
                 && ![kw::UnderscoreLifetime, kw::StaticLifetime].contains(&ident.name)
             {
                 self.dcx().emit_err(errors::KeywordLifetime { span: ident.span });
diff --git a/compiler/rustc_resolve/src/late.rs b/compiler/rustc_resolve/src/late.rs
index 79c42456cf8..917cb81aa51 100644
--- a/compiler/rustc_resolve/src/late.rs
+++ b/compiler/rustc_resolve/src/late.rs
@@ -2062,7 +2062,10 @@ impl<'a: 'ast, 'b, 'ast, 'tcx> LateResolutionVisitor<'a, 'b, 'ast, 'tcx> {
                                 lint::builtin::ELIDED_NAMED_LIFETIMES,
                                 missing.id_for_lint,
                                 missing.span,
-                                BuiltinLintDiag::ElidedIsStatic { elided: missing.span },
+                                BuiltinLintDiag::ElidedNamedLifetimes {
+                                    elided: (missing.span, missing.kind),
+                                    resolution: lint::ElidedLifetimeResolution::Static,
+                                },
                             );
                         }
                     }
@@ -2072,9 +2075,12 @@ impl<'a: 'ast, 'b, 'ast, 'tcx> LateResolutionVisitor<'a, 'b, 'ast, 'tcx> {
                             lint::builtin::ELIDED_NAMED_LIFETIMES,
                             missing.id_for_lint,
                             missing.span,
-                            BuiltinLintDiag::ElidedIsParam {
-                                elided: missing.span,
-                                param: (tcx.item_name(param.into()), tcx.source_span(param)),
+                            BuiltinLintDiag::ElidedNamedLifetimes {
+                                elided: (missing.span, missing.kind),
+                                resolution: lint::ElidedLifetimeResolution::Param(
+                                    tcx.item_name(param.into()),
+                                    tcx.source_span(param),
+                                ),
                             },
                         );
                     }
diff --git a/compiler/rustc_span/src/symbol.rs b/compiler/rustc_span/src/symbol.rs
index 418d1078900..7572d57309c 100644
--- a/compiler/rustc_span/src/symbol.rs
+++ b/compiler/rustc_span/src/symbol.rs
@@ -20,7 +20,8 @@ mod tests;
 
 // The proc macro code for this is in `compiler/rustc_macros/src/symbols.rs`.
 symbols! {
-    // If you modify this list, adjust `is_special` and `is_used_keyword`/`is_unused_keyword`.
+    // If you modify this list, adjust `is_special`, `is_used_keyword`/`is_unused_keyword`
+    // and `AllKeywords`.
     // But this should rarely be necessary if the keywords are kept in alphabetic order.
     Keywords {
         // Special reserved identifiers used internally for elided lifetimes,
@@ -2579,3 +2580,42 @@ impl Ident {
         self.name.can_be_raw() && self.is_reserved()
     }
 }
+
+/// An iterator over all the keywords in Rust.
+#[derive(Copy, Clone)]
+pub struct AllKeywords {
+    curr_idx: u32,
+    end_idx: u32,
+}
+
+impl AllKeywords {
+    /// Initialize a new iterator over all the keywords.
+    ///
+    /// *Note:* Please update this if a new keyword is added beyond the current
+    /// range.
+    pub fn new() -> Self {
+        AllKeywords { curr_idx: kw::Empty.as_u32(), end_idx: kw::Yeet.as_u32() }
+    }
+
+    /// Collect all the keywords in a given edition into a vector.
+    pub fn collect_used(&self, edition: impl Copy + FnOnce() -> Edition) -> Vec<Symbol> {
+        self.filter(|&keyword| {
+            keyword.is_used_keyword_always() || keyword.is_used_keyword_conditional(edition)
+        })
+        .collect()
+    }
+}
+
+impl Iterator for AllKeywords {
+    type Item = Symbol;
+
+    fn next(&mut self) -> Option<Self::Item> {
+        if self.curr_idx <= self.end_idx {
+            let keyword = Symbol::new(self.curr_idx);
+            self.curr_idx += 1;
+            Some(keyword)
+        } else {
+            None
+        }
+    }
+}
diff --git a/compiler/rustc_target/src/lib.rs b/compiler/rustc_target/src/lib.rs
index d7c66d6f5e3..2121c4110dd 100644
--- a/compiler/rustc_target/src/lib.rs
+++ b/compiler/rustc_target/src/lib.rs
@@ -9,7 +9,6 @@
 
 // tidy-alphabetical-start
 #![allow(internal_features)]
-#![cfg_attr(bootstrap, feature(min_exhaustive_patterns))]
 #![doc(html_root_url = "https://doc.rust-lang.org/nightly/nightly-rustc/")]
 #![doc(rust_logo)]
 #![feature(assert_matches)]
diff --git a/compiler/rustc_target/src/spec/mod.rs b/compiler/rustc_target/src/spec/mod.rs
index 58d47c201f0..c3e7f74c564 100644
--- a/compiler/rustc_target/src/spec/mod.rs
+++ b/compiler/rustc_target/src/spec/mod.rs
@@ -1645,6 +1645,7 @@ supported_targets! {
     ("x86_64-unknown-haiku", x86_64_unknown_haiku),
 
     ("i686-unknown-hurd-gnu", i686_unknown_hurd_gnu),
+    ("x86_64-unknown-hurd-gnu", x86_64_unknown_hurd_gnu),
 
     ("aarch64-apple-darwin", aarch64_apple_darwin),
     ("arm64e-apple-darwin", arm64e_apple_darwin),
diff --git a/compiler/rustc_target/src/spec/targets/x86_64_unknown_hurd_gnu.rs b/compiler/rustc_target/src/spec/targets/x86_64_unknown_hurd_gnu.rs
new file mode 100644
index 00000000000..6461ece5dd1
--- /dev/null
+++ b/compiler/rustc_target/src/spec/targets/x86_64_unknown_hurd_gnu.rs
@@ -0,0 +1,26 @@
+use crate::spec::{base, Cc, LinkerFlavor, Lld, StackProbeType, Target};
+
+pub(crate) fn target() -> Target {
+    let mut base = base::hurd_gnu::opts();
+    base.cpu = "x86-64".into();
+    base.plt_by_default = false;
+    base.max_atomic_width = Some(64);
+    base.add_pre_link_args(LinkerFlavor::Gnu(Cc::Yes, Lld::No), &["-m64"]);
+    base.stack_probes = StackProbeType::Inline;
+    base.supports_xray = true;
+
+    Target {
+        llvm_target: "x86_64-unknown-hurd-gnu".into(),
+        metadata: crate::spec::TargetMetadata {
+            description: Some("64-bit GNU/Hurd".into()),
+            tier: Some(3),
+            host_tools: Some(true),
+            std: Some(true),
+        },
+        pointer_width: 64,
+        data_layout:
+            "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128".into(),
+        arch: "x86_64".into(),
+        options: base,
+    }
+}
diff --git a/compiler/rustc_trait_selection/src/error_reporting/infer/need_type_info.rs b/compiler/rustc_trait_selection/src/error_reporting/infer/need_type_info.rs
index a93b633ce1a..cf9891f15ad 100644
--- a/compiler/rustc_trait_selection/src/error_reporting/infer/need_type_info.rs
+++ b/compiler/rustc_trait_selection/src/error_reporting/infer/need_type_info.rs
@@ -1296,6 +1296,9 @@ impl<'a, 'tcx> Visitor<'tcx> for FindInferSourceVisitor<'a, 'tcx> {
             && let Some(def_id) = self.typeck_results.type_dependent_def_id(expr.hir_id)
             && self.tecx.tcx.trait_of_item(def_id).is_some()
             && !has_impl_trait(def_id)
+            // FIXME(fn_delegation): In delegation item argument spans are equal to last path
+            // segment. This leads to ICE's when emitting `multipart_suggestion`.
+            && tcx.hir().opt_delegation_sig_id(expr.hir_id.owner.def_id).is_none()
         {
             let successor =
                 method_args.get(0).map_or_else(|| (")", span.hi()), |arg| (", ", arg.span.lo()));
diff --git a/compiler/rustc_transmute/src/layout/nfa.rs b/compiler/rustc_transmute/src/layout/nfa.rs
index 5db5a8f222d..3b49c59fa68 100644
--- a/compiler/rustc_transmute/src/layout/nfa.rs
+++ b/compiler/rustc_transmute/src/layout/nfa.rs
@@ -87,8 +87,6 @@ where
     pub(crate) fn from_tree(tree: Tree<!, R>) -> Result<Self, Uninhabited> {
         Ok(match tree {
             Tree::Byte(b) => Self::from_byte(b),
-            #[cfg(bootstrap)]
-            Tree::Def(..) => unreachable!(),
             Tree::Ref(r) => Self::from_ref(r),
             Tree::Alt(alts) => {
                 let mut alts = alts.into_iter().map(Self::from_tree);
diff --git a/compiler/rustc_ty_utils/src/layout.rs b/compiler/rustc_ty_utils/src/layout.rs
index 234e1a6d55e..c23a7fec5a5 100644
--- a/compiler/rustc_ty_utils/src/layout.rs
+++ b/compiler/rustc_ty_utils/src/layout.rs
@@ -1001,7 +1001,13 @@ fn coroutine_layout<'tcx>(
         },
         fields: outer_fields,
         abi,
-        largest_niche: prefix.largest_niche,
+        // Suppress niches inside coroutines. If the niche is inside a field that is aliased (due to
+        // self-referentiality), getting the discriminant can cause aliasing violations.
+        // `UnsafeCell` blocks niches for the same reason, but we don't yet have `UnsafePinned` that
+        // would do the same for us here.
+        // See <https://github.com/rust-lang/rust/issues/63818>, <https://github.com/rust-lang/miri/issues/3780>.
+        // FIXME: Remove when <https://github.com/rust-lang/rust/issues/125735> is implemented and aliased coroutine fields are wrapped in `UnsafePinned`.
+        largest_niche: None,
         size,
         align,
         max_repr_align: None,
diff --git a/compiler/rustc_type_ir/src/fold.rs b/compiler/rustc_type_ir/src/fold.rs
index f49aa3431b5..64ce6fd69e6 100644
--- a/compiler/rustc_type_ir/src/fold.rs
+++ b/compiler/rustc_type_ir/src/fold.rs
@@ -91,8 +91,6 @@ pub trait TypeFoldable<I: Interner>: TypeVisitable<I> {
     fn fold_with<F: TypeFolder<I>>(self, folder: &mut F) -> Self {
         match self.try_fold_with(folder) {
             Ok(t) => t,
-            #[cfg(bootstrap)]
-            Err(e) => match e {},
         }
     }
 }
@@ -116,8 +114,6 @@ pub trait TypeSuperFoldable<I: Interner>: TypeFoldable<I> {
     fn super_fold_with<F: TypeFolder<I>>(self, folder: &mut F) -> Self {
         match self.try_super_fold_with(folder) {
             Ok(t) => t,
-            #[cfg(bootstrap)]
-            Err(e) => match e {},
         }
     }
 }
diff --git a/library/alloc/src/boxed.rs b/library/alloc/src/boxed.rs
index a924feaf15f..6dc75478700 100644
--- a/library/alloc/src/boxed.rs
+++ b/library/alloc/src/boxed.rs
@@ -272,7 +272,7 @@ impl<T> Box<T> {
     /// assert_eq!(*five, 5)
     /// ```
     #[cfg(not(no_global_oom_handling))]
-    #[stable(feature = "new_uninit", since = "CURRENT_RUSTC_VERSION")]
+    #[stable(feature = "new_uninit", since = "1.82.0")]
     #[must_use]
     #[inline]
     pub fn new_uninit() -> Box<mem::MaybeUninit<T>> {
@@ -663,7 +663,7 @@ impl<T> Box<[T]> {
     /// assert_eq!(*values, [1, 2, 3])
     /// ```
     #[cfg(not(no_global_oom_handling))]
-    #[stable(feature = "new_uninit", since = "CURRENT_RUSTC_VERSION")]
+    #[stable(feature = "new_uninit", since = "1.82.0")]
     #[must_use]
     pub fn new_uninit_slice(len: usize) -> Box<[mem::MaybeUninit<T>]> {
         unsafe { RawVec::with_capacity(len).into_box(len) }
@@ -930,7 +930,7 @@ impl<T, A: Allocator> Box<mem::MaybeUninit<T>, A> {
     ///
     /// assert_eq!(*five, 5)
     /// ```
-    #[stable(feature = "new_uninit", since = "CURRENT_RUSTC_VERSION")]
+    #[stable(feature = "new_uninit", since = "1.82.0")]
     #[inline]
     pub unsafe fn assume_init(self) -> Box<T, A> {
         let (raw, alloc) = Box::into_raw_with_allocator(self);
@@ -1003,7 +1003,7 @@ impl<T, A: Allocator> Box<[mem::MaybeUninit<T>], A> {
     ///
     /// assert_eq!(*values, [1, 2, 3])
     /// ```
-    #[stable(feature = "new_uninit", since = "CURRENT_RUSTC_VERSION")]
+    #[stable(feature = "new_uninit", since = "1.82.0")]
     #[inline]
     pub unsafe fn assume_init(self) -> Box<[T], A> {
         let (raw, alloc) = Box::into_raw_with_allocator(self);
diff --git a/library/alloc/src/collections/binary_heap/mod.rs b/library/alloc/src/collections/binary_heap/mod.rs
index 88701370c10..fe9f1010d32 100644
--- a/library/alloc/src/collections/binary_heap/mod.rs
+++ b/library/alloc/src/collections/binary_heap/mod.rs
@@ -1433,7 +1433,7 @@ pub struct Iter<'a, T: 'a> {
     iter: slice::Iter<'a, T>,
 }
 
-#[stable(feature = "default_iters_sequel", since = "CURRENT_RUSTC_VERSION")]
+#[stable(feature = "default_iters_sequel", since = "1.82.0")]
 impl<T> Default for Iter<'_, T> {
     /// Creates an empty `binary_heap::Iter`.
     ///
diff --git a/library/alloc/src/collections/btree/map.rs b/library/alloc/src/collections/btree/map.rs
index c7908578522..60e08b47e3d 100644
--- a/library/alloc/src/collections/btree/map.rs
+++ b/library/alloc/src/collections/btree/map.rs
@@ -2016,7 +2016,7 @@ impl<K, V> Default for Range<'_, K, V> {
     }
 }
 
-#[stable(feature = "default_iters_sequel", since = "CURRENT_RUSTC_VERSION")]
+#[stable(feature = "default_iters_sequel", since = "1.82.0")]
 impl<K, V> Default for RangeMut<'_, K, V> {
     /// Creates an empty `btree_map::RangeMut`.
     ///
@@ -2064,7 +2064,7 @@ impl<K, V> ExactSizeIterator for ValuesMut<'_, K, V> {
 #[stable(feature = "fused", since = "1.26.0")]
 impl<K, V> FusedIterator for ValuesMut<'_, K, V> {}
 
-#[stable(feature = "default_iters_sequel", since = "CURRENT_RUSTC_VERSION")]
+#[stable(feature = "default_iters_sequel", since = "1.82.0")]
 impl<K, V> Default for ValuesMut<'_, K, V> {
     /// Creates an empty `btree_map::ValuesMut`.
     ///
diff --git a/library/alloc/src/collections/vec_deque/into_iter.rs b/library/alloc/src/collections/vec_deque/into_iter.rs
index 7be3de16b2d..2b09a5e7ddc 100644
--- a/library/alloc/src/collections/vec_deque/into_iter.rs
+++ b/library/alloc/src/collections/vec_deque/into_iter.rs
@@ -121,8 +121,6 @@ impl<T, A: Allocator> Iterator for IntoIter<T, A> {
     {
         match self.try_fold(init, |b, item| Ok::<B, !>(f(b, item))) {
             Ok(b) => b,
-            #[cfg(bootstrap)]
-            Err(e) => match e {},
         }
     }
 
@@ -243,8 +241,6 @@ impl<T, A: Allocator> DoubleEndedIterator for IntoIter<T, A> {
     {
         match self.try_rfold(init, |b, item| Ok::<B, !>(f(b, item))) {
             Ok(b) => b,
-            #[cfg(bootstrap)]
-            Err(e) => match e {},
         }
     }
 }
diff --git a/library/alloc/src/collections/vec_deque/iter.rs b/library/alloc/src/collections/vec_deque/iter.rs
index 67b5b91c4d4..bf4dd66f476 100644
--- a/library/alloc/src/collections/vec_deque/iter.rs
+++ b/library/alloc/src/collections/vec_deque/iter.rs
@@ -28,7 +28,7 @@ impl<T: fmt::Debug> fmt::Debug for Iter<'_, T> {
     }
 }
 
-#[stable(feature = "default_iters_sequel", since = "CURRENT_RUSTC_VERSION")]
+#[stable(feature = "default_iters_sequel", since = "1.82.0")]
 impl<T> Default for Iter<'_, T> {
     /// Creates an empty `vec_deque::Iter`.
     ///
diff --git a/library/alloc/src/collections/vec_deque/iter_mut.rs b/library/alloc/src/collections/vec_deque/iter_mut.rs
index 2726e3e4252..7a349a1b4ed 100644
--- a/library/alloc/src/collections/vec_deque/iter_mut.rs
+++ b/library/alloc/src/collections/vec_deque/iter_mut.rs
@@ -28,7 +28,7 @@ impl<T: fmt::Debug> fmt::Debug for IterMut<'_, T> {
     }
 }
 
-#[stable(feature = "default_iters_sequel", since = "CURRENT_RUSTC_VERSION")]
+#[stable(feature = "default_iters_sequel", since = "1.82.0")]
 impl<T> Default for IterMut<'_, T> {
     /// Creates an empty `vec_deque::IterMut`.
     ///
diff --git a/library/alloc/src/rc.rs b/library/alloc/src/rc.rs
index 1b31a78394e..88c7a12db23 100644
--- a/library/alloc/src/rc.rs
+++ b/library/alloc/src/rc.rs
@@ -517,7 +517,7 @@ impl<T> Rc<T> {
     /// assert_eq!(*five, 5)
     /// ```
     #[cfg(not(no_global_oom_handling))]
-    #[stable(feature = "new_uninit", since = "CURRENT_RUSTC_VERSION")]
+    #[stable(feature = "new_uninit", since = "1.82.0")]
     #[must_use]
     pub fn new_uninit() -> Rc<mem::MaybeUninit<T>> {
         unsafe {
@@ -980,7 +980,7 @@ impl<T> Rc<[T]> {
     /// assert_eq!(*values, [1, 2, 3])
     /// ```
     #[cfg(not(no_global_oom_handling))]
-    #[stable(feature = "new_uninit", since = "CURRENT_RUSTC_VERSION")]
+    #[stable(feature = "new_uninit", since = "1.82.0")]
     #[must_use]
     pub fn new_uninit_slice(len: usize) -> Rc<[mem::MaybeUninit<T>]> {
         unsafe { Rc::from_ptr(Rc::allocate_for_slice(len)) }
@@ -1127,7 +1127,7 @@ impl<T, A: Allocator> Rc<mem::MaybeUninit<T>, A> {
     ///
     /// assert_eq!(*five, 5)
     /// ```
-    #[stable(feature = "new_uninit", since = "CURRENT_RUSTC_VERSION")]
+    #[stable(feature = "new_uninit", since = "1.82.0")]
     #[inline]
     pub unsafe fn assume_init(self) -> Rc<T, A> {
         let (ptr, alloc) = Rc::into_inner_with_allocator(self);
@@ -1167,7 +1167,7 @@ impl<T, A: Allocator> Rc<[mem::MaybeUninit<T>], A> {
     ///
     /// assert_eq!(*values, [1, 2, 3])
     /// ```
-    #[stable(feature = "new_uninit", since = "CURRENT_RUSTC_VERSION")]
+    #[stable(feature = "new_uninit", since = "1.82.0")]
     #[inline]
     pub unsafe fn assume_init(self) -> Rc<[T], A> {
         let (ptr, alloc) = Rc::into_inner_with_allocator(self);
diff --git a/library/alloc/src/sync.rs b/library/alloc/src/sync.rs
index 024a794f17b..43684f31cb7 100644
--- a/library/alloc/src/sync.rs
+++ b/library/alloc/src/sync.rs
@@ -520,7 +520,7 @@ impl<T> Arc<T> {
     /// ```
     #[cfg(not(no_global_oom_handling))]
     #[inline]
-    #[stable(feature = "new_uninit", since = "CURRENT_RUSTC_VERSION")]
+    #[stable(feature = "new_uninit", since = "1.82.0")]
     #[must_use]
     pub fn new_uninit() -> Arc<mem::MaybeUninit<T>> {
         unsafe {
@@ -1115,7 +1115,7 @@ impl<T> Arc<[T]> {
     /// ```
     #[cfg(not(no_global_oom_handling))]
     #[inline]
-    #[stable(feature = "new_uninit", since = "CURRENT_RUSTC_VERSION")]
+    #[stable(feature = "new_uninit", since = "1.82.0")]
     #[must_use]
     pub fn new_uninit_slice(len: usize) -> Arc<[mem::MaybeUninit<T>]> {
         unsafe { Arc::from_ptr(Arc::allocate_for_slice(len)) }
@@ -1262,7 +1262,7 @@ impl<T, A: Allocator> Arc<mem::MaybeUninit<T>, A> {
     ///
     /// assert_eq!(*five, 5)
     /// ```
-    #[stable(feature = "new_uninit", since = "CURRENT_RUSTC_VERSION")]
+    #[stable(feature = "new_uninit", since = "1.82.0")]
     #[must_use = "`self` will be dropped if the result is not used"]
     #[inline]
     pub unsafe fn assume_init(self) -> Arc<T, A> {
@@ -1303,7 +1303,7 @@ impl<T, A: Allocator> Arc<[mem::MaybeUninit<T>], A> {
     ///
     /// assert_eq!(*values, [1, 2, 3])
     /// ```
-    #[stable(feature = "new_uninit", since = "CURRENT_RUSTC_VERSION")]
+    #[stable(feature = "new_uninit", since = "1.82.0")]
     #[must_use = "`self` will be dropped if the result is not used"]
     #[inline]
     pub unsafe fn assume_init(self) -> Arc<[T], A> {
diff --git a/library/core/src/arch.rs b/library/core/src/arch.rs
index d681bd124fe..31d6bc36fc8 100644
--- a/library/core/src/arch.rs
+++ b/library/core/src/arch.rs
@@ -4,15 +4,6 @@
 #[stable(feature = "simd_arch", since = "1.27.0")]
 pub use crate::core_arch::arch::*;
 
-#[cfg(bootstrap)]
-#[allow(dead_code)]
-#[unstable(feature = "sha512_sm_x86", issue = "126624")]
-fn dummy() {
-    // AArch64 also has a target feature named `sm4`, so we need `#![feature(sha512_sm_x86)]` in lib.rs
-    // But as the bootstrap compiler doesn't know about this feature yet, we need to convert it to a
-    // library feature until bootstrap gets bumped
-}
-
 /// Inline assembly.
 ///
 /// Refer to [Rust By Example] for a usage guide and the [reference] for
diff --git a/library/core/src/cell.rs b/library/core/src/cell.rs
index 5dd9721d3fe..a3a471a57c7 100644
--- a/library/core/src/cell.rs
+++ b/library/core/src/cell.rs
@@ -306,7 +306,7 @@ pub use once::OnceCell;
 /// See the [module-level documentation](self) for more.
 #[stable(feature = "rust1", since = "1.0.0")]
 #[repr(transparent)]
-#[cfg_attr(not(bootstrap), rustc_pub_transparent)]
+#[rustc_pub_transparent]
 pub struct Cell<T: ?Sized> {
     value: UnsafeCell<T>,
 }
@@ -2056,7 +2056,7 @@ impl<T: ?Sized + fmt::Display> fmt::Display for RefMut<'_, T> {
 #[lang = "unsafe_cell"]
 #[stable(feature = "rust1", since = "1.0.0")]
 #[repr(transparent)]
-#[cfg_attr(not(bootstrap), rustc_pub_transparent)]
+#[rustc_pub_transparent]
 pub struct UnsafeCell<T: ?Sized> {
     value: T,
 }
@@ -2299,7 +2299,7 @@ impl<T> UnsafeCell<*mut T> {
 /// See [`UnsafeCell`] for details.
 #[unstable(feature = "sync_unsafe_cell", issue = "95439")]
 #[repr(transparent)]
-#[cfg_attr(not(bootstrap), rustc_pub_transparent)]
+#[rustc_pub_transparent]
 pub struct SyncUnsafeCell<T: ?Sized> {
     value: UnsafeCell<T>,
 }
diff --git a/library/core/src/clone.rs b/library/core/src/clone.rs
index 21504630672..c5f8bd7401e 100644
--- a/library/core/src/clone.rs
+++ b/library/core/src/clone.rs
@@ -161,7 +161,7 @@ pub trait Clone: Sized {
     #[must_use = "cloning is often expensive and is not expected to have side effects"]
     // Clone::clone is special because the compiler generates MIR to implement it for some types.
     // See InstanceKind::CloneShim.
-    #[cfg_attr(not(bootstrap), lang = "clone_fn")]
+    #[lang = "clone_fn"]
     fn clone(&self) -> Self;
 
     /// Performs copy-assignment from `source`.
diff --git a/library/core/src/default.rs b/library/core/src/default.rs
index 5cacedcb241..4c30290ff26 100644
--- a/library/core/src/default.rs
+++ b/library/core/src/default.rs
@@ -103,7 +103,7 @@ use crate::ascii::Char as AsciiChar;
 /// ```
 #[cfg_attr(not(test), rustc_diagnostic_item = "Default")]
 #[stable(feature = "rust1", since = "1.0.0")]
-#[cfg_attr(not(bootstrap), rustc_trivial_field_reads)]
+#[rustc_trivial_field_reads]
 pub trait Default: Sized {
     /// Returns the "default value" for a type.
     ///
diff --git a/library/core/src/future/ready.rs b/library/core/src/future/ready.rs
index 6f6da8ce51d..b562ad4d886 100644
--- a/library/core/src/future/ready.rs
+++ b/library/core/src/future/ready.rs
@@ -39,7 +39,7 @@ impl<T> Ready<T> {
     /// let a = future::ready(1);
     /// assert_eq!(a.into_inner(), 1);
     /// ```
-    #[stable(feature = "ready_into_inner", since = "CURRENT_RUSTC_VERSION")]
+    #[stable(feature = "ready_into_inner", since = "1.82.0")]
     #[must_use]
     #[inline]
     pub fn into_inner(self) -> T {
diff --git a/library/core/src/intrinsics.rs b/library/core/src/intrinsics.rs
index 8cb9accd59d..7870a62ea81 100644
--- a/library/core/src/intrinsics.rs
+++ b/library/core/src/intrinsics.rs
@@ -1020,7 +1020,6 @@ pub const fn unlikely(b: bool) -> bool {
 /// any safety invariants.
 ///
 /// This intrinsic does not have a stable counterpart.
-#[cfg(not(bootstrap))]
 #[unstable(feature = "core_intrinsics", issue = "none")]
 #[rustc_intrinsic]
 #[rustc_nounwind]
@@ -1030,12 +1029,6 @@ pub fn select_unpredictable<T>(b: bool, true_val: T, false_val: T) -> T {
     if b { true_val } else { false_val }
 }
 
-#[cfg(bootstrap)]
-#[inline]
-pub fn select_unpredictable<T>(b: bool, true_val: T, false_val: T) -> T {
-    if b { true_val } else { false_val }
-}
-
 extern "rust-intrinsic" {
     /// Executes a breakpoint trap, for inspection by a debugger.
     ///
diff --git a/library/core/src/iter/adapters/take.rs b/library/core/src/iter/adapters/take.rs
index 4c8f9fe16da..b96335f4152 100644
--- a/library/core/src/iter/adapters/take.rs
+++ b/library/core/src/iter/adapters/take.rs
@@ -318,7 +318,7 @@ impl<I: Iterator + TrustedRandomAccess> SpecTake for Take<I> {
     }
 }
 
-#[stable(feature = "exact_size_take_repeat", since = "CURRENT_RUSTC_VERSION")]
+#[stable(feature = "exact_size_take_repeat", since = "1.82.0")]
 impl<T: Clone> DoubleEndedIterator for Take<crate::iter::Repeat<T>> {
     #[inline]
     fn next_back(&mut self) -> Option<Self::Item> {
@@ -361,14 +361,14 @@ impl<T: Clone> DoubleEndedIterator for Take<crate::iter::Repeat<T>> {
 // because we have no way to return value of nth invocation of repeater followed
 // by n-1st without remembering all results.
 
-#[stable(feature = "exact_size_take_repeat", since = "CURRENT_RUSTC_VERSION")]
+#[stable(feature = "exact_size_take_repeat", since = "1.82.0")]
 impl<T: Clone> ExactSizeIterator for Take<crate::iter::Repeat<T>> {
     fn len(&self) -> usize {
         self.n
     }
 }
 
-#[stable(feature = "exact_size_take_repeat", since = "CURRENT_RUSTC_VERSION")]
+#[stable(feature = "exact_size_take_repeat", since = "1.82.0")]
 impl<F: FnMut() -> A, A> ExactSizeIterator for Take<crate::iter::RepeatWith<F>> {
     fn len(&self) -> usize {
         self.n
diff --git a/library/core/src/iter/mod.rs b/library/core/src/iter/mod.rs
index 5dad9e1a75e..387963d0afd 100644
--- a/library/core/src/iter/mod.rs
+++ b/library/core/src/iter/mod.rs
@@ -436,7 +436,7 @@ pub use self::sources::{once, Once};
 pub use self::sources::{once_with, OnceWith};
 #[stable(feature = "rust1", since = "1.0.0")]
 pub use self::sources::{repeat, Repeat};
-#[stable(feature = "iter_repeat_n", since = "CURRENT_RUSTC_VERSION")]
+#[stable(feature = "iter_repeat_n", since = "1.82.0")]
 pub use self::sources::{repeat_n, RepeatN};
 #[stable(feature = "iterator_repeat_with", since = "1.28.0")]
 pub use self::sources::{repeat_with, RepeatWith};
diff --git a/library/core/src/iter/sources.rs b/library/core/src/iter/sources.rs
index 55901e1e50b..2c726fbca87 100644
--- a/library/core/src/iter/sources.rs
+++ b/library/core/src/iter/sources.rs
@@ -24,7 +24,7 @@ pub use self::once::{once, Once};
 pub use self::once_with::{once_with, OnceWith};
 #[stable(feature = "rust1", since = "1.0.0")]
 pub use self::repeat::{repeat, Repeat};
-#[stable(feature = "iter_repeat_n", since = "CURRENT_RUSTC_VERSION")]
+#[stable(feature = "iter_repeat_n", since = "1.82.0")]
 pub use self::repeat_n::{repeat_n, RepeatN};
 #[stable(feature = "iterator_repeat_with", since = "1.28.0")]
 pub use self::repeat_with::{repeat_with, RepeatWith};
diff --git a/library/core/src/iter/sources/repeat_n.rs b/library/core/src/iter/sources/repeat_n.rs
index 2e247a34075..9c062193363 100644
--- a/library/core/src/iter/sources/repeat_n.rs
+++ b/library/core/src/iter/sources/repeat_n.rs
@@ -56,7 +56,7 @@ use crate::num::NonZero;
 /// assert_eq!(None, it.next());
 /// ```
 #[inline]
-#[stable(feature = "iter_repeat_n", since = "CURRENT_RUSTC_VERSION")]
+#[stable(feature = "iter_repeat_n", since = "1.82.0")]
 pub fn repeat_n<T: Clone>(element: T, count: usize) -> RepeatN<T> {
     let mut element = ManuallyDrop::new(element);
 
@@ -75,7 +75,7 @@ pub fn repeat_n<T: Clone>(element: T, count: usize) -> RepeatN<T> {
 /// This `struct` is created by the [`repeat_n()`] function.
 /// See its documentation for more.
 #[derive(Clone, Debug)]
-#[stable(feature = "iter_repeat_n", since = "CURRENT_RUSTC_VERSION")]
+#[stable(feature = "iter_repeat_n", since = "1.82.0")]
 pub struct RepeatN<A> {
     count: usize,
     // Invariant: has been dropped iff count == 0.
@@ -99,14 +99,14 @@ impl<A> RepeatN<A> {
     }
 }
 
-#[stable(feature = "iter_repeat_n", since = "CURRENT_RUSTC_VERSION")]
+#[stable(feature = "iter_repeat_n", since = "1.82.0")]
 impl<A> Drop for RepeatN<A> {
     fn drop(&mut self) {
         self.take_element();
     }
 }
 
-#[stable(feature = "iter_repeat_n", since = "CURRENT_RUSTC_VERSION")]
+#[stable(feature = "iter_repeat_n", since = "1.82.0")]
 impl<A: Clone> Iterator for RepeatN<A> {
     type Item = A;
 
@@ -154,14 +154,14 @@ impl<A: Clone> Iterator for RepeatN<A> {
     }
 }
 
-#[stable(feature = "iter_repeat_n", since = "CURRENT_RUSTC_VERSION")]
+#[stable(feature = "iter_repeat_n", since = "1.82.0")]
 impl<A: Clone> ExactSizeIterator for RepeatN<A> {
     fn len(&self) -> usize {
         self.count
     }
 }
 
-#[stable(feature = "iter_repeat_n", since = "CURRENT_RUSTC_VERSION")]
+#[stable(feature = "iter_repeat_n", since = "1.82.0")]
 impl<A: Clone> DoubleEndedIterator for RepeatN<A> {
     #[inline]
     fn next_back(&mut self) -> Option<A> {
@@ -179,12 +179,12 @@ impl<A: Clone> DoubleEndedIterator for RepeatN<A> {
     }
 }
 
-#[stable(feature = "iter_repeat_n", since = "CURRENT_RUSTC_VERSION")]
+#[stable(feature = "iter_repeat_n", since = "1.82.0")]
 impl<A: Clone> FusedIterator for RepeatN<A> {}
 
 #[unstable(feature = "trusted_len", issue = "37572")]
 unsafe impl<A: Clone> TrustedLen for RepeatN<A> {}
-#[stable(feature = "iter_repeat_n", since = "CURRENT_RUSTC_VERSION")]
+#[stable(feature = "iter_repeat_n", since = "1.82.0")]
 impl<A: Clone> UncheckedIterator for RepeatN<A> {
     #[inline]
     unsafe fn next_unchecked(&mut self) -> Self::Item {
diff --git a/library/core/src/iter/traits/iterator.rs b/library/core/src/iter/traits/iterator.rs
index 50a2d952e5b..8352486ad41 100644
--- a/library/core/src/iter/traits/iterator.rs
+++ b/library/core/src/iter/traits/iterator.rs
@@ -3953,7 +3953,7 @@ pub trait Iterator {
     /// assert!(![0.0, 1.0, f32::NAN].iter().is_sorted());
     /// ```
     #[inline]
-    #[stable(feature = "is_sorted", since = "CURRENT_RUSTC_VERSION")]
+    #[stable(feature = "is_sorted", since = "1.82.0")]
     #[rustc_do_not_const_check]
     fn is_sorted(self) -> bool
     where
@@ -3980,7 +3980,7 @@ pub trait Iterator {
     /// assert!(std::iter::empty::<i32>().is_sorted_by(|a, b| false));
     /// assert!(std::iter::empty::<i32>().is_sorted_by(|a, b| true));
     /// ```
-    #[stable(feature = "is_sorted", since = "CURRENT_RUSTC_VERSION")]
+    #[stable(feature = "is_sorted", since = "1.82.0")]
     #[rustc_do_not_const_check]
     fn is_sorted_by<F>(mut self, compare: F) -> bool
     where
@@ -4025,7 +4025,7 @@ pub trait Iterator {
     /// assert!(![-2i32, -1, 0, 3].iter().is_sorted_by_key(|n| n.abs()));
     /// ```
     #[inline]
-    #[stable(feature = "is_sorted", since = "CURRENT_RUSTC_VERSION")]
+    #[stable(feature = "is_sorted", since = "1.82.0")]
     #[rustc_do_not_const_check]
     fn is_sorted_by_key<F, K>(self, f: F) -> bool
     where
diff --git a/library/core/src/lib.rs b/library/core/src/lib.rs
index e60bcf3aa5d..bda38254362 100644
--- a/library/core/src/lib.rs
+++ b/library/core/src/lib.rs
@@ -107,7 +107,6 @@
 //
 // Library features:
 // tidy-alphabetical-start
-#![cfg_attr(bootstrap, feature(offset_of_nested))]
 #![feature(array_ptr_get)]
 #![feature(asm_experimental_arch)]
 #![feature(const_align_of_val)]
@@ -122,7 +121,6 @@
 #![feature(const_cell_into_inner)]
 #![feature(const_eval_select)]
 #![feature(const_exact_div)]
-#![feature(const_float_bits_conv)]
 #![feature(const_float_classify)]
 #![feature(const_fmt_arguments_new)]
 #![feature(const_hash)]
@@ -166,6 +164,8 @@
 #![feature(coverage_attribute)]
 #![feature(do_not_recommend)]
 #![feature(duration_consts_float)]
+#![feature(f128_const)]
+#![feature(f16_const)]
 #![feature(internal_impls_macro)]
 #![feature(ip)]
 #![feature(is_ascii_octdigit)]
@@ -192,9 +192,6 @@
 //
 // Language features:
 // tidy-alphabetical-start
-#![cfg_attr(bootstrap, feature(asm_const))]
-#![cfg_attr(bootstrap, feature(const_fn_floating_point_arithmetic))]
-#![cfg_attr(bootstrap, feature(min_exhaustive_patterns))]
 #![feature(abi_unadjusted)]
 #![feature(adt_const_params)]
 #![feature(allow_internal_unsafe)]
diff --git a/library/core/src/marker.rs b/library/core/src/marker.rs
index d9f197d9510..fd41b80cdbd 100644
--- a/library/core/src/marker.rs
+++ b/library/core/src/marker.rs
@@ -1003,7 +1003,7 @@ pub macro ConstParamTy($item:item) {
     /* compiler built-in */
 }
 
-#[cfg_attr(not(bootstrap), lang = "unsized_const_param_ty")]
+#[lang = "unsized_const_param_ty"]
 #[unstable(feature = "unsized_const_params", issue = "95174")]
 #[diagnostic::on_unimplemented(message = "`{Self}` can't be used as a const parameter type")]
 /// A marker for types which can be used as types of `const` generic parameters.
@@ -1013,10 +1013,9 @@ pub macro ConstParamTy($item:item) {
 pub trait UnsizedConstParamTy: StructuralPartialEq + Eq {}
 
 /// Derive macro generating an impl of the trait `ConstParamTy`.
-#[cfg(not(bootstrap))]
-#[cfg_attr(not(bootstrap), rustc_builtin_macro)]
-#[cfg_attr(not(bootstrap), allow_internal_unstable(unsized_const_params))]
-#[cfg_attr(not(bootstrap), unstable(feature = "unsized_const_params", issue = "95174"))]
+#[rustc_builtin_macro]
+#[allow_internal_unstable(unsized_const_params)]
+#[unstable(feature = "unsized_const_params", issue = "95174")]
 pub macro UnsizedConstParamTy($item:item) {
     /* compiler built-in */
 }
@@ -1032,14 +1031,6 @@ marker_impls! {
         (),
         {T: ConstParamTy_, const N: usize} [T; N],
 }
-#[cfg(bootstrap)]
-marker_impls! {
-    #[unstable(feature = "adt_const_params", issue = "95174")]
-    ConstParamTy_ for
-        str,
-        {T: ConstParamTy_} [T],
-        {T: ConstParamTy_ + ?Sized} &T,
-}
 
 marker_impls! {
     #[unstable(feature = "unsized_const_params", issue = "95174")]
diff --git a/library/core/src/mem/manually_drop.rs b/library/core/src/mem/manually_drop.rs
index be5cee2e852..3e47785ee48 100644
--- a/library/core/src/mem/manually_drop.rs
+++ b/library/core/src/mem/manually_drop.rs
@@ -47,7 +47,7 @@ use crate::ptr;
 #[lang = "manually_drop"]
 #[derive(Copy, Clone, Debug, Default, PartialEq, Eq, PartialOrd, Ord, Hash)]
 #[repr(transparent)]
-#[cfg_attr(not(bootstrap), rustc_pub_transparent)]
+#[rustc_pub_transparent]
 pub struct ManuallyDrop<T: ?Sized> {
     value: T,
 }
diff --git a/library/core/src/mem/maybe_uninit.rs b/library/core/src/mem/maybe_uninit.rs
index c308def2f57..4be2e5ef1ea 100644
--- a/library/core/src/mem/maybe_uninit.rs
+++ b/library/core/src/mem/maybe_uninit.rs
@@ -237,7 +237,7 @@ use crate::{fmt, intrinsics, ptr, slice};
 #[lang = "maybe_uninit"]
 #[derive(Copy)]
 #[repr(transparent)]
-#[cfg_attr(not(bootstrap), rustc_pub_transparent)]
+#[rustc_pub_transparent]
 pub union MaybeUninit<T> {
     uninit: (),
     value: ManuallyDrop<T>,
diff --git a/library/core/src/mem/mod.rs b/library/core/src/mem/mod.rs
index fed484ae3cd..414262fcf5a 100644
--- a/library/core/src/mem/mod.rs
+++ b/library/core/src/mem/mod.rs
@@ -1326,7 +1326,6 @@ impl<T> SizedTypeProperties for T {}
 /// # Examples
 ///
 /// ```
-/// # #![cfg_attr(bootstrap, feature(offset_of_nested))]
 /// #![feature(offset_of_enum)]
 ///
 /// use std::mem;
diff --git a/library/core/src/mem/transmutability.rs b/library/core/src/mem/transmutability.rs
index cda999a7f0c..7fa3c334391 100644
--- a/library/core/src/mem/transmutability.rs
+++ b/library/core/src/mem/transmutability.rs
@@ -43,8 +43,7 @@ use crate::marker::{ConstParamTy_, UnsizedConstParamTy};
 /// conversions that extend the bits of `Src` with trailing padding to fill
 /// trailing uninitialized bytes of `Self`; e.g.:
 ///
-#[cfg_attr(bootstrap, doc = "```rust,ignore not runnable on bootstrap")]
-#[cfg_attr(not(bootstrap), doc = "```rust")]
+/// ```rust
 /// #![feature(transmutability)]
 ///
 /// use core::mem::{Assume, TransmuteFrom};
@@ -151,8 +150,7 @@ pub struct Assume {
     /// When `false`, [`TransmuteFrom`] is not implemented for transmutations
     /// that might violate the alignment requirements of references; e.g.:
     ///
-    #[cfg_attr(bootstrap, doc = "```rust,ignore not runnable on bootstrap")]
-    #[cfg_attr(not(bootstrap), doc = "```compile_fail,E0277")]
+    /// ```compile_fail,E0277
     /// #![feature(transmutability)]
     /// use core::mem::{align_of, TransmuteFrom};
     ///
@@ -171,8 +169,7 @@ pub struct Assume {
     /// that references in the transmuted value satisfy the alignment
     /// requirements of their referent types; e.g.:
     ///
-    #[cfg_attr(bootstrap, doc = "```rust,ignore not runnable on bootstrap")]
-    #[cfg_attr(not(bootstrap), doc = "```rust")]
+    /// ```rust
     /// #![feature(pointer_is_aligned_to, transmutability)]
     /// use core::mem::{align_of, Assume, TransmuteFrom};
     ///
@@ -203,8 +200,7 @@ pub struct Assume {
     /// that might violate the library safety invariants of the destination
     /// type; e.g.:
     ///
-    #[cfg_attr(bootstrap, doc = "```rust,ignore not runnable on bootstrap")]
-    #[cfg_attr(not(bootstrap), doc = "```compile_fail,E0277")]
+    /// ```compile_fail,E0277
     /// #![feature(transmutability)]
     /// use core::mem::TransmuteFrom;
     ///
@@ -225,8 +221,7 @@ pub struct Assume {
     /// that undefined behavior does not arise from using the transmuted value;
     /// e.g.:
     ///
-    #[cfg_attr(bootstrap, doc = "```rust,ignore not runnable on bootstrap")]
-    #[cfg_attr(not(bootstrap), doc = "```rust")]
+    /// ```rust
     /// #![feature(transmutability)]
     /// use core::mem::{Assume, TransmuteFrom};
     ///
@@ -254,8 +249,7 @@ pub struct Assume {
     /// that might violate the language-level bit-validity invariant of the
     /// destination type; e.g.:
     ///
-    #[cfg_attr(bootstrap, doc = "```rust,ignore not runnable on bootstrap")]
-    #[cfg_attr(not(bootstrap), doc = "```compile_fail,E0277")]
+    /// ```compile_fail,E0277
     /// #![feature(transmutability)]
     /// use core::mem::TransmuteFrom;
     ///
@@ -271,8 +265,7 @@ pub struct Assume {
     /// that the value being transmuted is a bit-valid instance of the
     /// transmuted value; e.g.:
     ///
-    #[cfg_attr(bootstrap, doc = "```rust,ignore not runnable on bootstrap")]
-    #[cfg_attr(not(bootstrap), doc = "```rust")]
+    /// ```rust
     /// #![feature(transmutability)]
     /// use core::mem::{Assume, TransmuteFrom};
     ///
@@ -335,9 +328,7 @@ impl Assume {
     /// This is especially useful for extending [`Assume`] in generic contexts;
     /// e.g.:
     ///
-    #[cfg_attr(bootstrap, doc = "```rust,ignore not runnable on bootstrap")]
-    #[cfg_attr(not(bootstrap), doc = "```rust")]
-    #[unstable(feature = "transmutability", issue = "99571")]
+    /// ```rust
     /// #![feature(
     ///     adt_const_params,
     ///     generic_const_exprs,
@@ -379,6 +370,7 @@ impl Assume {
     ///     try_transmute_ref::<_, _, { Assume::NOTHING }>(src)
     /// };
     ///```
+    #[unstable(feature = "transmutability", issue = "99571")]
     pub const fn and(self, other_assumptions: Self) -> Self {
         Self {
             alignment: self.alignment || other_assumptions.alignment,
@@ -390,8 +382,7 @@ impl Assume {
 
     /// Remove `other_assumptions` the obligations of `self`; e.g.:
     ///
-    #[cfg_attr(bootstrap, doc = "```rust,ignore not runnable on bootstrap")]
-    #[cfg_attr(not(bootstrap), doc = "```rust")]
+    /// ```rust
     /// #![feature(transmutability)]
     /// use core::mem::Assume;
     ///
diff --git a/library/core/src/num/error.rs b/library/core/src/num/error.rs
index b8e22a8aef9..6ef2fdd14c1 100644
--- a/library/core/src/num/error.rs
+++ b/library/core/src/num/error.rs
@@ -113,7 +113,7 @@ pub enum IntErrorKind {
 impl ParseIntError {
     /// Outputs the detailed cause of parsing an integer failing.
     #[must_use]
-    #[rustc_const_stable(feature = "const_int_from_str", since = "CURRENT_RUSTC_VERSION")]
+    #[rustc_const_stable(feature = "const_int_from_str", since = "1.82.0")]
     #[stable(feature = "int_error_matching", since = "1.55.0")]
     pub const fn kind(&self) -> &IntErrorKind {
         &self.kind
diff --git a/library/core/src/num/f128.rs b/library/core/src/num/f128.rs
index d4236e47bfe..1959628bd8f 100644
--- a/library/core/src/num/f128.rs
+++ b/library/core/src/num/f128.rs
@@ -914,7 +914,7 @@ impl f128 {
     /// ```
     #[inline]
     #[unstable(feature = "f128", issue = "116909")]
-    #[rustc_const_unstable(feature = "const_float_bits_conv", issue = "72447")]
+    #[rustc_const_unstable(feature = "f128_const", issue = "116909")]
     #[must_use = "this returns the result of the operation, without modifying the original"]
     pub const fn to_bits(self) -> u128 {
         // SAFETY: `u128` is a plain old datatype so we can always transmute to it.
@@ -963,7 +963,7 @@ impl f128 {
     #[inline]
     #[must_use]
     #[unstable(feature = "f128", issue = "116909")]
-    #[rustc_const_unstable(feature = "const_float_bits_conv", issue = "72447")]
+    #[rustc_const_unstable(feature = "f128_const", issue = "116909")]
     pub const fn from_bits(v: u128) -> Self {
         // It turns out the safety issues with sNaN were overblown! Hooray!
         // SAFETY: `u128` is a plain old datatype so we can always transmute from it.
@@ -990,7 +990,7 @@ impl f128 {
     /// ```
     #[inline]
     #[unstable(feature = "f128", issue = "116909")]
-    #[rustc_const_unstable(feature = "const_float_bits_conv", issue = "72447")]
+    #[rustc_const_unstable(feature = "f128_const", issue = "116909")]
     #[must_use = "this returns the result of the operation, without modifying the original"]
     pub const fn to_be_bytes(self) -> [u8; 16] {
         self.to_bits().to_be_bytes()
@@ -1016,7 +1016,7 @@ impl f128 {
     /// ```
     #[inline]
     #[unstable(feature = "f128", issue = "116909")]
-    #[rustc_const_unstable(feature = "const_float_bits_conv", issue = "72447")]
+    #[rustc_const_unstable(feature = "f128_const", issue = "116909")]
     #[must_use = "this returns the result of the operation, without modifying the original"]
     pub const fn to_le_bytes(self) -> [u8; 16] {
         self.to_bits().to_le_bytes()
@@ -1053,7 +1053,7 @@ impl f128 {
     /// ```
     #[inline]
     #[unstable(feature = "f128", issue = "116909")]
-    #[rustc_const_unstable(feature = "const_float_bits_conv", issue = "72447")]
+    #[rustc_const_unstable(feature = "f128_const", issue = "116909")]
     #[must_use = "this returns the result of the operation, without modifying the original"]
     pub const fn to_ne_bytes(self) -> [u8; 16] {
         self.to_bits().to_ne_bytes()
@@ -1081,7 +1081,7 @@ impl f128 {
     #[inline]
     #[must_use]
     #[unstable(feature = "f128", issue = "116909")]
-    #[rustc_const_unstable(feature = "const_float_bits_conv", issue = "72447")]
+    #[rustc_const_unstable(feature = "f128_const", issue = "116909")]
     pub const fn from_be_bytes(bytes: [u8; 16]) -> Self {
         Self::from_bits(u128::from_be_bytes(bytes))
     }
@@ -1108,7 +1108,7 @@ impl f128 {
     #[inline]
     #[must_use]
     #[unstable(feature = "f128", issue = "116909")]
-    #[rustc_const_unstable(feature = "const_float_bits_conv", issue = "72447")]
+    #[rustc_const_unstable(feature = "f128_const", issue = "116909")]
     pub const fn from_le_bytes(bytes: [u8; 16]) -> Self {
         Self::from_bits(u128::from_le_bytes(bytes))
     }
@@ -1145,7 +1145,7 @@ impl f128 {
     #[inline]
     #[must_use]
     #[unstable(feature = "f128", issue = "116909")]
-    #[rustc_const_unstable(feature = "const_float_bits_conv", issue = "72447")]
+    #[rustc_const_unstable(feature = "f128_const", issue = "116909")]
     pub const fn from_ne_bytes(bytes: [u8; 16]) -> Self {
         Self::from_bits(u128::from_ne_bytes(bytes))
     }
diff --git a/library/core/src/num/f16.rs b/library/core/src/num/f16.rs
index 1e2f841aca7..9252e8c6015 100644
--- a/library/core/src/num/f16.rs
+++ b/library/core/src/num/f16.rs
@@ -925,7 +925,7 @@ impl f16 {
     /// ```
     #[inline]
     #[unstable(feature = "f16", issue = "116909")]
-    #[rustc_const_unstable(feature = "const_float_bits_conv", issue = "72447")]
+    #[rustc_const_unstable(feature = "f16_const", issue = "116909")]
     #[must_use = "this returns the result of the operation, without modifying the original"]
     pub const fn to_bits(self) -> u16 {
         // SAFETY: `u16` is a plain old datatype so we can always transmute to it.
@@ -973,7 +973,7 @@ impl f16 {
     #[inline]
     #[must_use]
     #[unstable(feature = "f16", issue = "116909")]
-    #[rustc_const_unstable(feature = "const_float_bits_conv", issue = "72447")]
+    #[rustc_const_unstable(feature = "f16_const", issue = "116909")]
     pub const fn from_bits(v: u16) -> Self {
         // It turns out the safety issues with sNaN were overblown! Hooray!
         // SAFETY: `u16` is a plain old datatype so we can always transmute from it.
@@ -999,7 +999,7 @@ impl f16 {
     /// ```
     #[inline]
     #[unstable(feature = "f16", issue = "116909")]
-    #[rustc_const_unstable(feature = "const_float_bits_conv", issue = "72447")]
+    #[rustc_const_unstable(feature = "f16_const", issue = "116909")]
     #[must_use = "this returns the result of the operation, without modifying the original"]
     pub const fn to_be_bytes(self) -> [u8; 2] {
         self.to_bits().to_be_bytes()
@@ -1024,7 +1024,7 @@ impl f16 {
     /// ```
     #[inline]
     #[unstable(feature = "f16", issue = "116909")]
-    #[rustc_const_unstable(feature = "const_float_bits_conv", issue = "72447")]
+    #[rustc_const_unstable(feature = "f16_const", issue = "116909")]
     #[must_use = "this returns the result of the operation, without modifying the original"]
     pub const fn to_le_bytes(self) -> [u8; 2] {
         self.to_bits().to_le_bytes()
@@ -1062,7 +1062,7 @@ impl f16 {
     /// ```
     #[inline]
     #[unstable(feature = "f16", issue = "116909")]
-    #[rustc_const_unstable(feature = "const_float_bits_conv", issue = "72447")]
+    #[rustc_const_unstable(feature = "f16_const", issue = "116909")]
     #[must_use = "this returns the result of the operation, without modifying the original"]
     pub const fn to_ne_bytes(self) -> [u8; 2] {
         self.to_bits().to_ne_bytes()
@@ -1086,7 +1086,7 @@ impl f16 {
     #[inline]
     #[must_use]
     #[unstable(feature = "f16", issue = "116909")]
-    #[rustc_const_unstable(feature = "const_float_bits_conv", issue = "72447")]
+    #[rustc_const_unstable(feature = "f16_const", issue = "116909")]
     pub const fn from_be_bytes(bytes: [u8; 2]) -> Self {
         Self::from_bits(u16::from_be_bytes(bytes))
     }
@@ -1109,7 +1109,7 @@ impl f16 {
     #[inline]
     #[must_use]
     #[unstable(feature = "f16", issue = "116909")]
-    #[rustc_const_unstable(feature = "const_float_bits_conv", issue = "72447")]
+    #[rustc_const_unstable(feature = "f16_const", issue = "116909")]
     pub const fn from_le_bytes(bytes: [u8; 2]) -> Self {
         Self::from_bits(u16::from_le_bytes(bytes))
     }
@@ -1143,7 +1143,7 @@ impl f16 {
     #[inline]
     #[must_use]
     #[unstable(feature = "f16", issue = "116909")]
-    #[rustc_const_unstable(feature = "const_float_bits_conv", issue = "72447")]
+    #[rustc_const_unstable(feature = "f16_const", issue = "116909")]
     pub const fn from_ne_bytes(bytes: [u8; 2]) -> Self {
         Self::from_bits(u16::from_ne_bytes(bytes))
     }
diff --git a/library/core/src/num/f32.rs b/library/core/src/num/f32.rs
index c1adcc753f2..2bc89722497 100644
--- a/library/core/src/num/f32.rs
+++ b/library/core/src/num/f32.rs
@@ -1115,7 +1115,7 @@ impl f32 {
     #[must_use = "this returns the result of the operation, \
                   without modifying the original"]
     #[stable(feature = "float_bits_conv", since = "1.20.0")]
-    #[rustc_const_unstable(feature = "const_float_bits_conv", issue = "72447")]
+    #[rustc_const_stable(feature = "const_float_bits_conv", since = "CURRENT_RUSTC_VERSION")]
     #[inline]
     pub const fn to_bits(self) -> u32 {
         // SAFETY: `u32` is a plain old datatype so we can always transmute to it.
@@ -1159,7 +1159,7 @@ impl f32 {
     /// assert_eq!(v, 12.5);
     /// ```
     #[stable(feature = "float_bits_conv", since = "1.20.0")]
-    #[rustc_const_unstable(feature = "const_float_bits_conv", issue = "72447")]
+    #[rustc_const_stable(feature = "const_float_bits_conv", since = "CURRENT_RUSTC_VERSION")]
     #[must_use]
     #[inline]
     pub const fn from_bits(v: u32) -> Self {
@@ -1183,7 +1183,7 @@ impl f32 {
     #[must_use = "this returns the result of the operation, \
                   without modifying the original"]
     #[stable(feature = "float_to_from_bytes", since = "1.40.0")]
-    #[rustc_const_unstable(feature = "const_float_bits_conv", issue = "72447")]
+    #[rustc_const_stable(feature = "const_float_bits_conv", since = "CURRENT_RUSTC_VERSION")]
     #[inline]
     pub const fn to_be_bytes(self) -> [u8; 4] {
         self.to_bits().to_be_bytes()
@@ -1204,7 +1204,7 @@ impl f32 {
     #[must_use = "this returns the result of the operation, \
                   without modifying the original"]
     #[stable(feature = "float_to_from_bytes", since = "1.40.0")]
-    #[rustc_const_unstable(feature = "const_float_bits_conv", issue = "72447")]
+    #[rustc_const_stable(feature = "const_float_bits_conv", since = "CURRENT_RUSTC_VERSION")]
     #[inline]
     pub const fn to_le_bytes(self) -> [u8; 4] {
         self.to_bits().to_le_bytes()
@@ -1238,7 +1238,7 @@ impl f32 {
     #[must_use = "this returns the result of the operation, \
                   without modifying the original"]
     #[stable(feature = "float_to_from_bytes", since = "1.40.0")]
-    #[rustc_const_unstable(feature = "const_float_bits_conv", issue = "72447")]
+    #[rustc_const_stable(feature = "const_float_bits_conv", since = "CURRENT_RUSTC_VERSION")]
     #[inline]
     pub const fn to_ne_bytes(self) -> [u8; 4] {
         self.to_bits().to_ne_bytes()
@@ -1256,7 +1256,7 @@ impl f32 {
     /// assert_eq!(value, 12.5);
     /// ```
     #[stable(feature = "float_to_from_bytes", since = "1.40.0")]
-    #[rustc_const_unstable(feature = "const_float_bits_conv", issue = "72447")]
+    #[rustc_const_stable(feature = "const_float_bits_conv", since = "CURRENT_RUSTC_VERSION")]
     #[must_use]
     #[inline]
     pub const fn from_be_bytes(bytes: [u8; 4]) -> Self {
@@ -1275,7 +1275,7 @@ impl f32 {
     /// assert_eq!(value, 12.5);
     /// ```
     #[stable(feature = "float_to_from_bytes", since = "1.40.0")]
-    #[rustc_const_unstable(feature = "const_float_bits_conv", issue = "72447")]
+    #[rustc_const_stable(feature = "const_float_bits_conv", since = "CURRENT_RUSTC_VERSION")]
     #[must_use]
     #[inline]
     pub const fn from_le_bytes(bytes: [u8; 4]) -> Self {
@@ -1305,7 +1305,7 @@ impl f32 {
     /// assert_eq!(value, 12.5);
     /// ```
     #[stable(feature = "float_to_from_bytes", since = "1.40.0")]
-    #[rustc_const_unstable(feature = "const_float_bits_conv", issue = "72447")]
+    #[rustc_const_stable(feature = "const_float_bits_conv", since = "CURRENT_RUSTC_VERSION")]
     #[must_use]
     #[inline]
     pub const fn from_ne_bytes(bytes: [u8; 4]) -> Self {
diff --git a/library/core/src/num/f64.rs b/library/core/src/num/f64.rs
index e6406771ad3..b3f5be9fc8a 100644
--- a/library/core/src/num/f64.rs
+++ b/library/core/src/num/f64.rs
@@ -1111,7 +1111,7 @@ impl f64 {
     #[must_use = "this returns the result of the operation, \
                   without modifying the original"]
     #[stable(feature = "float_bits_conv", since = "1.20.0")]
-    #[rustc_const_unstable(feature = "const_float_bits_conv", issue = "72447")]
+    #[rustc_const_stable(feature = "const_float_bits_conv", since = "CURRENT_RUSTC_VERSION")]
     #[inline]
     pub const fn to_bits(self) -> u64 {
         // SAFETY: `u64` is a plain old datatype so we can always transmute to it.
@@ -1155,7 +1155,7 @@ impl f64 {
     /// assert_eq!(v, 12.5);
     /// ```
     #[stable(feature = "float_bits_conv", since = "1.20.0")]
-    #[rustc_const_unstable(feature = "const_float_bits_conv", issue = "72447")]
+    #[rustc_const_stable(feature = "const_float_bits_conv", since = "CURRENT_RUSTC_VERSION")]
     #[must_use]
     #[inline]
     pub const fn from_bits(v: u64) -> Self {
@@ -1179,7 +1179,7 @@ impl f64 {
     #[must_use = "this returns the result of the operation, \
                   without modifying the original"]
     #[stable(feature = "float_to_from_bytes", since = "1.40.0")]
-    #[rustc_const_unstable(feature = "const_float_bits_conv", issue = "72447")]
+    #[rustc_const_stable(feature = "const_float_bits_conv", since = "CURRENT_RUSTC_VERSION")]
     #[inline]
     pub const fn to_be_bytes(self) -> [u8; 8] {
         self.to_bits().to_be_bytes()
@@ -1200,7 +1200,7 @@ impl f64 {
     #[must_use = "this returns the result of the operation, \
                   without modifying the original"]
     #[stable(feature = "float_to_from_bytes", since = "1.40.0")]
-    #[rustc_const_unstable(feature = "const_float_bits_conv", issue = "72447")]
+    #[rustc_const_stable(feature = "const_float_bits_conv", since = "CURRENT_RUSTC_VERSION")]
     #[inline]
     pub const fn to_le_bytes(self) -> [u8; 8] {
         self.to_bits().to_le_bytes()
@@ -1234,7 +1234,7 @@ impl f64 {
     #[must_use = "this returns the result of the operation, \
                   without modifying the original"]
     #[stable(feature = "float_to_from_bytes", since = "1.40.0")]
-    #[rustc_const_unstable(feature = "const_float_bits_conv", issue = "72447")]
+    #[rustc_const_stable(feature = "const_float_bits_conv", since = "CURRENT_RUSTC_VERSION")]
     #[inline]
     pub const fn to_ne_bytes(self) -> [u8; 8] {
         self.to_bits().to_ne_bytes()
@@ -1252,7 +1252,7 @@ impl f64 {
     /// assert_eq!(value, 12.5);
     /// ```
     #[stable(feature = "float_to_from_bytes", since = "1.40.0")]
-    #[rustc_const_unstable(feature = "const_float_bits_conv", issue = "72447")]
+    #[rustc_const_stable(feature = "const_float_bits_conv", since = "CURRENT_RUSTC_VERSION")]
     #[must_use]
     #[inline]
     pub const fn from_be_bytes(bytes: [u8; 8]) -> Self {
@@ -1271,7 +1271,7 @@ impl f64 {
     /// assert_eq!(value, 12.5);
     /// ```
     #[stable(feature = "float_to_from_bytes", since = "1.40.0")]
-    #[rustc_const_unstable(feature = "const_float_bits_conv", issue = "72447")]
+    #[rustc_const_stable(feature = "const_float_bits_conv", since = "CURRENT_RUSTC_VERSION")]
     #[must_use]
     #[inline]
     pub const fn from_le_bytes(bytes: [u8; 8]) -> Self {
@@ -1301,7 +1301,7 @@ impl f64 {
     /// assert_eq!(value, 12.5);
     /// ```
     #[stable(feature = "float_to_from_bytes", since = "1.40.0")]
-    #[rustc_const_unstable(feature = "const_float_bits_conv", issue = "72447")]
+    #[rustc_const_stable(feature = "const_float_bits_conv", since = "CURRENT_RUSTC_VERSION")]
     #[must_use]
     #[inline]
     pub const fn from_ne_bytes(bytes: [u8; 8]) -> Self {
diff --git a/library/core/src/num/int_macros.rs b/library/core/src/num/int_macros.rs
index 878a911dde5..7241b3ff6a3 100644
--- a/library/core/src/num/int_macros.rs
+++ b/library/core/src/num/int_macros.rs
@@ -3023,8 +3023,16 @@ macro_rules! int_impl {
         pub const fn div_floor(self, rhs: Self) -> Self {
             let d = self / rhs;
             let r = self % rhs;
-            if (r > 0 && rhs < 0) || (r < 0 && rhs > 0) {
-                d - 1
+
+            // If the remainder is non-zero, we need to subtract one if the
+            // signs of self and rhs differ, as this means we rounded upwards
+            // instead of downwards. We do this branchlessly by creating a mask
+            // which is all-ones iff the signs differ, and 0 otherwise. Then by
+            // adding this mask (which corresponds to the signed value -1), we
+            // get our correction.
+            let correction = (self ^ rhs) >> (Self::BITS - 1);
+            if r != 0 {
+                d + correction
             } else {
                 d
             }
@@ -3059,8 +3067,12 @@ macro_rules! int_impl {
         pub const fn div_ceil(self, rhs: Self) -> Self {
             let d = self / rhs;
             let r = self % rhs;
-            if (r > 0 && rhs > 0) || (r < 0 && rhs < 0) {
-                d + 1
+
+            // When remainder is non-zero we have a.div_ceil(b) == 1 + a.div_floor(b),
+            // so we can re-use the algorithm from div_floor, just adding 1.
+            let correction = 1 + ((self ^ rhs) >> (Self::BITS - 1));
+            if r != 0 {
+                d + correction
             } else {
                 d
             }
diff --git a/library/core/src/num/mod.rs b/library/core/src/num/mod.rs
index e9e5324666a..37c9db7f474 100644
--- a/library/core/src/num/mod.rs
+++ b/library/core/src/num/mod.rs
@@ -1385,7 +1385,7 @@ from_str_radix_int_impl! { isize i8 i16 i32 i64 i128 usize u8 u16 u32 u64 u128 }
 #[doc(hidden)]
 #[inline(always)]
 #[unstable(issue = "none", feature = "std_internals")]
-#[rustc_const_stable(feature = "const_int_from_str", since = "CURRENT_RUSTC_VERSION")]
+#[rustc_const_stable(feature = "const_int_from_str", since = "1.82.0")]
 pub const fn can_not_overflow<T>(radix: u32, is_signed_ty: bool, digits: &[u8]) -> bool {
     radix <= 16 && digits.len() <= mem::size_of::<T>() * 2 - is_signed_ty as usize
 }
@@ -1435,7 +1435,7 @@ macro_rules! from_str_radix {
             #[doc = concat!("assert_eq!(", stringify!($int_ty), "::from_str_radix(\"A\", 16), Ok(10));")]
             /// ```
             #[stable(feature = "rust1", since = "1.0.0")]
-            #[rustc_const_stable(feature = "const_int_from_str", since = "CURRENT_RUSTC_VERSION")]
+            #[rustc_const_stable(feature = "const_int_from_str", since = "1.82.0")]
             pub const fn from_str_radix(src: &str, radix: u32) -> Result<$int_ty, ParseIntError> {
                 use self::IntErrorKind::*;
                 use self::ParseIntError as PIE;
@@ -1565,7 +1565,7 @@ macro_rules! from_str_radix_size_impl {
         #[doc = concat!("assert_eq!(", stringify!($size), "::from_str_radix(\"A\", 16), Ok(10));")]
         /// ```
         #[stable(feature = "rust1", since = "1.0.0")]
-        #[rustc_const_stable(feature = "const_int_from_str", since = "CURRENT_RUSTC_VERSION")]
+        #[rustc_const_stable(feature = "const_int_from_str", since = "1.82.0")]
         pub const fn from_str_radix(src: &str, radix: u32) -> Result<$size, ParseIntError> {
             match <$t>::from_str_radix(src, radix) {
                 Ok(x) => Ok(x as $size),
diff --git a/library/core/src/option.rs b/library/core/src/option.rs
index 50cb22b7eb3..212e4f02154 100644
--- a/library/core/src/option.rs
+++ b/library/core/src/option.rs
@@ -667,7 +667,7 @@ impl<T> Option<T> {
     /// ```
     #[must_use]
     #[inline]
-    #[stable(feature = "is_none_or", since = "CURRENT_RUSTC_VERSION")]
+    #[stable(feature = "is_none_or", since = "1.82.0")]
     pub fn is_none_or(self, f: impl FnOnce(T) -> bool) -> bool {
         match self {
             None => true,
diff --git a/library/core/src/pin.rs b/library/core/src/pin.rs
index 65f6bfb7ee1..9c13662e08e 100644
--- a/library/core/src/pin.rs
+++ b/library/core/src/pin.rs
@@ -1084,7 +1084,7 @@ use crate::{cmp, fmt};
 #[lang = "pin"]
 #[fundamental]
 #[repr(transparent)]
-#[cfg_attr(not(bootstrap), rustc_pub_transparent)]
+#[rustc_pub_transparent]
 #[derive(Copy, Clone)]
 pub struct Pin<Ptr> {
     // FIXME(#93176): this field is made `#[unstable] #[doc(hidden)] pub` to:
diff --git a/library/core/src/slice/mod.rs b/library/core/src/slice/mod.rs
index c7918499d4a..166189f4b6c 100644
--- a/library/core/src/slice/mod.rs
+++ b/library/core/src/slice/mod.rs
@@ -4088,7 +4088,7 @@ impl<T> [T] {
     /// assert!(![0.0, 1.0, f32::NAN].is_sorted());
     /// ```
     #[inline]
-    #[stable(feature = "is_sorted", since = "CURRENT_RUSTC_VERSION")]
+    #[stable(feature = "is_sorted", since = "1.82.0")]
     #[must_use]
     pub fn is_sorted(&self) -> bool
     where
@@ -4115,7 +4115,7 @@ impl<T> [T] {
     /// assert!(empty.is_sorted_by(|a, b| false));
     /// assert!(empty.is_sorted_by(|a, b| true));
     /// ```
-    #[stable(feature = "is_sorted", since = "CURRENT_RUSTC_VERSION")]
+    #[stable(feature = "is_sorted", since = "1.82.0")]
     #[must_use]
     pub fn is_sorted_by<'a, F>(&'a self, mut compare: F) -> bool
     where
@@ -4139,7 +4139,7 @@ impl<T> [T] {
     /// assert!(![-2i32, -1, 0, 3].is_sorted_by_key(|n| n.abs()));
     /// ```
     #[inline]
-    #[stable(feature = "is_sorted", since = "CURRENT_RUSTC_VERSION")]
+    #[stable(feature = "is_sorted", since = "1.82.0")]
     #[must_use]
     pub fn is_sorted_by_key<'a, F, K>(&'a self, f: F) -> bool
     where
diff --git a/library/core/src/str/iter.rs b/library/core/src/str/iter.rs
index 681ec79c0b7..d9301a8a66e 100644
--- a/library/core/src/str/iter.rs
+++ b/library/core/src/str/iter.rs
@@ -269,7 +269,7 @@ impl<'a> CharIndices<'a> {
     /// ```
     #[inline]
     #[must_use]
-    #[stable(feature = "char_indices_offset", since = "CURRENT_RUSTC_VERSION")]
+    #[stable(feature = "char_indices_offset", since = "1.82.0")]
     pub fn offset(&self) -> usize {
         self.front_offset
     }
diff --git a/library/core/src/str/mod.rs b/library/core/src/str/mod.rs
index cf9f1bfc0eb..e947686487e 100644
--- a/library/core/src/str/mod.rs
+++ b/library/core/src/str/mod.rs
@@ -338,9 +338,10 @@ impl str {
     /// assert_eq!("🍔∈🌏", s);
     /// ```
     #[stable(feature = "str_mut_extras", since = "1.20.0")]
+    #[rustc_const_unstable(feature = "const_str_as_mut", issue = "130086")]
     #[must_use]
     #[inline(always)]
-    pub unsafe fn as_bytes_mut(&mut self) -> &mut [u8] {
+    pub const unsafe fn as_bytes_mut(&mut self) -> &mut [u8] {
         // SAFETY: the cast from `&str` to `&[u8]` is safe since `str`
         // has the same layout as `&[u8]` (only std can make this guarantee).
         // The pointer dereference is safe since it comes from a mutable reference which
@@ -383,10 +384,11 @@ impl str {
     /// It is your responsibility to make sure that the string slice only gets
     /// modified in a way that it remains valid UTF-8.
     #[stable(feature = "str_as_mut_ptr", since = "1.36.0")]
+    #[rustc_const_unstable(feature = "const_str_as_mut", issue = "130086")]
     #[rustc_never_returns_null_ptr]
     #[must_use]
     #[inline(always)]
-    pub fn as_mut_ptr(&mut self) -> *mut u8 {
+    pub const fn as_mut_ptr(&mut self) -> *mut u8 {
         self as *mut str as *mut u8
     }
 
diff --git a/library/core/src/task/wake.rs b/library/core/src/task/wake.rs
index 6924b3c13ec..5e559ad8d2c 100644
--- a/library/core/src/task/wake.rs
+++ b/library/core/src/task/wake.rs
@@ -234,7 +234,7 @@ pub struct Context<'a> {
 impl<'a> Context<'a> {
     /// Creates a new `Context` from a [`&Waker`](Waker).
     #[stable(feature = "futures_api", since = "1.36.0")]
-    #[rustc_const_stable(feature = "const_waker", since = "CURRENT_RUSTC_VERSION")]
+    #[rustc_const_stable(feature = "const_waker", since = "1.82.0")]
     #[must_use]
     #[inline]
     pub const fn from_waker(waker: &'a Waker) -> Self {
@@ -245,7 +245,7 @@ impl<'a> Context<'a> {
     #[inline]
     #[must_use]
     #[stable(feature = "futures_api", since = "1.36.0")]
-    #[rustc_const_stable(feature = "const_waker", since = "CURRENT_RUSTC_VERSION")]
+    #[rustc_const_stable(feature = "const_waker", since = "1.82.0")]
     pub const fn waker(&self) -> &'a Waker {
         &self.waker
     }
@@ -321,7 +321,7 @@ impl<'a> ContextBuilder<'a> {
     /// Creates a ContextBuilder from a Waker.
     #[inline]
     #[unstable(feature = "local_waker", issue = "118959")]
-    #[rustc_const_stable(feature = "const_waker", since = "CURRENT_RUSTC_VERSION")]
+    #[rustc_const_stable(feature = "const_waker", since = "1.82.0")]
     pub const fn from_waker(waker: &'a Waker) -> Self {
         // SAFETY: LocalWaker is just Waker without thread safety
         let local_waker = unsafe { transmute(waker) };
@@ -379,7 +379,7 @@ impl<'a> ContextBuilder<'a> {
     /// Builds the `Context`.
     #[inline]
     #[unstable(feature = "local_waker", issue = "118959")]
-    #[rustc_const_stable(feature = "const_waker", since = "CURRENT_RUSTC_VERSION")]
+    #[rustc_const_stable(feature = "const_waker", since = "1.82.0")]
     pub const fn build(self) -> Context<'a> {
         let ContextBuilder { waker, local_waker, ext, _marker, _marker2 } = self;
         Context { waker, local_waker, ext: AssertUnwindSafe(ext), _marker, _marker2 }
@@ -538,7 +538,7 @@ impl Waker {
     #[inline]
     #[must_use]
     #[stable(feature = "futures_api", since = "1.36.0")]
-    #[rustc_const_stable(feature = "const_waker", since = "CURRENT_RUSTC_VERSION")]
+    #[rustc_const_stable(feature = "const_waker", since = "1.82.0")]
     pub const unsafe fn from_raw(waker: RawWaker) -> Waker {
         Waker { waker }
     }
diff --git a/library/core/src/tuple.rs b/library/core/src/tuple.rs
index 9ec92e28450..206b5b9e2c2 100644
--- a/library/core/src/tuple.rs
+++ b/library/core/src/tuple.rs
@@ -154,7 +154,7 @@ macro_rules! tuple_impls {
 // Otherwise, it hides the docs entirely.
 macro_rules! maybe_tuple_doc {
     ($a:ident @ #[$meta:meta] $item:item) => {
-        #[cfg_attr(not(bootstrap), doc(fake_variadic))]
+        #[doc(fake_variadic)]
         #[doc = "This trait is implemented for tuples up to twelve items long."]
         #[$meta]
         $item
diff --git a/library/core/tests/lib.rs b/library/core/tests/lib.rs
index 96fc621494f..dbceb8abafc 100644
--- a/library/core/tests/lib.rs
+++ b/library/core/tests/lib.rs
@@ -1,5 +1,4 @@
 // tidy-alphabetical-start
-#![cfg_attr(bootstrap, feature(offset_of_nested))]
 #![cfg_attr(target_has_atomic = "128", feature(integer_atomics))]
 #![cfg_attr(test, feature(cfg_match))]
 #![feature(alloc_layout_extra)]
diff --git a/library/panic_unwind/src/seh.rs b/library/panic_unwind/src/seh.rs
index 82c248c5a7b..070c11926f6 100644
--- a/library/panic_unwind/src/seh.rs
+++ b/library/panic_unwind/src/seh.rs
@@ -157,9 +157,6 @@ mod imp {
             // going to be cross-lang LTOed anyway. However, using expose is shorter and
             // requires less unsafe.
             let addr: usize = ptr.expose_provenance();
-            #[cfg(bootstrap)]
-            let image_base = unsafe { addr_of!(__ImageBase) }.addr();
-            #[cfg(not(bootstrap))]
             let image_base = addr_of!(__ImageBase).addr();
             let offset: usize = addr - image_base;
             Self(offset as u32)
@@ -253,9 +250,6 @@ extern "C" {
 // This is fine since the MSVC runtime uses string comparison on the type name
 // to match TypeDescriptors rather than pointer equality.
 static mut TYPE_DESCRIPTOR: _TypeDescriptor = _TypeDescriptor {
-    #[cfg(bootstrap)]
-    pVFTable: unsafe { addr_of!(TYPE_INFO_VTABLE) } as *const _,
-    #[cfg(not(bootstrap))]
     pVFTable: addr_of!(TYPE_INFO_VTABLE) as *const _,
     spare: core::ptr::null_mut(),
     name: TYPE_NAME,
diff --git a/library/std/src/env.rs b/library/std/src/env.rs
index e06a851658c..28916130b19 100644
--- a/library/std/src/env.rs
+++ b/library/std/src/env.rs
@@ -354,12 +354,8 @@ impl Error for VarError {
 /// }
 /// assert_eq!(env::var(key), Ok("VALUE".to_string()));
 /// ```
-#[cfg_attr(bootstrap, rustc_deprecated_safe_2024)]
-#[cfg_attr(
-    not(bootstrap),
-    rustc_deprecated_safe_2024(
-        audit_that = "the environment access only happens in single-threaded code"
-    )
+#[rustc_deprecated_safe_2024(
+    audit_that = "the environment access only happens in single-threaded code"
 )]
 #[stable(feature = "env", since = "1.0.0")]
 pub unsafe fn set_var<K: AsRef<OsStr>, V: AsRef<OsStr>>(key: K, value: V) {
@@ -424,12 +420,8 @@ pub unsafe fn set_var<K: AsRef<OsStr>, V: AsRef<OsStr>>(key: K, value: V) {
 /// }
 /// assert!(env::var(key).is_err());
 /// ```
-#[cfg_attr(bootstrap, rustc_deprecated_safe_2024)]
-#[cfg_attr(
-    not(bootstrap),
-    rustc_deprecated_safe_2024(
-        audit_that = "the environment access only happens in single-threaded code"
-    )
+#[rustc_deprecated_safe_2024(
+    audit_that = "the environment access only happens in single-threaded code"
 )]
 #[stable(feature = "env", since = "1.0.0")]
 pub unsafe fn remove_var<K: AsRef<OsStr>>(key: K) {
diff --git a/library/std/src/lib.rs b/library/std/src/lib.rs
index 606d75668c4..60969af3e85 100644
--- a/library/std/src/lib.rs
+++ b/library/std/src/lib.rs
@@ -272,7 +272,6 @@
 //
 // Language features:
 // tidy-alphabetical-start
-#![cfg_attr(bootstrap, feature(min_exhaustive_patterns))]
 #![feature(alloc_error_handler)]
 #![feature(allocator_internals)]
 #![feature(allow_internal_unsafe)]
diff --git a/library/std/src/os/unix/process.rs b/library/std/src/os/unix/process.rs
index 46202441d4e..9aadd949116 100644
--- a/library/std/src/os/unix/process.rs
+++ b/library/std/src/os/unix/process.rs
@@ -118,11 +118,7 @@ pub trait CommandExt: Sealed {
     /// [`pre_exec`]: CommandExt::pre_exec
     #[stable(feature = "process_exec", since = "1.15.0")]
     #[deprecated(since = "1.37.0", note = "should be unsafe, use `pre_exec` instead")]
-    #[cfg_attr(bootstrap, rustc_deprecated_safe_2024)]
-    #[cfg_attr(
-        not(bootstrap),
-        rustc_deprecated_safe_2024(audit_that = "the closure is async-signal-safe")
-    )]
+    #[rustc_deprecated_safe_2024(audit_that = "the closure is async-signal-safe")]
     unsafe fn before_exec<F>(&mut self, f: F) -> &mut process::Command
     where
         F: FnMut() -> io::Result<()> + Send + Sync + 'static,
diff --git a/library/std/src/panicking.rs b/library/std/src/panicking.rs
index 1c972d38100..336e34d7b95 100644
--- a/library/std/src/panicking.rs
+++ b/library/std/src/panicking.rs
@@ -23,8 +23,8 @@ use crate::mem::{self, ManuallyDrop};
 use crate::panic::{BacktraceStyle, PanicHookInfo};
 use crate::sync::atomic::{AtomicBool, Ordering};
 use crate::sync::{PoisonError, RwLock};
-use crate::sys::backtrace;
 use crate::sys::stdio::panic_output;
+use crate::sys::{backtrace, dbg};
 use crate::{fmt, intrinsics, process, thread};
 
 // Binary interface to the panic runtime that the standard library depends on.
@@ -859,6 +859,14 @@ pub fn rust_panic_without_hook(payload: Box<dyn Any + Send>) -> ! {
 #[cfg_attr(not(test), rustc_std_internal_symbol)]
 #[cfg(not(feature = "panic_immediate_abort"))]
 fn rust_panic(msg: &mut dyn PanicPayload) -> ! {
+    // Break into the debugger if it is attached.
+    // The return value is not currently used.
+    //
+    // This function isn't used anywhere else, and
+    // using inside `#[panic_handler]` doesn't seem
+    // to count, so a warning is issued.
+    let _ = dbg::breakpoint_if_debugging();
+
     let code = unsafe { __rust_start_panic(msg) };
     rtabort!("failed to initiate panic, error {code}")
 }
@@ -866,6 +874,14 @@ fn rust_panic(msg: &mut dyn PanicPayload) -> ! {
 #[cfg_attr(not(test), rustc_std_internal_symbol)]
 #[cfg(feature = "panic_immediate_abort")]
 fn rust_panic(_: &mut dyn PanicPayload) -> ! {
+    // Break into the debugger if it is attached.
+    // The return value is not currently used.
+    //
+    // This function isn't used anywhere else, and
+    // using inside `#[panic_handler]` doesn't seem
+    // to count, so a warning is issued.
+    let _ = dbg::breakpoint_if_debugging();
+
     unsafe {
         crate::intrinsics::abort();
     }
diff --git a/library/std/src/sync/condvar.rs b/library/std/src/sync/condvar.rs
index 08d46f356d9..e41cbc1a65c 100644
--- a/library/std/src/sync/condvar.rs
+++ b/library/std/src/sync/condvar.rs
@@ -195,8 +195,11 @@ impl Condvar {
         if poisoned { Err(PoisonError::new(guard)) } else { Ok(guard) }
     }
 
-    /// Blocks the current thread until this condition variable receives a
-    /// notification and the provided condition is false.
+    /// Blocks the current thread until the provided condition becomes false.
+    ///
+    /// `condition` is checked immediately; if not met (returns `true`), this
+    /// will [`wait`] for the next notification then check again. This repeats
+    /// until `condition` returns `false`, in which case this function returns.
     ///
     /// This function will atomically unlock the mutex specified (represented by
     /// `guard`) and block the current thread. This means that any calls
@@ -210,6 +213,7 @@ impl Condvar {
     /// poisoned when this thread re-acquires the lock. For more information,
     /// see information about [poisoning] on the [`Mutex`] type.
     ///
+    /// [`wait`]: Self::wait
     /// [`notify_one`]: Self::notify_one
     /// [`notify_all`]: Self::notify_all
     /// [poisoning]: super::Mutex#poisoning
diff --git a/library/std/src/sys/dbg.rs b/library/std/src/sys/dbg.rs
new file mode 100644
index 00000000000..a6e78db3c86
--- /dev/null
+++ b/library/std/src/sys/dbg.rs
@@ -0,0 +1,229 @@
+//! Debugging aids.
+
+/// Presence of a debugger. The debugger being concerned
+/// is expected to use the OS API to debug this process.
+#[derive(Copy, Clone, Debug)]
+#[allow(unused)]
+pub(crate) enum DebuggerPresence {
+    /// The debugger is attached to this process.
+    Detected,
+    /// The debugger is not attached to this process.
+    NotDetected,
+}
+
+#[cfg(target_os = "windows")]
+mod os {
+    use super::DebuggerPresence;
+
+    #[link(name = "kernel32")]
+    extern "system" {
+        fn IsDebuggerPresent() -> i32;
+    }
+
+    pub(super) fn is_debugger_present() -> Option<DebuggerPresence> {
+        // SAFETY: No state is shared between threads. The call reads
+        // a field from the Thread Environment Block using the OS API
+        // as required by the documentation.
+        if unsafe { IsDebuggerPresent() } != 0 {
+            Some(DebuggerPresence::Detected)
+        } else {
+            Some(DebuggerPresence::NotDetected)
+        }
+    }
+}
+
+#[cfg(any(target_vendor = "apple", target_os = "freebsd"))]
+mod os {
+    use libc::{c_int, sysctl, CTL_KERN, KERN_PROC, KERN_PROC_PID};
+
+    use super::DebuggerPresence;
+    use crate::io::{Cursor, Read, Seek, SeekFrom};
+    use crate::process;
+
+    const P_TRACED: i32 = 0x00000800;
+
+    // The assumption is that the kernel structures available to the
+    // user space may not shrink or repurpose the existing fields over
+    // time. The kernels normally adhere to that for the backward
+    // compatibility of the user space.
+
+    // The macOS 14.5 SDK comes with a header `MacOSX14.5.sdk/usr/include/sys/sysctl.h`
+    // that defines `struct kinfo_proc` be of `648` bytes on the 64-bit system. That has
+    // not changed since macOS 10.13 (released in 2017) at least, validated by building
+    // a C program in XCode while changing the build target. Apple provides this example
+    // for reference: https://developer.apple.com/library/archive/qa/qa1361/_index.html.
+    #[cfg(target_vendor = "apple")]
+    const KINFO_PROC_SIZE: usize = if cfg!(target_pointer_width = "64") { 648 } else { 492 };
+    #[cfg(target_vendor = "apple")]
+    const KINFO_PROC_FLAGS_OFFSET: u64 = if cfg!(target_pointer_width = "64") { 32 } else { 16 };
+
+    // Works for FreeBSD stable (13.3, 13.4) and current (14.0, 14.1).
+    // The size of the structure has stayed the same for a long time,
+    // at least since 2005:
+    // https://lists.freebsd.org/pipermail/freebsd-stable/2005-November/019899.html
+    #[cfg(target_os = "freebsd")]
+    const KINFO_PROC_SIZE: usize = if cfg!(target_pointer_width = "64") { 1088 } else { 768 };
+    #[cfg(target_os = "freebsd")]
+    const KINFO_PROC_FLAGS_OFFSET: u64 = if cfg!(target_pointer_width = "64") { 368 } else { 296 };
+
+    pub(super) fn is_debugger_present() -> Option<DebuggerPresence> {
+        debug_assert_ne!(KINFO_PROC_SIZE, 0);
+
+        let mut flags = [0u8; 4]; // `ki_flag` under FreeBSD and `p_flag` under macOS.
+        let mut mib = [CTL_KERN, KERN_PROC, KERN_PROC_PID, process::id() as c_int];
+        let mut info_size = KINFO_PROC_SIZE;
+        let mut kinfo_proc = [0u8; KINFO_PROC_SIZE];
+
+        // SAFETY: No state is shared with other threads. The sysctl call
+        // is safe according to the documentation.
+        if unsafe {
+            sysctl(
+                mib.as_mut_ptr(),
+                mib.len() as u32,
+                kinfo_proc.as_mut_ptr().cast(),
+                &mut info_size,
+                core::ptr::null_mut(),
+                0,
+            )
+        } != 0
+        {
+            return None;
+        }
+        debug_assert_eq!(info_size, KINFO_PROC_SIZE);
+
+        let mut reader = Cursor::new(kinfo_proc);
+        reader.seek(SeekFrom::Start(KINFO_PROC_FLAGS_OFFSET)).ok()?;
+        reader.read_exact(&mut flags).ok()?;
+        // Just in case, not limiting this to the little-endian systems.
+        let flags = i32::from_ne_bytes(flags);
+
+        if flags & P_TRACED != 0 {
+            Some(DebuggerPresence::Detected)
+        } else {
+            Some(DebuggerPresence::NotDetected)
+        }
+    }
+}
+
+#[cfg(target_os = "linux")]
+mod os {
+    use super::DebuggerPresence;
+    use crate::fs::File;
+    use crate::io::Read;
+
+    pub(super) fn is_debugger_present() -> Option<DebuggerPresence> {
+        // This function is crafted with the following goals:
+        // * Memory efficiency: It avoids crashing the panicking process due to
+        //   out-of-memory (OOM) conditions by not using large heap buffers or
+        //   allocating significant stack space, which could lead to stack overflow.
+        // * Minimal binary size: The function uses a minimal set of facilities
+        //   from the standard library to avoid increasing the resulting binary size.
+        //
+        // To achieve these goals, the function does not use `[std::io::BufReader]`
+        // and instead reads the file byte by byte using a sliding window approach.
+        // It's important to note that the "/proc/self/status" pseudo-file is synthesized
+        // by the Virtual File System (VFS), meaning it is not read from a slow or
+        // non-volatile storage medium so buffering might not be as beneficial because
+        // all data is read from memory, though this approach does incur a syscall for
+        // each byte read.
+        //
+        // We cannot make assumptions about the file size or the position of the
+        // target prefix ("TracerPid:"), so the function does not use
+        // `[std::fs::read_to_string]` thus not employing UTF-8 to ASCII checking,
+        // conversion, or parsing as we're looking for an ASCII prefix.
+        //
+        // These condiderations make the function deviate from the familiar concise pattern
+        // of searching for a string in a text file.
+
+        fn read_byte(file: &mut File) -> Option<u8> {
+            let mut buffer = [0];
+            file.read_exact(&mut buffer).ok()?;
+            Some(buffer[0])
+        }
+
+        // The ASCII prefix of the datum we're interested in.
+        const TRACER_PID: &[u8] = b"TracerPid:\t";
+
+        let mut file = File::open("/proc/self/status").ok()?;
+        let mut matched = 0;
+
+        // Look for the `TRACER_PID` prefix.
+        while let Some(byte) = read_byte(&mut file) {
+            if byte == TRACER_PID[matched] {
+                matched += 1;
+                if matched == TRACER_PID.len() {
+                    break;
+                }
+            } else {
+                matched = 0;
+            }
+        }
+
+        // Was the prefix found?
+        if matched != TRACER_PID.len() {
+            return None;
+        }
+
+        // It was; get the ASCII representation of the first digit
+        // of the PID. That is enough to see if there is a debugger
+        // attached as the kernel does not pad the PID on the left
+        // with the leading zeroes.
+        let byte = read_byte(&mut file)?;
+        if byte.is_ascii_digit() && byte != b'0' {
+            Some(DebuggerPresence::Detected)
+        } else {
+            Some(DebuggerPresence::NotDetected)
+        }
+    }
+}
+
+#[cfg(not(any(
+    target_os = "windows",
+    target_vendor = "apple",
+    target_os = "freebsd",
+    target_os = "linux"
+)))]
+mod os {
+    pub(super) fn is_debugger_present() -> Option<super::DebuggerPresence> {
+        None
+    }
+}
+
+/// Detect the debugger presence.
+///
+/// The code does not try to detect the debugger at all costs (e.g., when anti-debugger
+/// tricks are at play), it relies on the interfaces provided by the OS.
+///
+/// Return value:
+/// * `None`: it's not possible to conclude whether the debugger is attached to this
+///    process or not. When checking for the presence of the debugger, the detection logic
+///    encountered an issue, such as the OS API throwing an error or the feature not being
+///    implemented.
+/// * `Some(DebuggerPresence::Detected)`: yes, the debugger is attached
+///   to this process.
+/// * `Some(DebuggerPresence::NotDetected)`: no, the debugger is not
+///    attached to this process.
+pub(crate) fn is_debugger_present() -> Option<DebuggerPresence> {
+    if cfg!(miri) { None } else { os::is_debugger_present() }
+}
+
+/// Execute the breakpoint instruction if the debugger presence is detected.
+/// Useful for breaking into the debugger without the need to set a breakpoint
+/// in the debugger.
+///
+/// Note that there is a race between attaching or detaching the debugger, and running the
+/// breakpoint instruction. This is nonetheless memory-safe, like [`crate::process::abort`]
+/// is. In case the debugger is attached and the function is about
+/// to run the breakpoint instruction yet right before that the debugger detaches, the
+/// process will crash due to running the breakpoint instruction and the debugger not
+/// handling the trap exception.
+pub(crate) fn breakpoint_if_debugging() -> Option<DebuggerPresence> {
+    let debugger_present = is_debugger_present();
+    if let Some(DebuggerPresence::Detected) = debugger_present {
+        // SAFETY: Executing the breakpoint instruction. No state is shared
+        // or modified by this code.
+        unsafe { core::intrinsics::breakpoint() };
+    }
+
+    debugger_present
+}
diff --git a/library/std/src/sys/mod.rs b/library/std/src/sys/mod.rs
index 1ef17dd530f..96d6f2c87c4 100644
--- a/library/std/src/sys/mod.rs
+++ b/library/std/src/sys/mod.rs
@@ -11,6 +11,7 @@ mod personality;
 pub mod anonymous_pipe;
 pub mod backtrace;
 pub mod cmath;
+pub mod dbg;
 pub mod exit_guard;
 pub mod os_str;
 pub mod path;
diff --git a/library/std/src/thread/mod.rs b/library/std/src/thread/mod.rs
index e29c28f3c7e..0fc63c5081b 100644
--- a/library/std/src/thread/mod.rs
+++ b/library/std/src/thread/mod.rs
@@ -432,7 +432,7 @@ impl Builder {
     /// ```
     ///
     /// [`io::Result`]: crate::io::Result
-    #[stable(feature = "thread_spawn_unchecked", since = "CURRENT_RUSTC_VERSION")]
+    #[stable(feature = "thread_spawn_unchecked", since = "1.82.0")]
     pub unsafe fn spawn_unchecked<F, T>(self, f: F) -> io::Result<JoinHandle<T>>
     where
         F: FnOnce() -> T,
diff --git a/library/windows_targets/src/lib.rs b/library/windows_targets/src/lib.rs
index 1965b6cf4ce..395cd6a4bab 100644
--- a/library/windows_targets/src/lib.rs
+++ b/library/windows_targets/src/lib.rs
@@ -38,4 +38,5 @@ pub macro link {
 #[link(name = "ntdll")]
 #[link(name = "userenv")]
 #[link(name = "ws2_32")]
+#[link(name = "dbghelp")] // required for backtrace-rs symbolization
 extern "C" {}
diff --git a/src/bootstrap/bootstrap.py b/src/bootstrap/bootstrap.py
index 71f69e03a9f..666df49012c 100644
--- a/src/bootstrap/bootstrap.py
+++ b/src/bootstrap/bootstrap.py
@@ -106,22 +106,29 @@ def _download(path, url, probably_big, verbose, exception):
 
     try:
         if (probably_big or verbose) and "GITHUB_ACTIONS" not in os.environ:
-            option = "-#"
+            option = "--progress-bar"
         else:
-            option = "-s"
+            option = "--silent"
         # If curl is not present on Win32, we should not sys.exit
         #   but raise `CalledProcessError` or `OSError` instead
         require(["curl", "--version"], exception=platform_is_win32())
         extra_flags = []
         if curl_version() > (7, 70):
             extra_flags = [ "--retry-all-errors" ]
+        # options should be kept in sync with
+        # src/bootstrap/src/core/download.rs
+        # for consistency.
+        # they are also more compreprensivly explained in that file.
         run(["curl", option] + extra_flags + [
-            "-L", # Follow redirect.
-            "-y", "30", "-Y", "10",    # timeout if speed is < 10 bytes/sec for > 30 seconds
-            "--connect-timeout", "30",  # timeout if cannot connect within 30 seconds
-            "-o", path,
+            # Follow redirect.
+            "--location",
+            # timeout if speed is < 10 bytes/sec for > 30 seconds
+            "--speed-time", "30", "--speed-limit", "10",
+            # timeout if cannot connect within 30 seconds
+            "--connect-timeout", "30",
+            "--output", path,
             "--continue-at", "-",
-            "--retry", "3", "-SRf", url],
+            "--retry", "3", "--show-error", "--remote-time", "--fail", url],
             verbose=verbose,
             exception=True, # Will raise RuntimeError on failure
         )
diff --git a/src/bootstrap/src/core/build_steps/compile.rs b/src/bootstrap/src/core/build_steps/compile.rs
index 1936c91ef83..102c9fd2554 100644
--- a/src/bootstrap/src/core/build_steps/compile.rs
+++ b/src/bootstrap/src/core/build_steps/compile.rs
@@ -1912,7 +1912,7 @@ impl Step for Assemble {
         // delegates to the `rust-lld` binary for linking and then runs
         // logic to create the final binary. This is used by the
         // `wasm32-wasip2` target of Rust.
-        if builder.build_wasm_component_ld() {
+        if builder.tool_enabled("wasm-component-ld") {
             let wasm_component_ld_exe =
                 builder.ensure(crate::core::build_steps::tool::WasmComponentLd {
                     compiler: build_compiler,
diff --git a/src/bootstrap/src/core/build_steps/dist.rs b/src/bootstrap/src/core/build_steps/dist.rs
index 4957de2e1b7..ccb5656d671 100644
--- a/src/bootstrap/src/core/build_steps/dist.rs
+++ b/src/bootstrap/src/core/build_steps/dist.rs
@@ -473,7 +473,7 @@ impl Step for Rustc {
                     );
                 }
             }
-            if builder.build_wasm_component_ld() {
+            if builder.tool_enabled("wasm-component-ld") {
                 let src_dir = builder.sysroot_libdir(compiler, host).parent().unwrap().join("bin");
                 let ld = exe("wasm-component-ld", compiler.host);
                 builder.copy_link(&src_dir.join(&ld), &dst_dir.join(&ld));
diff --git a/src/bootstrap/src/core/build_steps/tool.rs b/src/bootstrap/src/core/build_steps/tool.rs
index 3a1eb43b801..3c2d791c209 100644
--- a/src/bootstrap/src/core/build_steps/tool.rs
+++ b/src/bootstrap/src/core/build_steps/tool.rs
@@ -693,14 +693,7 @@ impl Step for Cargo {
 
     fn should_run(run: ShouldRun<'_>) -> ShouldRun<'_> {
         let builder = run.builder;
-        run.path("src/tools/cargo").default_condition(
-            builder.config.extended
-                && builder.config.tools.as_ref().map_or(
-                    true,
-                    // If `tools` is set, search list for this tool.
-                    |tools| tools.iter().any(|tool| tool == "cargo"),
-                ),
-        )
+        run.path("src/tools/cargo").default_condition(builder.tool_enabled("cargo"))
     }
 
     fn make_run(run: RunConfig<'_>) {
@@ -772,14 +765,7 @@ impl Step for RustAnalyzer {
 
     fn should_run(run: ShouldRun<'_>) -> ShouldRun<'_> {
         let builder = run.builder;
-        run.path("src/tools/rust-analyzer").default_condition(
-            builder.config.extended
-                && builder
-                    .config
-                    .tools
-                    .as_ref()
-                    .map_or(true, |tools| tools.iter().any(|tool| tool == "rust-analyzer")),
-        )
+        run.path("src/tools/rust-analyzer").default_condition(builder.tool_enabled("rust-analyzer"))
     }
 
     fn make_run(run: RunConfig<'_>) {
@@ -821,12 +807,8 @@ impl Step for RustAnalyzerProcMacroSrv {
         run.path("src/tools/rust-analyzer")
             .path("src/tools/rust-analyzer/crates/proc-macro-srv-cli")
             .default_condition(
-                builder.config.extended
-                    && builder.config.tools.as_ref().map_or(true, |tools| {
-                        tools.iter().any(|tool| {
-                            tool == "rust-analyzer" || tool == "rust-analyzer-proc-macro-srv"
-                        })
-                    }),
+                builder.tool_enabled("rust-analyzer")
+                    || builder.tool_enabled("rust-analyzer-proc-macro-srv"),
             )
     }
 
@@ -874,16 +856,8 @@ impl Step for LlvmBitcodeLinker {
 
     fn should_run(run: ShouldRun<'_>) -> ShouldRun<'_> {
         let builder = run.builder;
-        run.path("src/tools/llvm-bitcode-linker").default_condition(
-            builder.config.extended
-                && builder
-                    .config
-                    .tools
-                    .as_ref()
-                    .map_or(builder.build.unstable_features(), |tools| {
-                        tools.iter().any(|tool| tool == "llvm-bitcode-linker")
-                    }),
-        )
+        run.path("src/tools/llvm-bitcode-linker")
+            .default_condition(builder.tool_enabled("llvm-bitcode-linker"))
     }
 
     fn make_run(run: RunConfig<'_>) {
diff --git a/src/bootstrap/src/core/builder.rs b/src/bootstrap/src/core/builder.rs
index a28b19d33a6..8f7ade79403 100644
--- a/src/bootstrap/src/core/builder.rs
+++ b/src/bootstrap/src/core/builder.rs
@@ -2463,7 +2463,15 @@ impl Cargo {
         cmd_kind: Kind,
     ) -> Cargo {
         let mut cargo = builder.cargo(compiler, mode, source_type, target, cmd_kind);
-        cargo.configure_linker(builder);
+
+        match cmd_kind {
+            // No need to configure the target linker for these command types.
+            Kind::Clean | Kind::Check | Kind::Suggest | Kind::Format | Kind::Setup => {}
+            _ => {
+                cargo.configure_linker(builder);
+            }
+        }
+
         cargo
     }
 
diff --git a/src/bootstrap/src/core/config/flags.rs b/src/bootstrap/src/core/config/flags.rs
index c3f17402814..effc5f50911 100644
--- a/src/bootstrap/src/core/config/flags.rs
+++ b/src/bootstrap/src/core/config/flags.rs
@@ -143,9 +143,6 @@ pub struct Flags {
     /// Unless you know exactly what you are doing, you probably don't need this.
     pub bypass_bootstrap_lock: bool,
 
-    /// whether rebuilding llvm should be skipped, overriding `skip-rebuld` in config.toml
-    #[arg(global = true, long, value_name = "VALUE")]
-    pub llvm_skip_rebuild: Option<bool>,
     /// generate PGO profile with rustc build
     #[arg(global = true, value_hint = clap::ValueHint::FilePath, long, value_name = "PROFILE")]
     pub rust_profile_generate: Option<String>,
diff --git a/src/bootstrap/src/core/download.rs b/src/bootstrap/src/core/download.rs
index 1e3f8da5258..3f5ec70b9ab 100644
--- a/src/bootstrap/src/core/download.rs
+++ b/src/bootstrap/src/core/download.rs
@@ -228,25 +228,42 @@ impl Config {
     fn download_http_with_retries(&self, tempfile: &Path, url: &str, help_on_error: &str) {
         println!("downloading {url}");
         // Try curl. If that fails and we are on windows, fallback to PowerShell.
+        // options should be kept in sync with
+        // src/bootstrap/src/core/download.rs
+        // for consistency
         let mut curl = command("curl");
         curl.args([
-            "-y",
+            // follow redirect
+            "--location",
+            // timeout if speed is < 10 bytes/sec for > 30 seconds
+            "--speed-time",
             "30",
-            "-Y",
-            "10", // timeout if speed is < 10 bytes/sec for > 30 seconds
+            "--speed-limit",
+            "10",
+            // timeout if cannot connect within 30 seconds
             "--connect-timeout",
-            "30", // timeout if cannot connect within 30 seconds
-            "-o",
+            "30",
+            // output file
+            "--output",
             tempfile.to_str().unwrap(),
+            // if there is an error, don't restart the download,
+            // instead continue where it left off.
             "--continue-at",
             "-",
+            // retry up to 3 times.  note that this means a maximum of 4
+            // attempts will be made, since the first attempt isn't a *re*try.
             "--retry",
             "3",
-            "-SRf",
+            // show errors, even if --silent is specified
+            "--show-error",
+            // set timestamp of downloaded file to that of the server
+            "--remote-time",
+            // fail on non-ok http status
+            "--fail",
         ]);
         // Don't print progress in CI; the \r wrapping looks bad and downloads don't take long enough for progress to be useful.
         if CiEnv::is_ci() {
-            curl.arg("-s");
+            curl.arg("--silent");
         } else {
             curl.arg("--progress-bar");
         }
diff --git a/src/bootstrap/src/lib.rs b/src/bootstrap/src/lib.rs
index c76ce340956..780024e307e 100644
--- a/src/bootstrap/src/lib.rs
+++ b/src/bootstrap/src/lib.rs
@@ -1407,16 +1407,17 @@ Executed at: {executed_at}"#,
         None
     }
 
-    /// Returns whether it's requested that `wasm-component-ld` is built as part
-    /// of the sysroot. This is done either with the `extended` key in
-    /// `config.toml` or with the `tools` set.
-    fn build_wasm_component_ld(&self) -> bool {
-        if self.config.extended {
-            return true;
+    /// Returns whether the specified tool is configured as part of this build.
+    ///
+    /// This requires that both the `extended` key is set and the `tools` key is
+    /// either unset or specifically contains the specified tool.
+    fn tool_enabled(&self, tool: &str) -> bool {
+        if !self.config.extended {
+            return false;
         }
         match &self.config.tools {
-            Some(set) => set.contains("wasm-component-ld"),
-            None => false,
+            Some(set) => set.contains(tool),
+            None => true,
         }
     }
 
diff --git a/src/bootstrap/src/utils/cc_detect.rs b/src/bootstrap/src/utils/cc_detect.rs
index 29e6b74aace..a2c7ab31df8 100644
--- a/src/bootstrap/src/utils/cc_detect.rs
+++ b/src/bootstrap/src/utils/cc_detect.rs
@@ -87,15 +87,29 @@ fn new_cc_build(build: &Build, target: TargetSelection) -> cc::Build {
 }
 
 pub fn find(build: &Build) {
-    // For all targets we're going to need a C compiler for building some shims
-    // and such as well as for being a linker for Rust code.
-    let targets = build
-        .targets
-        .iter()
-        .chain(&build.hosts)
-        .cloned()
-        .chain(iter::once(build.build))
-        .collect::<HashSet<_>>();
+    let targets: HashSet<_> = match build.config.cmd {
+        // We don't need to check cross targets for these commands.
+        crate::Subcommand::Clean { .. }
+        | crate::Subcommand::Check { .. }
+        | crate::Subcommand::Suggest { .. }
+        | crate::Subcommand::Format { .. }
+        | crate::Subcommand::Setup { .. } => {
+            build.hosts.iter().cloned().chain(iter::once(build.build)).collect()
+        }
+
+        _ => {
+            // For all targets we're going to need a C compiler for building some shims
+            // and such as well as for being a linker for Rust code.
+            build
+                .targets
+                .iter()
+                .chain(&build.hosts)
+                .cloned()
+                .chain(iter::once(build.build))
+                .collect()
+        }
+    };
+
     for target in targets.into_iter() {
         find_target(build, target);
     }
diff --git a/src/ci/docker/host-x86_64/x86_64-gnu-tools/checktools.sh b/src/ci/docker/host-x86_64/x86_64-gnu-tools/checktools.sh
index a5a5acc333b..303a2f26c0f 100755
--- a/src/ci/docker/host-x86_64/x86_64-gnu-tools/checktools.sh
+++ b/src/ci/docker/host-x86_64/x86_64-gnu-tools/checktools.sh
@@ -58,8 +58,9 @@ case $HOST_TARGET in
     # Strangely, Linux targets do not work here. cargo always says
     # "error: cannot produce cdylib for ... as the target ... does not support these crate types".
     # Only run "pass" tests, which is quite a bit faster.
-    python3 "$X_PY" test --stage 2 src/tools/miri --target aarch64-apple-darwin --test-args pass
-    python3 "$X_PY" test --stage 2 src/tools/miri --target i686-pc-windows-gnu --test-args pass
+    #FIXME: Re-enable this once CI issues are fixed
+    #python3 "$X_PY" test --stage 2 src/tools/miri --target aarch64-apple-darwin --test-args pass
+    #python3 "$X_PY" test --stage 2 src/tools/miri --target i686-pc-windows-gnu --test-args pass
     ;;
   *)
     echo "FATAL: unexpected host $HOST_TARGET"
@@ -68,6 +69,10 @@ case $HOST_TARGET in
 esac
 # Also smoke-test `x.py miri`. This doesn't run any actual tests (that would take too long),
 # but it ensures that the crates build properly when tested with Miri.
-python3 "$X_PY" miri --stage 2 library/core --test-args notest
-python3 "$X_PY" miri --stage 2 library/alloc --test-args notest
-python3 "$X_PY" miri --stage 2 library/std --test-args notest
+
+#FIXME: Re-enable this for msvc once CI issues are fixed
+if [ "$HOST_TARGET" != "x86_64-pc-windows-msvc" ]; then
+  python3 "$X_PY" miri --stage 2 library/core --test-args notest
+  python3 "$X_PY" miri --stage 2 library/alloc --test-args notest
+  python3 "$X_PY" miri --stage 2 library/std --test-args notest
+fi
diff --git a/src/ci/github-actions/jobs.yml b/src/ci/github-actions/jobs.yml
index 4de44c6dd39..e237e98b7b7 100644
--- a/src/ci/github-actions/jobs.yml
+++ b/src/ci/github-actions/jobs.yml
@@ -373,6 +373,18 @@ auto:
       DEPLOY_TOOLSTATES_JSON: toolstates-windows.json
     <<: *job-windows-8c
 
+  # Temporary builder to workaround CI issues
+  - image: x86_64-msvc-ext2
+    env:
+      SCRIPT: >
+        python x.py test --stage 2 src/tools/miri --target aarch64-apple-darwin --test-args pass &&
+        python x.py test --stage 2 src/tools/miri --target i686-pc-windows-gnu --test-args pass &&
+        python x.py miri --stage 2 library/core --test-args notest &&
+        python x.py miri --stage 2 library/alloc --test-args notest &&
+        python x.py miri --stage 2 library/std --test-args notest
+      RUST_CONFIGURE_ARGS: --build=x86_64-pc-windows-msvc --enable-lld
+    <<: *job-windows-8c
+
   # 32/64-bit MinGW builds.
   #
   # We are using MinGW with POSIX threads since LLVM requires
diff --git a/src/ci/scripts/install-mingw.sh b/src/ci/scripts/install-mingw.sh
index 31aa3785bc3..91eab2e7a08 100755
--- a/src/ci/scripts/install-mingw.sh
+++ b/src/ci/scripts/install-mingw.sh
@@ -6,8 +6,8 @@ IFS=$'\n\t'
 
 source "$(cd "$(dirname "$0")" && pwd)/../shared.sh"
 
-MINGW_ARCHIVE_32="i686-12.2.0-release-posix-dwarf-rt_v10-rev0.7z"
-MINGW_ARCHIVE_64="x86_64-12.2.0-release-posix-seh-rt_v10-rev0.7z"
+MINGW_ARCHIVE_32="i686-14.1.0-release-posix-dwarf-msvcrt-rt_v12-rev0.7z"
+MINGW_ARCHIVE_64="x86_64-14.1.0-release-posix-seh-msvcrt-rt_v12-rev0.7z"
 
 if isWindows && isKnownToBeMingwBuild; then
     case "${CI_JOB_NAME}" in
diff --git a/src/doc/rustc/src/platform-support.md b/src/doc/rustc/src/platform-support.md
index 319dc9a7c08..9a35b35af71 100644
--- a/src/doc/rustc/src/platform-support.md
+++ b/src/doc/rustc/src/platform-support.md
@@ -382,6 +382,7 @@ target | std | host | notes
 [`x86_64-unikraft-linux-musl`](platform-support/unikraft-linux-musl.md) | ✓ |   | 64-bit Unikraft with musl 1.2.3
 `x86_64-unknown-dragonfly` | ✓ | ✓ | 64-bit DragonFlyBSD
 `x86_64-unknown-haiku` | ✓ | ✓ | 64-bit Haiku
+[`x86_64-unknown-hurd-gnu`](platform-support/hurd.md) | ✓ | ✓ | 64-bit GNU/Hurd
 [`x86_64-unknown-hermit`](platform-support/hermit.md) | ✓ |  | x86_64 Hermit
 `x86_64-unknown-l4re-uclibc` | ? |  |
 [`x86_64-unknown-openbsd`](platform-support/openbsd.md) | ✓ | ✓ | 64-bit OpenBSD
diff --git a/src/doc/rustc/src/platform-support/hurd.md b/src/doc/rustc/src/platform-support/hurd.md
index ddf40213ed4..2521f79dc5e 100644
--- a/src/doc/rustc/src/platform-support/hurd.md
+++ b/src/doc/rustc/src/platform-support/hurd.md
@@ -1,4 +1,4 @@
-# `i686-unknown-hurd-gnu`
+# `i686-unknown-hurd-gnu` and `x86_64-unknown-hurd-gnu`
 
 **Tier: 3**
 
@@ -16,7 +16,8 @@ The GNU/Hurd target supports `std` and uses the standard ELF file format.
 
 ## Building the target
 
-This target can be built by adding `i686-unknown-hurd-gnu` as target in the rustc list.
+This target can be built by adding `i686-unknown-hurd-gnu` and
+`x86_64-unknown-hurd-gnu` as targets in the rustc list.
 
 ## Building Rust programs
 
@@ -32,4 +33,4 @@ Tests can be run in the same way as a regular binary.
 ## Cross-compilation toolchains and C code
 
 The target supports C code, the GNU toolchain calls the target
-`i686-unknown-gnu`.
+`i686-unknown-gnu` and `x86_64-unknown-gnu`.
diff --git a/src/etc/completions/x.py.fish b/src/etc/completions/x.py.fish
index 3a83c89280f..df31b0d644e 100644
--- a/src/etc/completions/x.py.fish
+++ b/src/etc/completions/x.py.fish
@@ -1,6 +1,6 @@
 # Print an optspec for argparse to handle cmd's options that are independent of any subcommand.
 function __fish_x.py_global_optspecs
-	string join \n v/verbose i/incremental config= build-dir= build= host= target= exclude= skip= include-default-paths rustc-error-format= on-fail= dry-run dump-bootstrap-shims stage= keep-stage= keep-stage-std= src= j/jobs= warnings= error-format= json-output color= bypass-bootstrap-lock llvm-skip-rebuild= rust-profile-generate= rust-profile-use= llvm-profile-use= llvm-profile-generate enable-bolt-settings skip-stage0-validation reproducible-artifact= set= h/help
+	string join \n v/verbose i/incremental config= build-dir= build= host= target= exclude= skip= include-default-paths rustc-error-format= on-fail= dry-run dump-bootstrap-shims stage= keep-stage= keep-stage-std= src= j/jobs= warnings= error-format= json-output color= bypass-bootstrap-lock rust-profile-generate= rust-profile-use= llvm-profile-use= llvm-profile-generate enable-bolt-settings skip-stage0-validation reproducible-artifact= set= h/help
 end
 
 function __fish_x.py_needs_command
@@ -41,7 +41,6 @@ complete -c x.py -n "__fish_x.py_needs_command" -s j -l jobs -d 'number of jobs
 complete -c x.py -n "__fish_x.py_needs_command" -l warnings -d 'if value is deny, will deny warnings if value is warn, will emit warnings otherwise, use the default configured behaviour' -r -f -a "{deny\t'',warn\t'',default\t''}"
 complete -c x.py -n "__fish_x.py_needs_command" -l error-format -d 'rustc error format' -r -f
 complete -c x.py -n "__fish_x.py_needs_command" -l color -d 'whether to use color in cargo and rustc output' -r -f -a "{always\t'',never\t'',auto\t''}"
-complete -c x.py -n "__fish_x.py_needs_command" -l llvm-skip-rebuild -d 'whether rebuilding llvm should be skipped, overriding `skip-rebuld` in config.toml' -r -f -a "{true\t'',false\t''}"
 complete -c x.py -n "__fish_x.py_needs_command" -l rust-profile-generate -d 'generate PGO profile with rustc build' -r -F
 complete -c x.py -n "__fish_x.py_needs_command" -l rust-profile-use -d 'use PGO profile for rustc build' -r -F
 complete -c x.py -n "__fish_x.py_needs_command" -l llvm-profile-use -d 'use PGO profile for LLVM build' -r -F
@@ -92,7 +91,6 @@ complete -c x.py -n "__fish_x.py_using_subcommand build" -s j -l jobs -d 'number
 complete -c x.py -n "__fish_x.py_using_subcommand build" -l warnings -d 'if value is deny, will deny warnings if value is warn, will emit warnings otherwise, use the default configured behaviour' -r -f -a "{deny\t'',warn\t'',default\t''}"
 complete -c x.py -n "__fish_x.py_using_subcommand build" -l error-format -d 'rustc error format' -r -f
 complete -c x.py -n "__fish_x.py_using_subcommand build" -l color -d 'whether to use color in cargo and rustc output' -r -f -a "{always\t'',never\t'',auto\t''}"
-complete -c x.py -n "__fish_x.py_using_subcommand build" -l llvm-skip-rebuild -d 'whether rebuilding llvm should be skipped, overriding `skip-rebuld` in config.toml' -r -f -a "{true\t'',false\t''}"
 complete -c x.py -n "__fish_x.py_using_subcommand build" -l rust-profile-generate -d 'generate PGO profile with rustc build' -r -F
 complete -c x.py -n "__fish_x.py_using_subcommand build" -l rust-profile-use -d 'use PGO profile for rustc build' -r -F
 complete -c x.py -n "__fish_x.py_using_subcommand build" -l llvm-profile-use -d 'use PGO profile for LLVM build' -r -F
@@ -126,7 +124,6 @@ complete -c x.py -n "__fish_x.py_using_subcommand check" -s j -l jobs -d 'number
 complete -c x.py -n "__fish_x.py_using_subcommand check" -l warnings -d 'if value is deny, will deny warnings if value is warn, will emit warnings otherwise, use the default configured behaviour' -r -f -a "{deny\t'',warn\t'',default\t''}"
 complete -c x.py -n "__fish_x.py_using_subcommand check" -l error-format -d 'rustc error format' -r -f
 complete -c x.py -n "__fish_x.py_using_subcommand check" -l color -d 'whether to use color in cargo and rustc output' -r -f -a "{always\t'',never\t'',auto\t''}"
-complete -c x.py -n "__fish_x.py_using_subcommand check" -l llvm-skip-rebuild -d 'whether rebuilding llvm should be skipped, overriding `skip-rebuld` in config.toml' -r -f -a "{true\t'',false\t''}"
 complete -c x.py -n "__fish_x.py_using_subcommand check" -l rust-profile-generate -d 'generate PGO profile with rustc build' -r -F
 complete -c x.py -n "__fish_x.py_using_subcommand check" -l rust-profile-use -d 'use PGO profile for rustc build' -r -F
 complete -c x.py -n "__fish_x.py_using_subcommand check" -l llvm-profile-use -d 'use PGO profile for LLVM build' -r -F
@@ -165,7 +162,6 @@ complete -c x.py -n "__fish_x.py_using_subcommand clippy" -s j -l jobs -d 'numbe
 complete -c x.py -n "__fish_x.py_using_subcommand clippy" -l warnings -d 'if value is deny, will deny warnings if value is warn, will emit warnings otherwise, use the default configured behaviour' -r -f -a "{deny\t'',warn\t'',default\t''}"
 complete -c x.py -n "__fish_x.py_using_subcommand clippy" -l error-format -d 'rustc error format' -r -f
 complete -c x.py -n "__fish_x.py_using_subcommand clippy" -l color -d 'whether to use color in cargo and rustc output' -r -f -a "{always\t'',never\t'',auto\t''}"
-complete -c x.py -n "__fish_x.py_using_subcommand clippy" -l llvm-skip-rebuild -d 'whether rebuilding llvm should be skipped, overriding `skip-rebuld` in config.toml' -r -f -a "{true\t'',false\t''}"
 complete -c x.py -n "__fish_x.py_using_subcommand clippy" -l rust-profile-generate -d 'generate PGO profile with rustc build' -r -F
 complete -c x.py -n "__fish_x.py_using_subcommand clippy" -l rust-profile-use -d 'use PGO profile for rustc build' -r -F
 complete -c x.py -n "__fish_x.py_using_subcommand clippy" -l llvm-profile-use -d 'use PGO profile for LLVM build' -r -F
@@ -202,7 +198,6 @@ complete -c x.py -n "__fish_x.py_using_subcommand fix" -s j -l jobs -d 'number o
 complete -c x.py -n "__fish_x.py_using_subcommand fix" -l warnings -d 'if value is deny, will deny warnings if value is warn, will emit warnings otherwise, use the default configured behaviour' -r -f -a "{deny\t'',warn\t'',default\t''}"
 complete -c x.py -n "__fish_x.py_using_subcommand fix" -l error-format -d 'rustc error format' -r -f
 complete -c x.py -n "__fish_x.py_using_subcommand fix" -l color -d 'whether to use color in cargo and rustc output' -r -f -a "{always\t'',never\t'',auto\t''}"
-complete -c x.py -n "__fish_x.py_using_subcommand fix" -l llvm-skip-rebuild -d 'whether rebuilding llvm should be skipped, overriding `skip-rebuld` in config.toml' -r -f -a "{true\t'',false\t''}"
 complete -c x.py -n "__fish_x.py_using_subcommand fix" -l rust-profile-generate -d 'generate PGO profile with rustc build' -r -F
 complete -c x.py -n "__fish_x.py_using_subcommand fix" -l rust-profile-use -d 'use PGO profile for rustc build' -r -F
 complete -c x.py -n "__fish_x.py_using_subcommand fix" -l llvm-profile-use -d 'use PGO profile for LLVM build' -r -F
@@ -236,7 +231,6 @@ complete -c x.py -n "__fish_x.py_using_subcommand fmt" -s j -l jobs -d 'number o
 complete -c x.py -n "__fish_x.py_using_subcommand fmt" -l warnings -d 'if value is deny, will deny warnings if value is warn, will emit warnings otherwise, use the default configured behaviour' -r -f -a "{deny\t'',warn\t'',default\t''}"
 complete -c x.py -n "__fish_x.py_using_subcommand fmt" -l error-format -d 'rustc error format' -r -f
 complete -c x.py -n "__fish_x.py_using_subcommand fmt" -l color -d 'whether to use color in cargo and rustc output' -r -f -a "{always\t'',never\t'',auto\t''}"
-complete -c x.py -n "__fish_x.py_using_subcommand fmt" -l llvm-skip-rebuild -d 'whether rebuilding llvm should be skipped, overriding `skip-rebuld` in config.toml' -r -f -a "{true\t'',false\t''}"
 complete -c x.py -n "__fish_x.py_using_subcommand fmt" -l rust-profile-generate -d 'generate PGO profile with rustc build' -r -F
 complete -c x.py -n "__fish_x.py_using_subcommand fmt" -l rust-profile-use -d 'use PGO profile for rustc build' -r -F
 complete -c x.py -n "__fish_x.py_using_subcommand fmt" -l llvm-profile-use -d 'use PGO profile for LLVM build' -r -F
@@ -272,7 +266,6 @@ complete -c x.py -n "__fish_x.py_using_subcommand doc" -s j -l jobs -d 'number o
 complete -c x.py -n "__fish_x.py_using_subcommand doc" -l warnings -d 'if value is deny, will deny warnings if value is warn, will emit warnings otherwise, use the default configured behaviour' -r -f -a "{deny\t'',warn\t'',default\t''}"
 complete -c x.py -n "__fish_x.py_using_subcommand doc" -l error-format -d 'rustc error format' -r -f
 complete -c x.py -n "__fish_x.py_using_subcommand doc" -l color -d 'whether to use color in cargo and rustc output' -r -f -a "{always\t'',never\t'',auto\t''}"
-complete -c x.py -n "__fish_x.py_using_subcommand doc" -l llvm-skip-rebuild -d 'whether rebuilding llvm should be skipped, overriding `skip-rebuld` in config.toml' -r -f -a "{true\t'',false\t''}"
 complete -c x.py -n "__fish_x.py_using_subcommand doc" -l rust-profile-generate -d 'generate PGO profile with rustc build' -r -F
 complete -c x.py -n "__fish_x.py_using_subcommand doc" -l rust-profile-use -d 'use PGO profile for rustc build' -r -F
 complete -c x.py -n "__fish_x.py_using_subcommand doc" -l llvm-profile-use -d 'use PGO profile for LLVM build' -r -F
@@ -314,7 +307,6 @@ complete -c x.py -n "__fish_x.py_using_subcommand test" -s j -l jobs -d 'number
 complete -c x.py -n "__fish_x.py_using_subcommand test" -l warnings -d 'if value is deny, will deny warnings if value is warn, will emit warnings otherwise, use the default configured behaviour' -r -f -a "{deny\t'',warn\t'',default\t''}"
 complete -c x.py -n "__fish_x.py_using_subcommand test" -l error-format -d 'rustc error format' -r -f
 complete -c x.py -n "__fish_x.py_using_subcommand test" -l color -d 'whether to use color in cargo and rustc output' -r -f -a "{always\t'',never\t'',auto\t''}"
-complete -c x.py -n "__fish_x.py_using_subcommand test" -l llvm-skip-rebuild -d 'whether rebuilding llvm should be skipped, overriding `skip-rebuld` in config.toml' -r -f -a "{true\t'',false\t''}"
 complete -c x.py -n "__fish_x.py_using_subcommand test" -l rust-profile-generate -d 'generate PGO profile with rustc build' -r -F
 complete -c x.py -n "__fish_x.py_using_subcommand test" -l rust-profile-use -d 'use PGO profile for rustc build' -r -F
 complete -c x.py -n "__fish_x.py_using_subcommand test" -l llvm-profile-use -d 'use PGO profile for LLVM build' -r -F
@@ -356,7 +348,6 @@ complete -c x.py -n "__fish_x.py_using_subcommand miri" -s j -l jobs -d 'number
 complete -c x.py -n "__fish_x.py_using_subcommand miri" -l warnings -d 'if value is deny, will deny warnings if value is warn, will emit warnings otherwise, use the default configured behaviour' -r -f -a "{deny\t'',warn\t'',default\t''}"
 complete -c x.py -n "__fish_x.py_using_subcommand miri" -l error-format -d 'rustc error format' -r -f
 complete -c x.py -n "__fish_x.py_using_subcommand miri" -l color -d 'whether to use color in cargo and rustc output' -r -f -a "{always\t'',never\t'',auto\t''}"
-complete -c x.py -n "__fish_x.py_using_subcommand miri" -l llvm-skip-rebuild -d 'whether rebuilding llvm should be skipped, overriding `skip-rebuld` in config.toml' -r -f -a "{true\t'',false\t''}"
 complete -c x.py -n "__fish_x.py_using_subcommand miri" -l rust-profile-generate -d 'generate PGO profile with rustc build' -r -F
 complete -c x.py -n "__fish_x.py_using_subcommand miri" -l rust-profile-use -d 'use PGO profile for rustc build' -r -F
 complete -c x.py -n "__fish_x.py_using_subcommand miri" -l llvm-profile-use -d 'use PGO profile for LLVM build' -r -F
@@ -394,7 +385,6 @@ complete -c x.py -n "__fish_x.py_using_subcommand bench" -s j -l jobs -d 'number
 complete -c x.py -n "__fish_x.py_using_subcommand bench" -l warnings -d 'if value is deny, will deny warnings if value is warn, will emit warnings otherwise, use the default configured behaviour' -r -f -a "{deny\t'',warn\t'',default\t''}"
 complete -c x.py -n "__fish_x.py_using_subcommand bench" -l error-format -d 'rustc error format' -r -f
 complete -c x.py -n "__fish_x.py_using_subcommand bench" -l color -d 'whether to use color in cargo and rustc output' -r -f -a "{always\t'',never\t'',auto\t''}"
-complete -c x.py -n "__fish_x.py_using_subcommand bench" -l llvm-skip-rebuild -d 'whether rebuilding llvm should be skipped, overriding `skip-rebuld` in config.toml' -r -f -a "{true\t'',false\t''}"
 complete -c x.py -n "__fish_x.py_using_subcommand bench" -l rust-profile-generate -d 'generate PGO profile with rustc build' -r -F
 complete -c x.py -n "__fish_x.py_using_subcommand bench" -l rust-profile-use -d 'use PGO profile for rustc build' -r -F
 complete -c x.py -n "__fish_x.py_using_subcommand bench" -l llvm-profile-use -d 'use PGO profile for LLVM build' -r -F
@@ -428,7 +418,6 @@ complete -c x.py -n "__fish_x.py_using_subcommand clean" -s j -l jobs -d 'number
 complete -c x.py -n "__fish_x.py_using_subcommand clean" -l warnings -d 'if value is deny, will deny warnings if value is warn, will emit warnings otherwise, use the default configured behaviour' -r -f -a "{deny\t'',warn\t'',default\t''}"
 complete -c x.py -n "__fish_x.py_using_subcommand clean" -l error-format -d 'rustc error format' -r -f
 complete -c x.py -n "__fish_x.py_using_subcommand clean" -l color -d 'whether to use color in cargo and rustc output' -r -f -a "{always\t'',never\t'',auto\t''}"
-complete -c x.py -n "__fish_x.py_using_subcommand clean" -l llvm-skip-rebuild -d 'whether rebuilding llvm should be skipped, overriding `skip-rebuld` in config.toml' -r -f -a "{true\t'',false\t''}"
 complete -c x.py -n "__fish_x.py_using_subcommand clean" -l rust-profile-generate -d 'generate PGO profile with rustc build' -r -F
 complete -c x.py -n "__fish_x.py_using_subcommand clean" -l rust-profile-use -d 'use PGO profile for rustc build' -r -F
 complete -c x.py -n "__fish_x.py_using_subcommand clean" -l llvm-profile-use -d 'use PGO profile for LLVM build' -r -F
@@ -463,7 +452,6 @@ complete -c x.py -n "__fish_x.py_using_subcommand dist" -s j -l jobs -d 'number
 complete -c x.py -n "__fish_x.py_using_subcommand dist" -l warnings -d 'if value is deny, will deny warnings if value is warn, will emit warnings otherwise, use the default configured behaviour' -r -f -a "{deny\t'',warn\t'',default\t''}"
 complete -c x.py -n "__fish_x.py_using_subcommand dist" -l error-format -d 'rustc error format' -r -f
 complete -c x.py -n "__fish_x.py_using_subcommand dist" -l color -d 'whether to use color in cargo and rustc output' -r -f -a "{always\t'',never\t'',auto\t''}"
-complete -c x.py -n "__fish_x.py_using_subcommand dist" -l llvm-skip-rebuild -d 'whether rebuilding llvm should be skipped, overriding `skip-rebuld` in config.toml' -r -f -a "{true\t'',false\t''}"
 complete -c x.py -n "__fish_x.py_using_subcommand dist" -l rust-profile-generate -d 'generate PGO profile with rustc build' -r -F
 complete -c x.py -n "__fish_x.py_using_subcommand dist" -l rust-profile-use -d 'use PGO profile for rustc build' -r -F
 complete -c x.py -n "__fish_x.py_using_subcommand dist" -l llvm-profile-use -d 'use PGO profile for LLVM build' -r -F
@@ -497,7 +485,6 @@ complete -c x.py -n "__fish_x.py_using_subcommand install" -s j -l jobs -d 'numb
 complete -c x.py -n "__fish_x.py_using_subcommand install" -l warnings -d 'if value is deny, will deny warnings if value is warn, will emit warnings otherwise, use the default configured behaviour' -r -f -a "{deny\t'',warn\t'',default\t''}"
 complete -c x.py -n "__fish_x.py_using_subcommand install" -l error-format -d 'rustc error format' -r -f
 complete -c x.py -n "__fish_x.py_using_subcommand install" -l color -d 'whether to use color in cargo and rustc output' -r -f -a "{always\t'',never\t'',auto\t''}"
-complete -c x.py -n "__fish_x.py_using_subcommand install" -l llvm-skip-rebuild -d 'whether rebuilding llvm should be skipped, overriding `skip-rebuld` in config.toml' -r -f -a "{true\t'',false\t''}"
 complete -c x.py -n "__fish_x.py_using_subcommand install" -l rust-profile-generate -d 'generate PGO profile with rustc build' -r -F
 complete -c x.py -n "__fish_x.py_using_subcommand install" -l rust-profile-use -d 'use PGO profile for rustc build' -r -F
 complete -c x.py -n "__fish_x.py_using_subcommand install" -l llvm-profile-use -d 'use PGO profile for LLVM build' -r -F
@@ -532,7 +519,6 @@ complete -c x.py -n "__fish_x.py_using_subcommand run" -s j -l jobs -d 'number o
 complete -c x.py -n "__fish_x.py_using_subcommand run" -l warnings -d 'if value is deny, will deny warnings if value is warn, will emit warnings otherwise, use the default configured behaviour' -r -f -a "{deny\t'',warn\t'',default\t''}"
 complete -c x.py -n "__fish_x.py_using_subcommand run" -l error-format -d 'rustc error format' -r -f
 complete -c x.py -n "__fish_x.py_using_subcommand run" -l color -d 'whether to use color in cargo and rustc output' -r -f -a "{always\t'',never\t'',auto\t''}"
-complete -c x.py -n "__fish_x.py_using_subcommand run" -l llvm-skip-rebuild -d 'whether rebuilding llvm should be skipped, overriding `skip-rebuld` in config.toml' -r -f -a "{true\t'',false\t''}"
 complete -c x.py -n "__fish_x.py_using_subcommand run" -l rust-profile-generate -d 'generate PGO profile with rustc build' -r -F
 complete -c x.py -n "__fish_x.py_using_subcommand run" -l rust-profile-use -d 'use PGO profile for rustc build' -r -F
 complete -c x.py -n "__fish_x.py_using_subcommand run" -l llvm-profile-use -d 'use PGO profile for LLVM build' -r -F
@@ -566,7 +552,6 @@ complete -c x.py -n "__fish_x.py_using_subcommand setup" -s j -l jobs -d 'number
 complete -c x.py -n "__fish_x.py_using_subcommand setup" -l warnings -d 'if value is deny, will deny warnings if value is warn, will emit warnings otherwise, use the default configured behaviour' -r -f -a "{deny\t'',warn\t'',default\t''}"
 complete -c x.py -n "__fish_x.py_using_subcommand setup" -l error-format -d 'rustc error format' -r -f
 complete -c x.py -n "__fish_x.py_using_subcommand setup" -l color -d 'whether to use color in cargo and rustc output' -r -f -a "{always\t'',never\t'',auto\t''}"
-complete -c x.py -n "__fish_x.py_using_subcommand setup" -l llvm-skip-rebuild -d 'whether rebuilding llvm should be skipped, overriding `skip-rebuld` in config.toml' -r -f -a "{true\t'',false\t''}"
 complete -c x.py -n "__fish_x.py_using_subcommand setup" -l rust-profile-generate -d 'generate PGO profile with rustc build' -r -F
 complete -c x.py -n "__fish_x.py_using_subcommand setup" -l rust-profile-use -d 'use PGO profile for rustc build' -r -F
 complete -c x.py -n "__fish_x.py_using_subcommand setup" -l llvm-profile-use -d 'use PGO profile for LLVM build' -r -F
@@ -600,7 +585,6 @@ complete -c x.py -n "__fish_x.py_using_subcommand suggest" -s j -l jobs -d 'numb
 complete -c x.py -n "__fish_x.py_using_subcommand suggest" -l warnings -d 'if value is deny, will deny warnings if value is warn, will emit warnings otherwise, use the default configured behaviour' -r -f -a "{deny\t'',warn\t'',default\t''}"
 complete -c x.py -n "__fish_x.py_using_subcommand suggest" -l error-format -d 'rustc error format' -r -f
 complete -c x.py -n "__fish_x.py_using_subcommand suggest" -l color -d 'whether to use color in cargo and rustc output' -r -f -a "{always\t'',never\t'',auto\t''}"
-complete -c x.py -n "__fish_x.py_using_subcommand suggest" -l llvm-skip-rebuild -d 'whether rebuilding llvm should be skipped, overriding `skip-rebuld` in config.toml' -r -f -a "{true\t'',false\t''}"
 complete -c x.py -n "__fish_x.py_using_subcommand suggest" -l rust-profile-generate -d 'generate PGO profile with rustc build' -r -F
 complete -c x.py -n "__fish_x.py_using_subcommand suggest" -l rust-profile-use -d 'use PGO profile for rustc build' -r -F
 complete -c x.py -n "__fish_x.py_using_subcommand suggest" -l llvm-profile-use -d 'use PGO profile for LLVM build' -r -F
@@ -636,7 +620,6 @@ complete -c x.py -n "__fish_x.py_using_subcommand vendor" -s j -l jobs -d 'numbe
 complete -c x.py -n "__fish_x.py_using_subcommand vendor" -l warnings -d 'if value is deny, will deny warnings if value is warn, will emit warnings otherwise, use the default configured behaviour' -r -f -a "{deny\t'',warn\t'',default\t''}"
 complete -c x.py -n "__fish_x.py_using_subcommand vendor" -l error-format -d 'rustc error format' -r -f
 complete -c x.py -n "__fish_x.py_using_subcommand vendor" -l color -d 'whether to use color in cargo and rustc output' -r -f -a "{always\t'',never\t'',auto\t''}"
-complete -c x.py -n "__fish_x.py_using_subcommand vendor" -l llvm-skip-rebuild -d 'whether rebuilding llvm should be skipped, overriding `skip-rebuld` in config.toml' -r -f -a "{true\t'',false\t''}"
 complete -c x.py -n "__fish_x.py_using_subcommand vendor" -l rust-profile-generate -d 'generate PGO profile with rustc build' -r -F
 complete -c x.py -n "__fish_x.py_using_subcommand vendor" -l rust-profile-use -d 'use PGO profile for rustc build' -r -F
 complete -c x.py -n "__fish_x.py_using_subcommand vendor" -l llvm-profile-use -d 'use PGO profile for LLVM build' -r -F
@@ -671,7 +654,6 @@ complete -c x.py -n "__fish_x.py_using_subcommand perf" -s j -l jobs -d 'number
 complete -c x.py -n "__fish_x.py_using_subcommand perf" -l warnings -d 'if value is deny, will deny warnings if value is warn, will emit warnings otherwise, use the default configured behaviour' -r -f -a "{deny\t'',warn\t'',default\t''}"
 complete -c x.py -n "__fish_x.py_using_subcommand perf" -l error-format -d 'rustc error format' -r -f
 complete -c x.py -n "__fish_x.py_using_subcommand perf" -l color -d 'whether to use color in cargo and rustc output' -r -f -a "{always\t'',never\t'',auto\t''}"
-complete -c x.py -n "__fish_x.py_using_subcommand perf" -l llvm-skip-rebuild -d 'whether rebuilding llvm should be skipped, overriding `skip-rebuld` in config.toml' -r -f -a "{true\t'',false\t''}"
 complete -c x.py -n "__fish_x.py_using_subcommand perf" -l rust-profile-generate -d 'generate PGO profile with rustc build' -r -F
 complete -c x.py -n "__fish_x.py_using_subcommand perf" -l rust-profile-use -d 'use PGO profile for rustc build' -r -F
 complete -c x.py -n "__fish_x.py_using_subcommand perf" -l llvm-profile-use -d 'use PGO profile for LLVM build' -r -F
diff --git a/src/etc/completions/x.py.ps1 b/src/etc/completions/x.py.ps1
index 240de32451d..afbfb055abd 100644
--- a/src/etc/completions/x.py.ps1
+++ b/src/etc/completions/x.py.ps1
@@ -39,7 +39,6 @@ Register-ArgumentCompleter -Native -CommandName 'x.py' -ScriptBlock {
             [CompletionResult]::new('--warnings', '--warnings', [CompletionResultType]::ParameterName, 'if value is deny, will deny warnings if value is warn, will emit warnings otherwise, use the default configured behaviour')
             [CompletionResult]::new('--error-format', '--error-format', [CompletionResultType]::ParameterName, 'rustc error format')
             [CompletionResult]::new('--color', '--color', [CompletionResultType]::ParameterName, 'whether to use color in cargo and rustc output')
-            [CompletionResult]::new('--llvm-skip-rebuild', '--llvm-skip-rebuild', [CompletionResultType]::ParameterName, 'whether rebuilding llvm should be skipped, overriding `skip-rebuld` in config.toml')
             [CompletionResult]::new('--rust-profile-generate', '--rust-profile-generate', [CompletionResultType]::ParameterName, 'generate PGO profile with rustc build')
             [CompletionResult]::new('--rust-profile-use', '--rust-profile-use', [CompletionResultType]::ParameterName, 'use PGO profile for rustc build')
             [CompletionResult]::new('--llvm-profile-use', '--llvm-profile-use', [CompletionResultType]::ParameterName, 'use PGO profile for LLVM build')
@@ -97,7 +96,6 @@ Register-ArgumentCompleter -Native -CommandName 'x.py' -ScriptBlock {
             [CompletionResult]::new('--warnings', '--warnings', [CompletionResultType]::ParameterName, 'if value is deny, will deny warnings if value is warn, will emit warnings otherwise, use the default configured behaviour')
             [CompletionResult]::new('--error-format', '--error-format', [CompletionResultType]::ParameterName, 'rustc error format')
             [CompletionResult]::new('--color', '--color', [CompletionResultType]::ParameterName, 'whether to use color in cargo and rustc output')
-            [CompletionResult]::new('--llvm-skip-rebuild', '--llvm-skip-rebuild', [CompletionResultType]::ParameterName, 'whether rebuilding llvm should be skipped, overriding `skip-rebuld` in config.toml')
             [CompletionResult]::new('--rust-profile-generate', '--rust-profile-generate', [CompletionResultType]::ParameterName, 'generate PGO profile with rustc build')
             [CompletionResult]::new('--rust-profile-use', '--rust-profile-use', [CompletionResultType]::ParameterName, 'use PGO profile for rustc build')
             [CompletionResult]::new('--llvm-profile-use', '--llvm-profile-use', [CompletionResultType]::ParameterName, 'use PGO profile for LLVM build')
@@ -138,7 +136,6 @@ Register-ArgumentCompleter -Native -CommandName 'x.py' -ScriptBlock {
             [CompletionResult]::new('--warnings', '--warnings', [CompletionResultType]::ParameterName, 'if value is deny, will deny warnings if value is warn, will emit warnings otherwise, use the default configured behaviour')
             [CompletionResult]::new('--error-format', '--error-format', [CompletionResultType]::ParameterName, 'rustc error format')
             [CompletionResult]::new('--color', '--color', [CompletionResultType]::ParameterName, 'whether to use color in cargo and rustc output')
-            [CompletionResult]::new('--llvm-skip-rebuild', '--llvm-skip-rebuild', [CompletionResultType]::ParameterName, 'whether rebuilding llvm should be skipped, overriding `skip-rebuld` in config.toml')
             [CompletionResult]::new('--rust-profile-generate', '--rust-profile-generate', [CompletionResultType]::ParameterName, 'generate PGO profile with rustc build')
             [CompletionResult]::new('--rust-profile-use', '--rust-profile-use', [CompletionResultType]::ParameterName, 'use PGO profile for rustc build')
             [CompletionResult]::new('--llvm-profile-use', '--llvm-profile-use', [CompletionResultType]::ParameterName, 'use PGO profile for LLVM build')
@@ -184,7 +181,6 @@ Register-ArgumentCompleter -Native -CommandName 'x.py' -ScriptBlock {
             [CompletionResult]::new('--warnings', '--warnings', [CompletionResultType]::ParameterName, 'if value is deny, will deny warnings if value is warn, will emit warnings otherwise, use the default configured behaviour')
             [CompletionResult]::new('--error-format', '--error-format', [CompletionResultType]::ParameterName, 'rustc error format')
             [CompletionResult]::new('--color', '--color', [CompletionResultType]::ParameterName, 'whether to use color in cargo and rustc output')
-            [CompletionResult]::new('--llvm-skip-rebuild', '--llvm-skip-rebuild', [CompletionResultType]::ParameterName, 'whether rebuilding llvm should be skipped, overriding `skip-rebuld` in config.toml')
             [CompletionResult]::new('--rust-profile-generate', '--rust-profile-generate', [CompletionResultType]::ParameterName, 'generate PGO profile with rustc build')
             [CompletionResult]::new('--rust-profile-use', '--rust-profile-use', [CompletionResultType]::ParameterName, 'use PGO profile for rustc build')
             [CompletionResult]::new('--llvm-profile-use', '--llvm-profile-use', [CompletionResultType]::ParameterName, 'use PGO profile for LLVM build')
@@ -228,7 +224,6 @@ Register-ArgumentCompleter -Native -CommandName 'x.py' -ScriptBlock {
             [CompletionResult]::new('--warnings', '--warnings', [CompletionResultType]::ParameterName, 'if value is deny, will deny warnings if value is warn, will emit warnings otherwise, use the default configured behaviour')
             [CompletionResult]::new('--error-format', '--error-format', [CompletionResultType]::ParameterName, 'rustc error format')
             [CompletionResult]::new('--color', '--color', [CompletionResultType]::ParameterName, 'whether to use color in cargo and rustc output')
-            [CompletionResult]::new('--llvm-skip-rebuild', '--llvm-skip-rebuild', [CompletionResultType]::ParameterName, 'whether rebuilding llvm should be skipped, overriding `skip-rebuld` in config.toml')
             [CompletionResult]::new('--rust-profile-generate', '--rust-profile-generate', [CompletionResultType]::ParameterName, 'generate PGO profile with rustc build')
             [CompletionResult]::new('--rust-profile-use', '--rust-profile-use', [CompletionResultType]::ParameterName, 'use PGO profile for rustc build')
             [CompletionResult]::new('--llvm-profile-use', '--llvm-profile-use', [CompletionResultType]::ParameterName, 'use PGO profile for LLVM build')
@@ -269,7 +264,6 @@ Register-ArgumentCompleter -Native -CommandName 'x.py' -ScriptBlock {
             [CompletionResult]::new('--warnings', '--warnings', [CompletionResultType]::ParameterName, 'if value is deny, will deny warnings if value is warn, will emit warnings otherwise, use the default configured behaviour')
             [CompletionResult]::new('--error-format', '--error-format', [CompletionResultType]::ParameterName, 'rustc error format')
             [CompletionResult]::new('--color', '--color', [CompletionResultType]::ParameterName, 'whether to use color in cargo and rustc output')
-            [CompletionResult]::new('--llvm-skip-rebuild', '--llvm-skip-rebuild', [CompletionResultType]::ParameterName, 'whether rebuilding llvm should be skipped, overriding `skip-rebuld` in config.toml')
             [CompletionResult]::new('--rust-profile-generate', '--rust-profile-generate', [CompletionResultType]::ParameterName, 'generate PGO profile with rustc build')
             [CompletionResult]::new('--rust-profile-use', '--rust-profile-use', [CompletionResultType]::ParameterName, 'use PGO profile for rustc build')
             [CompletionResult]::new('--llvm-profile-use', '--llvm-profile-use', [CompletionResultType]::ParameterName, 'use PGO profile for LLVM build')
@@ -312,7 +306,6 @@ Register-ArgumentCompleter -Native -CommandName 'x.py' -ScriptBlock {
             [CompletionResult]::new('--warnings', '--warnings', [CompletionResultType]::ParameterName, 'if value is deny, will deny warnings if value is warn, will emit warnings otherwise, use the default configured behaviour')
             [CompletionResult]::new('--error-format', '--error-format', [CompletionResultType]::ParameterName, 'rustc error format')
             [CompletionResult]::new('--color', '--color', [CompletionResultType]::ParameterName, 'whether to use color in cargo and rustc output')
-            [CompletionResult]::new('--llvm-skip-rebuild', '--llvm-skip-rebuild', [CompletionResultType]::ParameterName, 'whether rebuilding llvm should be skipped, overriding `skip-rebuld` in config.toml')
             [CompletionResult]::new('--rust-profile-generate', '--rust-profile-generate', [CompletionResultType]::ParameterName, 'generate PGO profile with rustc build')
             [CompletionResult]::new('--rust-profile-use', '--rust-profile-use', [CompletionResultType]::ParameterName, 'use PGO profile for rustc build')
             [CompletionResult]::new('--llvm-profile-use', '--llvm-profile-use', [CompletionResultType]::ParameterName, 'use PGO profile for LLVM build')
@@ -361,7 +354,6 @@ Register-ArgumentCompleter -Native -CommandName 'x.py' -ScriptBlock {
             [CompletionResult]::new('--warnings', '--warnings', [CompletionResultType]::ParameterName, 'if value is deny, will deny warnings if value is warn, will emit warnings otherwise, use the default configured behaviour')
             [CompletionResult]::new('--error-format', '--error-format', [CompletionResultType]::ParameterName, 'rustc error format')
             [CompletionResult]::new('--color', '--color', [CompletionResultType]::ParameterName, 'whether to use color in cargo and rustc output')
-            [CompletionResult]::new('--llvm-skip-rebuild', '--llvm-skip-rebuild', [CompletionResultType]::ParameterName, 'whether rebuilding llvm should be skipped, overriding `skip-rebuld` in config.toml')
             [CompletionResult]::new('--rust-profile-generate', '--rust-profile-generate', [CompletionResultType]::ParameterName, 'generate PGO profile with rustc build')
             [CompletionResult]::new('--rust-profile-use', '--rust-profile-use', [CompletionResultType]::ParameterName, 'use PGO profile for rustc build')
             [CompletionResult]::new('--llvm-profile-use', '--llvm-profile-use', [CompletionResultType]::ParameterName, 'use PGO profile for LLVM build')
@@ -410,7 +402,6 @@ Register-ArgumentCompleter -Native -CommandName 'x.py' -ScriptBlock {
             [CompletionResult]::new('--warnings', '--warnings', [CompletionResultType]::ParameterName, 'if value is deny, will deny warnings if value is warn, will emit warnings otherwise, use the default configured behaviour')
             [CompletionResult]::new('--error-format', '--error-format', [CompletionResultType]::ParameterName, 'rustc error format')
             [CompletionResult]::new('--color', '--color', [CompletionResultType]::ParameterName, 'whether to use color in cargo and rustc output')
-            [CompletionResult]::new('--llvm-skip-rebuild', '--llvm-skip-rebuild', [CompletionResultType]::ParameterName, 'whether rebuilding llvm should be skipped, overriding `skip-rebuld` in config.toml')
             [CompletionResult]::new('--rust-profile-generate', '--rust-profile-generate', [CompletionResultType]::ParameterName, 'generate PGO profile with rustc build')
             [CompletionResult]::new('--rust-profile-use', '--rust-profile-use', [CompletionResultType]::ParameterName, 'use PGO profile for rustc build')
             [CompletionResult]::new('--llvm-profile-use', '--llvm-profile-use', [CompletionResultType]::ParameterName, 'use PGO profile for LLVM build')
@@ -455,7 +446,6 @@ Register-ArgumentCompleter -Native -CommandName 'x.py' -ScriptBlock {
             [CompletionResult]::new('--warnings', '--warnings', [CompletionResultType]::ParameterName, 'if value is deny, will deny warnings if value is warn, will emit warnings otherwise, use the default configured behaviour')
             [CompletionResult]::new('--error-format', '--error-format', [CompletionResultType]::ParameterName, 'rustc error format')
             [CompletionResult]::new('--color', '--color', [CompletionResultType]::ParameterName, 'whether to use color in cargo and rustc output')
-            [CompletionResult]::new('--llvm-skip-rebuild', '--llvm-skip-rebuild', [CompletionResultType]::ParameterName, 'whether rebuilding llvm should be skipped, overriding `skip-rebuld` in config.toml')
             [CompletionResult]::new('--rust-profile-generate', '--rust-profile-generate', [CompletionResultType]::ParameterName, 'generate PGO profile with rustc build')
             [CompletionResult]::new('--rust-profile-use', '--rust-profile-use', [CompletionResultType]::ParameterName, 'use PGO profile for rustc build')
             [CompletionResult]::new('--llvm-profile-use', '--llvm-profile-use', [CompletionResultType]::ParameterName, 'use PGO profile for LLVM build')
@@ -496,7 +486,6 @@ Register-ArgumentCompleter -Native -CommandName 'x.py' -ScriptBlock {
             [CompletionResult]::new('--warnings', '--warnings', [CompletionResultType]::ParameterName, 'if value is deny, will deny warnings if value is warn, will emit warnings otherwise, use the default configured behaviour')
             [CompletionResult]::new('--error-format', '--error-format', [CompletionResultType]::ParameterName, 'rustc error format')
             [CompletionResult]::new('--color', '--color', [CompletionResultType]::ParameterName, 'whether to use color in cargo and rustc output')
-            [CompletionResult]::new('--llvm-skip-rebuild', '--llvm-skip-rebuild', [CompletionResultType]::ParameterName, 'whether rebuilding llvm should be skipped, overriding `skip-rebuld` in config.toml')
             [CompletionResult]::new('--rust-profile-generate', '--rust-profile-generate', [CompletionResultType]::ParameterName, 'generate PGO profile with rustc build')
             [CompletionResult]::new('--rust-profile-use', '--rust-profile-use', [CompletionResultType]::ParameterName, 'use PGO profile for rustc build')
             [CompletionResult]::new('--llvm-profile-use', '--llvm-profile-use', [CompletionResultType]::ParameterName, 'use PGO profile for LLVM build')
@@ -538,7 +527,6 @@ Register-ArgumentCompleter -Native -CommandName 'x.py' -ScriptBlock {
             [CompletionResult]::new('--warnings', '--warnings', [CompletionResultType]::ParameterName, 'if value is deny, will deny warnings if value is warn, will emit warnings otherwise, use the default configured behaviour')
             [CompletionResult]::new('--error-format', '--error-format', [CompletionResultType]::ParameterName, 'rustc error format')
             [CompletionResult]::new('--color', '--color', [CompletionResultType]::ParameterName, 'whether to use color in cargo and rustc output')
-            [CompletionResult]::new('--llvm-skip-rebuild', '--llvm-skip-rebuild', [CompletionResultType]::ParameterName, 'whether rebuilding llvm should be skipped, overriding `skip-rebuld` in config.toml')
             [CompletionResult]::new('--rust-profile-generate', '--rust-profile-generate', [CompletionResultType]::ParameterName, 'generate PGO profile with rustc build')
             [CompletionResult]::new('--rust-profile-use', '--rust-profile-use', [CompletionResultType]::ParameterName, 'use PGO profile for rustc build')
             [CompletionResult]::new('--llvm-profile-use', '--llvm-profile-use', [CompletionResultType]::ParameterName, 'use PGO profile for LLVM build')
@@ -579,7 +567,6 @@ Register-ArgumentCompleter -Native -CommandName 'x.py' -ScriptBlock {
             [CompletionResult]::new('--warnings', '--warnings', [CompletionResultType]::ParameterName, 'if value is deny, will deny warnings if value is warn, will emit warnings otherwise, use the default configured behaviour')
             [CompletionResult]::new('--error-format', '--error-format', [CompletionResultType]::ParameterName, 'rustc error format')
             [CompletionResult]::new('--color', '--color', [CompletionResultType]::ParameterName, 'whether to use color in cargo and rustc output')
-            [CompletionResult]::new('--llvm-skip-rebuild', '--llvm-skip-rebuild', [CompletionResultType]::ParameterName, 'whether rebuilding llvm should be skipped, overriding `skip-rebuld` in config.toml')
             [CompletionResult]::new('--rust-profile-generate', '--rust-profile-generate', [CompletionResultType]::ParameterName, 'generate PGO profile with rustc build')
             [CompletionResult]::new('--rust-profile-use', '--rust-profile-use', [CompletionResultType]::ParameterName, 'use PGO profile for rustc build')
             [CompletionResult]::new('--llvm-profile-use', '--llvm-profile-use', [CompletionResultType]::ParameterName, 'use PGO profile for LLVM build')
@@ -621,7 +608,6 @@ Register-ArgumentCompleter -Native -CommandName 'x.py' -ScriptBlock {
             [CompletionResult]::new('--warnings', '--warnings', [CompletionResultType]::ParameterName, 'if value is deny, will deny warnings if value is warn, will emit warnings otherwise, use the default configured behaviour')
             [CompletionResult]::new('--error-format', '--error-format', [CompletionResultType]::ParameterName, 'rustc error format')
             [CompletionResult]::new('--color', '--color', [CompletionResultType]::ParameterName, 'whether to use color in cargo and rustc output')
-            [CompletionResult]::new('--llvm-skip-rebuild', '--llvm-skip-rebuild', [CompletionResultType]::ParameterName, 'whether rebuilding llvm should be skipped, overriding `skip-rebuld` in config.toml')
             [CompletionResult]::new('--rust-profile-generate', '--rust-profile-generate', [CompletionResultType]::ParameterName, 'generate PGO profile with rustc build')
             [CompletionResult]::new('--rust-profile-use', '--rust-profile-use', [CompletionResultType]::ParameterName, 'use PGO profile for rustc build')
             [CompletionResult]::new('--llvm-profile-use', '--llvm-profile-use', [CompletionResultType]::ParameterName, 'use PGO profile for LLVM build')
@@ -662,7 +648,6 @@ Register-ArgumentCompleter -Native -CommandName 'x.py' -ScriptBlock {
             [CompletionResult]::new('--warnings', '--warnings', [CompletionResultType]::ParameterName, 'if value is deny, will deny warnings if value is warn, will emit warnings otherwise, use the default configured behaviour')
             [CompletionResult]::new('--error-format', '--error-format', [CompletionResultType]::ParameterName, 'rustc error format')
             [CompletionResult]::new('--color', '--color', [CompletionResultType]::ParameterName, 'whether to use color in cargo and rustc output')
-            [CompletionResult]::new('--llvm-skip-rebuild', '--llvm-skip-rebuild', [CompletionResultType]::ParameterName, 'whether rebuilding llvm should be skipped, overriding `skip-rebuld` in config.toml')
             [CompletionResult]::new('--rust-profile-generate', '--rust-profile-generate', [CompletionResultType]::ParameterName, 'generate PGO profile with rustc build')
             [CompletionResult]::new('--rust-profile-use', '--rust-profile-use', [CompletionResultType]::ParameterName, 'use PGO profile for rustc build')
             [CompletionResult]::new('--llvm-profile-use', '--llvm-profile-use', [CompletionResultType]::ParameterName, 'use PGO profile for LLVM build')
@@ -703,7 +688,6 @@ Register-ArgumentCompleter -Native -CommandName 'x.py' -ScriptBlock {
             [CompletionResult]::new('--warnings', '--warnings', [CompletionResultType]::ParameterName, 'if value is deny, will deny warnings if value is warn, will emit warnings otherwise, use the default configured behaviour')
             [CompletionResult]::new('--error-format', '--error-format', [CompletionResultType]::ParameterName, 'rustc error format')
             [CompletionResult]::new('--color', '--color', [CompletionResultType]::ParameterName, 'whether to use color in cargo and rustc output')
-            [CompletionResult]::new('--llvm-skip-rebuild', '--llvm-skip-rebuild', [CompletionResultType]::ParameterName, 'whether rebuilding llvm should be skipped, overriding `skip-rebuld` in config.toml')
             [CompletionResult]::new('--rust-profile-generate', '--rust-profile-generate', [CompletionResultType]::ParameterName, 'generate PGO profile with rustc build')
             [CompletionResult]::new('--rust-profile-use', '--rust-profile-use', [CompletionResultType]::ParameterName, 'use PGO profile for rustc build')
             [CompletionResult]::new('--llvm-profile-use', '--llvm-profile-use', [CompletionResultType]::ParameterName, 'use PGO profile for LLVM build')
@@ -746,7 +730,6 @@ Register-ArgumentCompleter -Native -CommandName 'x.py' -ScriptBlock {
             [CompletionResult]::new('--warnings', '--warnings', [CompletionResultType]::ParameterName, 'if value is deny, will deny warnings if value is warn, will emit warnings otherwise, use the default configured behaviour')
             [CompletionResult]::new('--error-format', '--error-format', [CompletionResultType]::ParameterName, 'rustc error format')
             [CompletionResult]::new('--color', '--color', [CompletionResultType]::ParameterName, 'whether to use color in cargo and rustc output')
-            [CompletionResult]::new('--llvm-skip-rebuild', '--llvm-skip-rebuild', [CompletionResultType]::ParameterName, 'whether rebuilding llvm should be skipped, overriding `skip-rebuld` in config.toml')
             [CompletionResult]::new('--rust-profile-generate', '--rust-profile-generate', [CompletionResultType]::ParameterName, 'generate PGO profile with rustc build')
             [CompletionResult]::new('--rust-profile-use', '--rust-profile-use', [CompletionResultType]::ParameterName, 'use PGO profile for rustc build')
             [CompletionResult]::new('--llvm-profile-use', '--llvm-profile-use', [CompletionResultType]::ParameterName, 'use PGO profile for LLVM build')
@@ -788,7 +771,6 @@ Register-ArgumentCompleter -Native -CommandName 'x.py' -ScriptBlock {
             [CompletionResult]::new('--warnings', '--warnings', [CompletionResultType]::ParameterName, 'if value is deny, will deny warnings if value is warn, will emit warnings otherwise, use the default configured behaviour')
             [CompletionResult]::new('--error-format', '--error-format', [CompletionResultType]::ParameterName, 'rustc error format')
             [CompletionResult]::new('--color', '--color', [CompletionResultType]::ParameterName, 'whether to use color in cargo and rustc output')
-            [CompletionResult]::new('--llvm-skip-rebuild', '--llvm-skip-rebuild', [CompletionResultType]::ParameterName, 'whether rebuilding llvm should be skipped, overriding `skip-rebuld` in config.toml')
             [CompletionResult]::new('--rust-profile-generate', '--rust-profile-generate', [CompletionResultType]::ParameterName, 'generate PGO profile with rustc build')
             [CompletionResult]::new('--rust-profile-use', '--rust-profile-use', [CompletionResultType]::ParameterName, 'use PGO profile for rustc build')
             [CompletionResult]::new('--llvm-profile-use', '--llvm-profile-use', [CompletionResultType]::ParameterName, 'use PGO profile for LLVM build')
diff --git a/src/etc/completions/x.py.sh b/src/etc/completions/x.py.sh
index b1730e5c6d8..2aa0d9f69cc 100644
--- a/src/etc/completions/x.py.sh
+++ b/src/etc/completions/x.py.sh
@@ -70,7 +70,7 @@ _x.py() {
 
     case "${cmd}" in
         x.py)
-            opts="-v -i -j -h --verbose --incremental --config --build-dir --build --host --target --exclude --skip --include-default-paths --rustc-error-format --on-fail --dry-run --dump-bootstrap-shims --stage --keep-stage --keep-stage-std --src --jobs --warnings --error-format --json-output --color --bypass-bootstrap-lock --llvm-skip-rebuild --rust-profile-generate --rust-profile-use --llvm-profile-use --llvm-profile-generate --enable-bolt-settings --skip-stage0-validation --reproducible-artifact --set --help [PATHS]... [ARGS]... build check clippy fix fmt doc test miri bench clean dist install run setup suggest vendor perf"
+            opts="-v -i -j -h --verbose --incremental --config --build-dir --build --host --target --exclude --skip --include-default-paths --rustc-error-format --on-fail --dry-run --dump-bootstrap-shims --stage --keep-stage --keep-stage-std --src --jobs --warnings --error-format --json-output --color --bypass-bootstrap-lock --rust-profile-generate --rust-profile-use --llvm-profile-use --llvm-profile-generate --enable-bolt-settings --skip-stage0-validation --reproducible-artifact --set --help [PATHS]... [ARGS]... build check clippy fix fmt doc test miri bench clean dist install run setup suggest vendor perf"
             if [[ ${cur} == -* || ${COMP_CWORD} -eq 1 ]] ; then
                 COMPREPLY=( $(compgen -W "${opts}" -- "${cur}") )
                 return 0
@@ -195,10 +195,6 @@ _x.py() {
                     COMPREPLY=($(compgen -W "always never auto" -- "${cur}"))
                     return 0
                     ;;
-                --llvm-skip-rebuild)
-                    COMPREPLY=($(compgen -W "true false" -- "${cur}"))
-                    return 0
-                    ;;
                 --rust-profile-generate)
                     local oldifs
                     if [ -n "${IFS+x}" ]; then
@@ -263,7 +259,7 @@ _x.py() {
             return 0
             ;;
         x.py__bench)
-            opts="-v -i -j -h --test-args --verbose --incremental --config --build-dir --build --host --target --exclude --skip --include-default-paths --rustc-error-format --on-fail --dry-run --dump-bootstrap-shims --stage --keep-stage --keep-stage-std --src --jobs --warnings --error-format --json-output --color --bypass-bootstrap-lock --llvm-skip-rebuild --rust-profile-generate --rust-profile-use --llvm-profile-use --llvm-profile-generate --enable-bolt-settings --skip-stage0-validation --reproducible-artifact --set --help [PATHS]... [ARGS]..."
+            opts="-v -i -j -h --test-args --verbose --incremental --config --build-dir --build --host --target --exclude --skip --include-default-paths --rustc-error-format --on-fail --dry-run --dump-bootstrap-shims --stage --keep-stage --keep-stage-std --src --jobs --warnings --error-format --json-output --color --bypass-bootstrap-lock --rust-profile-generate --rust-profile-use --llvm-profile-use --llvm-profile-generate --enable-bolt-settings --skip-stage0-validation --reproducible-artifact --set --help [PATHS]... [ARGS]..."
             if [[ ${cur} == -* || ${COMP_CWORD} -eq 2 ]] ; then
                 COMPREPLY=( $(compgen -W "${opts}" -- "${cur}") )
                 return 0
@@ -392,10 +388,6 @@ _x.py() {
                     COMPREPLY=($(compgen -W "always never auto" -- "${cur}"))
                     return 0
                     ;;
-                --llvm-skip-rebuild)
-                    COMPREPLY=($(compgen -W "true false" -- "${cur}"))
-                    return 0
-                    ;;
                 --rust-profile-generate)
                     local oldifs
                     if [ -n "${IFS+x}" ]; then
@@ -460,7 +452,7 @@ _x.py() {
             return 0
             ;;
         x.py__build)
-            opts="-v -i -j -h --verbose --incremental --config --build-dir --build --host --target --exclude --skip --include-default-paths --rustc-error-format --on-fail --dry-run --dump-bootstrap-shims --stage --keep-stage --keep-stage-std --src --jobs --warnings --error-format --json-output --color --bypass-bootstrap-lock --llvm-skip-rebuild --rust-profile-generate --rust-profile-use --llvm-profile-use --llvm-profile-generate --enable-bolt-settings --skip-stage0-validation --reproducible-artifact --set --help [PATHS]... [ARGS]..."
+            opts="-v -i -j -h --verbose --incremental --config --build-dir --build --host --target --exclude --skip --include-default-paths --rustc-error-format --on-fail --dry-run --dump-bootstrap-shims --stage --keep-stage --keep-stage-std --src --jobs --warnings --error-format --json-output --color --bypass-bootstrap-lock --rust-profile-generate --rust-profile-use --llvm-profile-use --llvm-profile-generate --enable-bolt-settings --skip-stage0-validation --reproducible-artifact --set --help [PATHS]... [ARGS]..."
             if [[ ${cur} == -* || ${COMP_CWORD} -eq 2 ]] ; then
                 COMPREPLY=( $(compgen -W "${opts}" -- "${cur}") )
                 return 0
@@ -585,10 +577,6 @@ _x.py() {
                     COMPREPLY=($(compgen -W "always never auto" -- "${cur}"))
                     return 0
                     ;;
-                --llvm-skip-rebuild)
-                    COMPREPLY=($(compgen -W "true false" -- "${cur}"))
-                    return 0
-                    ;;
                 --rust-profile-generate)
                     local oldifs
                     if [ -n "${IFS+x}" ]; then
@@ -653,7 +641,7 @@ _x.py() {
             return 0
             ;;
         x.py__check)
-            opts="-v -i -j -h --all-targets --verbose --incremental --config --build-dir --build --host --target --exclude --skip --include-default-paths --rustc-error-format --on-fail --dry-run --dump-bootstrap-shims --stage --keep-stage --keep-stage-std --src --jobs --warnings --error-format --json-output --color --bypass-bootstrap-lock --llvm-skip-rebuild --rust-profile-generate --rust-profile-use --llvm-profile-use --llvm-profile-generate --enable-bolt-settings --skip-stage0-validation --reproducible-artifact --set --help [PATHS]... [ARGS]..."
+            opts="-v -i -j -h --all-targets --verbose --incremental --config --build-dir --build --host --target --exclude --skip --include-default-paths --rustc-error-format --on-fail --dry-run --dump-bootstrap-shims --stage --keep-stage --keep-stage-std --src --jobs --warnings --error-format --json-output --color --bypass-bootstrap-lock --rust-profile-generate --rust-profile-use --llvm-profile-use --llvm-profile-generate --enable-bolt-settings --skip-stage0-validation --reproducible-artifact --set --help [PATHS]... [ARGS]..."
             if [[ ${cur} == -* || ${COMP_CWORD} -eq 2 ]] ; then
                 COMPREPLY=( $(compgen -W "${opts}" -- "${cur}") )
                 return 0
@@ -778,10 +766,6 @@ _x.py() {
                     COMPREPLY=($(compgen -W "always never auto" -- "${cur}"))
                     return 0
                     ;;
-                --llvm-skip-rebuild)
-                    COMPREPLY=($(compgen -W "true false" -- "${cur}"))
-                    return 0
-                    ;;
                 --rust-profile-generate)
                     local oldifs
                     if [ -n "${IFS+x}" ]; then
@@ -846,7 +830,7 @@ _x.py() {
             return 0
             ;;
         x.py__clean)
-            opts="-v -i -j -h --all --stage --verbose --incremental --config --build-dir --build --host --target --exclude --skip --include-default-paths --rustc-error-format --on-fail --dry-run --dump-bootstrap-shims --keep-stage --keep-stage-std --src --jobs --warnings --error-format --json-output --color --bypass-bootstrap-lock --llvm-skip-rebuild --rust-profile-generate --rust-profile-use --llvm-profile-use --llvm-profile-generate --enable-bolt-settings --skip-stage0-validation --reproducible-artifact --set --help [PATHS]... [ARGS]..."
+            opts="-v -i -j -h --all --stage --verbose --incremental --config --build-dir --build --host --target --exclude --skip --include-default-paths --rustc-error-format --on-fail --dry-run --dump-bootstrap-shims --keep-stage --keep-stage-std --src --jobs --warnings --error-format --json-output --color --bypass-bootstrap-lock --rust-profile-generate --rust-profile-use --llvm-profile-use --llvm-profile-generate --enable-bolt-settings --skip-stage0-validation --reproducible-artifact --set --help [PATHS]... [ARGS]..."
             if [[ ${cur} == -* || ${COMP_CWORD} -eq 2 ]] ; then
                 COMPREPLY=( $(compgen -W "${opts}" -- "${cur}") )
                 return 0
@@ -968,10 +952,6 @@ _x.py() {
                     COMPREPLY=($(compgen -W "always never auto" -- "${cur}"))
                     return 0
                     ;;
-                --llvm-skip-rebuild)
-                    COMPREPLY=($(compgen -W "true false" -- "${cur}"))
-                    return 0
-                    ;;
                 --rust-profile-generate)
                     local oldifs
                     if [ -n "${IFS+x}" ]; then
@@ -1036,7 +1016,7 @@ _x.py() {
             return 0
             ;;
         x.py__clippy)
-            opts="-A -D -W -F -v -i -j -h --fix --allow-dirty --allow-staged --verbose --incremental --config --build-dir --build --host --target --exclude --skip --include-default-paths --rustc-error-format --on-fail --dry-run --dump-bootstrap-shims --stage --keep-stage --keep-stage-std --src --jobs --warnings --error-format --json-output --color --bypass-bootstrap-lock --llvm-skip-rebuild --rust-profile-generate --rust-profile-use --llvm-profile-use --llvm-profile-generate --enable-bolt-settings --skip-stage0-validation --reproducible-artifact --set --help [PATHS]... [ARGS]..."
+            opts="-A -D -W -F -v -i -j -h --fix --allow-dirty --allow-staged --verbose --incremental --config --build-dir --build --host --target --exclude --skip --include-default-paths --rustc-error-format --on-fail --dry-run --dump-bootstrap-shims --stage --keep-stage --keep-stage-std --src --jobs --warnings --error-format --json-output --color --bypass-bootstrap-lock --rust-profile-generate --rust-profile-use --llvm-profile-use --llvm-profile-generate --enable-bolt-settings --skip-stage0-validation --reproducible-artifact --set --help [PATHS]... [ARGS]..."
             if [[ ${cur} == -* || ${COMP_CWORD} -eq 2 ]] ; then
                 COMPREPLY=( $(compgen -W "${opts}" -- "${cur}") )
                 return 0
@@ -1177,10 +1157,6 @@ _x.py() {
                     COMPREPLY=($(compgen -W "always never auto" -- "${cur}"))
                     return 0
                     ;;
-                --llvm-skip-rebuild)
-                    COMPREPLY=($(compgen -W "true false" -- "${cur}"))
-                    return 0
-                    ;;
                 --rust-profile-generate)
                     local oldifs
                     if [ -n "${IFS+x}" ]; then
@@ -1245,7 +1221,7 @@ _x.py() {
             return 0
             ;;
         x.py__dist)
-            opts="-v -i -j -h --verbose --incremental --config --build-dir --build --host --target --exclude --skip --include-default-paths --rustc-error-format --on-fail --dry-run --dump-bootstrap-shims --stage --keep-stage --keep-stage-std --src --jobs --warnings --error-format --json-output --color --bypass-bootstrap-lock --llvm-skip-rebuild --rust-profile-generate --rust-profile-use --llvm-profile-use --llvm-profile-generate --enable-bolt-settings --skip-stage0-validation --reproducible-artifact --set --help [PATHS]... [ARGS]..."
+            opts="-v -i -j -h --verbose --incremental --config --build-dir --build --host --target --exclude --skip --include-default-paths --rustc-error-format --on-fail --dry-run --dump-bootstrap-shims --stage --keep-stage --keep-stage-std --src --jobs --warnings --error-format --json-output --color --bypass-bootstrap-lock --rust-profile-generate --rust-profile-use --llvm-profile-use --llvm-profile-generate --enable-bolt-settings --skip-stage0-validation --reproducible-artifact --set --help [PATHS]... [ARGS]..."
             if [[ ${cur} == -* || ${COMP_CWORD} -eq 2 ]] ; then
                 COMPREPLY=( $(compgen -W "${opts}" -- "${cur}") )
                 return 0
@@ -1370,10 +1346,6 @@ _x.py() {
                     COMPREPLY=($(compgen -W "always never auto" -- "${cur}"))
                     return 0
                     ;;
-                --llvm-skip-rebuild)
-                    COMPREPLY=($(compgen -W "true false" -- "${cur}"))
-                    return 0
-                    ;;
                 --rust-profile-generate)
                     local oldifs
                     if [ -n "${IFS+x}" ]; then
@@ -1438,7 +1410,7 @@ _x.py() {
             return 0
             ;;
         x.py__doc)
-            opts="-v -i -j -h --open --json --verbose --incremental --config --build-dir --build --host --target --exclude --skip --include-default-paths --rustc-error-format --on-fail --dry-run --dump-bootstrap-shims --stage --keep-stage --keep-stage-std --src --jobs --warnings --error-format --json-output --color --bypass-bootstrap-lock --llvm-skip-rebuild --rust-profile-generate --rust-profile-use --llvm-profile-use --llvm-profile-generate --enable-bolt-settings --skip-stage0-validation --reproducible-artifact --set --help [PATHS]... [ARGS]..."
+            opts="-v -i -j -h --open --json --verbose --incremental --config --build-dir --build --host --target --exclude --skip --include-default-paths --rustc-error-format --on-fail --dry-run --dump-bootstrap-shims --stage --keep-stage --keep-stage-std --src --jobs --warnings --error-format --json-output --color --bypass-bootstrap-lock --rust-profile-generate --rust-profile-use --llvm-profile-use --llvm-profile-generate --enable-bolt-settings --skip-stage0-validation --reproducible-artifact --set --help [PATHS]... [ARGS]..."
             if [[ ${cur} == -* || ${COMP_CWORD} -eq 2 ]] ; then
                 COMPREPLY=( $(compgen -W "${opts}" -- "${cur}") )
                 return 0
@@ -1563,10 +1535,6 @@ _x.py() {
                     COMPREPLY=($(compgen -W "always never auto" -- "${cur}"))
                     return 0
                     ;;
-                --llvm-skip-rebuild)
-                    COMPREPLY=($(compgen -W "true false" -- "${cur}"))
-                    return 0
-                    ;;
                 --rust-profile-generate)
                     local oldifs
                     if [ -n "${IFS+x}" ]; then
@@ -1631,7 +1599,7 @@ _x.py() {
             return 0
             ;;
         x.py__fix)
-            opts="-v -i -j -h --verbose --incremental --config --build-dir --build --host --target --exclude --skip --include-default-paths --rustc-error-format --on-fail --dry-run --dump-bootstrap-shims --stage --keep-stage --keep-stage-std --src --jobs --warnings --error-format --json-output --color --bypass-bootstrap-lock --llvm-skip-rebuild --rust-profile-generate --rust-profile-use --llvm-profile-use --llvm-profile-generate --enable-bolt-settings --skip-stage0-validation --reproducible-artifact --set --help [PATHS]... [ARGS]..."
+            opts="-v -i -j -h --verbose --incremental --config --build-dir --build --host --target --exclude --skip --include-default-paths --rustc-error-format --on-fail --dry-run --dump-bootstrap-shims --stage --keep-stage --keep-stage-std --src --jobs --warnings --error-format --json-output --color --bypass-bootstrap-lock --rust-profile-generate --rust-profile-use --llvm-profile-use --llvm-profile-generate --enable-bolt-settings --skip-stage0-validation --reproducible-artifact --set --help [PATHS]... [ARGS]..."
             if [[ ${cur} == -* || ${COMP_CWORD} -eq 2 ]] ; then
                 COMPREPLY=( $(compgen -W "${opts}" -- "${cur}") )
                 return 0
@@ -1756,10 +1724,6 @@ _x.py() {
                     COMPREPLY=($(compgen -W "always never auto" -- "${cur}"))
                     return 0
                     ;;
-                --llvm-skip-rebuild)
-                    COMPREPLY=($(compgen -W "true false" -- "${cur}"))
-                    return 0
-                    ;;
                 --rust-profile-generate)
                     local oldifs
                     if [ -n "${IFS+x}" ]; then
@@ -1824,7 +1788,7 @@ _x.py() {
             return 0
             ;;
         x.py__fmt)
-            opts="-v -i -j -h --check --all --verbose --incremental --config --build-dir --build --host --target --exclude --skip --include-default-paths --rustc-error-format --on-fail --dry-run --dump-bootstrap-shims --stage --keep-stage --keep-stage-std --src --jobs --warnings --error-format --json-output --color --bypass-bootstrap-lock --llvm-skip-rebuild --rust-profile-generate --rust-profile-use --llvm-profile-use --llvm-profile-generate --enable-bolt-settings --skip-stage0-validation --reproducible-artifact --set --help [PATHS]... [ARGS]..."
+            opts="-v -i -j -h --check --all --verbose --incremental --config --build-dir --build --host --target --exclude --skip --include-default-paths --rustc-error-format --on-fail --dry-run --dump-bootstrap-shims --stage --keep-stage --keep-stage-std --src --jobs --warnings --error-format --json-output --color --bypass-bootstrap-lock --rust-profile-generate --rust-profile-use --llvm-profile-use --llvm-profile-generate --enable-bolt-settings --skip-stage0-validation --reproducible-artifact --set --help [PATHS]... [ARGS]..."
             if [[ ${cur} == -* || ${COMP_CWORD} -eq 2 ]] ; then
                 COMPREPLY=( $(compgen -W "${opts}" -- "${cur}") )
                 return 0
@@ -1949,10 +1913,6 @@ _x.py() {
                     COMPREPLY=($(compgen -W "always never auto" -- "${cur}"))
                     return 0
                     ;;
-                --llvm-skip-rebuild)
-                    COMPREPLY=($(compgen -W "true false" -- "${cur}"))
-                    return 0
-                    ;;
                 --rust-profile-generate)
                     local oldifs
                     if [ -n "${IFS+x}" ]; then
@@ -2017,7 +1977,7 @@ _x.py() {
             return 0
             ;;
         x.py__install)
-            opts="-v -i -j -h --verbose --incremental --config --build-dir --build --host --target --exclude --skip --include-default-paths --rustc-error-format --on-fail --dry-run --dump-bootstrap-shims --stage --keep-stage --keep-stage-std --src --jobs --warnings --error-format --json-output --color --bypass-bootstrap-lock --llvm-skip-rebuild --rust-profile-generate --rust-profile-use --llvm-profile-use --llvm-profile-generate --enable-bolt-settings --skip-stage0-validation --reproducible-artifact --set --help [PATHS]... [ARGS]..."
+            opts="-v -i -j -h --verbose --incremental --config --build-dir --build --host --target --exclude --skip --include-default-paths --rustc-error-format --on-fail --dry-run --dump-bootstrap-shims --stage --keep-stage --keep-stage-std --src --jobs --warnings --error-format --json-output --color --bypass-bootstrap-lock --rust-profile-generate --rust-profile-use --llvm-profile-use --llvm-profile-generate --enable-bolt-settings --skip-stage0-validation --reproducible-artifact --set --help [PATHS]... [ARGS]..."
             if [[ ${cur} == -* || ${COMP_CWORD} -eq 2 ]] ; then
                 COMPREPLY=( $(compgen -W "${opts}" -- "${cur}") )
                 return 0
@@ -2142,10 +2102,6 @@ _x.py() {
                     COMPREPLY=($(compgen -W "always never auto" -- "${cur}"))
                     return 0
                     ;;
-                --llvm-skip-rebuild)
-                    COMPREPLY=($(compgen -W "true false" -- "${cur}"))
-                    return 0
-                    ;;
                 --rust-profile-generate)
                     local oldifs
                     if [ -n "${IFS+x}" ]; then
@@ -2210,7 +2166,7 @@ _x.py() {
             return 0
             ;;
         x.py__miri)
-            opts="-v -i -j -h --no-fail-fast --test-args --no-doc --doc --verbose --incremental --config --build-dir --build --host --target --exclude --skip --include-default-paths --rustc-error-format --on-fail --dry-run --dump-bootstrap-shims --stage --keep-stage --keep-stage-std --src --jobs --warnings --error-format --json-output --color --bypass-bootstrap-lock --llvm-skip-rebuild --rust-profile-generate --rust-profile-use --llvm-profile-use --llvm-profile-generate --enable-bolt-settings --skip-stage0-validation --reproducible-artifact --set --help [PATHS]... [ARGS]..."
+            opts="-v -i -j -h --no-fail-fast --test-args --no-doc --doc --verbose --incremental --config --build-dir --build --host --target --exclude --skip --include-default-paths --rustc-error-format --on-fail --dry-run --dump-bootstrap-shims --stage --keep-stage --keep-stage-std --src --jobs --warnings --error-format --json-output --color --bypass-bootstrap-lock --rust-profile-generate --rust-profile-use --llvm-profile-use --llvm-profile-generate --enable-bolt-settings --skip-stage0-validation --reproducible-artifact --set --help [PATHS]... [ARGS]..."
             if [[ ${cur} == -* || ${COMP_CWORD} -eq 2 ]] ; then
                 COMPREPLY=( $(compgen -W "${opts}" -- "${cur}") )
                 return 0
@@ -2339,10 +2295,6 @@ _x.py() {
                     COMPREPLY=($(compgen -W "always never auto" -- "${cur}"))
                     return 0
                     ;;
-                --llvm-skip-rebuild)
-                    COMPREPLY=($(compgen -W "true false" -- "${cur}"))
-                    return 0
-                    ;;
                 --rust-profile-generate)
                     local oldifs
                     if [ -n "${IFS+x}" ]; then
@@ -2407,7 +2359,7 @@ _x.py() {
             return 0
             ;;
         x.py__perf)
-            opts="-v -i -j -h --verbose --incremental --config --build-dir --build --host --target --exclude --skip --include-default-paths --rustc-error-format --on-fail --dry-run --dump-bootstrap-shims --stage --keep-stage --keep-stage-std --src --jobs --warnings --error-format --json-output --color --bypass-bootstrap-lock --llvm-skip-rebuild --rust-profile-generate --rust-profile-use --llvm-profile-use --llvm-profile-generate --enable-bolt-settings --skip-stage0-validation --reproducible-artifact --set --help [PATHS]... [ARGS]..."
+            opts="-v -i -j -h --verbose --incremental --config --build-dir --build --host --target --exclude --skip --include-default-paths --rustc-error-format --on-fail --dry-run --dump-bootstrap-shims --stage --keep-stage --keep-stage-std --src --jobs --warnings --error-format --json-output --color --bypass-bootstrap-lock --rust-profile-generate --rust-profile-use --llvm-profile-use --llvm-profile-generate --enable-bolt-settings --skip-stage0-validation --reproducible-artifact --set --help [PATHS]... [ARGS]..."
             if [[ ${cur} == -* || ${COMP_CWORD} -eq 2 ]] ; then
                 COMPREPLY=( $(compgen -W "${opts}" -- "${cur}") )
                 return 0
@@ -2532,10 +2484,6 @@ _x.py() {
                     COMPREPLY=($(compgen -W "always never auto" -- "${cur}"))
                     return 0
                     ;;
-                --llvm-skip-rebuild)
-                    COMPREPLY=($(compgen -W "true false" -- "${cur}"))
-                    return 0
-                    ;;
                 --rust-profile-generate)
                     local oldifs
                     if [ -n "${IFS+x}" ]; then
@@ -2600,7 +2548,7 @@ _x.py() {
             return 0
             ;;
         x.py__run)
-            opts="-v -i -j -h --args --verbose --incremental --config --build-dir --build --host --target --exclude --skip --include-default-paths --rustc-error-format --on-fail --dry-run --dump-bootstrap-shims --stage --keep-stage --keep-stage-std --src --jobs --warnings --error-format --json-output --color --bypass-bootstrap-lock --llvm-skip-rebuild --rust-profile-generate --rust-profile-use --llvm-profile-use --llvm-profile-generate --enable-bolt-settings --skip-stage0-validation --reproducible-artifact --set --help [PATHS]... [ARGS]..."
+            opts="-v -i -j -h --args --verbose --incremental --config --build-dir --build --host --target --exclude --skip --include-default-paths --rustc-error-format --on-fail --dry-run --dump-bootstrap-shims --stage --keep-stage --keep-stage-std --src --jobs --warnings --error-format --json-output --color --bypass-bootstrap-lock --rust-profile-generate --rust-profile-use --llvm-profile-use --llvm-profile-generate --enable-bolt-settings --skip-stage0-validation --reproducible-artifact --set --help [PATHS]... [ARGS]..."
             if [[ ${cur} == -* || ${COMP_CWORD} -eq 2 ]] ; then
                 COMPREPLY=( $(compgen -W "${opts}" -- "${cur}") )
                 return 0
@@ -2729,10 +2677,6 @@ _x.py() {
                     COMPREPLY=($(compgen -W "always never auto" -- "${cur}"))
                     return 0
                     ;;
-                --llvm-skip-rebuild)
-                    COMPREPLY=($(compgen -W "true false" -- "${cur}"))
-                    return 0
-                    ;;
                 --rust-profile-generate)
                     local oldifs
                     if [ -n "${IFS+x}" ]; then
@@ -2797,7 +2741,7 @@ _x.py() {
             return 0
             ;;
         x.py__setup)
-            opts="-v -i -j -h --verbose --incremental --config --build-dir --build --host --target --exclude --skip --include-default-paths --rustc-error-format --on-fail --dry-run --dump-bootstrap-shims --stage --keep-stage --keep-stage-std --src --jobs --warnings --error-format --json-output --color --bypass-bootstrap-lock --llvm-skip-rebuild --rust-profile-generate --rust-profile-use --llvm-profile-use --llvm-profile-generate --enable-bolt-settings --skip-stage0-validation --reproducible-artifact --set --help [<PROFILE>|hook|vscode|link] [PATHS]... [ARGS]..."
+            opts="-v -i -j -h --verbose --incremental --config --build-dir --build --host --target --exclude --skip --include-default-paths --rustc-error-format --on-fail --dry-run --dump-bootstrap-shims --stage --keep-stage --keep-stage-std --src --jobs --warnings --error-format --json-output --color --bypass-bootstrap-lock --rust-profile-generate --rust-profile-use --llvm-profile-use --llvm-profile-generate --enable-bolt-settings --skip-stage0-validation --reproducible-artifact --set --help [<PROFILE>|hook|vscode|link] [PATHS]... [ARGS]..."
             if [[ ${cur} == -* || ${COMP_CWORD} -eq 2 ]] ; then
                 COMPREPLY=( $(compgen -W "${opts}" -- "${cur}") )
                 return 0
@@ -2922,10 +2866,6 @@ _x.py() {
                     COMPREPLY=($(compgen -W "always never auto" -- "${cur}"))
                     return 0
                     ;;
-                --llvm-skip-rebuild)
-                    COMPREPLY=($(compgen -W "true false" -- "${cur}"))
-                    return 0
-                    ;;
                 --rust-profile-generate)
                     local oldifs
                     if [ -n "${IFS+x}" ]; then
@@ -2990,7 +2930,7 @@ _x.py() {
             return 0
             ;;
         x.py__suggest)
-            opts="-v -i -j -h --run --verbose --incremental --config --build-dir --build --host --target --exclude --skip --include-default-paths --rustc-error-format --on-fail --dry-run --dump-bootstrap-shims --stage --keep-stage --keep-stage-std --src --jobs --warnings --error-format --json-output --color --bypass-bootstrap-lock --llvm-skip-rebuild --rust-profile-generate --rust-profile-use --llvm-profile-use --llvm-profile-generate --enable-bolt-settings --skip-stage0-validation --reproducible-artifact --set --help [PATHS]... [ARGS]..."
+            opts="-v -i -j -h --run --verbose --incremental --config --build-dir --build --host --target --exclude --skip --include-default-paths --rustc-error-format --on-fail --dry-run --dump-bootstrap-shims --stage --keep-stage --keep-stage-std --src --jobs --warnings --error-format --json-output --color --bypass-bootstrap-lock --rust-profile-generate --rust-profile-use --llvm-profile-use --llvm-profile-generate --enable-bolt-settings --skip-stage0-validation --reproducible-artifact --set --help [PATHS]... [ARGS]..."
             if [[ ${cur} == -* || ${COMP_CWORD} -eq 2 ]] ; then
                 COMPREPLY=( $(compgen -W "${opts}" -- "${cur}") )
                 return 0
@@ -3115,10 +3055,6 @@ _x.py() {
                     COMPREPLY=($(compgen -W "always never auto" -- "${cur}"))
                     return 0
                     ;;
-                --llvm-skip-rebuild)
-                    COMPREPLY=($(compgen -W "true false" -- "${cur}"))
-                    return 0
-                    ;;
                 --rust-profile-generate)
                     local oldifs
                     if [ -n "${IFS+x}" ]; then
@@ -3183,7 +3119,7 @@ _x.py() {
             return 0
             ;;
         x.py__test)
-            opts="-v -i -j -h --no-fail-fast --test-args --compiletest-rustc-args --no-doc --doc --bless --extra-checks --force-rerun --only-modified --compare-mode --pass --run --rustfix-coverage --verbose --incremental --config --build-dir --build --host --target --exclude --skip --include-default-paths --rustc-error-format --on-fail --dry-run --dump-bootstrap-shims --stage --keep-stage --keep-stage-std --src --jobs --warnings --error-format --json-output --color --bypass-bootstrap-lock --llvm-skip-rebuild --rust-profile-generate --rust-profile-use --llvm-profile-use --llvm-profile-generate --enable-bolt-settings --skip-stage0-validation --reproducible-artifact --set --help [PATHS]... [ARGS]..."
+            opts="-v -i -j -h --no-fail-fast --test-args --compiletest-rustc-args --no-doc --doc --bless --extra-checks --force-rerun --only-modified --compare-mode --pass --run --rustfix-coverage --verbose --incremental --config --build-dir --build --host --target --exclude --skip --include-default-paths --rustc-error-format --on-fail --dry-run --dump-bootstrap-shims --stage --keep-stage --keep-stage-std --src --jobs --warnings --error-format --json-output --color --bypass-bootstrap-lock --rust-profile-generate --rust-profile-use --llvm-profile-use --llvm-profile-generate --enable-bolt-settings --skip-stage0-validation --reproducible-artifact --set --help [PATHS]... [ARGS]..."
             if [[ ${cur} == -* || ${COMP_CWORD} -eq 2 ]] ; then
                 COMPREPLY=( $(compgen -W "${opts}" -- "${cur}") )
                 return 0
@@ -3332,10 +3268,6 @@ _x.py() {
                     COMPREPLY=($(compgen -W "always never auto" -- "${cur}"))
                     return 0
                     ;;
-                --llvm-skip-rebuild)
-                    COMPREPLY=($(compgen -W "true false" -- "${cur}"))
-                    return 0
-                    ;;
                 --rust-profile-generate)
                     local oldifs
                     if [ -n "${IFS+x}" ]; then
@@ -3400,7 +3332,7 @@ _x.py() {
             return 0
             ;;
         x.py__vendor)
-            opts="-v -i -j -h --sync --versioned-dirs --verbose --incremental --config --build-dir --build --host --target --exclude --skip --include-default-paths --rustc-error-format --on-fail --dry-run --dump-bootstrap-shims --stage --keep-stage --keep-stage-std --src --jobs --warnings --error-format --json-output --color --bypass-bootstrap-lock --llvm-skip-rebuild --rust-profile-generate --rust-profile-use --llvm-profile-use --llvm-profile-generate --enable-bolt-settings --skip-stage0-validation --reproducible-artifact --set --help [PATHS]... [ARGS]..."
+            opts="-v -i -j -h --sync --versioned-dirs --verbose --incremental --config --build-dir --build --host --target --exclude --skip --include-default-paths --rustc-error-format --on-fail --dry-run --dump-bootstrap-shims --stage --keep-stage --keep-stage-std --src --jobs --warnings --error-format --json-output --color --bypass-bootstrap-lock --rust-profile-generate --rust-profile-use --llvm-profile-use --llvm-profile-generate --enable-bolt-settings --skip-stage0-validation --reproducible-artifact --set --help [PATHS]... [ARGS]..."
             if [[ ${cur} == -* || ${COMP_CWORD} -eq 2 ]] ; then
                 COMPREPLY=( $(compgen -W "${opts}" -- "${cur}") )
                 return 0
@@ -3529,10 +3461,6 @@ _x.py() {
                     COMPREPLY=($(compgen -W "always never auto" -- "${cur}"))
                     return 0
                     ;;
-                --llvm-skip-rebuild)
-                    COMPREPLY=($(compgen -W "true false" -- "${cur}"))
-                    return 0
-                    ;;
                 --rust-profile-generate)
                     local oldifs
                     if [ -n "${IFS+x}" ]; then
diff --git a/src/etc/completions/x.py.zsh b/src/etc/completions/x.py.zsh
index ae076b88345..c47937a3b73 100644
--- a/src/etc/completions/x.py.zsh
+++ b/src/etc/completions/x.py.zsh
@@ -33,7 +33,6 @@ _x.py() {
 '--warnings=[if value is deny, will deny warnings if value is warn, will emit warnings otherwise, use the default configured behaviour]:deny|warn:(deny warn default)' \
 '--error-format=[rustc error format]:FORMAT:( )' \
 '--color=[whether to use color in cargo and rustc output]:STYLE:(always never auto)' \
-'--llvm-skip-rebuild=[whether rebuilding llvm should be skipped, overriding \`skip-rebuld\` in config.toml]:VALUE:(true false)' \
 '--rust-profile-generate=[generate PGO profile with rustc build]:PROFILE:_files' \
 '--rust-profile-use=[use PGO profile for rustc build]:PROFILE:_files' \
 '--llvm-profile-use=[use PGO profile for LLVM build]:PROFILE:_files' \
@@ -84,7 +83,6 @@ _arguments "${_arguments_options[@]}" : \
 '--warnings=[if value is deny, will deny warnings if value is warn, will emit warnings otherwise, use the default configured behaviour]:deny|warn:(deny warn default)' \
 '--error-format=[rustc error format]:FORMAT:( )' \
 '--color=[whether to use color in cargo and rustc output]:STYLE:(always never auto)' \
-'--llvm-skip-rebuild=[whether rebuilding llvm should be skipped, overriding \`skip-rebuld\` in config.toml]:VALUE:(true false)' \
 '--rust-profile-generate=[generate PGO profile with rustc build]:PROFILE:_files' \
 '--rust-profile-use=[use PGO profile for rustc build]:PROFILE:_files' \
 '--llvm-profile-use=[use PGO profile for LLVM build]:PROFILE:_files' \
@@ -127,7 +125,6 @@ _arguments "${_arguments_options[@]}" : \
 '--warnings=[if value is deny, will deny warnings if value is warn, will emit warnings otherwise, use the default configured behaviour]:deny|warn:(deny warn default)' \
 '--error-format=[rustc error format]:FORMAT:( )' \
 '--color=[whether to use color in cargo and rustc output]:STYLE:(always never auto)' \
-'--llvm-skip-rebuild=[whether rebuilding llvm should be skipped, overriding \`skip-rebuld\` in config.toml]:VALUE:(true false)' \
 '--rust-profile-generate=[generate PGO profile with rustc build]:PROFILE:_files' \
 '--rust-profile-use=[use PGO profile for rustc build]:PROFILE:_files' \
 '--llvm-profile-use=[use PGO profile for LLVM build]:PROFILE:_files' \
@@ -175,7 +172,6 @@ _arguments "${_arguments_options[@]}" : \
 '--warnings=[if value is deny, will deny warnings if value is warn, will emit warnings otherwise, use the default configured behaviour]:deny|warn:(deny warn default)' \
 '--error-format=[rustc error format]:FORMAT:( )' \
 '--color=[whether to use color in cargo and rustc output]:STYLE:(always never auto)' \
-'--llvm-skip-rebuild=[whether rebuilding llvm should be skipped, overriding \`skip-rebuld\` in config.toml]:VALUE:(true false)' \
 '--rust-profile-generate=[generate PGO profile with rustc build]:PROFILE:_files' \
 '--rust-profile-use=[use PGO profile for rustc build]:PROFILE:_files' \
 '--llvm-profile-use=[use PGO profile for LLVM build]:PROFILE:_files' \
@@ -221,7 +217,6 @@ _arguments "${_arguments_options[@]}" : \
 '--warnings=[if value is deny, will deny warnings if value is warn, will emit warnings otherwise, use the default configured behaviour]:deny|warn:(deny warn default)' \
 '--error-format=[rustc error format]:FORMAT:( )' \
 '--color=[whether to use color in cargo and rustc output]:STYLE:(always never auto)' \
-'--llvm-skip-rebuild=[whether rebuilding llvm should be skipped, overriding \`skip-rebuld\` in config.toml]:VALUE:(true false)' \
 '--rust-profile-generate=[generate PGO profile with rustc build]:PROFILE:_files' \
 '--rust-profile-use=[use PGO profile for rustc build]:PROFILE:_files' \
 '--llvm-profile-use=[use PGO profile for LLVM build]:PROFILE:_files' \
@@ -264,7 +259,6 @@ _arguments "${_arguments_options[@]}" : \
 '--warnings=[if value is deny, will deny warnings if value is warn, will emit warnings otherwise, use the default configured behaviour]:deny|warn:(deny warn default)' \
 '--error-format=[rustc error format]:FORMAT:( )' \
 '--color=[whether to use color in cargo and rustc output]:STYLE:(always never auto)' \
-'--llvm-skip-rebuild=[whether rebuilding llvm should be skipped, overriding \`skip-rebuld\` in config.toml]:VALUE:(true false)' \
 '--rust-profile-generate=[generate PGO profile with rustc build]:PROFILE:_files' \
 '--rust-profile-use=[use PGO profile for rustc build]:PROFILE:_files' \
 '--llvm-profile-use=[use PGO profile for LLVM build]:PROFILE:_files' \
@@ -309,7 +303,6 @@ _arguments "${_arguments_options[@]}" : \
 '--warnings=[if value is deny, will deny warnings if value is warn, will emit warnings otherwise, use the default configured behaviour]:deny|warn:(deny warn default)' \
 '--error-format=[rustc error format]:FORMAT:( )' \
 '--color=[whether to use color in cargo and rustc output]:STYLE:(always never auto)' \
-'--llvm-skip-rebuild=[whether rebuilding llvm should be skipped, overriding \`skip-rebuld\` in config.toml]:VALUE:(true false)' \
 '--rust-profile-generate=[generate PGO profile with rustc build]:PROFILE:_files' \
 '--rust-profile-use=[use PGO profile for rustc build]:PROFILE:_files' \
 '--llvm-profile-use=[use PGO profile for LLVM build]:PROFILE:_files' \
@@ -360,7 +353,6 @@ _arguments "${_arguments_options[@]}" : \
 '--warnings=[if value is deny, will deny warnings if value is warn, will emit warnings otherwise, use the default configured behaviour]:deny|warn:(deny warn default)' \
 '--error-format=[rustc error format]:FORMAT:( )' \
 '--color=[whether to use color in cargo and rustc output]:STYLE:(always never auto)' \
-'--llvm-skip-rebuild=[whether rebuilding llvm should be skipped, overriding \`skip-rebuld\` in config.toml]:VALUE:(true false)' \
 '--rust-profile-generate=[generate PGO profile with rustc build]:PROFILE:_files' \
 '--rust-profile-use=[use PGO profile for rustc build]:PROFILE:_files' \
 '--llvm-profile-use=[use PGO profile for LLVM build]:PROFILE:_files' \
@@ -411,7 +403,6 @@ _arguments "${_arguments_options[@]}" : \
 '--warnings=[if value is deny, will deny warnings if value is warn, will emit warnings otherwise, use the default configured behaviour]:deny|warn:(deny warn default)' \
 '--error-format=[rustc error format]:FORMAT:( )' \
 '--color=[whether to use color in cargo and rustc output]:STYLE:(always never auto)' \
-'--llvm-skip-rebuild=[whether rebuilding llvm should be skipped, overriding \`skip-rebuld\` in config.toml]:VALUE:(true false)' \
 '--rust-profile-generate=[generate PGO profile with rustc build]:PROFILE:_files' \
 '--rust-profile-use=[use PGO profile for rustc build]:PROFILE:_files' \
 '--llvm-profile-use=[use PGO profile for LLVM build]:PROFILE:_files' \
@@ -458,7 +449,6 @@ _arguments "${_arguments_options[@]}" : \
 '--warnings=[if value is deny, will deny warnings if value is warn, will emit warnings otherwise, use the default configured behaviour]:deny|warn:(deny warn default)' \
 '--error-format=[rustc error format]:FORMAT:( )' \
 '--color=[whether to use color in cargo and rustc output]:STYLE:(always never auto)' \
-'--llvm-skip-rebuild=[whether rebuilding llvm should be skipped, overriding \`skip-rebuld\` in config.toml]:VALUE:(true false)' \
 '--rust-profile-generate=[generate PGO profile with rustc build]:PROFILE:_files' \
 '--rust-profile-use=[use PGO profile for rustc build]:PROFILE:_files' \
 '--llvm-profile-use=[use PGO profile for LLVM build]:PROFILE:_files' \
@@ -501,7 +491,6 @@ _arguments "${_arguments_options[@]}" : \
 '--warnings=[if value is deny, will deny warnings if value is warn, will emit warnings otherwise, use the default configured behaviour]:deny|warn:(deny warn default)' \
 '--error-format=[rustc error format]:FORMAT:( )' \
 '--color=[whether to use color in cargo and rustc output]:STYLE:(always never auto)' \
-'--llvm-skip-rebuild=[whether rebuilding llvm should be skipped, overriding \`skip-rebuld\` in config.toml]:VALUE:(true false)' \
 '--rust-profile-generate=[generate PGO profile with rustc build]:PROFILE:_files' \
 '--rust-profile-use=[use PGO profile for rustc build]:PROFILE:_files' \
 '--llvm-profile-use=[use PGO profile for LLVM build]:PROFILE:_files' \
@@ -545,7 +534,6 @@ _arguments "${_arguments_options[@]}" : \
 '--warnings=[if value is deny, will deny warnings if value is warn, will emit warnings otherwise, use the default configured behaviour]:deny|warn:(deny warn default)' \
 '--error-format=[rustc error format]:FORMAT:( )' \
 '--color=[whether to use color in cargo and rustc output]:STYLE:(always never auto)' \
-'--llvm-skip-rebuild=[whether rebuilding llvm should be skipped, overriding \`skip-rebuld\` in config.toml]:VALUE:(true false)' \
 '--rust-profile-generate=[generate PGO profile with rustc build]:PROFILE:_files' \
 '--rust-profile-use=[use PGO profile for rustc build]:PROFILE:_files' \
 '--llvm-profile-use=[use PGO profile for LLVM build]:PROFILE:_files' \
@@ -588,7 +576,6 @@ _arguments "${_arguments_options[@]}" : \
 '--warnings=[if value is deny, will deny warnings if value is warn, will emit warnings otherwise, use the default configured behaviour]:deny|warn:(deny warn default)' \
 '--error-format=[rustc error format]:FORMAT:( )' \
 '--color=[whether to use color in cargo and rustc output]:STYLE:(always never auto)' \
-'--llvm-skip-rebuild=[whether rebuilding llvm should be skipped, overriding \`skip-rebuld\` in config.toml]:VALUE:(true false)' \
 '--rust-profile-generate=[generate PGO profile with rustc build]:PROFILE:_files' \
 '--rust-profile-use=[use PGO profile for rustc build]:PROFILE:_files' \
 '--llvm-profile-use=[use PGO profile for LLVM build]:PROFILE:_files' \
@@ -632,7 +619,6 @@ _arguments "${_arguments_options[@]}" : \
 '--warnings=[if value is deny, will deny warnings if value is warn, will emit warnings otherwise, use the default configured behaviour]:deny|warn:(deny warn default)' \
 '--error-format=[rustc error format]:FORMAT:( )' \
 '--color=[whether to use color in cargo and rustc output]:STYLE:(always never auto)' \
-'--llvm-skip-rebuild=[whether rebuilding llvm should be skipped, overriding \`skip-rebuld\` in config.toml]:VALUE:(true false)' \
 '--rust-profile-generate=[generate PGO profile with rustc build]:PROFILE:_files' \
 '--rust-profile-use=[use PGO profile for rustc build]:PROFILE:_files' \
 '--llvm-profile-use=[use PGO profile for LLVM build]:PROFILE:_files' \
@@ -675,7 +661,6 @@ _arguments "${_arguments_options[@]}" : \
 '--warnings=[if value is deny, will deny warnings if value is warn, will emit warnings otherwise, use the default configured behaviour]:deny|warn:(deny warn default)' \
 '--error-format=[rustc error format]:FORMAT:( )' \
 '--color=[whether to use color in cargo and rustc output]:STYLE:(always never auto)' \
-'--llvm-skip-rebuild=[whether rebuilding llvm should be skipped, overriding \`skip-rebuld\` in config.toml]:VALUE:(true false)' \
 '--rust-profile-generate=[generate PGO profile with rustc build]:PROFILE:_files' \
 '--rust-profile-use=[use PGO profile for rustc build]:PROFILE:_files' \
 '--llvm-profile-use=[use PGO profile for LLVM build]:PROFILE:_files' \
@@ -719,7 +704,6 @@ _arguments "${_arguments_options[@]}" : \
 '--warnings=[if value is deny, will deny warnings if value is warn, will emit warnings otherwise, use the default configured behaviour]:deny|warn:(deny warn default)' \
 '--error-format=[rustc error format]:FORMAT:( )' \
 '--color=[whether to use color in cargo and rustc output]:STYLE:(always never auto)' \
-'--llvm-skip-rebuild=[whether rebuilding llvm should be skipped, overriding \`skip-rebuld\` in config.toml]:VALUE:(true false)' \
 '--rust-profile-generate=[generate PGO profile with rustc build]:PROFILE:_files' \
 '--rust-profile-use=[use PGO profile for rustc build]:PROFILE:_files' \
 '--llvm-profile-use=[use PGO profile for LLVM build]:PROFILE:_files' \
@@ -764,7 +748,6 @@ _arguments "${_arguments_options[@]}" : \
 '--warnings=[if value is deny, will deny warnings if value is warn, will emit warnings otherwise, use the default configured behaviour]:deny|warn:(deny warn default)' \
 '--error-format=[rustc error format]:FORMAT:( )' \
 '--color=[whether to use color in cargo and rustc output]:STYLE:(always never auto)' \
-'--llvm-skip-rebuild=[whether rebuilding llvm should be skipped, overriding \`skip-rebuld\` in config.toml]:VALUE:(true false)' \
 '--rust-profile-generate=[generate PGO profile with rustc build]:PROFILE:_files' \
 '--rust-profile-use=[use PGO profile for rustc build]:PROFILE:_files' \
 '--llvm-profile-use=[use PGO profile for LLVM build]:PROFILE:_files' \
@@ -808,7 +791,6 @@ _arguments "${_arguments_options[@]}" : \
 '--warnings=[if value is deny, will deny warnings if value is warn, will emit warnings otherwise, use the default configured behaviour]:deny|warn:(deny warn default)' \
 '--error-format=[rustc error format]:FORMAT:( )' \
 '--color=[whether to use color in cargo and rustc output]:STYLE:(always never auto)' \
-'--llvm-skip-rebuild=[whether rebuilding llvm should be skipped, overriding \`skip-rebuld\` in config.toml]:VALUE:(true false)' \
 '--rust-profile-generate=[generate PGO profile with rustc build]:PROFILE:_files' \
 '--rust-profile-use=[use PGO profile for rustc build]:PROFILE:_files' \
 '--llvm-profile-use=[use PGO profile for LLVM build]:PROFILE:_files' \
diff --git a/src/librustdoc/html/highlight.rs b/src/librustdoc/html/highlight.rs
index 29b4889a6ab..e728da67dc2 100644
--- a/src/librustdoc/html/highlight.rs
+++ b/src/librustdoc/html/highlight.rs
@@ -879,7 +879,9 @@ impl<'src> Classifier<'src> {
             | TokenKind::UnknownPrefix
             | TokenKind::InvalidPrefix
             | TokenKind::InvalidIdent => Class::Ident(self.new_span(before, text)),
-            TokenKind::Lifetime { .. } => Class::Lifetime,
+            TokenKind::Lifetime { .. }
+            | TokenKind::RawLifetime
+            | TokenKind::UnknownPrefixLifetime => Class::Lifetime,
             TokenKind::Eof => panic!("Eof in advance"),
         };
         // Anything that didn't return above is the simple case where we the
diff --git a/src/librustdoc/html/static/js/externs.js b/src/librustdoc/html/static/js/externs.js
index 6fd60d6cc34..3d3e0a8f838 100644
--- a/src/librustdoc/html/static/js/externs.js
+++ b/src/librustdoc/html/static/js/externs.js
@@ -41,6 +41,7 @@ let ParserState;
  *     foundElems: number,
  *     totalElems: number,
  *     literalSearch: boolean,
+ *     hasReturnArrow: boolean,
  *     corrections: Array<{from: string, to: integer}> | null,
  *     typeFingerprint: Uint32Array,
  *     error: Array<string> | null,
diff --git a/src/librustdoc/html/static/js/search.js b/src/librustdoc/html/static/js/search.js
index 6f575e60ed4..4da0bbc787d 100644
--- a/src/librustdoc/html/static/js/search.js
+++ b/src/librustdoc/html/static/js/search.js
@@ -657,7 +657,7 @@ function createQueryElement(query, parserState, name, generics, isInGenerics) {
     }
     const typeFilter = parserState.typeFilter;
     parserState.typeFilter = null;
-    if (name === "!") {
+    if (name.trim() === "!") {
         if (typeFilter !== null && typeFilter !== "primitive") {
             throw [
                 "Invalid search type: primitive never type ",
@@ -1795,6 +1795,7 @@ class DocSearch {
                 // Total number of elements (includes generics).
                 totalElems: 0,
                 literalSearch: false,
+                hasReturnArrow: false,
                 error: null,
                 correction: null,
                 proposeCorrectionFrom: null,
@@ -1823,6 +1824,7 @@ class DocSearch {
                         continue;
                     } else if (c === "-" || c === ">") {
                         if (isReturnArrow(parserState)) {
+                            query.hasReturnArrow = true;
                             break;
                         }
                         throw ["Unexpected ", c, " (did you mean ", "->", "?)"];
@@ -1889,9 +1891,7 @@ class DocSearch {
                     // Get returned elements.
                     getItemsBefore(query, parserState, query.returned, "");
                     // Nothing can come afterward!
-                    if (query.returned.length === 0) {
-                        throw ["Expected at least one item after ", "->"];
-                    }
+                    query.hasReturnArrow = true;
                     break;
                 } else {
                     parserState.pos += 1;
@@ -3249,7 +3249,7 @@ class DocSearch {
                 this.buildFunctionTypeFingerprint(elem, parsedQuery.typeFingerprint, fps);
             }
 
-            if (parsedQuery.foundElems === 1 && parsedQuery.returned.length === 0) {
+            if (parsedQuery.foundElems === 1 && !parsedQuery.hasReturnArrow) {
                 if (parsedQuery.elems.length === 1) {
                     const elem = parsedQuery.elems[0];
                     const length = this.searchIndex.length;
diff --git a/src/librustdoc/json/conversions.rs b/src/librustdoc/json/conversions.rs
index b97d710c007..59e4b072a12 100644
--- a/src/librustdoc/json/conversions.rs
+++ b/src/librustdoc/json/conversions.rs
@@ -156,7 +156,7 @@ impl FromWithTcx<clean::GenericArgs> for GenericArgs {
         match args {
             AngleBracketed { args, constraints } => GenericArgs::AngleBracketed {
                 args: args.into_vec().into_tcx(tcx),
-                bindings: constraints.into_tcx(tcx),
+                constraints: constraints.into_tcx(tcx),
             },
             Parenthesized { inputs, output } => GenericArgs::Parenthesized {
                 inputs: inputs.into_vec().into_tcx(tcx),
@@ -198,9 +198,9 @@ impl FromWithTcx<clean::ConstantKind> for Constant {
     }
 }
 
-impl FromWithTcx<clean::AssocItemConstraint> for TypeBinding {
+impl FromWithTcx<clean::AssocItemConstraint> for AssocItemConstraint {
     fn from_tcx(constraint: clean::AssocItemConstraint, tcx: TyCtxt<'_>) -> Self {
-        TypeBinding {
+        AssocItemConstraint {
             name: constraint.assoc.name.to_string(),
             args: constraint.assoc.args.into_tcx(tcx),
             binding: constraint.kind.into_tcx(tcx),
@@ -208,12 +208,12 @@ impl FromWithTcx<clean::AssocItemConstraint> for TypeBinding {
     }
 }
 
-impl FromWithTcx<clean::AssocItemConstraintKind> for TypeBindingKind {
+impl FromWithTcx<clean::AssocItemConstraintKind> for AssocItemConstraintKind {
     fn from_tcx(kind: clean::AssocItemConstraintKind, tcx: TyCtxt<'_>) -> Self {
         use clean::AssocItemConstraintKind::*;
         match kind {
-            Equality { term } => TypeBindingKind::Equality(term.into_tcx(tcx)),
-            Bound { bounds } => TypeBindingKind::Constraint(bounds.into_tcx(tcx)),
+            Equality { term } => AssocItemConstraintKind::Equality(term.into_tcx(tcx)),
+            Bound { bounds } => AssocItemConstraintKind::Constraint(bounds.into_tcx(tcx)),
         }
     }
 }
@@ -314,7 +314,7 @@ fn from_clean_item(item: clean::Item, tcx: TyCtxt<'_>) -> ItemEnum {
         ModuleItem(m) => {
             ItemEnum::Module(Module { is_crate, items: ids(m.items, tcx), is_stripped: false })
         }
-        ImportItem(i) => ItemEnum::Import(i.into_tcx(tcx)),
+        ImportItem(i) => ItemEnum::Use(i.into_tcx(tcx)),
         StructItem(s) => ItemEnum::Struct(s.into_tcx(tcx)),
         UnionItem(u) => ItemEnum::Union(u.into_tcx(tcx)),
         StructFieldItem(f) => ItemEnum::StructField(f.into_tcx(tcx)),
@@ -331,7 +331,7 @@ fn from_clean_item(item: clean::Item, tcx: TyCtxt<'_>) -> ItemEnum {
         ImplItem(i) => ItemEnum::Impl((*i).into_tcx(tcx)),
         StaticItem(s) => ItemEnum::Static(s.into_tcx(tcx)),
         ForeignStaticItem(s, _) => ItemEnum::Static(s.into_tcx(tcx)),
-        ForeignTypeItem => ItemEnum::ForeignType,
+        ForeignTypeItem => ItemEnum::ExternType,
         TypeAliasItem(t) => ItemEnum::TypeAlias(t.into_tcx(tcx)),
         // FIXME(generic_const_items): Add support for generic free consts
         ConstantItem(ci) => {
@@ -347,21 +347,19 @@ fn from_clean_item(item: clean::Item, tcx: TyCtxt<'_>) -> ItemEnum {
         }
         // FIXME(generic_const_items): Add support for generic associated consts.
         TyAssocConstItem(_generics, ty) => {
-            ItemEnum::AssocConst { type_: (*ty).into_tcx(tcx), default: None }
+            ItemEnum::AssocConst { type_: (*ty).into_tcx(tcx), value: None }
         }
         // FIXME(generic_const_items): Add support for generic associated consts.
         AssocConstItem(ci) => {
-            ItemEnum::AssocConst { type_: ci.type_.into_tcx(tcx), default: Some(ci.kind.expr(tcx)) }
+            ItemEnum::AssocConst { type_: ci.type_.into_tcx(tcx), value: Some(ci.kind.expr(tcx)) }
+        }
+        TyAssocTypeItem(g, b) => {
+            ItemEnum::AssocType { generics: g.into_tcx(tcx), bounds: b.into_tcx(tcx), type_: None }
         }
-        TyAssocTypeItem(g, b) => ItemEnum::AssocType {
-            generics: g.into_tcx(tcx),
-            bounds: b.into_tcx(tcx),
-            default: None,
-        },
         AssocTypeItem(t, b) => ItemEnum::AssocType {
             generics: t.generics.into_tcx(tcx),
             bounds: b.into_tcx(tcx),
-            default: Some(t.item_type.unwrap_or(t.type_).into_tcx(tcx)),
+            type_: Some(t.item_type.unwrap_or(t.type_).into_tcx(tcx)),
         },
         // `convert_item` early returns `None` for stripped items and keywords.
         KeywordItem => unreachable!(),
@@ -385,7 +383,7 @@ fn from_clean_item(item: clean::Item, tcx: TyCtxt<'_>) -> ItemEnum {
 
 impl FromWithTcx<clean::Struct> for Struct {
     fn from_tcx(struct_: clean::Struct, tcx: TyCtxt<'_>) -> Self {
-        let fields_stripped = struct_.has_stripped_entries();
+        let has_stripped_fields = struct_.has_stripped_entries();
         let clean::Struct { ctor_kind, generics, fields } = struct_;
 
         let kind = match ctor_kind {
@@ -394,7 +392,7 @@ impl FromWithTcx<clean::Struct> for Struct {
                 assert!(fields.is_empty());
                 StructKind::Unit
             }
-            None => StructKind::Plain { fields: ids(fields, tcx), fields_stripped },
+            None => StructKind::Plain { fields: ids(fields, tcx), has_stripped_fields },
         };
 
         Struct {
@@ -407,22 +405,22 @@ impl FromWithTcx<clean::Struct> for Struct {
 
 impl FromWithTcx<clean::Union> for Union {
     fn from_tcx(union_: clean::Union, tcx: TyCtxt<'_>) -> Self {
-        let fields_stripped = union_.has_stripped_entries();
+        let has_stripped_fields = union_.has_stripped_entries();
         let clean::Union { generics, fields } = union_;
         Union {
             generics: generics.into_tcx(tcx),
-            fields_stripped,
+            has_stripped_fields,
             fields: ids(fields, tcx),
             impls: Vec::new(), // Added in JsonRenderer::item
         }
     }
 }
 
-pub(crate) fn from_fn_header(header: &rustc_hir::FnHeader) -> Header {
-    Header {
-        async_: header.is_async(),
-        const_: header.is_const(),
-        unsafe_: header.is_unsafe(),
+pub(crate) fn from_fn_header(header: &rustc_hir::FnHeader) -> FunctionHeader {
+    FunctionHeader {
+        is_async: header.is_async(),
+        is_const: header.is_const(),
+        is_unsafe: header.is_unsafe(),
         abi: convert_abi(header.abi),
     }
 }
@@ -474,7 +472,7 @@ impl FromWithTcx<clean::GenericParamDefKind> for GenericParamDefKind {
             Type { bounds, default, synthetic } => GenericParamDefKind::Type {
                 bounds: bounds.into_tcx(tcx),
                 default: default.map(|x| (*x).into_tcx(tcx)),
-                synthetic,
+                is_synthetic: synthetic,
             },
             Const { ty, default, synthetic: _ } => GenericParamDefKind::Const {
                 type_: (*ty).into_tcx(tcx),
@@ -508,7 +506,7 @@ impl FromWithTcx<clean::WherePredicate> for WherePredicate {
                                         .map(|bound| bound.into_tcx(tcx))
                                         .collect(),
                                     default: default.map(|ty| (*ty).into_tcx(tcx)),
-                                    synthetic,
+                                    is_synthetic: synthetic,
                                 }
                             }
                             clean::GenericParamDefKind::Const { ty, default, synthetic: _ } => {
@@ -602,12 +600,12 @@ impl FromWithTcx<clean::Type> for Type {
             ImplTrait(g) => Type::ImplTrait(g.into_tcx(tcx)),
             Infer => Type::Infer,
             RawPointer(mutability, type_) => Type::RawPointer {
-                mutable: mutability == ast::Mutability::Mut,
+                is_mutable: mutability == ast::Mutability::Mut,
                 type_: Box::new((*type_).into_tcx(tcx)),
             },
             BorrowedRef { lifetime, mutability, type_ } => Type::BorrowedRef {
                 lifetime: lifetime.map(convert_lifetime),
-                mutable: mutability == ast::Mutability::Mut,
+                is_mutable: mutability == ast::Mutability::Mut,
                 type_: Box::new((*type_).into_tcx(tcx)),
             },
             QPath(box clean::QPathData { assoc, self_type, trait_, .. }) => Type::QualifiedPath {
@@ -643,29 +641,29 @@ impl FromWithTcx<clean::BareFunctionDecl> for FunctionPointer {
     fn from_tcx(bare_decl: clean::BareFunctionDecl, tcx: TyCtxt<'_>) -> Self {
         let clean::BareFunctionDecl { safety, generic_params, decl, abi } = bare_decl;
         FunctionPointer {
-            header: Header {
-                unsafe_: matches!(safety, rustc_hir::Safety::Unsafe),
-                const_: false,
-                async_: false,
+            header: FunctionHeader {
+                is_unsafe: matches!(safety, rustc_hir::Safety::Unsafe),
+                is_const: false,
+                is_async: false,
                 abi: convert_abi(abi),
             },
             generic_params: generic_params.into_tcx(tcx),
-            decl: decl.into_tcx(tcx),
+            sig: decl.into_tcx(tcx),
         }
     }
 }
 
-impl FromWithTcx<clean::FnDecl> for FnDecl {
+impl FromWithTcx<clean::FnDecl> for FunctionSignature {
     fn from_tcx(decl: clean::FnDecl, tcx: TyCtxt<'_>) -> Self {
         let clean::FnDecl { inputs, output, c_variadic } = decl;
-        FnDecl {
+        FunctionSignature {
             inputs: inputs
                 .values
                 .into_iter()
                 .map(|arg| (arg.name.to_string(), arg.type_.into_tcx(tcx)))
                 .collect(),
             output: if output.is_unit() { None } else { Some(output.into_tcx(tcx)) },
-            c_variadic,
+            is_c_variadic: c_variadic,
         }
     }
 }
@@ -702,12 +700,12 @@ impl FromWithTcx<clean::Impl> for Impl {
         let provided_trait_methods = impl_.provided_trait_methods(tcx);
         let clean::Impl { safety, generics, trait_, for_, items, polarity, kind } = impl_;
         // FIXME: use something like ImplKind in JSON?
-        let (synthetic, blanket_impl) = match kind {
+        let (is_synthetic, blanket_impl) = match kind {
             clean::ImplKind::Normal | clean::ImplKind::FakeVariadic => (false, None),
             clean::ImplKind::Auto => (true, None),
             clean::ImplKind::Blanket(ty) => (false, Some(*ty)),
         };
-        let negative_polarity = match polarity {
+        let is_negative = match polarity {
             ty::ImplPolarity::Positive | ty::ImplPolarity::Reservation => false,
             ty::ImplPolarity::Negative => true,
         };
@@ -721,8 +719,8 @@ impl FromWithTcx<clean::Impl> for Impl {
             trait_: trait_.map(|path| path.into_tcx(tcx)),
             for_: for_.into_tcx(tcx),
             items: ids(items, tcx),
-            negative: negative_polarity,
-            synthetic,
+            is_negative,
+            is_synthetic,
             blanket_impl: blanket_impl.map(|x| x.into_tcx(tcx)),
         }
     }
@@ -736,7 +734,7 @@ pub(crate) fn from_function(
 ) -> Function {
     let clean::Function { decl, generics } = *function;
     Function {
-        decl: decl.into_tcx(tcx),
+        sig: decl.into_tcx(tcx),
         generics: generics.into_tcx(tcx),
         header: from_fn_header(&header),
         has_body,
@@ -745,11 +743,11 @@ pub(crate) fn from_function(
 
 impl FromWithTcx<clean::Enum> for Enum {
     fn from_tcx(enum_: clean::Enum, tcx: TyCtxt<'_>) -> Self {
-        let variants_stripped = enum_.has_stripped_entries();
+        let has_stripped_variants = enum_.has_stripped_entries();
         let clean::Enum { variants, generics } = enum_;
         Enum {
             generics: generics.into_tcx(tcx),
-            variants_stripped,
+            has_stripped_variants,
             variants: ids(variants, tcx),
             impls: Vec::new(), // Added in JsonRenderer::item
         }
@@ -766,7 +764,7 @@ impl FromWithTcx<clean::Variant> for Variant {
             CLike => VariantKind::Plain,
             Tuple(fields) => VariantKind::Tuple(ids_keeping_stripped(fields, tcx)),
             Struct(s) => VariantKind::Struct {
-                fields_stripped: s.has_stripped_entries(),
+                has_stripped_fields: s.has_stripped_entries(),
                 fields: ids(s.fields, tcx),
             },
         };
@@ -787,21 +785,21 @@ impl FromWithTcx<clean::Discriminant> for Discriminant {
     }
 }
 
-impl FromWithTcx<clean::Import> for Import {
+impl FromWithTcx<clean::Import> for Use {
     fn from_tcx(import: clean::Import, tcx: TyCtxt<'_>) -> Self {
         use clean::ImportKind::*;
-        let (name, glob) = match import.kind {
+        let (name, is_glob) = match import.kind {
             Simple(s) => (s.to_string(), false),
             Glob => (
                 import.source.path.last_opt().unwrap_or_else(|| Symbol::intern("*")).to_string(),
                 true,
             ),
         };
-        Import {
+        Use {
             source: import.source.path.whole_name(),
             name,
             id: import.source.did.map(ItemId::from).map(|i| id_from_item_default(i, tcx)),
-            glob,
+            is_glob,
         }
     }
 }
@@ -835,7 +833,7 @@ impl FromWithTcx<clean::Static> for Static {
     fn from_tcx(stat: clean::Static, tcx: TyCtxt<'_>) -> Self {
         Static {
             type_: (*stat.type_).into_tcx(tcx),
-            mutable: stat.mutability == ast::Mutability::Mut,
+            is_mutable: stat.mutability == ast::Mutability::Mut,
             expr: stat
                 .expr
                 .map(|e| rendered_const(tcx, tcx.hir().body(e), tcx.hir().body_owner_def_id(e)))
@@ -856,7 +854,7 @@ impl FromWithTcx<ItemType> for ItemKind {
         match kind {
             Module => ItemKind::Module,
             ExternCrate => ItemKind::ExternCrate,
-            Import => ItemKind::Import,
+            Import => ItemKind::Use,
             Struct => ItemKind::Struct,
             Union => ItemKind::Union,
             Enum => ItemKind::Enum,
@@ -872,7 +870,7 @@ impl FromWithTcx<ItemType> for ItemKind {
             Primitive => ItemKind::Primitive,
             AssocConst => ItemKind::AssocConst,
             AssocType => ItemKind::AssocType,
-            ForeignType => ItemKind::ForeignType,
+            ForeignType => ItemKind::ExternType,
             Keyword => ItemKind::Keyword,
             TraitAlias => ItemKind::TraitAlias,
             ProcAttribute => ItemKind::ProcAttribute,
diff --git a/src/librustdoc/json/mod.rs b/src/librustdoc/json/mod.rs
index 1b2d61a7637..03a012864ef 100644
--- a/src/librustdoc/json/mod.rs
+++ b/src/librustdoc/json/mod.rs
@@ -197,7 +197,7 @@ impl<'tcx> FormatRenderer<'tcx> for JsonRenderer<'tcx> {
 
                 types::ItemEnum::Function(_)
                 | types::ItemEnum::Module(_)
-                | types::ItemEnum::Import(_)
+                | types::ItemEnum::Use(_)
                 | types::ItemEnum::AssocConst { .. }
                 | types::ItemEnum::AssocType { .. } => true,
                 types::ItemEnum::ExternCrate { .. }
@@ -208,7 +208,7 @@ impl<'tcx> FormatRenderer<'tcx> for JsonRenderer<'tcx> {
                 | types::ItemEnum::TypeAlias(_)
                 | types::ItemEnum::Constant { .. }
                 | types::ItemEnum::Static(_)
-                | types::ItemEnum::ForeignType
+                | types::ItemEnum::ExternType
                 | types::ItemEnum::Macro(_)
                 | types::ItemEnum::ProcMacro(_) => false,
             };
diff --git a/src/rustdoc-json-types/lib.rs b/src/rustdoc-json-types/lib.rs
index 40a90c1a565..ef21779b099 100644
--- a/src/rustdoc-json-types/lib.rs
+++ b/src/rustdoc-json-types/lib.rs
@@ -13,7 +13,7 @@ use serde::{Deserialize, Serialize};
 /// This integer is incremented with every breaking change to the API,
 /// and is returned along with the JSON blob as [`Crate::format_version`].
 /// Consuming code should assert that this value matches the format version(s) that it supports.
-pub const FORMAT_VERSION: u32 = 33;
+pub const FORMAT_VERSION: u32 = 34;
 
 /// The root of the emitted JSON blob.
 ///
@@ -194,7 +194,7 @@ pub enum GenericArgs {
         /// ```
         args: Vec<GenericArg>,
         /// Associated type or constant bindings (e.g. `Item=i32` or `Item: Clone`) for this type.
-        bindings: Vec<TypeBinding>,
+        constraints: Vec<AssocItemConstraint>,
     },
     /// `Fn(A, B) -> C`
     Parenthesized {
@@ -258,19 +258,19 @@ pub struct Constant {
 ///              ^^^^^^^^^^  ^^^^^^^^^^^^^^^
 /// ```
 #[derive(Clone, Debug, PartialEq, Eq, Hash, Serialize, Deserialize)]
-pub struct TypeBinding {
+pub struct AssocItemConstraint {
     /// The name of the associated type/constant.
     pub name: String,
     /// Arguments provided to the associated type/constant.
     pub args: GenericArgs,
     /// The kind of bound applied to the associated type/constant.
-    pub binding: TypeBindingKind,
+    pub binding: AssocItemConstraintKind,
 }
 
 /// The way in which an associate type/constant is bound.
 #[derive(Clone, Debug, PartialEq, Eq, Hash, Serialize, Deserialize)]
 #[serde(rename_all = "snake_case")]
-pub enum TypeBindingKind {
+pub enum AssocItemConstraintKind {
     /// The required value/type is specified exactly. e.g.
     /// ```text
     /// Iterator<Item = u32, IntoIter: DoubleEndedIterator>
@@ -311,7 +311,7 @@ pub enum ItemKind {
     /// A crate imported via the `extern crate` syntax.
     ExternCrate,
     /// An import of 1 or more items into scope, using the `use` keyword.
-    Import,
+    Use,
     /// A `struct` declaration.
     Struct,
     /// A field of a struct.
@@ -341,7 +341,7 @@ pub enum ItemKind {
     /// `type`s from an `extern` block.
     ///
     /// See [the tracking issue](https://github.com/rust-lang/rust/issues/43467)
-    ForeignType,
+    ExternType,
     /// A macro declaration.
     ///
     /// Corresponds to either `ItemEnum::Macro(_)`
@@ -386,7 +386,7 @@ pub enum ItemEnum {
         rename: Option<String>,
     },
     /// An import of 1 or more items into scope, using the `use` keyword.
-    Import(Import),
+    Use(Use),
 
     /// A `union` declaration.
     Union(Union),
@@ -429,7 +429,7 @@ pub enum ItemEnum {
     /// `type`s from an `extern` block.
     ///
     /// See [the tracking issue](https://github.com/rust-lang/rust/issues/43467)
-    ForeignType,
+    ExternType,
 
     /// A macro_rules! declarative macro. Contains a single string with the source
     /// representation of the macro with the patterns stripped.
@@ -447,12 +447,19 @@ pub enum ItemEnum {
         /// The type of the constant.
         #[serde(rename = "type")]
         type_: Type,
-        /// The stringified expression for the default value, if provided, e.g.
+        /// Inside a trait declaration, this is the default value for the associated constant,
+        /// if provided.
+        /// Inside an `impl` block, this is the value assigned to the associated constant,
+        /// and will always be present.
+        ///
+        /// The representation is implementation-defined and not guaranteed to be representative of
+        /// either the resulting value or of the source code.
+        ///
         /// ```rust
         /// const X: usize = 640 * 1024;
         /// //               ^^^^^^^^^^
         /// ```
-        default: Option<String>,
+        value: Option<String>,
     },
     /// An associated type of a trait or a type.
     AssocType {
@@ -467,12 +474,16 @@ pub enum ItemEnum {
         /// }
         /// ```
         bounds: Vec<GenericBound>,
-        /// The default for this type, if provided, e.g.
+        /// Inside a trait declaration, this is the default for the associated type, if provided.
+        /// Inside an impl block, this is the type assigned to the associated type, and will always
+        /// be present.
+        ///
         /// ```rust
         /// type X = usize;
         /// //       ^^^^^
         /// ```
-        default: Option<Type>,
+        #[serde(rename = "type")]
+        type_: Option<Type>,
     },
 }
 
@@ -497,7 +508,7 @@ pub struct Union {
     /// The generic parameters and where clauses on this union.
     pub generics: Generics,
     /// Whether any fields have been removed from the result, due to being private or hidden.
-    pub fields_stripped: bool,
+    pub has_stripped_fields: bool,
     /// The list of fields in the union.
     ///
     /// All of the corresponding [`Item`]s are of kind [`ItemEnum::StructField`].
@@ -554,7 +565,7 @@ pub enum StructKind {
         /// All of the corresponding [`Item`]s are of kind [`ItemEnum::StructField`].
         fields: Vec<Id>,
         /// Whether any fields have been removed from the result, due to being private or hidden.
-        fields_stripped: bool,
+        has_stripped_fields: bool,
     },
 }
 
@@ -564,7 +575,7 @@ pub struct Enum {
     /// Information about the type parameters and `where` clauses of the enum.
     pub generics: Generics,
     /// Whether any variants have been removed from the result, due to being private or hidden.
-    pub variants_stripped: bool,
+    pub has_stripped_variants: bool,
     /// The list of variants in the enum.
     ///
     /// All of the corresponding [`Item`]s are of kind [`ItemEnum::Variant`]
@@ -621,7 +632,7 @@ pub enum VariantKind {
         /// All of the corresponding [`Item`]s are of kind [`ItemEnum::Variant`].
         fields: Vec<Id>,
         /// Whether any variants have been removed from the result, due to being private or hidden.
-        fields_stripped: bool,
+        has_stripped_fields: bool,
     },
 }
 
@@ -645,16 +656,13 @@ pub struct Discriminant {
 
 /// A set of fundamental properties of a function.
 #[derive(Clone, Debug, PartialEq, Eq, Hash, Serialize, Deserialize)]
-pub struct Header {
+pub struct FunctionHeader {
     /// Is this function marked as `const`?
-    #[serde(rename = "const")]
-    pub const_: bool,
+    pub is_const: bool,
     /// Is this function unsafe?
-    #[serde(rename = "unsafe")]
-    pub unsafe_: bool,
+    pub is_unsafe: bool,
     /// Is this function async?
-    #[serde(rename = "async")]
-    pub async_: bool,
+    pub is_async: bool,
     /// The ABI used by the function.
     pub abi: Abi,
 }
@@ -697,11 +705,11 @@ pub enum Abi {
 #[derive(Clone, Debug, PartialEq, Eq, Hash, Serialize, Deserialize)]
 pub struct Function {
     /// Information about the function signature, or declaration.
-    pub decl: FnDecl,
+    pub sig: FunctionSignature,
     /// Information about the function’s type parameters and `where` clauses.
     pub generics: Generics,
     /// Information about core properties of the function, e.g. whether it's `const`, its ABI, etc.
-    pub header: Header,
+    pub header: FunctionHeader,
     /// Whether the function has a body, i.e. an implementation.
     pub has_body: bool,
 }
@@ -784,7 +792,7 @@ pub enum GenericParamDefKind {
         /// In this example, the generic parameter named `impl Trait` (and which
         /// is bound by `Trait`) is synthetic, because it was not originally in
         /// the Rust source text.
-        synthetic: bool,
+        is_synthetic: bool,
     },
 
     /// Denotes a constant parameter.
@@ -894,7 +902,7 @@ pub enum TraitBoundModifier {
 }
 
 /// Either a type or a constant, usually stored as the right-hand side of an equation in places like
-/// [`TypeBinding`]
+/// [`AssocItemConstraint`]
 #[derive(Clone, Debug, PartialEq, Eq, Hash, Serialize, Deserialize)]
 #[serde(rename_all = "snake_case")]
 pub enum Term {
@@ -963,7 +971,7 @@ pub enum Type {
     /// A raw pointer type, e.g. `*mut u32`, `*const u8`, etc.
     RawPointer {
         /// This is `true` for `*mut _` and `false` for `*const _`.
-        mutable: bool,
+        is_mutable: bool,
         /// The type of the pointee.
         #[serde(rename = "type")]
         type_: Box<Type>,
@@ -973,7 +981,7 @@ pub enum Type {
         /// The name of the lifetime of the reference, if provided.
         lifetime: Option<String>,
         /// This is `true` for `&mut i32` and `false` for `&i32`
-        mutable: bool,
+        is_mutable: bool,
         /// The type of the pointee, e.g. the `i32` in `&'a mut i32`
         #[serde(rename = "type")]
         type_: Box<Type>,
@@ -1036,7 +1044,7 @@ pub struct Path {
 #[derive(Clone, Debug, PartialEq, Eq, Hash, Serialize, Deserialize)]
 pub struct FunctionPointer {
     /// The signature of the function.
-    pub decl: FnDecl,
+    pub sig: FunctionSignature,
     /// Used for Higher-Rank Trait Bounds (HRTBs)
     ///
     /// ```ignore (incomplete expression)
@@ -1045,12 +1053,12 @@ pub struct FunctionPointer {
     /// ```
     pub generic_params: Vec<GenericParamDef>,
     /// The core properties of the function, such as the ABI it conforms to, whether it's unsafe, etc.
-    pub header: Header,
+    pub header: FunctionHeader,
 }
 
 /// The signature of a function.
 #[derive(Clone, Debug, PartialEq, Eq, Hash, Serialize, Deserialize)]
-pub struct FnDecl {
+pub struct FunctionSignature {
     /// List of argument names and their type.
     ///
     /// Note that not all names will be valid identifiers, as some of
@@ -1063,7 +1071,7 @@ pub struct FnDecl {
     /// ```ignore (incomplete code)
     /// fn printf(fmt: &str, ...);
     /// ```
-    pub c_variadic: bool,
+    pub is_c_variadic: bool,
 }
 
 /// A `trait` declaration.
@@ -1127,10 +1135,10 @@ pub struct Impl {
     /// The list of associated items contained in this impl block.
     pub items: Vec<Id>,
     /// Whether this is a negative impl (e.g. `!Sized` or `!Send`).
-    pub negative: bool,
+    pub is_negative: bool,
     /// Whether this is an impl that’s implied by the compiler
     /// (for autotraits, e.g. `Send` or `Sync`).
-    pub synthetic: bool,
+    pub is_synthetic: bool,
     // FIXME: document this
     pub blanket_impl: Option<Type>,
 }
@@ -1138,7 +1146,7 @@ pub struct Impl {
 /// A `use` statement.
 #[derive(Clone, Debug, PartialEq, Eq, Hash, Serialize, Deserialize)]
 #[serde(rename_all = "snake_case")]
-pub struct Import {
+pub struct Use {
     /// The full path being imported.
     pub source: String,
     /// May be different from the last segment of `source` when renaming imports:
@@ -1150,7 +1158,7 @@ pub struct Import {
     /// ```
     pub id: Option<Id>,
     /// Whether this statement is a wildcard `use`, e.g. `use source::*;`
-    pub glob: bool,
+    pub is_glob: bool,
 }
 
 /// A procedural macro.
@@ -1205,7 +1213,7 @@ pub struct Static {
     #[serde(rename = "type")]
     pub type_: Type,
     /// This is `true` for mutable statics, declared as `static mut X: T = f();`
-    pub mutable: bool,
+    pub is_mutable: bool,
     /// The stringified expression for the initial value.
     ///
     /// It's not guaranteed that it'll match the actual source code for the initial value.
diff --git a/src/rustdoc-json-types/tests.rs b/src/rustdoc-json-types/tests.rs
index 1126d5f786f..b9363fcf1b7 100644
--- a/src/rustdoc-json-types/tests.rs
+++ b/src/rustdoc-json-types/tests.rs
@@ -4,7 +4,7 @@ use super::*;
 fn test_struct_info_roundtrip() {
     let s = ItemEnum::Struct(Struct {
         generics: Generics { params: vec![], where_predicates: vec![] },
-        kind: StructKind::Plain { fields: vec![], fields_stripped: false },
+        kind: StructKind::Plain { fields: vec![], has_stripped_fields: false },
         impls: vec![],
     });
 
@@ -23,7 +23,7 @@ fn test_struct_info_roundtrip() {
 fn test_union_info_roundtrip() {
     let u = ItemEnum::Union(Union {
         generics: Generics { params: vec![], where_predicates: vec![] },
-        fields_stripped: false,
+        has_stripped_fields: false,
         fields: vec![],
         impls: vec![],
     });
diff --git a/src/stage0 b/src/stage0
index dcc22673f13..1a603931792 100644
--- a/src/stage0
+++ b/src/stage0
@@ -14,448 +14,456 @@ nightly_branch=master
 # All changes below this comment will be overridden the next time the
 # tool is executed.
             
-compiler_date=2024-07-26
+compiler_date=2024-09-04
 compiler_version=beta
-rustfmt_date=2024-07-30
+rustfmt_date=2024-09-04
 rustfmt_version=nightly
 
-dist/2024-07-26/rustc-beta-aarch64-apple-darwin.tar.gz=a265d7831284938f090ef34cf2fb374f4d2b946c52829de8e53a06b7373c3d7e
-dist/2024-07-26/rustc-beta-aarch64-apple-darwin.tar.xz=f2420846f82f474892776f0bea176fbb2f1850a1fb9f51a1afe40ae6de8bbc17
-dist/2024-07-26/rustc-beta-aarch64-pc-windows-msvc.tar.gz=e3e0e2b8d1f8804cc2b5785765cc6807bbf7120fb010d74453097b5931c82e96
-dist/2024-07-26/rustc-beta-aarch64-pc-windows-msvc.tar.xz=1270aaea2f20a378e68d26518e1d34810ed346a4d4c272138c8aef67e3c386d5
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\ No newline at end of file
diff --git a/src/tools/clippy/clippy_lints/src/transmute/mod.rs b/src/tools/clippy/clippy_lints/src/transmute/mod.rs
index 373bf61d8ff..a2ae36cc484 100644
--- a/src/tools/clippy/clippy_lints/src/transmute/mod.rs
+++ b/src/tools/clippy/clippy_lints/src/transmute/mod.rs
@@ -619,10 +619,10 @@ impl<'tcx> LateLintPass<'tcx> for Transmute {
                 | transmute_ref_to_ref::check(cx, e, from_ty, to_ty, arg, const_context)
                 | transmute_ptr_to_ptr::check(cx, e, from_ty, to_ty, arg, &self.msrv)
                 | transmute_int_to_bool::check(cx, e, from_ty, to_ty, arg)
-                | transmute_int_to_float::check(cx, e, from_ty, to_ty, arg, const_context)
+                | transmute_int_to_float::check(cx, e, from_ty, to_ty, arg)
                 | transmute_int_to_non_zero::check(cx, e, from_ty, to_ty, arg)
-                | transmute_float_to_int::check(cx, e, from_ty, to_ty, arg, const_context)
-                | transmute_num_to_bytes::check(cx, e, from_ty, to_ty, arg, const_context)
+                | transmute_float_to_int::check(cx, e, from_ty, to_ty, arg)
+                | transmute_num_to_bytes::check(cx, e, from_ty, to_ty, arg)
                 | (unsound_collection_transmute::check(cx, e, from_ty, to_ty)
                     || transmute_undefined_repr::check(cx, e, from_ty, to_ty))
                 | (eager_transmute::check(cx, e, arg, from_ty, to_ty));
diff --git a/src/tools/clippy/clippy_lints/src/transmute/transmute_float_to_int.rs b/src/tools/clippy/clippy_lints/src/transmute/transmute_float_to_int.rs
index ab3bb5e1062..cb46109c27e 100644
--- a/src/tools/clippy/clippy_lints/src/transmute/transmute_float_to_int.rs
+++ b/src/tools/clippy/clippy_lints/src/transmute/transmute_float_to_int.rs
@@ -15,10 +15,9 @@ pub(super) fn check<'tcx>(
     from_ty: Ty<'tcx>,
     to_ty: Ty<'tcx>,
     mut arg: &'tcx Expr<'_>,
-    const_context: bool,
 ) -> bool {
     match (&from_ty.kind(), &to_ty.kind()) {
-        (ty::Float(float_ty), ty::Int(_) | ty::Uint(_)) if !const_context => {
+        (ty::Float(float_ty), ty::Int(_) | ty::Uint(_)) => {
             span_lint_and_then(
                 cx,
                 TRANSMUTE_FLOAT_TO_INT,
diff --git a/src/tools/clippy/clippy_lints/src/transmute/transmute_int_to_float.rs b/src/tools/clippy/clippy_lints/src/transmute/transmute_int_to_float.rs
index d51888e3097..e00fb90c307 100644
--- a/src/tools/clippy/clippy_lints/src/transmute/transmute_int_to_float.rs
+++ b/src/tools/clippy/clippy_lints/src/transmute/transmute_int_to_float.rs
@@ -14,10 +14,9 @@ pub(super) fn check<'tcx>(
     from_ty: Ty<'tcx>,
     to_ty: Ty<'tcx>,
     arg: &'tcx Expr<'_>,
-    const_context: bool,
 ) -> bool {
     match (&from_ty.kind(), &to_ty.kind()) {
-        (ty::Int(_) | ty::Uint(_), ty::Float(_)) if !const_context => {
+        (ty::Int(_) | ty::Uint(_), ty::Float(_)) => {
             span_lint_and_then(
                 cx,
                 TRANSMUTE_INT_TO_FLOAT,
diff --git a/src/tools/clippy/clippy_lints/src/transmute/transmute_num_to_bytes.rs b/src/tools/clippy/clippy_lints/src/transmute/transmute_num_to_bytes.rs
index 88b0ac5a368..362f2bb6960 100644
--- a/src/tools/clippy/clippy_lints/src/transmute/transmute_num_to_bytes.rs
+++ b/src/tools/clippy/clippy_lints/src/transmute/transmute_num_to_bytes.rs
@@ -14,18 +14,12 @@ pub(super) fn check<'tcx>(
     from_ty: Ty<'tcx>,
     to_ty: Ty<'tcx>,
     arg: &'tcx Expr<'_>,
-    const_context: bool,
 ) -> bool {
     match (&from_ty.kind(), &to_ty.kind()) {
         (ty::Int(_) | ty::Uint(_) | ty::Float(_), ty::Array(arr_ty, _)) => {
             if !matches!(arr_ty.kind(), ty::Uint(UintTy::U8)) {
                 return false;
             }
-            if matches!(from_ty.kind(), ty::Float(_)) && const_context {
-                // TODO: Remove when const_float_bits_conv is stabilized
-                // rust#72447
-                return false;
-            }
 
             span_lint_and_then(
                 cx,
diff --git a/src/tools/clippy/tests/ui/transmute.rs b/src/tools/clippy/tests/ui/transmute.rs
index 46629526367..eeea3f080b1 100644
--- a/src/tools/clippy/tests/ui/transmute.rs
+++ b/src/tools/clippy/tests/ui/transmute.rs
@@ -140,24 +140,32 @@ mod int_to_float {
 
     mod issue_5747 {
         const VALUE16: f16 = unsafe { std::mem::transmute(0_u16) };
+        //~^ ERROR: transmute from a `u16` to a `f16`
         const VALUE32: f32 = unsafe { std::mem::transmute(0_u32) };
+        //~^ ERROR: transmute from a `u32` to a `f32`
         const VALUE64: f64 = unsafe { std::mem::transmute(0_i64) };
+        //~^ ERROR: transmute from a `i64` to a `f64`
         const VALUE128: f128 = unsafe { std::mem::transmute(0_i128) };
+        //~^ ERROR: transmute from a `i128` to a `f128`
 
         const fn from_bits_16(v: i16) -> f16 {
             unsafe { std::mem::transmute(v) }
+            //~^ ERROR: transmute from a `i16` to a `f16`
         }
 
         const fn from_bits_32(v: i32) -> f32 {
             unsafe { std::mem::transmute(v) }
+            //~^ ERROR: transmute from a `i32` to a `f32`
         }
 
         const fn from_bits_64(v: u64) -> f64 {
             unsafe { std::mem::transmute(v) }
+            //~^ ERROR: transmute from a `u64` to a `f64`
         }
 
         const fn from_bits_128(v: u128) -> f128 {
             unsafe { std::mem::transmute(v) }
+            //~^ ERROR: transmute from a `u128` to a `f128`
         }
     }
 }
@@ -205,9 +213,13 @@ mod num_to_bytes {
             //~^ ERROR: transmute from a `i128` to a `[u8; 16]`
 
             let _: [u8; 2] = std::mem::transmute(0.0f16);
+            //~^ ERROR: transmute from a `f16` to a `[u8; 2]`
             let _: [u8; 4] = std::mem::transmute(0.0f32);
+            //~^ ERROR: transmute from a `f32` to a `[u8; 4]`
             let _: [u8; 8] = std::mem::transmute(0.0f64);
+            //~^ ERROR: transmute from a `f64` to a `[u8; 8]`
             let _: [u8; 16] = std::mem::transmute(0.0f128);
+            //~^ ERROR: transmute from a `f128` to a `[u8; 16]`
         }
     }
 }
diff --git a/src/tools/clippy/tests/ui/transmute.stderr b/src/tools/clippy/tests/ui/transmute.stderr
index 0072f62962a..41a10f381dc 100644
--- a/src/tools/clippy/tests/ui/transmute.stderr
+++ b/src/tools/clippy/tests/ui/transmute.stderr
@@ -148,8 +148,56 @@ error: transmute from a `i128` to a `f128`
 LL |         let _: f128 = unsafe { std::mem::transmute(0_i128) };
    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `f128::from_bits(0_i128 as u128)`
 
+error: transmute from a `u16` to a `f16`
+  --> tests/ui/transmute.rs:142:39
+   |
+LL |         const VALUE16: f16 = unsafe { std::mem::transmute(0_u16) };
+   |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `f16::from_bits(0_u16)`
+
+error: transmute from a `u32` to a `f32`
+  --> tests/ui/transmute.rs:144:39
+   |
+LL |         const VALUE32: f32 = unsafe { std::mem::transmute(0_u32) };
+   |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `f32::from_bits(0_u32)`
+
+error: transmute from a `i64` to a `f64`
+  --> tests/ui/transmute.rs:146:39
+   |
+LL |         const VALUE64: f64 = unsafe { std::mem::transmute(0_i64) };
+   |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `f64::from_bits(0_i64 as u64)`
+
+error: transmute from a `i128` to a `f128`
+  --> tests/ui/transmute.rs:148:41
+   |
+LL |         const VALUE128: f128 = unsafe { std::mem::transmute(0_i128) };
+   |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `f128::from_bits(0_i128 as u128)`
+
+error: transmute from a `i16` to a `f16`
+  --> tests/ui/transmute.rs:152:22
+   |
+LL |             unsafe { std::mem::transmute(v) }
+   |                      ^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `f16::from_bits(v as u16)`
+
+error: transmute from a `i32` to a `f32`
+  --> tests/ui/transmute.rs:157:22
+   |
+LL |             unsafe { std::mem::transmute(v) }
+   |                      ^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `f32::from_bits(v as u32)`
+
+error: transmute from a `u64` to a `f64`
+  --> tests/ui/transmute.rs:162:22
+   |
+LL |             unsafe { std::mem::transmute(v) }
+   |                      ^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `f64::from_bits(v)`
+
+error: transmute from a `u128` to a `f128`
+  --> tests/ui/transmute.rs:167:22
+   |
+LL |             unsafe { std::mem::transmute(v) }
+   |                      ^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `f128::from_bits(v)`
+
 error: transmute from a `u8` to a `[u8; 1]`
-  --> tests/ui/transmute.rs:168:30
+  --> tests/ui/transmute.rs:176:30
    |
 LL |             let _: [u8; 1] = std::mem::transmute(0u8);
    |                              ^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using `to_ne_bytes()`: `0u8.to_ne_bytes()`
@@ -158,97 +206,121 @@ LL |             let _: [u8; 1] = std::mem::transmute(0u8);
    = help: to override `-D warnings` add `#[allow(clippy::transmute_num_to_bytes)]`
 
 error: transmute from a `u32` to a `[u8; 4]`
-  --> tests/ui/transmute.rs:171:30
+  --> tests/ui/transmute.rs:179:30
    |
 LL |             let _: [u8; 4] = std::mem::transmute(0u32);
    |                              ^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using `to_ne_bytes()`: `0u32.to_ne_bytes()`
 
 error: transmute from a `u128` to a `[u8; 16]`
-  --> tests/ui/transmute.rs:173:31
+  --> tests/ui/transmute.rs:181:31
    |
 LL |             let _: [u8; 16] = std::mem::transmute(0u128);
    |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using `to_ne_bytes()`: `0u128.to_ne_bytes()`
 
 error: transmute from a `i8` to a `[u8; 1]`
-  --> tests/ui/transmute.rs:175:30
+  --> tests/ui/transmute.rs:183:30
    |
 LL |             let _: [u8; 1] = std::mem::transmute(0i8);
    |                              ^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using `to_ne_bytes()`: `0i8.to_ne_bytes()`
 
 error: transmute from a `i32` to a `[u8; 4]`
-  --> tests/ui/transmute.rs:177:30
+  --> tests/ui/transmute.rs:185:30
    |
 LL |             let _: [u8; 4] = std::mem::transmute(0i32);
    |                              ^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using `to_ne_bytes()`: `0i32.to_ne_bytes()`
 
 error: transmute from a `i128` to a `[u8; 16]`
-  --> tests/ui/transmute.rs:179:31
+  --> tests/ui/transmute.rs:187:31
    |
 LL |             let _: [u8; 16] = std::mem::transmute(0i128);
    |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using `to_ne_bytes()`: `0i128.to_ne_bytes()`
 
 error: transmute from a `f16` to a `[u8; 2]`
-  --> tests/ui/transmute.rs:182:30
+  --> tests/ui/transmute.rs:190:30
    |
 LL |             let _: [u8; 2] = std::mem::transmute(0.0f16);
    |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using `to_ne_bytes()`: `0.0f16.to_ne_bytes()`
 
 error: transmute from a `f32` to a `[u8; 4]`
-  --> tests/ui/transmute.rs:184:30
+  --> tests/ui/transmute.rs:192:30
    |
 LL |             let _: [u8; 4] = std::mem::transmute(0.0f32);
    |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using `to_ne_bytes()`: `0.0f32.to_ne_bytes()`
 
 error: transmute from a `f64` to a `[u8; 8]`
-  --> tests/ui/transmute.rs:186:30
+  --> tests/ui/transmute.rs:194:30
    |
 LL |             let _: [u8; 8] = std::mem::transmute(0.0f64);
    |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using `to_ne_bytes()`: `0.0f64.to_ne_bytes()`
 
 error: transmute from a `f128` to a `[u8; 16]`
-  --> tests/ui/transmute.rs:188:31
+  --> tests/ui/transmute.rs:196:31
    |
 LL |             let _: [u8; 16] = std::mem::transmute(0.0f128);
    |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using `to_ne_bytes()`: `0.0f128.to_ne_bytes()`
 
 error: transmute from a `u8` to a `[u8; 1]`
-  --> tests/ui/transmute.rs:194:30
+  --> tests/ui/transmute.rs:202:30
    |
 LL |             let _: [u8; 1] = std::mem::transmute(0u8);
    |                              ^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using `to_ne_bytes()`: `0u8.to_ne_bytes()`
 
 error: transmute from a `u32` to a `[u8; 4]`
-  --> tests/ui/transmute.rs:196:30
+  --> tests/ui/transmute.rs:204:30
    |
 LL |             let _: [u8; 4] = std::mem::transmute(0u32);
    |                              ^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using `to_ne_bytes()`: `0u32.to_ne_bytes()`
 
 error: transmute from a `u128` to a `[u8; 16]`
-  --> tests/ui/transmute.rs:198:31
+  --> tests/ui/transmute.rs:206:31
    |
 LL |             let _: [u8; 16] = std::mem::transmute(0u128);
    |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using `to_ne_bytes()`: `0u128.to_ne_bytes()`
 
 error: transmute from a `i8` to a `[u8; 1]`
-  --> tests/ui/transmute.rs:200:30
+  --> tests/ui/transmute.rs:208:30
    |
 LL |             let _: [u8; 1] = std::mem::transmute(0i8);
    |                              ^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using `to_ne_bytes()`: `0i8.to_ne_bytes()`
 
 error: transmute from a `i32` to a `[u8; 4]`
-  --> tests/ui/transmute.rs:202:30
+  --> tests/ui/transmute.rs:210:30
    |
 LL |             let _: [u8; 4] = std::mem::transmute(0i32);
    |                              ^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using `to_ne_bytes()`: `0i32.to_ne_bytes()`
 
 error: transmute from a `i128` to a `[u8; 16]`
-  --> tests/ui/transmute.rs:204:31
+  --> tests/ui/transmute.rs:212:31
    |
 LL |             let _: [u8; 16] = std::mem::transmute(0i128);
    |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using `to_ne_bytes()`: `0i128.to_ne_bytes()`
 
+error: transmute from a `f16` to a `[u8; 2]`
+  --> tests/ui/transmute.rs:215:30
+   |
+LL |             let _: [u8; 2] = std::mem::transmute(0.0f16);
+   |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using `to_ne_bytes()`: `0.0f16.to_ne_bytes()`
+
+error: transmute from a `f32` to a `[u8; 4]`
+  --> tests/ui/transmute.rs:217:30
+   |
+LL |             let _: [u8; 4] = std::mem::transmute(0.0f32);
+   |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using `to_ne_bytes()`: `0.0f32.to_ne_bytes()`
+
+error: transmute from a `f64` to a `[u8; 8]`
+  --> tests/ui/transmute.rs:219:30
+   |
+LL |             let _: [u8; 8] = std::mem::transmute(0.0f64);
+   |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using `to_ne_bytes()`: `0.0f64.to_ne_bytes()`
+
+error: transmute from a `f128` to a `[u8; 16]`
+  --> tests/ui/transmute.rs:221:31
+   |
+LL |             let _: [u8; 16] = std::mem::transmute(0.0f128);
+   |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using `to_ne_bytes()`: `0.0f128.to_ne_bytes()`
+
 error: transmute from a `&[u8]` to a `&str`
-  --> tests/ui/transmute.rs:218:28
+  --> tests/ui/transmute.rs:230:28
    |
 LL |     let _: &str = unsafe { std::mem::transmute(B) };
    |                            ^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `std::str::from_utf8(B).unwrap()`
@@ -257,16 +329,16 @@ LL |     let _: &str = unsafe { std::mem::transmute(B) };
    = help: to override `-D warnings` add `#[allow(clippy::transmute_bytes_to_str)]`
 
 error: transmute from a `&mut [u8]` to a `&mut str`
-  --> tests/ui/transmute.rs:221:32
+  --> tests/ui/transmute.rs:233:32
    |
 LL |     let _: &mut str = unsafe { std::mem::transmute(mb) };
    |                                ^^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `std::str::from_utf8_mut(mb).unwrap()`
 
 error: transmute from a `&[u8]` to a `&str`
-  --> tests/ui/transmute.rs:223:30
+  --> tests/ui/transmute.rs:235:30
    |
 LL |     const _: &str = unsafe { std::mem::transmute(B) };
    |                              ^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `std::str::from_utf8_unchecked(B)`
 
-error: aborting due to 42 previous errors
+error: aborting due to 54 previous errors
 
diff --git a/src/tools/clippy/tests/ui/transmute_float_to_int.fixed b/src/tools/clippy/tests/ui/transmute_float_to_int.fixed
index 4361a7407d1..83814ca43b9 100644
--- a/src/tools/clippy/tests/ui/transmute_float_to_int.fixed
+++ b/src/tools/clippy/tests/ui/transmute_float_to_int.fixed
@@ -1,7 +1,7 @@
 #![warn(clippy::transmute_float_to_int)]
 #![allow(clippy::missing_transmute_annotations)]
-#![feature(f128)]
-#![feature(f16)]
+#![feature(f128, f128_const)]
+#![feature(f16, f16_const)]
 
 fn float_to_int() {
     let _: u32 = unsafe { 1f32.to_bits() };
@@ -20,25 +20,33 @@ fn float_to_int() {
 }
 
 mod issue_5747 {
-    const VALUE16: i16 = unsafe { std::mem::transmute(1f16) };
-    const VALUE32: i32 = unsafe { std::mem::transmute(1f32) };
-    const VALUE64: u64 = unsafe { std::mem::transmute(1f64) };
-    const VALUE128: u128 = unsafe { std::mem::transmute(1f128) };
+    const VALUE16: i16 = unsafe { 1f16.to_bits() as i16 };
+    //~^ ERROR: transmute from a `f16` to a `i16`
+    const VALUE32: i32 = unsafe { 1f32.to_bits() as i32 };
+    //~^ ERROR: transmute from a `f32` to a `i32`
+    const VALUE64: u64 = unsafe { 1f64.to_bits() };
+    //~^ ERROR: transmute from a `f64` to a `u64`
+    const VALUE128: u128 = unsafe { 1f128.to_bits() };
+    //~^ ERROR: transmute from a `f128` to a `u128`
 
     const fn to_bits_16(v: f16) -> u16 {
-        unsafe { std::mem::transmute(v) }
+        unsafe { v.to_bits() }
+        //~^ ERROR: transmute from a `f16` to a `u16`
     }
 
     const fn to_bits_32(v: f32) -> u32 {
-        unsafe { std::mem::transmute(v) }
+        unsafe { v.to_bits() }
+        //~^ ERROR: transmute from a `f32` to a `u32`
     }
 
     const fn to_bits_64(v: f64) -> i64 {
-        unsafe { std::mem::transmute(v) }
+        unsafe { v.to_bits() as i64 }
+        //~^ ERROR: transmute from a `f64` to a `i64`
     }
 
     const fn to_bits_128(v: f128) -> i128 {
-        unsafe { std::mem::transmute(v) }
+        unsafe { v.to_bits() as i128 }
+        //~^ ERROR: transmute from a `f128` to a `i128`
     }
 }
 
diff --git a/src/tools/clippy/tests/ui/transmute_float_to_int.rs b/src/tools/clippy/tests/ui/transmute_float_to_int.rs
index 363ce0bcb16..64d6e917203 100644
--- a/src/tools/clippy/tests/ui/transmute_float_to_int.rs
+++ b/src/tools/clippy/tests/ui/transmute_float_to_int.rs
@@ -1,7 +1,7 @@
 #![warn(clippy::transmute_float_to_int)]
 #![allow(clippy::missing_transmute_annotations)]
-#![feature(f128)]
-#![feature(f16)]
+#![feature(f128, f128_const)]
+#![feature(f16, f16_const)]
 
 fn float_to_int() {
     let _: u32 = unsafe { std::mem::transmute(1f32) };
@@ -21,24 +21,32 @@ fn float_to_int() {
 
 mod issue_5747 {
     const VALUE16: i16 = unsafe { std::mem::transmute(1f16) };
+    //~^ ERROR: transmute from a `f16` to a `i16`
     const VALUE32: i32 = unsafe { std::mem::transmute(1f32) };
+    //~^ ERROR: transmute from a `f32` to a `i32`
     const VALUE64: u64 = unsafe { std::mem::transmute(1f64) };
+    //~^ ERROR: transmute from a `f64` to a `u64`
     const VALUE128: u128 = unsafe { std::mem::transmute(1f128) };
+    //~^ ERROR: transmute from a `f128` to a `u128`
 
     const fn to_bits_16(v: f16) -> u16 {
         unsafe { std::mem::transmute(v) }
+        //~^ ERROR: transmute from a `f16` to a `u16`
     }
 
     const fn to_bits_32(v: f32) -> u32 {
         unsafe { std::mem::transmute(v) }
+        //~^ ERROR: transmute from a `f32` to a `u32`
     }
 
     const fn to_bits_64(v: f64) -> i64 {
         unsafe { std::mem::transmute(v) }
+        //~^ ERROR: transmute from a `f64` to a `i64`
     }
 
     const fn to_bits_128(v: f128) -> i128 {
         unsafe { std::mem::transmute(v) }
+        //~^ ERROR: transmute from a `f128` to a `i128`
     }
 }
 
diff --git a/src/tools/clippy/tests/ui/transmute_float_to_int.stderr b/src/tools/clippy/tests/ui/transmute_float_to_int.stderr
index 9cac75f72cd..0cabab58ab0 100644
--- a/src/tools/clippy/tests/ui/transmute_float_to_int.stderr
+++ b/src/tools/clippy/tests/ui/transmute_float_to_int.stderr
@@ -37,5 +37,53 @@ error: transmute from a `f64` to a `u64`
 LL |     let _: u64 = unsafe { std::mem::transmute(-1.0) };
    |                           ^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `(-1.0f64).to_bits()`
 
-error: aborting due to 6 previous errors
+error: transmute from a `f16` to a `i16`
+  --> tests/ui/transmute_float_to_int.rs:23:35
+   |
+LL |     const VALUE16: i16 = unsafe { std::mem::transmute(1f16) };
+   |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `1f16.to_bits() as i16`
+
+error: transmute from a `f32` to a `i32`
+  --> tests/ui/transmute_float_to_int.rs:25:35
+   |
+LL |     const VALUE32: i32 = unsafe { std::mem::transmute(1f32) };
+   |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `1f32.to_bits() as i32`
+
+error: transmute from a `f64` to a `u64`
+  --> tests/ui/transmute_float_to_int.rs:27:35
+   |
+LL |     const VALUE64: u64 = unsafe { std::mem::transmute(1f64) };
+   |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `1f64.to_bits()`
+
+error: transmute from a `f128` to a `u128`
+  --> tests/ui/transmute_float_to_int.rs:29:37
+   |
+LL |     const VALUE128: u128 = unsafe { std::mem::transmute(1f128) };
+   |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `1f128.to_bits()`
+
+error: transmute from a `f16` to a `u16`
+  --> tests/ui/transmute_float_to_int.rs:33:18
+   |
+LL |         unsafe { std::mem::transmute(v) }
+   |                  ^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `v.to_bits()`
+
+error: transmute from a `f32` to a `u32`
+  --> tests/ui/transmute_float_to_int.rs:38:18
+   |
+LL |         unsafe { std::mem::transmute(v) }
+   |                  ^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `v.to_bits()`
+
+error: transmute from a `f64` to a `i64`
+  --> tests/ui/transmute_float_to_int.rs:43:18
+   |
+LL |         unsafe { std::mem::transmute(v) }
+   |                  ^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `v.to_bits() as i64`
+
+error: transmute from a `f128` to a `i128`
+  --> tests/ui/transmute_float_to_int.rs:48:18
+   |
+LL |         unsafe { std::mem::transmute(v) }
+   |                  ^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `v.to_bits() as i128`
+
+error: aborting due to 14 previous errors
 
diff --git a/src/tools/jsondoclint/src/item_kind.rs b/src/tools/jsondoclint/src/item_kind.rs
index 7d6ec475bad..51146831efa 100644
--- a/src/tools/jsondoclint/src/item_kind.rs
+++ b/src/tools/jsondoclint/src/item_kind.rs
@@ -5,7 +5,7 @@ use rustdoc_json_types::{Item, ItemEnum, ItemKind, ItemSummary};
 pub(crate) enum Kind {
     Module,
     ExternCrate,
-    Import,
+    Use,
     Struct,
     StructField,
     Union,
@@ -18,7 +18,7 @@ pub(crate) enum Kind {
     TraitAlias,
     Impl,
     Static,
-    ForeignType,
+    ExternType,
     Macro,
     ProcAttribute,
     ProcDerive,
@@ -36,7 +36,7 @@ impl Kind {
         match self {
             Module => true,
             ExternCrate => true,
-            Import => true,
+            Use => true,
             Union => true,
             Struct => true,
             Enum => true,
@@ -50,7 +50,7 @@ impl Kind {
             Macro => true,
             ProcMacro => true,
             Primitive => true,
-            ForeignType => true,
+            ExternType => true,
 
             // FIXME(adotinthevoid): I'm not sure if these are correct
             Keyword => false,
@@ -69,7 +69,7 @@ impl Kind {
     pub fn can_appear_in_import(self) -> bool {
         match self {
             Kind::Variant => true,
-            Kind::Import => false,
+            Kind::Use => false,
             other => other.can_appear_in_mod(),
         }
     }
@@ -90,7 +90,7 @@ impl Kind {
 
             Kind::Module => false,
             Kind::ExternCrate => false,
-            Kind::Import => false,
+            Kind::Use => false,
             Kind::Struct => false,
             Kind::StructField => false,
             Kind::Union => false,
@@ -102,7 +102,7 @@ impl Kind {
             Kind::TraitAlias => false,
             Kind::Impl => false,
             Kind::Static => false,
-            Kind::ForeignType => false,
+            Kind::ExternType => false,
             Kind::Macro => false,
             Kind::ProcAttribute => false,
             Kind::ProcDerive => false,
@@ -135,7 +135,7 @@ impl Kind {
         use Kind::*;
         match i.inner {
             ItemEnum::Module(_) => Module,
-            ItemEnum::Import(_) => Import,
+            ItemEnum::Use(_) => Use,
             ItemEnum::Union(_) => Union,
             ItemEnum::Struct(_) => Struct,
             ItemEnum::StructField(_) => StructField,
@@ -151,7 +151,7 @@ impl Kind {
             ItemEnum::Macro(_) => Macro,
             ItemEnum::ProcMacro(_) => ProcMacro,
             ItemEnum::Primitive(_) => Primitive,
-            ItemEnum::ForeignType => ForeignType,
+            ItemEnum::ExternType => ExternType,
             ItemEnum::ExternCrate { .. } => ExternCrate,
             ItemEnum::AssocConst { .. } => AssocConst,
             ItemEnum::AssocType { .. } => AssocType,
@@ -166,10 +166,10 @@ impl Kind {
             ItemKind::Constant => Constant,
             ItemKind::Enum => Enum,
             ItemKind::ExternCrate => ExternCrate,
-            ItemKind::ForeignType => ForeignType,
+            ItemKind::ExternType => ExternType,
             ItemKind::Function => Function,
             ItemKind::Impl => Impl,
-            ItemKind::Import => Import,
+            ItemKind::Use => Use,
             ItemKind::Keyword => Keyword,
             ItemKind::Macro => Macro,
             ItemKind::Module => Module,
diff --git a/src/tools/jsondoclint/src/validator.rs b/src/tools/jsondoclint/src/validator.rs
index 0ffb96bef29..10ab62cb24a 100644
--- a/src/tools/jsondoclint/src/validator.rs
+++ b/src/tools/jsondoclint/src/validator.rs
@@ -2,10 +2,11 @@ use std::collections::HashSet;
 use std::hash::Hash;
 
 use rustdoc_json_types::{
-    Constant, Crate, DynTrait, Enum, FnDecl, Function, FunctionPointer, GenericArg, GenericArgs,
-    GenericBound, GenericParamDef, Generics, Id, Impl, Import, ItemEnum, ItemSummary, Module, Path,
-    Primitive, ProcMacro, Static, Struct, StructKind, Term, Trait, TraitAlias, Type, TypeAlias,
-    TypeBinding, TypeBindingKind, Union, Variant, VariantKind, WherePredicate,
+    AssocItemConstraint, AssocItemConstraintKind, Constant, Crate, DynTrait, Enum, Function,
+    FunctionPointer, FunctionSignature, GenericArg, GenericArgs, GenericBound, GenericParamDef,
+    Generics, Id, Impl, ItemEnum, ItemSummary, Module, Path, Primitive, ProcMacro, Static, Struct,
+    StructKind, Term, Trait, TraitAlias, Type, TypeAlias, Union, Use, Variant, VariantKind,
+    WherePredicate,
 };
 use serde_json::Value;
 
@@ -90,7 +91,7 @@ impl<'a> Validator<'a> {
             item.links.values().for_each(|id| self.add_any_id(id));
 
             match &item.inner {
-                ItemEnum::Import(x) => self.check_import(x),
+                ItemEnum::Use(x) => self.check_use(x),
                 ItemEnum::Union(x) => self.check_union(x),
                 ItemEnum::Struct(x) => self.check_struct(x),
                 ItemEnum::StructField(x) => self.check_struct_field(x),
@@ -106,18 +107,18 @@ impl<'a> Validator<'a> {
                     self.check_constant(const_);
                 }
                 ItemEnum::Static(x) => self.check_static(x),
-                ItemEnum::ForeignType => {} // nop
+                ItemEnum::ExternType => {} // nop
                 ItemEnum::Macro(x) => self.check_macro(x),
                 ItemEnum::ProcMacro(x) => self.check_proc_macro(x),
                 ItemEnum::Primitive(x) => self.check_primitive_type(x),
                 ItemEnum::Module(x) => self.check_module(x, id),
                 // FIXME: Why don't these have their own structs?
                 ItemEnum::ExternCrate { .. } => {}
-                ItemEnum::AssocConst { type_, default: _ } => self.check_type(type_),
-                ItemEnum::AssocType { generics, bounds, default } => {
+                ItemEnum::AssocConst { type_, value: _ } => self.check_type(type_),
+                ItemEnum::AssocType { generics, bounds, type_ } => {
                     self.check_generics(generics);
                     bounds.iter().for_each(|b| self.check_generic_bound(b));
-                    if let Some(ty) = default {
+                    if let Some(ty) = type_ {
                         self.check_type(ty);
                     }
                 }
@@ -133,8 +134,8 @@ impl<'a> Validator<'a> {
         module.items.iter().for_each(|i| self.add_mod_item_id(i));
     }
 
-    fn check_import(&mut self, x: &'a Import) {
-        if x.glob {
+    fn check_use(&mut self, x: &'a Use) {
+        if x.is_glob {
             self.add_glob_import_item_id(x.id.as_ref().unwrap());
         } else if let Some(id) = &x.id {
             self.add_import_item_id(id);
@@ -152,7 +153,7 @@ impl<'a> Validator<'a> {
         match &x.kind {
             StructKind::Unit => {}
             StructKind::Tuple(fields) => fields.iter().flatten().for_each(|f| self.add_field_id(f)),
-            StructKind::Plain { fields, fields_stripped: _ } => {
+            StructKind::Plain { fields, has_stripped_fields: _ } => {
                 fields.iter().for_each(|f| self.add_field_id(f))
             }
         }
@@ -187,7 +188,7 @@ impl<'a> Validator<'a> {
         match kind {
             VariantKind::Plain => {}
             VariantKind::Tuple(tys) => tys.iter().flatten().for_each(|t| self.add_field_id(t)),
-            VariantKind::Struct { fields, fields_stripped: _ } => {
+            VariantKind::Struct { fields, has_stripped_fields: _ } => {
                 fields.iter().for_each(|f| self.add_field_id(f))
             }
         }
@@ -195,7 +196,7 @@ impl<'a> Validator<'a> {
 
     fn check_function(&mut self, x: &'a Function) {
         self.check_generics(&x.generics);
-        self.check_fn_decl(&x.decl);
+        self.check_function_signature(&x.sig);
     }
 
     fn check_trait(&mut self, x: &'a Trait, id: &Id) {
@@ -267,8 +268,8 @@ impl<'a> Validator<'a> {
             Type::Array { type_, len: _ } => self.check_type(&**type_),
             Type::ImplTrait(bounds) => bounds.iter().for_each(|b| self.check_generic_bound(b)),
             Type::Infer => {}
-            Type::RawPointer { mutable: _, type_ } => self.check_type(&**type_),
-            Type::BorrowedRef { lifetime: _, mutable: _, type_ } => self.check_type(&**type_),
+            Type::RawPointer { is_mutable: _, type_ } => self.check_type(&**type_),
+            Type::BorrowedRef { lifetime: _, is_mutable: _, type_ } => self.check_type(&**type_),
             Type::QualifiedPath { name: _, args, self_type, trait_ } => {
                 self.check_generic_args(&**args);
                 self.check_type(&**self_type);
@@ -279,7 +280,7 @@ impl<'a> Validator<'a> {
         }
     }
 
-    fn check_fn_decl(&mut self, x: &'a FnDecl) {
+    fn check_function_signature(&mut self, x: &'a FunctionSignature) {
         x.inputs.iter().for_each(|(_name, ty)| self.check_type(ty));
         if let Some(output) = &x.output {
             self.check_type(output);
@@ -309,9 +310,9 @@ impl<'a> Validator<'a> {
 
     fn check_generic_args(&mut self, x: &'a GenericArgs) {
         match x {
-            GenericArgs::AngleBracketed { args, bindings } => {
+            GenericArgs::AngleBracketed { args, constraints } => {
                 args.iter().for_each(|arg| self.check_generic_arg(arg));
-                bindings.iter().for_each(|bind| self.check_type_binding(bind));
+                constraints.iter().for_each(|bind| self.check_assoc_item_constraint(bind));
             }
             GenericArgs::Parenthesized { inputs, output } => {
                 inputs.iter().for_each(|ty| self.check_type(ty));
@@ -325,7 +326,7 @@ impl<'a> Validator<'a> {
     fn check_generic_param_def(&mut self, gpd: &'a GenericParamDef) {
         match &gpd.kind {
             rustdoc_json_types::GenericParamDefKind::Lifetime { outlives: _ } => {}
-            rustdoc_json_types::GenericParamDefKind::Type { bounds, default, synthetic: _ } => {
+            rustdoc_json_types::GenericParamDefKind::Type { bounds, default, is_synthetic: _ } => {
                 bounds.iter().for_each(|b| self.check_generic_bound(b));
                 if let Some(ty) = default {
                     self.check_type(ty);
@@ -346,11 +347,11 @@ impl<'a> Validator<'a> {
         }
     }
 
-    fn check_type_binding(&mut self, bind: &'a TypeBinding) {
+    fn check_assoc_item_constraint(&mut self, bind: &'a AssocItemConstraint) {
         self.check_generic_args(&bind.args);
         match &bind.binding {
-            TypeBindingKind::Equality(term) => self.check_term(term),
-            TypeBindingKind::Constraint(bounds) => {
+            AssocItemConstraintKind::Equality(term) => self.check_term(term),
+            AssocItemConstraintKind::Constraint(bounds) => {
                 bounds.iter().for_each(|b| self.check_generic_bound(b))
             }
         }
@@ -388,7 +389,7 @@ impl<'a> Validator<'a> {
     }
 
     fn check_function_pointer(&mut self, fp: &'a FunctionPointer) {
-        self.check_fn_decl(&fp.decl);
+        self.check_function_signature(&fp.sig);
         fp.generic_params.iter().for_each(|gpd| self.check_generic_param_def(gpd));
     }
 
diff --git a/src/tools/miri/src/eval.rs b/src/tools/miri/src/eval.rs
index bb623c66892..0850a8f24d9 100644
--- a/src/tools/miri/src/eval.rs
+++ b/src/tools/miri/src/eval.rs
@@ -458,14 +458,7 @@ pub fn eval_entry<'tcx>(
         panic::resume_unwind(panic_payload)
     });
     // `Ok` can never happen.
-    #[cfg(not(bootstrap))]
     let Err(res) = res;
-    #[cfg(bootstrap)]
-    let res = match res {
-        Err(res) => res,
-        // `Ok` can never happen
-        Ok(never) => match never {},
-    };
 
     // Machine cleanup. Only do this if all threads have terminated; threads that are still running
     // might cause Stacked Borrows errors (https://github.com/rust-lang/miri/issues/2396).
diff --git a/src/tools/miri/tests/pass/async-niche-aliasing.rs b/src/tools/miri/tests/pass/async-niche-aliasing.rs
new file mode 100644
index 00000000000..7f19afb33e4
--- /dev/null
+++ b/src/tools/miri/tests/pass/async-niche-aliasing.rs
@@ -0,0 +1,66 @@
+//@revisions: stack tree
+//@[tree]compile-flags: -Zmiri-tree-borrows
+
+use std::{
+    future::Future,
+    pin::Pin,
+    sync::Arc,
+    task::{Context, Poll, Wake},
+    mem::MaybeUninit,
+};
+
+struct ThingAdder<'a> {
+    // Using `MaybeUninit` to ensure there are no niches here.
+    thing: MaybeUninit<&'a mut String>,
+}
+
+impl Future for ThingAdder<'_> {
+    type Output = ();
+
+    fn poll(self: Pin<&mut Self>, _cx: &mut Context<'_>) -> Poll<Self::Output> {
+        unsafe {
+            **self.get_unchecked_mut().thing.assume_init_mut() += ", world";
+        }
+        Poll::Pending
+    }
+}
+
+fn main() {
+    let mut thing = "hello".to_owned();
+    // This future has (at least) two fields, a String (`thing`) and a ThingAdder pointing to that string.
+    let fut = async move { ThingAdder { thing: MaybeUninit::new(&mut thing) }.await };
+
+    let mut fut = MaybeDone::Future(fut);
+    let mut fut = unsafe { Pin::new_unchecked(&mut fut) };
+
+    let waker = Arc::new(DummyWaker).into();
+    let mut ctx = Context::from_waker(&waker);
+    // This ends up reading the discriminant of the `MaybeDone`. If that is stored inside the
+    // `thing: String` as a niche optimization, that causes aliasing conflicts with the reference
+    // stored in `ThingAdder`.
+    assert_eq!(fut.as_mut().poll(&mut ctx), Poll::Pending);
+    assert_eq!(fut.as_mut().poll(&mut ctx), Poll::Pending);
+}
+
+struct DummyWaker;
+
+impl Wake for DummyWaker {
+    fn wake(self: Arc<Self>) {}
+}
+
+pub enum MaybeDone<F: Future> {
+    Future(F),
+    Done,
+}
+impl<F: Future<Output = ()>> Future for MaybeDone<F> {
+    type Output = ();
+
+    fn poll(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output> {
+        unsafe {
+            match *self.as_mut().get_unchecked_mut() {
+                MaybeDone::Future(ref mut f) => Pin::new_unchecked(f).poll(cx),
+                MaybeDone::Done => unreachable!(),
+            }
+        }
+    }
+}
diff --git a/src/tools/run-make-support/src/external_deps/llvm.rs b/src/tools/run-make-support/src/external_deps/llvm.rs
index 2522c4aeb93..16c4251998f 100644
--- a/src/tools/run-make-support/src/external_deps/llvm.rs
+++ b/src/tools/run-make-support/src/external_deps/llvm.rs
@@ -110,6 +110,13 @@ pub struct LlvmDwarfdump {
     cmd: Command,
 }
 
+/// A `llvm-pdbutil` invocation builder.
+#[derive(Debug)]
+#[must_use]
+pub struct LlvmPdbutil {
+    cmd: Command,
+}
+
 crate::macros::impl_common_helpers!(LlvmReadobj);
 crate::macros::impl_common_helpers!(LlvmProfdata);
 crate::macros::impl_common_helpers!(LlvmFilecheck);
@@ -118,6 +125,7 @@ crate::macros::impl_common_helpers!(LlvmAr);
 crate::macros::impl_common_helpers!(LlvmNm);
 crate::macros::impl_common_helpers!(LlvmBcanalyzer);
 crate::macros::impl_common_helpers!(LlvmDwarfdump);
+crate::macros::impl_common_helpers!(LlvmPdbutil);
 
 /// Generate the path to the bin directory of LLVM.
 #[must_use]
@@ -360,3 +368,19 @@ impl LlvmDwarfdump {
         self
     }
 }
+
+impl LlvmPdbutil {
+    /// Construct a new `llvm-pdbutil` invocation. This assumes that `llvm-pdbutil` is available
+    /// at `$LLVM_BIN_DIR/llvm-pdbutil`.
+    pub fn new() -> Self {
+        let llvm_pdbutil = llvm_bin_dir().join("llvm-pdbutil");
+        let cmd = Command::new(llvm_pdbutil);
+        Self { cmd }
+    }
+
+    /// Provide an input file.
+    pub fn input<P: AsRef<Path>>(&mut self, path: P) -> &mut Self {
+        self.cmd.arg(path.as_ref());
+        self
+    }
+}
diff --git a/src/tools/rust-analyzer/crates/parser/src/lexed_str.rs b/src/tools/rust-analyzer/crates/parser/src/lexed_str.rs
index ff924830ae0..3590486bd29 100644
--- a/src/tools/rust-analyzer/crates/parser/src/lexed_str.rs
+++ b/src/tools/rust-analyzer/crates/parser/src/lexed_str.rs
@@ -198,6 +198,13 @@ impl<'a> Converter<'a> {
                     }
                     LIFETIME_IDENT
                 }
+                rustc_lexer::TokenKind::UnknownPrefixLifetime => {
+                    err = "Unknown lifetime prefix";
+                    LIFETIME_IDENT
+                }
+                rustc_lexer::TokenKind::RawLifetime => {
+                    LIFETIME_IDENT
+                }
 
                 rustc_lexer::TokenKind::Semi => T![;],
                 rustc_lexer::TokenKind::Comma => T![,],
diff --git a/src/tools/rustfmt/src/expr.rs b/src/tools/rustfmt/src/expr.rs
index 6ba5217bc92..75c75c523b0 100644
--- a/src/tools/rustfmt/src/expr.rs
+++ b/src/tools/rustfmt/src/expr.rs
@@ -462,7 +462,7 @@ fn rewrite_empty_block(
         return None;
     }
 
-    let label_str = rewrite_label(label);
+    let label_str = rewrite_label(context, label);
     if attrs.map_or(false, |a| !inner_attributes(a).is_empty()) {
         return None;
     }
@@ -527,7 +527,7 @@ fn rewrite_single_line_block(
     if let Some(block_expr) = stmt::Stmt::from_simple_block(context, block, attrs) {
         let expr_shape = shape.offset_left(last_line_width(prefix))?;
         let expr_str = block_expr.rewrite(context, expr_shape)?;
-        let label_str = rewrite_label(label);
+        let label_str = rewrite_label(context, label);
         let result = format!("{prefix}{label_str}{{ {expr_str} }}");
         if result.len() <= shape.width && !result.contains('\n') {
             return Some(result);
@@ -562,7 +562,7 @@ pub(crate) fn rewrite_block_with_visitor(
     }
 
     let inner_attrs = attrs.map(inner_attributes);
-    let label_str = rewrite_label(label);
+    let label_str = rewrite_label(context, label);
     visitor.visit_block(block, inner_attrs.as_deref(), has_braces);
     let visitor_context = visitor.get_context();
     context
@@ -939,7 +939,7 @@ impl<'a> ControlFlow<'a> {
             fresh_shape
         };
 
-        let label_string = rewrite_label(self.label);
+        let label_string = rewrite_label(context, self.label);
         // 1 = space after keyword.
         let offset = self.keyword.len() + label_string.len() + 1;
 
@@ -1168,9 +1168,9 @@ impl<'a> Rewrite for ControlFlow<'a> {
     }
 }
 
-fn rewrite_label(opt_label: Option<ast::Label>) -> Cow<'static, str> {
+fn rewrite_label(context: &RewriteContext<'_>, opt_label: Option<ast::Label>) -> Cow<'static, str> {
     match opt_label {
-        Some(label) => Cow::from(format!("{}: ", label.ident)),
+        Some(label) => Cow::from(format!("{}: ", context.snippet(label.ident.span))),
         None => Cow::from(""),
     }
 }
diff --git a/src/tools/rustfmt/src/macros.rs b/src/tools/rustfmt/src/macros.rs
index b14b74a4938..524fc666fae 100644
--- a/src/tools/rustfmt/src/macros.rs
+++ b/src/tools/rustfmt/src/macros.rs
@@ -1074,7 +1074,7 @@ fn force_space_before(tok: &TokenKind) -> bool {
 fn ident_like(tok: &Token) -> bool {
     matches!(
         tok.kind,
-        TokenKind::Ident(..) | TokenKind::Literal(..) | TokenKind::Lifetime(_)
+        TokenKind::Ident(..) | TokenKind::Literal(..) | TokenKind::Lifetime(..)
     )
 }
 
@@ -1099,7 +1099,9 @@ fn next_space(tok: &TokenKind) -> SpaceState {
         | TokenKind::OpenDelim(_)
         | TokenKind::CloseDelim(_) => SpaceState::Never,
 
-        TokenKind::Literal(..) | TokenKind::Ident(..) | TokenKind::Lifetime(_) => SpaceState::Ident,
+        TokenKind::Literal(..) | TokenKind::Ident(..) | TokenKind::Lifetime(..) => {
+            SpaceState::Ident
+        }
 
         _ => SpaceState::Always,
     }
diff --git a/src/tools/rustfmt/src/types.rs b/src/tools/rustfmt/src/types.rs
index 875c61113c5..7730aa467ce 100644
--- a/src/tools/rustfmt/src/types.rs
+++ b/src/tools/rustfmt/src/types.rs
@@ -548,7 +548,7 @@ impl Rewrite for ast::AnonConst {
 
 impl Rewrite for ast::Lifetime {
     fn rewrite(&self, context: &RewriteContext<'_>, _: Shape) -> Option<String> {
-        Some(rewrite_ident(context, self.ident).to_owned())
+        Some(context.snippet(self.ident.span).to_owned())
     }
 }
 
diff --git a/src/tools/rustfmt/tests/target/raw-lifetimes.rs b/src/tools/rustfmt/tests/target/raw-lifetimes.rs
new file mode 100644
index 00000000000..62fb9be6882
--- /dev/null
+++ b/src/tools/rustfmt/tests/target/raw-lifetimes.rs
@@ -0,0 +1,15 @@
+// rustfmt-edition: 2021
+
+// Simple idempotence test for raw lifetimes.
+
+fn test<'r#gen>() -> &'r#gen () {
+    // Test raw lifetimes...
+}
+
+fn label() {
+    'r#label: {
+        // Test raw labels.
+    }
+}
+
+fn main() {}
diff --git a/src/tools/wasm-component-ld/README.md b/src/tools/wasm-component-ld/README.md
index 54608a2dea1..b51de9a9dce 100644
--- a/src/tools/wasm-component-ld/README.md
+++ b/src/tools/wasm-component-ld/README.md
@@ -1,7 +1,7 @@
 # `wasm-component-ld`
 
-This wrapper is a wrapper around the [`wasm-component-ld`] crates.io crate. That
-crate. That crate is itself a thin wrapper around two pieces:
+This wrapper is a wrapper around the [`wasm-component-ld`] crates.io crate.
+That crate is itself a thin wrapper around two pieces:
 
 * `wasm-ld` - the LLVM-based linker distributed as part of LLD and packaged in
   Rust as `rust-lld`.
diff --git a/tests/assembly/asm/aarch64-modifiers.rs b/tests/assembly/asm/aarch64-modifiers.rs
index b7ef1d77ea0..a4a41dd96c1 100644
--- a/tests/assembly/asm/aarch64-modifiers.rs
+++ b/tests/assembly/asm/aarch64-modifiers.rs
@@ -1,6 +1,7 @@
 //@ assembly-output: emit-asm
 //@ compile-flags: -O -C panic=abort
 //@ compile-flags: --target aarch64-unknown-linux-gnu
+//@ compile-flags: -Zmerge-functions=disabled
 //@ needs-llvm-components: aarch64
 
 #![feature(no_core, lang_items, rustc_attrs)]
@@ -29,12 +30,6 @@ macro_rules! check {
         // -O and extern "C" guarantee that the selected register is always r0/s0/d0/q0
         #[no_mangle]
         pub unsafe extern "C" fn $func() -> i32 {
-            // Hack to avoid function merging
-            extern "Rust" {
-                fn dont_merge(s: &str);
-            }
-            dont_merge(stringify!($func));
-
             let y;
             asm!($code, out($reg) y);
             y
diff --git a/tests/assembly/asm/aarch64-types.rs b/tests/assembly/asm/aarch64-types.rs
index f36345670e3..cf1882ba1a2 100644
--- a/tests/assembly/asm/aarch64-types.rs
+++ b/tests/assembly/asm/aarch64-types.rs
@@ -4,6 +4,7 @@
 //@ [aarch64] needs-llvm-components: aarch64
 //@ [arm64ec] compile-flags: --target arm64ec-pc-windows-msvc
 //@ [arm64ec] needs-llvm-components: aarch64
+//@ compile-flags: -Zmerge-functions=disabled
 
 #![feature(no_core, lang_items, rustc_attrs, repr_simd, asm_experimental_arch, f16, f128)]
 #![crate_type = "rlib"]
@@ -132,12 +133,6 @@ macro_rules! check {
         // LLVM issue: <https://github.com/llvm/llvm-project/issues/94434>
         #[no_mangle]
         pub unsafe fn $func(inp: &$ty, out: &mut $ty) {
-            // Hack to avoid function merging
-            extern "Rust" {
-                fn dont_merge(s: &str);
-            }
-            dont_merge(stringify!($func));
-
             let x = *inp;
             let y;
             asm!(
@@ -155,12 +150,6 @@ macro_rules! check_reg {
         // FIXME(f16_f128): See FIXME in `check!`
         #[no_mangle]
         pub unsafe fn $func(inp: &$ty, out: &mut $ty) {
-            // Hack to avoid function merging
-            extern "Rust" {
-                fn dont_merge(s: &str);
-            }
-            dont_merge(stringify!($func));
-
             let x = *inp;
             let y;
             asm!(concat!($mov, " ", $reg, ", ", $reg), lateout($reg) y, in($reg) x);
diff --git a/tests/assembly/asm/arm-modifiers.rs b/tests/assembly/asm/arm-modifiers.rs
index 0674e169d72..d421e0e6954 100644
--- a/tests/assembly/asm/arm-modifiers.rs
+++ b/tests/assembly/asm/arm-modifiers.rs
@@ -2,6 +2,7 @@
 //@ compile-flags: -O -C panic=abort
 //@ compile-flags: --target armv7-unknown-linux-gnueabihf
 //@ compile-flags: -C target-feature=+neon
+//@ compile-flags: -Zmerge-functions=disabled
 //@ needs-llvm-components: arm
 
 #![feature(no_core, lang_items, rustc_attrs, repr_simd)]
@@ -40,12 +41,6 @@ macro_rules! check {
         // -O and extern "C" guarantee that the selected register is always r0/s0/d0/q0
         #[no_mangle]
         pub unsafe extern "C" fn $func() -> $ty {
-            // Hack to avoid function merging
-            extern "Rust" {
-                fn dont_merge(s: &str);
-            }
-            dont_merge(stringify!($func));
-
             let y;
             asm!(concat!($mov, " {0:", $modifier, "}, {0:", $modifier, "}"), out($reg) y);
             y
diff --git a/tests/assembly/asm/arm-types.rs b/tests/assembly/asm/arm-types.rs
index eeff1a070b4..448b92aa839 100644
--- a/tests/assembly/asm/arm-types.rs
+++ b/tests/assembly/asm/arm-types.rs
@@ -2,6 +2,7 @@
 //@ assembly-output: emit-asm
 //@ compile-flags: --target armv7-unknown-linux-gnueabihf
 //@ compile-flags: -C opt-level=0
+//@ compile-flags: -Zmerge-functions=disabled
 //@[d32] compile-flags: -C target-feature=+d32
 //@[neon] compile-flags: -C target-feature=+neon --cfg d32
 //@[neon] filecheck-flags: --check-prefix d32
@@ -114,12 +115,6 @@ macro_rules! check {
     ($func:ident $ty:ident $class:ident $mov:literal) => {
         #[no_mangle]
         pub unsafe fn $func(x: $ty) -> $ty {
-            // Hack to avoid function merging
-            extern "Rust" {
-                fn dont_merge(s: &str);
-            }
-            dont_merge(stringify!($func));
-
             let y;
             asm!(concat!($mov, " {}, {}"), out($class) y, in($class) x);
             y
@@ -131,12 +126,6 @@ macro_rules! check_reg {
     ($func:ident $ty:ident $reg:tt $mov:literal) => {
         #[no_mangle]
         pub unsafe fn $func(x: $ty) -> $ty {
-            // Hack to avoid function merging
-            extern "Rust" {
-                fn dont_merge(s: &str);
-            }
-            dont_merge(stringify!($func));
-
             let y;
             asm!(concat!($mov, " ", $reg, ", ", $reg), lateout($reg) y, in($reg) x);
             y
diff --git a/tests/assembly/asm/hexagon-types.rs b/tests/assembly/asm/hexagon-types.rs
index 269c7582a1c..9389fcf9cba 100644
--- a/tests/assembly/asm/hexagon-types.rs
+++ b/tests/assembly/asm/hexagon-types.rs
@@ -1,5 +1,6 @@
 //@ assembly-output: emit-asm
 //@ compile-flags: --target hexagon-unknown-linux-musl
+//@ compile-flags: -Zmerge-functions=disabled
 //@ needs-llvm-components: hexagon
 
 #![feature(no_core, lang_items, rustc_attrs, repr_simd, asm_experimental_arch)]
@@ -41,12 +42,6 @@ macro_rules! check {
     ($func:ident $ty:ident $class:ident) => {
         #[no_mangle]
         pub unsafe fn $func(x: $ty) -> $ty {
-            // Hack to avoid function merging
-            extern "Rust" {
-                fn dont_merge(s: &str);
-            }
-            dont_merge(stringify!($func));
-
             let y;
             asm!("{} = {}", out($class) y, in($class) x);
             y
@@ -58,12 +53,6 @@ macro_rules! check_reg {
     ($func:ident $ty:ident $reg:tt) => {
         #[no_mangle]
         pub unsafe fn $func(x: $ty) -> $ty {
-            // Hack to avoid function merging
-            extern "Rust" {
-                fn dont_merge(s: &str);
-            }
-            dont_merge(stringify!($func));
-
             let y;
             asm!(concat!($reg, " = ", $reg), lateout($reg) y, in($reg) x);
             y
@@ -77,12 +66,6 @@ macro_rules! check_reg {
 // CHECK: InlineAsm End
 #[no_mangle]
 pub unsafe fn sym_static() {
-    // Hack to avoid function merging
-    extern "Rust" {
-        fn dont_merge(s: &str);
-    }
-    dont_merge(stringify!($func));
-
     asm!("r0 = #{}", sym extern_static);
 }
 
@@ -92,12 +75,6 @@ pub unsafe fn sym_static() {
 // CHECK: InlineAsm End
 #[no_mangle]
 pub unsafe fn sym_fn() {
-    // Hack to avoid function merging
-    extern "Rust" {
-        fn dont_merge(s: &str);
-    }
-    dont_merge(stringify!($func));
-
     asm!("r0 = #{}", sym extern_func);
 }
 
diff --git a/tests/assembly/asm/loongarch-type.rs b/tests/assembly/asm/loongarch-type.rs
index e4c46cfcf81..1b097f41105 100644
--- a/tests/assembly/asm/loongarch-type.rs
+++ b/tests/assembly/asm/loongarch-type.rs
@@ -1,5 +1,6 @@
 //@ assembly-output: emit-asm
 //@ compile-flags: --target loongarch64-unknown-linux-gnu
+//@ compile-flags: -Zmerge-functions=disabled
 //@ needs-llvm-components: loongarch
 
 #![feature(no_core, lang_items, rustc_attrs, asm_experimental_arch)]
@@ -39,11 +40,6 @@ extern "C" {
     static extern_static: u8;
 }
 
-// Hack to avoid function merging
-extern "Rust" {
-    fn dont_merge(s: &str);
-}
-
 // CHECK-LABEL: sym_fn:
 // CHECK: #APP
 // CHECK: pcalau12i $t0, %got_pc_hi20(extern_func)
@@ -67,8 +63,6 @@ pub unsafe fn sym_static() {
 macro_rules! check { ($func:ident, $ty:ty, $class:ident, $mov:literal) => {
     #[no_mangle]
     pub unsafe fn $func(x: $ty) -> $ty {
-        dont_merge(stringify!($func));
-
         let y;
         asm!(concat!($mov," {}, {}"), out($class) y, in($class) x);
         y
@@ -78,8 +72,6 @@ macro_rules! check { ($func:ident, $ty:ty, $class:ident, $mov:literal) => {
 macro_rules! check_reg { ($func:ident, $ty:ty, $reg:tt, $mov:literal) => {
     #[no_mangle]
     pub unsafe fn $func(x: $ty) -> $ty {
-        dont_merge(stringify!($func));
-
         let y;
         asm!(concat!($mov, " ", $reg, ", ", $reg), lateout($reg) y, in($reg) x);
         y
diff --git a/tests/assembly/asm/mips-types.rs b/tests/assembly/asm/mips-types.rs
index bd62f4a5236..f40a28be4a7 100644
--- a/tests/assembly/asm/mips-types.rs
+++ b/tests/assembly/asm/mips-types.rs
@@ -4,6 +4,7 @@
 //@[mips32] needs-llvm-components: mips
 //@[mips64] compile-flags: --target mips64-unknown-linux-gnuabi64
 //@[mips64] needs-llvm-components: mips
+//@ compile-flags: -Zmerge-functions=disabled
 
 #![feature(no_core, lang_items, rustc_attrs, repr_simd, asm_experimental_arch)]
 #![crate_type = "rlib"]
@@ -43,16 +44,9 @@ extern "C" {
     static extern_static: u8;
 }
 
-// Hack to avoid function merging
-extern "Rust" {
-    fn dont_merge(s: &str);
-}
-
 macro_rules! check { ($func:ident, $ty:ty, $class:ident, $mov:literal) => {
     #[no_mangle]
     pub unsafe fn $func(x: $ty) -> $ty {
-        dont_merge(stringify!($func));
-
         let y;
         asm!(concat!($mov," {}, {}"), out($class) y, in($class) x);
         y
@@ -62,8 +56,6 @@ macro_rules! check { ($func:ident, $ty:ty, $class:ident, $mov:literal) => {
 macro_rules! check_reg { ($func:ident, $ty:ty, $reg:tt, $mov:literal) => {
     #[no_mangle]
     pub unsafe fn $func(x: $ty) -> $ty {
-        dont_merge(stringify!($func));
-
         let y;
         asm!(concat!($mov, " ", $reg, ", ", $reg), lateout($reg) y, in($reg) x);
         y
diff --git a/tests/assembly/asm/powerpc-types.rs b/tests/assembly/asm/powerpc-types.rs
index bc8af08ad11..85321e5f345 100644
--- a/tests/assembly/asm/powerpc-types.rs
+++ b/tests/assembly/asm/powerpc-types.rs
@@ -4,6 +4,7 @@
 //@[powerpc] needs-llvm-components: powerpc
 //@[powerpc64] compile-flags: --target powerpc64-unknown-linux-gnu
 //@[powerpc64] needs-llvm-components: powerpc
+//@ compile-flags: -Zmerge-functions=disabled
 
 #![feature(no_core, lang_items, rustc_attrs, repr_simd, asm_experimental_arch)]
 #![crate_type = "rlib"]
@@ -43,16 +44,9 @@ extern "C" {
     static extern_static: u8;
 }
 
-// Hack to avoid function merging
-extern "Rust" {
-    fn dont_merge(s: &str);
-}
-
 macro_rules! check { ($func:ident, $ty:ty, $class:ident, $mov:literal) => {
     #[no_mangle]
     pub unsafe fn $func(x: $ty) -> $ty {
-        dont_merge(stringify!($func));
-
         let y;
         asm!(concat!($mov," {}, {}"), out($class) y, in($class) x);
         y
@@ -62,8 +56,6 @@ macro_rules! check { ($func:ident, $ty:ty, $class:ident, $mov:literal) => {
 macro_rules! check_reg { ($func:ident, $ty:ty, $rego:tt, $regc:tt, $mov:literal) => {
     #[no_mangle]
     pub unsafe fn $func(x: $ty) -> $ty {
-        dont_merge(stringify!($func));
-
         let y;
         asm!(concat!($mov, " ", $rego, ", ", $rego), lateout($regc) y, in($regc) x);
         y
diff --git a/tests/assembly/asm/riscv-types.rs b/tests/assembly/asm/riscv-types.rs
index 51b3aaf99d9..1f5d7d85b0a 100644
--- a/tests/assembly/asm/riscv-types.rs
+++ b/tests/assembly/asm/riscv-types.rs
@@ -27,6 +27,7 @@
 //@[riscv32-zfh] filecheck-flags: --check-prefix zfhmin
 
 //@ compile-flags: -C target-feature=+d
+//@ compile-flags: -Zmerge-functions=disabled
 
 #![feature(no_core, lang_items, rustc_attrs, f16)]
 #![crate_type = "rlib"]
@@ -90,12 +91,6 @@ macro_rules! check {
     ($func:ident $ty:ident $class:ident $mov:literal) => {
         #[no_mangle]
         pub unsafe fn $func(x: $ty) -> $ty {
-            // Hack to avoid function merging
-            extern "Rust" {
-                fn dont_merge(s: &str);
-            }
-            dont_merge(stringify!($func));
-
             let y;
             asm!(concat!($mov, " {}, {}"), out($class) y, in($class) x);
             y
@@ -107,12 +102,6 @@ macro_rules! check_reg {
     ($func:ident $ty:ident $reg:tt $mov:literal) => {
         #[no_mangle]
         pub unsafe fn $func(x: $ty) -> $ty {
-            // Hack to avoid function merging
-            extern "Rust" {
-                fn dont_merge(s: &str);
-            }
-            dont_merge(stringify!($func));
-
             let y;
             asm!(concat!($mov, " ", $reg, ", ", $reg), lateout($reg) y, in($reg) x);
             y
diff --git a/tests/assembly/asm/s390x-types.rs b/tests/assembly/asm/s390x-types.rs
index 661907360bd..e68b18d7aa6 100644
--- a/tests/assembly/asm/s390x-types.rs
+++ b/tests/assembly/asm/s390x-types.rs
@@ -2,6 +2,7 @@
 //@ assembly-output: emit-asm
 //@[s390x] compile-flags: --target s390x-unknown-linux-gnu
 //@[s390x] needs-llvm-components: systemz
+//@ compile-flags: -Zmerge-functions=disabled
 
 #![feature(no_core, lang_items, rustc_attrs, repr_simd, asm_experimental_arch)]
 #![crate_type = "rlib"]
@@ -42,16 +43,9 @@ extern "C" {
     static extern_static: u8;
 }
 
-// Hack to avoid function merging
-extern "Rust" {
-    fn dont_merge(s: &str);
-}
-
 macro_rules! check { ($func:ident, $ty:ty, $class:ident, $mov:literal) => {
     #[no_mangle]
     pub unsafe fn $func(x: $ty) -> $ty {
-        dont_merge(stringify!($func));
-
         let y;
         asm!(concat!($mov," {}, {}"), out($class) y, in($class) x);
         y
@@ -61,8 +55,6 @@ macro_rules! check { ($func:ident, $ty:ty, $class:ident, $mov:literal) => {
 macro_rules! check_reg { ($func:ident, $ty:ty, $reg:tt, $mov:literal) => {
     #[no_mangle]
     pub unsafe fn $func(x: $ty) -> $ty {
-        dont_merge(stringify!($func));
-
         let y;
         asm!(concat!($mov, " %", $reg, ", %", $reg), lateout($reg) y, in($reg) x);
         y
diff --git a/tests/assembly/asm/x86-modifiers.rs b/tests/assembly/asm/x86-modifiers.rs
index c5e393b1056..5a48af9205f 100644
--- a/tests/assembly/asm/x86-modifiers.rs
+++ b/tests/assembly/asm/x86-modifiers.rs
@@ -7,6 +7,7 @@
 //@[i686] needs-llvm-components: x86
 //@ compile-flags: -C llvm-args=--x86-asm-syntax=intel
 //@ compile-flags: -C target-feature=+avx512bw
+//@ compile-flags: -Zmerge-functions=disabled
 
 #![feature(no_core, lang_items, rustc_attrs)]
 #![crate_type = "rlib"]
@@ -38,12 +39,6 @@ macro_rules! check {
         // -O and extern "C" guarantee that the selected register is always ax/xmm0
         #[no_mangle]
         pub unsafe extern "C" fn $func() -> i32 {
-            // Hack to avoid function merging
-            extern "Rust" {
-                fn dont_merge(s: &str);
-            }
-            dont_merge(stringify!($func));
-
             let y;
             asm!(concat!($mov, " {0:", $modifier, "}, {0:", $modifier, "}"), out($reg) y);
             y
diff --git a/tests/assembly/asm/x86-types.rs b/tests/assembly/asm/x86-types.rs
index 8e229614420..a40bc10d991 100644
--- a/tests/assembly/asm/x86-types.rs
+++ b/tests/assembly/asm/x86-types.rs
@@ -6,6 +6,7 @@
 //@[i686] needs-llvm-components: x86
 //@ compile-flags: -C llvm-args=--x86-asm-syntax=intel
 //@ compile-flags: -C target-feature=+avx512bw
+//@ compile-flags: -Zmerge-functions=disabled
 
 #![feature(no_core, lang_items, rustc_attrs, repr_simd, f16, f128)]
 #![crate_type = "rlib"]
@@ -283,12 +284,6 @@ macro_rules! check {
     ($func:ident $ty:ident $class:ident $mov:literal) => {
         #[no_mangle]
         pub unsafe fn $func(x: $ty) -> $ty {
-            // Hack to avoid function merging
-            extern "Rust" {
-                fn dont_merge(s: &str);
-            }
-            dont_merge(stringify!($func));
-
             let y;
             asm!(concat!($mov, " {}, {}"), lateout($class) y, in($class) x);
             y
@@ -300,12 +295,6 @@ macro_rules! check_reg {
     ($func:ident $ty:ident $reg:tt $mov:literal) => {
         #[no_mangle]
         pub unsafe fn $func(x: $ty) -> $ty {
-            // Hack to avoid function merging
-            extern "Rust" {
-                fn dont_merge(s: &str);
-            }
-            dont_merge(stringify!($func));
-
             let y;
             asm!(concat!($mov, " ", $reg, ", ", $reg), lateout($reg) y, in($reg) x);
             y
diff --git a/tests/assembly/s390x-backchain-toggle.rs b/tests/assembly/s390x-backchain-toggle.rs
new file mode 100644
index 00000000000..8b6d0cf2123
--- /dev/null
+++ b/tests/assembly/s390x-backchain-toggle.rs
@@ -0,0 +1,46 @@
+//@ revisions: enable-backchain disable-backchain
+//@ assembly-output: emit-asm
+//@ compile-flags: -O --crate-type=lib --target=s390x-unknown-linux-gnu
+//@ needs-llvm-components: systemz
+//@[enable-backchain] compile-flags: -Ctarget-feature=+backchain
+//@[disable-backchain] compile-flags: -Ctarget-feature=-backchain
+#![feature(no_core, lang_items)]
+#![no_std]
+#![no_core]
+
+#[lang = "sized"]
+trait Sized {}
+
+extern "C" {
+    fn extern_func();
+}
+
+// CHECK-LABEL: test_backchain
+#[no_mangle]
+extern "C" fn test_backchain() -> i32 {
+    // Here we try to match if backchain register is saved to the parameter area (stored in r15/sp)
+    // And also if a new parameter area (160 bytes) is allocated for the upcoming function call
+    // enable-backchain: lgr [[REG1:.*]], %r15
+    // enable-backchain-NEXT: aghi %r15, -160
+    // enable-backchain: stg [[REG1]], 0(%r15)
+    // disable-backchain: aghi %r15, -160
+    // disable-backchain-NOT: stg %r{{.*}}, 0(%r15)
+    unsafe {
+        extern_func();
+    }
+    // enable-backchain-NEXT: brasl %r{{.*}}, extern_func@PLT
+    // disable-backchain: brasl %r{{.*}}, extern_func@PLT
+
+    // Make sure that the expected return value is written into %r2 (return register):
+    // enable-backchain-NEXT: lghi %r2, 1
+    // disable-backchain: lghi %r2, 0
+    #[cfg(target_feature = "backchain")]
+    {
+        1
+    }
+    #[cfg(not(target_feature = "backchain"))]
+    {
+        0
+    }
+    // CHECK: br %r{{.*}}
+}
diff --git a/tests/assembly/targets/targets-elf.rs b/tests/assembly/targets/targets-elf.rs
index c8610e03939..4e1c5e6806e 100644
--- a/tests/assembly/targets/targets-elf.rs
+++ b/tests/assembly/targets/targets-elf.rs
@@ -552,6 +552,9 @@
 //@ revisions: x86_64_unknown_haiku
 //@ [x86_64_unknown_haiku] compile-flags: --target x86_64-unknown-haiku
 //@ [x86_64_unknown_haiku] needs-llvm-components: x86
+//@ revisions: x86_64_unknown_hurd_gnu
+//@ [x86_64_unknown_hurd_gnu] compile-flags: --target x86_64-unknown-hurd-gnu
+//@ [x86_64_unknown_hurd_gnu] needs-llvm-components: x86
 //@ revisions: x86_64_unknown_hermit
 //@ [x86_64_unknown_hermit] compile-flags: --target x86_64-unknown-hermit
 //@ [x86_64_unknown_hermit] needs-llvm-components: x86
diff --git a/tests/codegen/naked-asan.rs b/tests/codegen/naked-asan.rs
new file mode 100644
index 00000000000..a45b95780f7
--- /dev/null
+++ b/tests/codegen/naked-asan.rs
@@ -0,0 +1,22 @@
+// Make sure we do not request sanitizers for naked functions.
+
+//@ only-x86_64
+//@ needs-sanitizer-address
+//@ compile-flags: -Zsanitizer=address -Ctarget-feature=-crt-static
+
+#![crate_type = "lib"]
+#![no_std]
+#![feature(abi_x86_interrupt, naked_functions)]
+
+// CHECK: define x86_intrcc void @page_fault_handler(ptr {{.*}}%0, i64 {{.*}}%1){{.*}}#[[ATTRS:[0-9]+]] {
+// CHECK-NOT: memcpy
+#[naked]
+#[no_mangle]
+pub extern "x86-interrupt" fn page_fault_handler(_: u64, _: u64) {
+    unsafe {
+        core::arch::asm!("ud2", options(noreturn));
+    }
+}
+
+// CHECK: #[[ATTRS]] =
+// CHECK-NOT: sanitize_address
diff --git a/tests/crashes/123629.rs b/tests/crashes/123629.rs
new file mode 100644
index 00000000000..61532321806
--- /dev/null
+++ b/tests/crashes/123629.rs
@@ -0,0 +1,10 @@
+//@ known-bug: #123629
+#![feature(generic_assert)]
+
+fn foo()
+where
+    for<const N: usize = { assert!(u) }> ():,
+{
+}
+
+fn main() {}
diff --git a/tests/crashes/127033.rs b/tests/crashes/127033.rs
new file mode 100644
index 00000000000..919c9dfd30e
--- /dev/null
+++ b/tests/crashes/127033.rs
@@ -0,0 +1,18 @@
+//@ known-bug: #127033
+//@ compile-flags: --edition=2021
+
+pub trait RaftLogStorage {
+    fn save_vote(vote: ()) -> impl std::future::Future + Send;
+}
+
+struct X;
+impl RaftLogStorage for X {
+    fn save_vote(vote: ()) -> impl std::future::Future {
+        loop {}
+        async {
+            vote
+        }
+    }
+}
+
+fn main() {}
diff --git a/tests/crashes/129166.rs b/tests/crashes/129166.rs
deleted file mode 100644
index d3635d410db..00000000000
--- a/tests/crashes/129166.rs
+++ /dev/null
@@ -1,7 +0,0 @@
-//@ known-bug: rust-lang/rust#129166
-
-fn main() {
-    #[cfg_eval]
-    #[cfg]
-    0
-}
diff --git a/tests/crashes/129372.rs b/tests/crashes/129372.rs
new file mode 100644
index 00000000000..43be01b35df
--- /dev/null
+++ b/tests/crashes/129372.rs
@@ -0,0 +1,52 @@
+//@ known-bug: #129372
+//@ compile-flags: -Cdebuginfo=2 -Copt-level=0
+
+pub struct Wrapper<T>(T);
+struct Struct;
+
+pub trait TraitA {
+    type AssocA<'t>;
+}
+pub trait TraitB {
+    type AssocB;
+}
+
+pub fn helper(v: impl MethodTrait) {
+    let _local_that_causes_ice = v.method();
+}
+
+pub fn main() {
+    helper(Wrapper(Struct));
+}
+
+pub trait MethodTrait {
+    type Assoc<'a>;
+
+    fn method(self) -> impl for<'a> FnMut(&'a ()) -> Self::Assoc<'a>;
+}
+
+impl<T: TraitB> MethodTrait for T
+where
+    <T as TraitB>::AssocB: TraitA,
+{
+    type Assoc<'a> = <T::AssocB as TraitA>::AssocA<'a>;
+
+    fn method(self) -> impl for<'a> FnMut(&'a ()) -> Self::Assoc<'a> {
+        move |_| loop {}
+    }
+}
+
+impl<T, B> TraitB for Wrapper<B>
+where
+    B: TraitB<AssocB = T>,
+{
+    type AssocB = T;
+}
+
+impl TraitB for Struct {
+    type AssocB = Struct;
+}
+
+impl TraitA for Struct {
+    type AssocA<'t> = Self;
+}
diff --git a/tests/debuginfo/by-value-non-immediate-argument.rs b/tests/debuginfo/by-value-non-immediate-argument.rs
index f0a39a45195..192f6efe7db 100644
--- a/tests/debuginfo/by-value-non-immediate-argument.rs
+++ b/tests/debuginfo/by-value-non-immediate-argument.rs
@@ -1,6 +1,7 @@
 //@ min-lldb-version: 1800
 //@ min-gdb-version: 13.0
 //@ compile-flags:-g
+//@ ignore-windows-gnu: #128973
 
 // === GDB TESTS ===================================================================================
 
diff --git a/tests/debuginfo/method-on-enum.rs b/tests/debuginfo/method-on-enum.rs
index a570144450d..754b4a2dc26 100644
--- a/tests/debuginfo/method-on-enum.rs
+++ b/tests/debuginfo/method-on-enum.rs
@@ -3,6 +3,8 @@
 
 //@ compile-flags:-g
 
+//@ ignore-windows-gnu: #128973
+
 // === GDB TESTS ===================================================================================
 
 // gdb-command:run
diff --git a/tests/rustdoc-js-std/parser-errors.js b/tests/rustdoc-js-std/parser-errors.js
index c4d7c2b0b85..5ce35bf511d 100644
--- a/tests/rustdoc-js-std/parser-errors.js
+++ b/tests/rustdoc-js-std/parser-errors.js
@@ -252,15 +252,6 @@ const PARSED = [
         error: "Unexpected `'` after `b` (not a valid identifier)",
     },
     {
-        query: "a->",
-        elems: [],
-        foundElems: 0,
-        original: "a->",
-        returned: [],
-        userQuery: "a->",
-        error: "Expected at least one item after `->`",
-    },
-    {
         query: '"p" <a>',
         elems: [],
         foundElems: 0,
diff --git a/tests/rustdoc-js-std/parser-returned.js b/tests/rustdoc-js-std/parser-returned.js
index 44e517c49b5..8f68209bb96 100644
--- a/tests/rustdoc-js-std/parser-returned.js
+++ b/tests/rustdoc-js-std/parser-returned.js
@@ -94,4 +94,72 @@ const PARSED = [
         userQuery: "-> !",
         error: null,
     },
+    {
+        query: "a->",
+        elems: [{
+            name: "a",
+            fullPath: ["a"],
+            pathWithoutLast: [],
+            pathLast: "a",
+            generics: [],
+            typeFilter: -1,
+        }],
+        foundElems: 1,
+        original: "a->",
+        returned: [],
+        userQuery: "a->",
+        hasReturnArrow: true,
+        error: null,
+    },
+    {
+        query: "!->",
+        elems: [{
+            name: "never",
+            fullPath: ["never"],
+            pathWithoutLast: [],
+            pathLast: "never",
+            generics: [],
+            typeFilter: 1,
+        }],
+        foundElems: 1,
+        original: "!->",
+        returned: [],
+        userQuery: "!->",
+        hasReturnArrow: true,
+        error: null,
+    },
+    {
+        query: "! ->",
+        elems: [{
+            name: "never",
+            fullPath: ["never"],
+            pathWithoutLast: [],
+            pathLast: "never",
+            generics: [],
+            typeFilter: 1,
+        }],
+        foundElems: 1,
+        original: "! ->",
+        returned: [],
+        userQuery: "! ->",
+        hasReturnArrow: true,
+        error: null,
+    },
+    {
+        query: "primitive:!->",
+        elems: [{
+            name: "never",
+            fullPath: ["never"],
+            pathWithoutLast: [],
+            pathLast: "never",
+            generics: [],
+            typeFilter: 1,
+        }],
+        foundElems: 1,
+        original: "primitive:!->",
+        returned: [],
+        userQuery: "primitive:!->",
+        hasReturnArrow: true,
+        error: null,
+    },
 ];
diff --git a/tests/rustdoc-js/never-search.js b/tests/rustdoc-js/never-search.js
index 9f18370c2f5..9cc62a5ed04 100644
--- a/tests/rustdoc-js/never-search.js
+++ b/tests/rustdoc-js/never-search.js
@@ -2,6 +2,13 @@
 
 const EXPECTED = [
     {
+        'query': '! ->',
+        'others': [
+            { 'path': 'never_search', 'name': 'impossible' },
+            { 'path': 'never_search', 'name': 'box_impossible' },
+        ],
+    },
+    {
         'query': '-> !',
         'others': [
             { 'path': 'never_search', 'name': 'loops' },
diff --git a/tests/rustdoc-json/assoc_items.rs b/tests/rustdoc-json/assoc_items.rs
index 7fd0fe2b898..f315f37966d 100644
--- a/tests/rustdoc-json/assoc_items.rs
+++ b/tests/rustdoc-json/assoc_items.rs
@@ -9,12 +9,12 @@ impl Simple {
 
 pub trait EasyToImpl {
     //@ has "$.index[*][?(@.docs=='ToDeclare trait')].inner.assoc_type"
-    //@ is "$.index[*][?(@.docs=='ToDeclare trait')].inner.assoc_type.default" null
+    //@ is "$.index[*][?(@.docs=='ToDeclare trait')].inner.assoc_type.type" null
     //@ is "$.index[*][?(@.docs=='ToDeclare trait')].inner.assoc_type.bounds" []
     /// ToDeclare trait
     type ToDeclare;
     //@ has "$.index[*][?(@.docs=='AN_ATTRIBUTE trait')].inner.assoc_const"
-    //@ is "$.index[*][?(@.docs=='AN_ATTRIBUTE trait')].inner.assoc_const.default" null
+    //@ is "$.index[*][?(@.docs=='AN_ATTRIBUTE trait')].inner.assoc_const.value" null
     //@ is "$.index[*][?(@.docs=='AN_ATTRIBUTE trait')].inner.assoc_const.type.primitive" '"usize"'
     /// AN_ATTRIBUTE trait
     const AN_ATTRIBUTE: usize;
@@ -22,13 +22,13 @@ pub trait EasyToImpl {
 
 impl EasyToImpl for Simple {
     //@ has "$.index[*][?(@.docs=='ToDeclare impl')].inner.assoc_type"
-    //@ is "$.index[*][?(@.docs=='ToDeclare impl')].inner.assoc_type.default.primitive" \"usize\"
+    //@ is "$.index[*][?(@.docs=='ToDeclare impl')].inner.assoc_type.type.primitive" \"usize\"
     /// ToDeclare impl
     type ToDeclare = usize;
 
     //@ has "$.index[*][?(@.docs=='AN_ATTRIBUTE impl')].inner.assoc_const"
     //@ is "$.index[*][?(@.docs=='AN_ATTRIBUTE impl')].inner.assoc_const.type.primitive" \"usize\"
-    //@ is "$.index[*][?(@.docs=='AN_ATTRIBUTE impl')].inner.assoc_const.default" \"12\"
+    //@ is "$.index[*][?(@.docs=='AN_ATTRIBUTE impl')].inner.assoc_const.value" \"12\"
     /// AN_ATTRIBUTE impl
     const AN_ATTRIBUTE: usize = 12;
 }
diff --git a/tests/rustdoc-json/blanket_impls.rs b/tests/rustdoc-json/blanket_impls.rs
index bc2c98dcbb7..f2acabbe372 100644
--- a/tests/rustdoc-json/blanket_impls.rs
+++ b/tests/rustdoc-json/blanket_impls.rs
@@ -3,6 +3,6 @@
 #![no_std]
 
 //@ has "$.index[*][?(@.name=='Error')].inner.assoc_type"
-//@ has "$.index[*][?(@.name=='Error')].inner.assoc_type.default.resolved_path"
-//@ has "$.index[*][?(@.name=='Error')].inner.assoc_type.default.resolved_path.name" \"Infallible\"
+//@ has "$.index[*][?(@.name=='Error')].inner.assoc_type.type.resolved_path"
+//@ has "$.index[*][?(@.name=='Error')].inner.assoc_type.type.resolved_path.name" \"Infallible\"
 pub struct ForBlanketTryFromImpl;
diff --git a/tests/rustdoc-json/enums/kind.rs b/tests/rustdoc-json/enums/kind.rs
index ef3d9363d64..2e0fb3101a3 100644
--- a/tests/rustdoc-json/enums/kind.rs
+++ b/tests/rustdoc-json/enums/kind.rs
@@ -5,7 +5,7 @@ pub enum Foo {
     //@ is "$.index[*][?(@.name=='Unit')].inner.variant.kind" '"plain"'
     Unit,
     //@ set Named = "$.index[*][?(@.name=='Named')].id"
-    //@ is "$.index[*][?(@.name=='Named')].inner.variant.kind.struct" '{"fields": [], "fields_stripped": false}'
+    //@ is "$.index[*][?(@.name=='Named')].inner.variant.kind.struct" '{"fields": [], "has_stripped_fields": false}'
     Named {},
     //@ set Tuple = "$.index[*][?(@.name=='Tuple')].id"
     //@ is "$.index[*][?(@.name=='Tuple')].inner.variant.kind.tuple" []
@@ -13,7 +13,7 @@ pub enum Foo {
     //@ set NamedField = "$.index[*][?(@.name=='NamedField')].id"
     //@ set x = "$.index[*][?(@.name=='x' && @.inner.struct_field)].id"
     //@ is "$.index[*][?(@.name=='NamedField')].inner.variant.kind.struct.fields[*]" $x
-    //@ is "$.index[*][?(@.name=='NamedField')].inner.variant.kind.struct.fields_stripped" false
+    //@ is "$.index[*][?(@.name=='NamedField')].inner.variant.kind.struct.has_stripped_fields" false
     NamedField { x: i32 },
     //@ set TupleField = "$.index[*][?(@.name=='TupleField')].id"
     //@ set tup_field = "$.index[*][?(@.name=='0' && @.inner.struct_field)].id"
diff --git a/tests/rustdoc-json/enums/struct_field_hidden.rs b/tests/rustdoc-json/enums/struct_field_hidden.rs
index b724f9abb71..2184f58b1da 100644
--- a/tests/rustdoc-json/enums/struct_field_hidden.rs
+++ b/tests/rustdoc-json/enums/struct_field_hidden.rs
@@ -9,7 +9,7 @@ pub enum Foo {
         //@ set y = "$.index[*][?(@.name=='y')].id"
         y: i32,
     },
-    //@ is "$.index[*][?(@.name=='Variant')].inner.variant.kind.struct.fields_stripped" true
+    //@ is "$.index[*][?(@.name=='Variant')].inner.variant.kind.struct.has_stripped_fields" true
     //@ is "$.index[*][?(@.name=='Variant')].inner.variant.kind.struct.fields[0]" $b
     //@ is "$.index[*][?(@.name=='Variant')].inner.variant.kind.struct.fields[1]" $y
     //@ count "$.index[*][?(@.name=='Variant')].inner.variant.kind.struct.fields[*]" 2
diff --git a/tests/rustdoc-json/enums/use_glob.rs b/tests/rustdoc-json/enums/use_glob.rs
index 61766d2a629..2631b43da8e 100644
--- a/tests/rustdoc-json/enums/use_glob.rs
+++ b/tests/rustdoc-json/enums/use_glob.rs
@@ -7,9 +7,9 @@ pub enum Color {
     Blue,
 }
 
-//@ set use_Color = "$.index[*][?(@.inner.import)].id"
-//@ is "$.index[*][?(@.inner.import)].inner.import.id" $Color
-//@ is "$.index[*][?(@.inner.import)].inner.import.glob" true
+//@ set use_Color = "$.index[*][?(@.inner.use)].id"
+//@ is "$.index[*][?(@.inner.use)].inner.use.id" $Color
+//@ is "$.index[*][?(@.inner.use)].inner.use.is_glob" true
 pub use Color::*;
 
 //@ ismany "$.index[*][?(@.name == 'use_glob')].inner.module.items[*]" $Color $use_Color
diff --git a/tests/rustdoc-json/enums/use_variant.rs b/tests/rustdoc-json/enums/use_variant.rs
index 9010d616493..6d3322e0ba9 100644
--- a/tests/rustdoc-json/enums/use_variant.rs
+++ b/tests/rustdoc-json/enums/use_variant.rs
@@ -5,8 +5,8 @@ pub enum AlwaysNone {
 }
 //@ is "$.index[*][?(@.name == 'AlwaysNone')].inner.enum.variants[*]" $None
 
-//@ set use_None = "$.index[*][?(@.inner.import)].id"
-//@ is "$.index[*][?(@.inner.import)].inner.import.id" $None
+//@ set use_None = "$.index[*][?(@.inner.use)].id"
+//@ is "$.index[*][?(@.inner.use)].inner.use.id" $None
 pub use AlwaysNone::None;
 
 //@ ismany "$.index[*][?(@.name == 'use_variant')].inner.module.items[*]" $AlwaysNone $use_None
diff --git a/tests/rustdoc-json/enums/use_variant_foreign.rs b/tests/rustdoc-json/enums/use_variant_foreign.rs
index 0f3f16ff835..a9ad61b9fe3 100644
--- a/tests/rustdoc-json/enums/use_variant_foreign.rs
+++ b/tests/rustdoc-json/enums/use_variant_foreign.rs
@@ -2,7 +2,7 @@
 
 extern crate color;
 
-//@ has "$.index[*].inner.import[?(@.name == 'Red')]"
+//@ has "$.index[*].inner.use[?(@.name == 'Red')]"
 pub use color::Color::Red;
 
 //@ !has "$.index[*][?(@.name == 'Red')]"
diff --git a/tests/rustdoc-json/fn_pointer/generics.rs b/tests/rustdoc-json/fn_pointer/generics.rs
index 9f5d23ae421..7d64e490a22 100644
--- a/tests/rustdoc-json/fn_pointer/generics.rs
+++ b/tests/rustdoc-json/fn_pointer/generics.rs
@@ -1,9 +1,9 @@
 // ignore-tidy-linelength
 
-//@ count "$.index[*][?(@.name=='WithHigherRankTraitBounds')].inner.type_alias.type.function_pointer.decl.inputs[*]" 1
-//@ is "$.index[*][?(@.name=='WithHigherRankTraitBounds')].inner.type_alias.type.function_pointer.decl.inputs[0][0]" '"val"'
-//@ is "$.index[*][?(@.name=='WithHigherRankTraitBounds')].inner.type_alias.type.function_pointer.decl.inputs[0][1].borrowed_ref.lifetime" \"\'c\"
-//@ is "$.index[*][?(@.name=='WithHigherRankTraitBounds')].inner.type_alias.type.function_pointer.decl.output.primitive" \"i32\"
+//@ count "$.index[*][?(@.name=='WithHigherRankTraitBounds')].inner.type_alias.type.function_pointer.sig.inputs[*]" 1
+//@ is "$.index[*][?(@.name=='WithHigherRankTraitBounds')].inner.type_alias.type.function_pointer.sig.inputs[0][0]" '"val"'
+//@ is "$.index[*][?(@.name=='WithHigherRankTraitBounds')].inner.type_alias.type.function_pointer.sig.inputs[0][1].borrowed_ref.lifetime" \"\'c\"
+//@ is "$.index[*][?(@.name=='WithHigherRankTraitBounds')].inner.type_alias.type.function_pointer.sig.output.primitive" \"i32\"
 //@ count "$.index[*][?(@.name=='WithHigherRankTraitBounds')].inner.type_alias.type.function_pointer.generic_params[*]" 1
 //@ is "$.index[*][?(@.name=='WithHigherRankTraitBounds')].inner.type_alias.type.function_pointer.generic_params[0].name" \"\'c\"
 //@ is "$.index[*][?(@.name=='WithHigherRankTraitBounds')].inner.type_alias.type.function_pointer.generic_params[0].kind" '{ "lifetime": { "outlives": [] } }'
diff --git a/tests/rustdoc-json/fn_pointer/qualifiers.rs b/tests/rustdoc-json/fn_pointer/qualifiers.rs
index 9c0e6c0ccf1..6f03cf58522 100644
--- a/tests/rustdoc-json/fn_pointer/qualifiers.rs
+++ b/tests/rustdoc-json/fn_pointer/qualifiers.rs
@@ -1,11 +1,11 @@
 // ignore-tidy-linelength
 
-//@ is "$.index[*][?(@.name=='FnPointer')].inner.type_alias.type.function_pointer.header.unsafe" false
-//@ is "$.index[*][?(@.name=='FnPointer')].inner.type_alias.type.function_pointer.header.const" false
-//@ is "$.index[*][?(@.name=='FnPointer')].inner.type_alias.type.function_pointer.header.async" false
+//@ is "$.index[*][?(@.name=='FnPointer')].inner.type_alias.type.function_pointer.header.is_unsafe" false
+//@ is "$.index[*][?(@.name=='FnPointer')].inner.type_alias.type.function_pointer.header.is_const" false
+//@ is "$.index[*][?(@.name=='FnPointer')].inner.type_alias.type.function_pointer.header.is_async" false
 pub type FnPointer = fn();
 
-//@ is "$.index[*][?(@.name=='UnsafePointer')].inner.type_alias.type.function_pointer.header.unsafe" true
-//@ is "$.index[*][?(@.name=='UnsafePointer')].inner.type_alias.type.function_pointer.header.const" false
-//@ is "$.index[*][?(@.name=='UnsafePointer')].inner.type_alias.type.function_pointer.header.async" false
+//@ is "$.index[*][?(@.name=='UnsafePointer')].inner.type_alias.type.function_pointer.header.is_unsafe" true
+//@ is "$.index[*][?(@.name=='UnsafePointer')].inner.type_alias.type.function_pointer.header.is_const" false
+//@ is "$.index[*][?(@.name=='UnsafePointer')].inner.type_alias.type.function_pointer.header.is_async" false
 pub type UnsafePointer = unsafe fn();
diff --git a/tests/rustdoc-json/fns/async_return.rs b/tests/rustdoc-json/fns/async_return.rs
index e029c72df21..18a8a586e76 100644
--- a/tests/rustdoc-json/fns/async_return.rs
+++ b/tests/rustdoc-json/fns/async_return.rs
@@ -5,30 +5,30 @@
 
 use std::future::Future;
 
-//@ is "$.index[*][?(@.name=='get_int')].inner.function.decl.output.primitive" \"i32\"
-//@ is "$.index[*][?(@.name=='get_int')].inner.function.header.async" false
+//@ is "$.index[*][?(@.name=='get_int')].inner.function.sig.output.primitive" \"i32\"
+//@ is "$.index[*][?(@.name=='get_int')].inner.function.header.is_async" false
 pub fn get_int() -> i32 {
     42
 }
 
-//@ is "$.index[*][?(@.name=='get_int_async')].inner.function.decl.output.primitive" \"i32\"
-//@ is "$.index[*][?(@.name=='get_int_async')].inner.function.header.async" true
+//@ is "$.index[*][?(@.name=='get_int_async')].inner.function.sig.output.primitive" \"i32\"
+//@ is "$.index[*][?(@.name=='get_int_async')].inner.function.header.is_async" true
 pub async fn get_int_async() -> i32 {
     42
 }
 
-//@ is "$.index[*][?(@.name=='get_int_future')].inner.function.decl.output.impl_trait[0].trait_bound.trait.name" '"Future"'
-//@ is "$.index[*][?(@.name=='get_int_future')].inner.function.decl.output.impl_trait[0].trait_bound.trait.args.angle_bracketed.bindings[0].name" '"Output"'
-//@ is "$.index[*][?(@.name=='get_int_future')].inner.function.decl.output.impl_trait[0].trait_bound.trait.args.angle_bracketed.bindings[0].binding.equality.type.primitive"  \"i32\"
-//@ is "$.index[*][?(@.name=='get_int_future')].inner.function.header.async" false
+//@ is "$.index[*][?(@.name=='get_int_future')].inner.function.sig.output.impl_trait[0].trait_bound.trait.name" '"Future"'
+//@ is "$.index[*][?(@.name=='get_int_future')].inner.function.sig.output.impl_trait[0].trait_bound.trait.args.angle_bracketed.constraints[0].name" '"Output"'
+//@ is "$.index[*][?(@.name=='get_int_future')].inner.function.sig.output.impl_trait[0].trait_bound.trait.args.angle_bracketed.constraints[0].binding.equality.type.primitive"  \"i32\"
+//@ is "$.index[*][?(@.name=='get_int_future')].inner.function.header.is_async" false
 pub fn get_int_future() -> impl Future<Output = i32> {
     async { 42 }
 }
 
-//@ is "$.index[*][?(@.name=='get_int_future_async')].inner.function.decl.output.impl_trait[0].trait_bound.trait.name" '"Future"'
-//@ is "$.index[*][?(@.name=='get_int_future_async')].inner.function.decl.output.impl_trait[0].trait_bound.trait.args.angle_bracketed.bindings[0].name" '"Output"'
-//@ is "$.index[*][?(@.name=='get_int_future_async')].inner.function.decl.output.impl_trait[0].trait_bound.trait.args.angle_bracketed.bindings[0].binding.equality.type.primitive" \"i32\"
-//@ is "$.index[*][?(@.name=='get_int_future_async')].inner.function.header.async" true
+//@ is "$.index[*][?(@.name=='get_int_future_async')].inner.function.sig.output.impl_trait[0].trait_bound.trait.name" '"Future"'
+//@ is "$.index[*][?(@.name=='get_int_future_async')].inner.function.sig.output.impl_trait[0].trait_bound.trait.args.angle_bracketed.constraints[0].name" '"Output"'
+//@ is "$.index[*][?(@.name=='get_int_future_async')].inner.function.sig.output.impl_trait[0].trait_bound.trait.args.angle_bracketed.constraints[0].binding.equality.type.primitive" \"i32\"
+//@ is "$.index[*][?(@.name=='get_int_future_async')].inner.function.header.is_async" true
 pub async fn get_int_future_async() -> impl Future<Output = i32> {
     async { 42 }
 }
diff --git a/tests/rustdoc-json/fns/extern_c_variadic.rs b/tests/rustdoc-json/fns/extern_c_variadic.rs
index defe66345e8..8e9085640e0 100644
--- a/tests/rustdoc-json/fns/extern_c_variadic.rs
+++ b/tests/rustdoc-json/fns/extern_c_variadic.rs
@@ -1,6 +1,6 @@
 extern "C" {
-    //@ is "$.index[*][?(@.name == 'not_variadic')].inner.function.decl.c_variadic" false
+    //@ is "$.index[*][?(@.name == 'not_variadic')].inner.function.sig.is_c_variadic" false
     pub fn not_variadic(_: i32);
-    //@ is "$.index[*][?(@.name == 'variadic')].inner.function.decl.c_variadic" true
+    //@ is "$.index[*][?(@.name == 'variadic')].inner.function.sig.is_c_variadic" true
     pub fn variadic(_: i32, ...);
 }
diff --git a/tests/rustdoc-json/fns/generic_args.rs b/tests/rustdoc-json/fns/generic_args.rs
index 75c5fcbb01f..b5412446ab4 100644
--- a/tests/rustdoc-json/fns/generic_args.rs
+++ b/tests/rustdoc-json/fns/generic_args.rs
@@ -12,27 +12,27 @@ pub trait GenericFoo<'a> {}
 //@ is "$.index[*][?(@.name=='generics')].inner.function.generics.params[0].kind.type.default" 'null'
 //@ count "$.index[*][?(@.name=='generics')].inner.function.generics.params[0].kind.type.bounds[*]" 1
 //@ is "$.index[*][?(@.name=='generics')].inner.function.generics.params[0].kind.type.bounds[0].trait_bound.trait.id" '$foo'
-//@ count "$.index[*][?(@.name=='generics')].inner.function.decl.inputs[*]" 1
-//@ is "$.index[*][?(@.name=='generics')].inner.function.decl.inputs[0][0]" '"f"'
-//@ is "$.index[*][?(@.name=='generics')].inner.function.decl.inputs[0][1].generic" '"F"'
+//@ count "$.index[*][?(@.name=='generics')].inner.function.sig.inputs[*]" 1
+//@ is "$.index[*][?(@.name=='generics')].inner.function.sig.inputs[0][0]" '"f"'
+//@ is "$.index[*][?(@.name=='generics')].inner.function.sig.inputs[0][1].generic" '"F"'
 pub fn generics<F: Foo>(f: F) {}
 
 //@ is "$.index[*][?(@.name=='impl_trait')].inner.function.generics.where_predicates" "[]"
 //@ count "$.index[*][?(@.name=='impl_trait')].inner.function.generics.params[*]" 1
 //@ is "$.index[*][?(@.name=='impl_trait')].inner.function.generics.params[0].name" '"impl Foo"'
 //@ is "$.index[*][?(@.name=='impl_trait')].inner.function.generics.params[0].kind.type.bounds[0].trait_bound.trait.id" $foo
-//@ count "$.index[*][?(@.name=='impl_trait')].inner.function.decl.inputs[*]" 1
-//@ is "$.index[*][?(@.name=='impl_trait')].inner.function.decl.inputs[0][0]" '"f"'
-//@ count "$.index[*][?(@.name=='impl_trait')].inner.function.decl.inputs[0][1].impl_trait[*]" 1
-//@ is "$.index[*][?(@.name=='impl_trait')].inner.function.decl.inputs[0][1].impl_trait[0].trait_bound.trait.id" $foo
+//@ count "$.index[*][?(@.name=='impl_trait')].inner.function.sig.inputs[*]" 1
+//@ is "$.index[*][?(@.name=='impl_trait')].inner.function.sig.inputs[0][0]" '"f"'
+//@ count "$.index[*][?(@.name=='impl_trait')].inner.function.sig.inputs[0][1].impl_trait[*]" 1
+//@ is "$.index[*][?(@.name=='impl_trait')].inner.function.sig.inputs[0][1].impl_trait[0].trait_bound.trait.id" $foo
 pub fn impl_trait(f: impl Foo) {}
 
 //@ count "$.index[*][?(@.name=='where_clase')].inner.function.generics.params[*]" 3
 //@ is "$.index[*][?(@.name=='where_clase')].inner.function.generics.params[0].name" '"F"'
-//@ is "$.index[*][?(@.name=='where_clase')].inner.function.generics.params[0].kind" '{"type": {"bounds": [], "default": null, "synthetic": false}}'
-//@ count "$.index[*][?(@.name=='where_clase')].inner.function.decl.inputs[*]" 3
-//@ is "$.index[*][?(@.name=='where_clase')].inner.function.decl.inputs[0][0]" '"f"'
-//@ is "$.index[*][?(@.name=='where_clase')].inner.function.decl.inputs[0][1].generic" '"F"'
+//@ is "$.index[*][?(@.name=='where_clase')].inner.function.generics.params[0].kind" '{"type": {"bounds": [], "default": null, "is_synthetic": false}}'
+//@ count "$.index[*][?(@.name=='where_clase')].inner.function.sig.inputs[*]" 3
+//@ is "$.index[*][?(@.name=='where_clase')].inner.function.sig.inputs[0][0]" '"f"'
+//@ is "$.index[*][?(@.name=='where_clase')].inner.function.sig.inputs[0][1].generic" '"F"'
 //@ count "$.index[*][?(@.name=='where_clase')].inner.function.generics.where_predicates[*]" 3
 
 //@ is "$.index[*][?(@.name=='where_clase')].inner.function.generics.where_predicates[0].bound_predicate.type.generic" \"F\"
diff --git a/tests/rustdoc-json/fns/generic_returns.rs b/tests/rustdoc-json/fns/generic_returns.rs
index 07dc691b933..2f23801fc3f 100644
--- a/tests/rustdoc-json/fns/generic_returns.rs
+++ b/tests/rustdoc-json/fns/generic_returns.rs
@@ -5,9 +5,9 @@
 //@ set foo = "$.index[*][?(@.name=='Foo')].id"
 pub trait Foo {}
 
-//@ is "$.index[*][?(@.name=='get_foo')].inner.function.decl.inputs" []
-//@ count "$.index[*][?(@.name=='get_foo')].inner.function.decl.output.impl_trait[*]" 1
-//@ is "$.index[*][?(@.name=='get_foo')].inner.function.decl.output.impl_trait[0].trait_bound.trait.id" $foo
+//@ is "$.index[*][?(@.name=='get_foo')].inner.function.sig.inputs" []
+//@ count "$.index[*][?(@.name=='get_foo')].inner.function.sig.output.impl_trait[*]" 1
+//@ is "$.index[*][?(@.name=='get_foo')].inner.function.sig.output.impl_trait[0].trait_bound.trait.id" $foo
 pub fn get_foo() -> impl Foo {
     Fooer {}
 }
diff --git a/tests/rustdoc-json/fns/generics.rs b/tests/rustdoc-json/fns/generics.rs
index 43fc7279ded..f2064fd1e93 100644
--- a/tests/rustdoc-json/fns/generics.rs
+++ b/tests/rustdoc-json/fns/generics.rs
@@ -6,17 +6,17 @@ pub trait Wham {}
 //@ is    "$.index[*][?(@.name=='one_generic_param_fn')].inner.function.generics.where_predicates" []
 //@ count "$.index[*][?(@.name=='one_generic_param_fn')].inner.function.generics.params[*]" 1
 //@ is    "$.index[*][?(@.name=='one_generic_param_fn')].inner.function.generics.params[0].name" '"T"'
-//@ is    "$.index[*][?(@.name=='one_generic_param_fn')].inner.function.generics.params[0].kind.type.synthetic" false
+//@ is    "$.index[*][?(@.name=='one_generic_param_fn')].inner.function.generics.params[0].kind.type.is_synthetic" false
 //@ is    "$.index[*][?(@.name=='one_generic_param_fn')].inner.function.generics.params[0].kind.type.bounds[0].trait_bound.trait.id" $wham_id
-//@ is    "$.index[*][?(@.name=='one_generic_param_fn')].inner.function.decl.inputs" '[["w", {"generic": "T"}]]'
+//@ is    "$.index[*][?(@.name=='one_generic_param_fn')].inner.function.sig.inputs" '[["w", {"generic": "T"}]]'
 pub fn one_generic_param_fn<T: Wham>(w: T) {}
 
 //@ is    "$.index[*][?(@.name=='one_synthetic_generic_param_fn')].inner.function.generics.where_predicates" []
 //@ count "$.index[*][?(@.name=='one_synthetic_generic_param_fn')].inner.function.generics.params[*]" 1
 //@ is    "$.index[*][?(@.name=='one_synthetic_generic_param_fn')].inner.function.generics.params[0].name" '"impl Wham"'
-//@ is    "$.index[*][?(@.name=='one_synthetic_generic_param_fn')].inner.function.generics.params[0].kind.type.synthetic" true
+//@ is    "$.index[*][?(@.name=='one_synthetic_generic_param_fn')].inner.function.generics.params[0].kind.type.is_synthetic" true
 //@ is    "$.index[*][?(@.name=='one_synthetic_generic_param_fn')].inner.function.generics.params[0].kind.type.bounds[0].trait_bound.trait.id" $wham_id
-//@ count "$.index[*][?(@.name=='one_synthetic_generic_param_fn')].inner.function.decl.inputs[*]" 1
-//@ is    "$.index[*][?(@.name=='one_synthetic_generic_param_fn')].inner.function.decl.inputs[0][0]" '"w"'
-//@ is    "$.index[*][?(@.name=='one_synthetic_generic_param_fn')].inner.function.decl.inputs[0][1].impl_trait[0].trait_bound.trait.id" $wham_id
+//@ count "$.index[*][?(@.name=='one_synthetic_generic_param_fn')].inner.function.sig.inputs[*]" 1
+//@ is    "$.index[*][?(@.name=='one_synthetic_generic_param_fn')].inner.function.sig.inputs[0][0]" '"w"'
+//@ is    "$.index[*][?(@.name=='one_synthetic_generic_param_fn')].inner.function.sig.inputs[0][1].impl_trait[0].trait_bound.trait.id" $wham_id
 pub fn one_synthetic_generic_param_fn(w: impl Wham) {}
diff --git a/tests/rustdoc-json/fns/pattern_arg.rs b/tests/rustdoc-json/fns/pattern_arg.rs
index 3fa423bcefd..d2a00f47438 100644
--- a/tests/rustdoc-json/fns/pattern_arg.rs
+++ b/tests/rustdoc-json/fns/pattern_arg.rs
@@ -1,7 +1,7 @@
-//@ is "$.index[*][?(@.name=='fst')].inner.function.decl.inputs[0][0]" '"(x, _)"'
+//@ is "$.index[*][?(@.name=='fst')].inner.function.sig.inputs[0][0]" '"(x, _)"'
 pub fn fst<X, Y>((x, _): (X, Y)) -> X {
     x
 }
 
-//@ is "$.index[*][?(@.name=='drop_int')].inner.function.decl.inputs[0][0]" '"_"'
+//@ is "$.index[*][?(@.name=='drop_int')].inner.function.sig.inputs[0][0]" '"_"'
 pub fn drop_int(_: i32) {}
diff --git a/tests/rustdoc-json/fns/qualifiers.rs b/tests/rustdoc-json/fns/qualifiers.rs
index beb1b4ccd10..67e49f0780a 100644
--- a/tests/rustdoc-json/fns/qualifiers.rs
+++ b/tests/rustdoc-json/fns/qualifiers.rs
@@ -1,33 +1,33 @@
 //@ edition:2018
 
-//@ is "$.index[*][?(@.name=='nothing_fn')].inner.function.header.async" false
-//@ is "$.index[*][?(@.name=='nothing_fn')].inner.function.header.const"  false
-//@ is "$.index[*][?(@.name=='nothing_fn')].inner.function.header.unsafe" false
+//@ is "$.index[*][?(@.name=='nothing_fn')].inner.function.header.is_async" false
+//@ is "$.index[*][?(@.name=='nothing_fn')].inner.function.header.is_const"  false
+//@ is "$.index[*][?(@.name=='nothing_fn')].inner.function.header.is_unsafe" false
 pub fn nothing_fn() {}
 
-//@ is "$.index[*][?(@.name=='unsafe_fn')].inner.function.header.async"  false
-//@ is "$.index[*][?(@.name=='unsafe_fn')].inner.function.header.const"  false
-//@ is "$.index[*][?(@.name=='unsafe_fn')].inner.function.header.unsafe" true
+//@ is "$.index[*][?(@.name=='unsafe_fn')].inner.function.header.is_async"  false
+//@ is "$.index[*][?(@.name=='unsafe_fn')].inner.function.header.is_const"  false
+//@ is "$.index[*][?(@.name=='unsafe_fn')].inner.function.header.is_unsafe" true
 pub unsafe fn unsafe_fn() {}
 
-//@ is "$.index[*][?(@.name=='const_fn')].inner.function.header.async"  false
-//@ is "$.index[*][?(@.name=='const_fn')].inner.function.header.const"  true
-//@ is "$.index[*][?(@.name=='const_fn')].inner.function.header.unsafe" false
+//@ is "$.index[*][?(@.name=='const_fn')].inner.function.header.is_async"  false
+//@ is "$.index[*][?(@.name=='const_fn')].inner.function.header.is_const"  true
+//@ is "$.index[*][?(@.name=='const_fn')].inner.function.header.is_unsafe" false
 pub const fn const_fn() {}
 
-//@ is "$.index[*][?(@.name=='async_fn')].inner.function.header.async"  true
-//@ is "$.index[*][?(@.name=='async_fn')].inner.function.header.const"  false
-//@ is "$.index[*][?(@.name=='async_fn')].inner.function.header.unsafe" false
+//@ is "$.index[*][?(@.name=='async_fn')].inner.function.header.is_async"  true
+//@ is "$.index[*][?(@.name=='async_fn')].inner.function.header.is_const"  false
+//@ is "$.index[*][?(@.name=='async_fn')].inner.function.header.is_unsafe" false
 pub async fn async_fn() {}
 
-//@ is "$.index[*][?(@.name=='async_unsafe_fn')].inner.function.header.async"  true
-//@ is "$.index[*][?(@.name=='async_unsafe_fn')].inner.function.header.const"  false
-//@ is "$.index[*][?(@.name=='async_unsafe_fn')].inner.function.header.unsafe" true
+//@ is "$.index[*][?(@.name=='async_unsafe_fn')].inner.function.header.is_async"  true
+//@ is "$.index[*][?(@.name=='async_unsafe_fn')].inner.function.header.is_const"  false
+//@ is "$.index[*][?(@.name=='async_unsafe_fn')].inner.function.header.is_unsafe" true
 pub async unsafe fn async_unsafe_fn() {}
 
-//@ is "$.index[*][?(@.name=='const_unsafe_fn')].inner.function.header.async"  false
-//@ is "$.index[*][?(@.name=='const_unsafe_fn')].inner.function.header.const"  true
-//@ is "$.index[*][?(@.name=='const_unsafe_fn')].inner.function.header.unsafe" true
+//@ is "$.index[*][?(@.name=='const_unsafe_fn')].inner.function.header.is_async"  false
+//@ is "$.index[*][?(@.name=='const_unsafe_fn')].inner.function.header.is_const"  true
+//@ is "$.index[*][?(@.name=='const_unsafe_fn')].inner.function.header.is_unsafe" true
 pub const unsafe fn const_unsafe_fn() {}
 
 // It's impossible for a function to be both const and async, so no test for that
diff --git a/tests/rustdoc-json/fns/return_type_alias.rs b/tests/rustdoc-json/fns/return_type_alias.rs
index 67bc46a8740..d60c4b68258 100644
--- a/tests/rustdoc-json/fns/return_type_alias.rs
+++ b/tests/rustdoc-json/fns/return_type_alias.rs
@@ -3,7 +3,7 @@
 ///@ set foo = "$.index[*][?(@.name=='Foo')].id"
 pub type Foo = i32;
 
-//@ is "$.index[*][?(@.name=='demo')].inner.function.decl.output.resolved_path.id" $foo
+//@ is "$.index[*][?(@.name=='demo')].inner.function.sig.output.resolved_path.id" $foo
 pub fn demo() -> Foo {
     42
 }
diff --git a/tests/rustdoc-json/generic-associated-types/gats.rs b/tests/rustdoc-json/generic-associated-types/gats.rs
index 8a38230bb5d..fdf605e9287 100644
--- a/tests/rustdoc-json/generic-associated-types/gats.rs
+++ b/tests/rustdoc-json/generic-associated-types/gats.rs
@@ -13,10 +13,10 @@ pub trait LendingIterator {
     where
         Self: 'a;
 
-    //@ count "$.index[*][?(@.name=='lending_next')].inner.function.decl.output.qualified_path.args.angle_bracketed.args[*]" 1
-    //@ count "$.index[*][?(@.name=='lending_next')].inner.function.decl.output.qualified_path.args.angle_bracketed.bindings[*]" 0
-    //@ is "$.index[*][?(@.name=='lending_next')].inner.function.decl.output.qualified_path.self_type.generic" \"Self\"
-    //@ is "$.index[*][?(@.name=='lending_next')].inner.function.decl.output.qualified_path.name" \"LendingItem\"
+    //@ count "$.index[*][?(@.name=='lending_next')].inner.function.sig.output.qualified_path.args.angle_bracketed.args[*]" 1
+    //@ count "$.index[*][?(@.name=='lending_next')].inner.function.sig.output.qualified_path.args.angle_bracketed.bindings[*]" 0
+    //@ is "$.index[*][?(@.name=='lending_next')].inner.function.sig.output.qualified_path.self_type.generic" \"Self\"
+    //@ is "$.index[*][?(@.name=='lending_next')].inner.function.sig.output.qualified_path.name" \"LendingItem\"
     fn lending_next<'a>(&'a self) -> Self::LendingItem<'a>;
 }
 
@@ -26,9 +26,9 @@ pub trait Iterator {
     //@ count "$.index[*][?(@.name=='Item')].inner.assoc_type.bounds[*]" 1
     type Item: Display;
 
-    //@ count "$.index[*][?(@.name=='next')].inner.function.decl.output.qualified_path.args.angle_bracketed.args[*]" 0
-    //@ count "$.index[*][?(@.name=='next')].inner.function.decl.output.qualified_path.args.angle_bracketed.bindings[*]" 0
-    //@ is "$.index[*][?(@.name=='next')].inner.function.decl.output.qualified_path.self_type.generic" \"Self\"
-    //@ is "$.index[*][?(@.name=='next')].inner.function.decl.output.qualified_path.name" \"Item\"
+    //@ count "$.index[*][?(@.name=='next')].inner.function.sig.output.qualified_path.args.angle_bracketed.args[*]" 0
+    //@ count "$.index[*][?(@.name=='next')].inner.function.sig.output.qualified_path.args.angle_bracketed.bindings[*]" 0
+    //@ is "$.index[*][?(@.name=='next')].inner.function.sig.output.qualified_path.self_type.generic" \"Self\"
+    //@ is "$.index[*][?(@.name=='next')].inner.function.sig.output.qualified_path.name" \"Item\"
     fn next<'a>(&'a self) -> Self::Item;
 }
diff --git a/tests/rustdoc-json/glob_import.rs b/tests/rustdoc-json/glob_import.rs
index a67a99a37cb..b63e5dadd9e 100644
--- a/tests/rustdoc-json/glob_import.rs
+++ b/tests/rustdoc-json/glob_import.rs
@@ -3,7 +3,7 @@
 #![no_std]
 
 //@ has "$.index[*][?(@.name=='glob')]"
-//@ has "$.index[*][?(@.inner.import)].inner.import.name" \"*\"
+//@ has "$.index[*][?(@.inner.use)].inner.use.name" \"*\"
 
 mod m1 {
     pub fn f() {}
diff --git a/tests/rustdoc-json/impl-trait-in-assoc-type.rs b/tests/rustdoc-json/impl-trait-in-assoc-type.rs
index f02e38ca393..907a0f6c603 100644
--- a/tests/rustdoc-json/impl-trait-in-assoc-type.rs
+++ b/tests/rustdoc-json/impl-trait-in-assoc-type.rs
@@ -9,11 +9,11 @@ impl IntoIterator for AlwaysTrue {
     /// type Item
     type Item = bool;
 
-    //@ count '$.index[*][?(@.docs=="type IntoIter")].inner.assoc_type.default.impl_trait[*]' 1
-    //@ is    '$.index[*][?(@.docs=="type IntoIter")].inner.assoc_type.default.impl_trait[0].trait_bound.trait.name' '"Iterator"'
-    //@ count '$.index[*][?(@.docs=="type IntoIter")].inner.assoc_type.default.impl_trait[0].trait_bound.trait.args.angle_bracketed.bindings[*]' 1
-    //@ is    '$.index[*][?(@.docs=="type IntoIter")].inner.assoc_type.default.impl_trait[0].trait_bound.trait.args.angle_bracketed.bindings[0].name' '"Item"'
-    //@ is    '$.index[*][?(@.docs=="type IntoIter")].inner.assoc_type.default.impl_trait[0].trait_bound.trait.args.angle_bracketed.bindings[0].binding.equality.type.primitive' '"bool"'
+    //@ count '$.index[*][?(@.docs=="type IntoIter")].inner.assoc_type.type.impl_trait[*]' 1
+    //@ is    '$.index[*][?(@.docs=="type IntoIter")].inner.assoc_type.type.impl_trait[0].trait_bound.trait.name' '"Iterator"'
+    //@ count '$.index[*][?(@.docs=="type IntoIter")].inner.assoc_type.type.impl_trait[0].trait_bound.trait.args.angle_bracketed.constraints[*]' 1
+    //@ is    '$.index[*][?(@.docs=="type IntoIter")].inner.assoc_type.type.impl_trait[0].trait_bound.trait.args.angle_bracketed.constraints[0].name' '"Item"'
+    //@ is    '$.index[*][?(@.docs=="type IntoIter")].inner.assoc_type.type.impl_trait[0].trait_bound.trait.args.angle_bracketed.constraints[0].binding.equality.type.primitive' '"bool"'
 
     //@ set IntoIter = '$.index[*][?(@.docs=="type IntoIter")].id'
     /// type IntoIter
diff --git a/tests/rustdoc-json/impl-trait-precise-capturing.rs b/tests/rustdoc-json/impl-trait-precise-capturing.rs
index 0c116a10290..52252560e6f 100644
--- a/tests/rustdoc-json/impl-trait-precise-capturing.rs
+++ b/tests/rustdoc-json/impl-trait-precise-capturing.rs
@@ -1,4 +1,4 @@
-//@ is "$.index[*][?(@.name=='hello')].inner.function.decl.output.impl_trait[1].use[0]" \"\'a\"
-//@ is "$.index[*][?(@.name=='hello')].inner.function.decl.output.impl_trait[1].use[1]" \"T\"
-//@ is "$.index[*][?(@.name=='hello')].inner.function.decl.output.impl_trait[1].use[2]" \"N\"
+//@ is "$.index[*][?(@.name=='hello')].inner.function.sig.output.impl_trait[1].use[0]" \"\'a\"
+//@ is "$.index[*][?(@.name=='hello')].inner.function.sig.output.impl_trait[1].use[1]" \"T\"
+//@ is "$.index[*][?(@.name=='hello')].inner.function.sig.output.impl_trait[1].use[2]" \"N\"
 pub fn hello<'a, T, const N: usize>() -> impl Sized + use<'a, T, N> {}
diff --git a/tests/rustdoc-json/impls/auto.rs b/tests/rustdoc-json/impls/auto.rs
index 84a1e6ed7d5..e14c935b23b 100644
--- a/tests/rustdoc-json/impls/auto.rs
+++ b/tests/rustdoc-json/impls/auto.rs
@@ -18,5 +18,5 @@ impl Foo {
 //@ is "$.index[*][?(@.docs=='has span')].span.begin" "[13, 0]"
 //@ is "$.index[*][?(@.docs=='has span')].span.end" "[15, 1]"
 // FIXME: this doesn't work due to https://github.com/freestrings/jsonpath/issues/91
-// is "$.index[*][?(@.inner.impl.synthetic==true)].span" null
+// is "$.index[*][?(@.inner.impl.is_synthetic==true)].span" null
 pub struct Foo;
diff --git a/tests/rustdoc-json/impls/foreign_for_local.rs b/tests/rustdoc-json/impls/foreign_for_local.rs
index 20690f26851..1347f954cad 100644
--- a/tests/rustdoc-json/impls/foreign_for_local.rs
+++ b/tests/rustdoc-json/impls/foreign_for_local.rs
@@ -3,7 +3,7 @@ extern crate foreign_trait;
 
 /// ForeignTrait id hack
 pub use foreign_trait::ForeignTrait as _;
-//@ set ForeignTrait = "$.index[*][?(@.docs=='ForeignTrait id hack')].inner.import.id"
+//@ set ForeignTrait = "$.index[*][?(@.docs=='ForeignTrait id hack')].inner.use.id"
 
 pub struct LocalStruct;
 //@ set LocalStruct = "$.index[*][?(@.name=='LocalStruct')].id"
diff --git a/tests/rustdoc-json/impls/import_from_private.rs b/tests/rustdoc-json/impls/import_from_private.rs
index e386252e83b..32b9abb0717 100644
--- a/tests/rustdoc-json/impls/import_from_private.rs
+++ b/tests/rustdoc-json/impls/import_from_private.rs
@@ -11,10 +11,10 @@ mod bar {
     }
 }
 
-//@ set import = "$.index[*][?(@.inner.import)].id"
+//@ set import = "$.index[*][?(@.inner.use)].id"
 pub use bar::Baz;
 
 //@ is "$.index[*].inner.module.items[*]" $import
-//@ is "$.index[*].inner.import.id" $baz
+//@ is "$.index[*].inner.use.id" $baz
 //@ has "$.index[*][?(@.name == 'Baz')].inner.struct.impls[*]" $impl
 //@ is "$.index[*][?(@.docs=='impl')].inner.impl.items[*]" $doit
diff --git a/tests/rustdoc-json/impls/local_for_foreign.rs b/tests/rustdoc-json/impls/local_for_foreign.rs
index bd49269104f..cd89c475348 100644
--- a/tests/rustdoc-json/impls/local_for_foreign.rs
+++ b/tests/rustdoc-json/impls/local_for_foreign.rs
@@ -3,7 +3,7 @@ extern crate foreign_struct;
 
 /// ForeignStruct id hack
 pub use foreign_struct::ForeignStruct as _;
-//@ set ForeignStruct = "$.index[*][?(@.docs=='ForeignStruct id hack')].inner.import.id"
+//@ set ForeignStruct = "$.index[*][?(@.docs=='ForeignStruct id hack')].inner.use.id"
 
 pub trait LocalTrait {}
 //@ set LocalTrait = "$.index[*][?(@.name=='LocalTrait')].id"
diff --git a/tests/rustdoc-json/lifetime/longest.rs b/tests/rustdoc-json/lifetime/longest.rs
index 39f791d2b09..8ac60be0fef 100644
--- a/tests/rustdoc-json/lifetime/longest.rs
+++ b/tests/rustdoc-json/lifetime/longest.rs
@@ -6,21 +6,21 @@
 //@ count "$.index[*][?(@.name=='longest')].inner.function.generics.params[*]" 1
 //@ is "$.index[*][?(@.name=='longest')].inner.function.generics.where_predicates" []
 
-//@ count "$.index[*][?(@.name=='longest')].inner.function.decl.inputs[*]" 2
-//@ is "$.index[*][?(@.name=='longest')].inner.function.decl.inputs[0][0]" '"l"'
-//@ is "$.index[*][?(@.name=='longest')].inner.function.decl.inputs[1][0]" '"r"'
+//@ count "$.index[*][?(@.name=='longest')].inner.function.sig.inputs[*]" 2
+//@ is "$.index[*][?(@.name=='longest')].inner.function.sig.inputs[0][0]" '"l"'
+//@ is "$.index[*][?(@.name=='longest')].inner.function.sig.inputs[1][0]" '"r"'
 
-//@ is "$.index[*][?(@.name=='longest')].inner.function.decl.inputs[0][1].borrowed_ref.lifetime" \"\'a\"
-//@ is "$.index[*][?(@.name=='longest')].inner.function.decl.inputs[0][1].borrowed_ref.mutable" false
-//@ is "$.index[*][?(@.name=='longest')].inner.function.decl.inputs[0][1].borrowed_ref.type.primitive" \"str\"
+//@ is "$.index[*][?(@.name=='longest')].inner.function.sig.inputs[0][1].borrowed_ref.lifetime" \"\'a\"
+//@ is "$.index[*][?(@.name=='longest')].inner.function.sig.inputs[0][1].borrowed_ref.is_mutable" false
+//@ is "$.index[*][?(@.name=='longest')].inner.function.sig.inputs[0][1].borrowed_ref.type.primitive" \"str\"
 
-//@ is "$.index[*][?(@.name=='longest')].inner.function.decl.inputs[1][1].borrowed_ref.lifetime" \"\'a\"
-//@ is "$.index[*][?(@.name=='longest')].inner.function.decl.inputs[1][1].borrowed_ref.mutable" false
-//@ is "$.index[*][?(@.name=='longest')].inner.function.decl.inputs[1][1].borrowed_ref.type.primitive" \"str\"
+//@ is "$.index[*][?(@.name=='longest')].inner.function.sig.inputs[1][1].borrowed_ref.lifetime" \"\'a\"
+//@ is "$.index[*][?(@.name=='longest')].inner.function.sig.inputs[1][1].borrowed_ref.is_mutable" false
+//@ is "$.index[*][?(@.name=='longest')].inner.function.sig.inputs[1][1].borrowed_ref.type.primitive" \"str\"
 
-//@ is "$.index[*][?(@.name=='longest')].inner.function.decl.output.borrowed_ref.lifetime" \"\'a\"
-//@ is "$.index[*][?(@.name=='longest')].inner.function.decl.output.borrowed_ref.mutable" false
-//@ is "$.index[*][?(@.name=='longest')].inner.function.decl.output.borrowed_ref.type.primitive" \"str\"
+//@ is "$.index[*][?(@.name=='longest')].inner.function.sig.output.borrowed_ref.lifetime" \"\'a\"
+//@ is "$.index[*][?(@.name=='longest')].inner.function.sig.output.borrowed_ref.is_mutable" false
+//@ is "$.index[*][?(@.name=='longest')].inner.function.sig.output.borrowed_ref.type.primitive" \"str\"
 
 pub fn longest<'a>(l: &'a str, r: &'a str) -> &'a str {
     if l.len() > r.len() { l } else { r }
diff --git a/tests/rustdoc-json/lifetime/outlives.rs b/tests/rustdoc-json/lifetime/outlives.rs
index c98555d5737..99d14296f99 100644
--- a/tests/rustdoc-json/lifetime/outlives.rs
+++ b/tests/rustdoc-json/lifetime/outlives.rs
@@ -10,9 +10,9 @@
 //@ is "$.index[*][?(@.name=='foo')].inner.function.generics.params[2].kind.type.default" null
 //@ count "$.index[*][?(@.name=='foo')].inner.function.generics.params[2].kind.type.bounds[*]" 1
 //@ is "$.index[*][?(@.name=='foo')].inner.function.generics.params[2].kind.type.bounds[0].outlives" \"\'b\"
-//@ is "$.index[*][?(@.name=='foo')].inner.function.decl.inputs[0][1].borrowed_ref.lifetime" \"\'a\"
-//@ is "$.index[*][?(@.name=='foo')].inner.function.decl.inputs[0][1].borrowed_ref.mutable" false
-//@ is "$.index[*][?(@.name=='foo')].inner.function.decl.inputs[0][1].borrowed_ref.type.borrowed_ref.lifetime" \"\'b\"
-//@ is "$.index[*][?(@.name=='foo')].inner.function.decl.inputs[0][1].borrowed_ref.type.borrowed_ref.mutable" false
-//@ is "$.index[*][?(@.name=='foo')].inner.function.decl.inputs[0][1].borrowed_ref.type.borrowed_ref.type.generic" \"T\"
+//@ is "$.index[*][?(@.name=='foo')].inner.function.sig.inputs[0][1].borrowed_ref.lifetime" \"\'a\"
+//@ is "$.index[*][?(@.name=='foo')].inner.function.sig.inputs[0][1].borrowed_ref.is_mutable" false
+//@ is "$.index[*][?(@.name=='foo')].inner.function.sig.inputs[0][1].borrowed_ref.type.borrowed_ref.lifetime" \"\'b\"
+//@ is "$.index[*][?(@.name=='foo')].inner.function.sig.inputs[0][1].borrowed_ref.type.borrowed_ref.is_mutable" false
+//@ is "$.index[*][?(@.name=='foo')].inner.function.sig.inputs[0][1].borrowed_ref.type.borrowed_ref.type.generic" \"T\"
 pub fn foo<'a, 'b: 'a, T: 'b>(_: &'a &'b T) {}
diff --git a/tests/rustdoc-json/methods/qualifiers.rs b/tests/rustdoc-json/methods/qualifiers.rs
index 8de8cfd4c15..ba7c2e60936 100644
--- a/tests/rustdoc-json/methods/qualifiers.rs
+++ b/tests/rustdoc-json/methods/qualifiers.rs
@@ -3,34 +3,34 @@
 pub struct Foo;
 
 impl Foo {
-    //@ is "$.index[*][?(@.name=='const_meth')].inner.function.header.async" false
-    //@ is "$.index[*][?(@.name=='const_meth')].inner.function.header.const"  true
-    //@ is "$.index[*][?(@.name=='const_meth')].inner.function.header.unsafe" false
+    //@ is "$.index[*][?(@.name=='const_meth')].inner.function.header.is_async" false
+    //@ is "$.index[*][?(@.name=='const_meth')].inner.function.header.is_const"  true
+    //@ is "$.index[*][?(@.name=='const_meth')].inner.function.header.is_unsafe" false
     pub const fn const_meth() {}
 
-    //@ is "$.index[*][?(@.name=='nothing_meth')].inner.function.header.async"  false
-    //@ is "$.index[*][?(@.name=='nothing_meth')].inner.function.header.const"  false
-    //@ is "$.index[*][?(@.name=='nothing_meth')].inner.function.header.unsafe" false
+    //@ is "$.index[*][?(@.name=='nothing_meth')].inner.function.header.is_async"  false
+    //@ is "$.index[*][?(@.name=='nothing_meth')].inner.function.header.is_const"  false
+    //@ is "$.index[*][?(@.name=='nothing_meth')].inner.function.header.is_unsafe" false
     pub fn nothing_meth() {}
 
-    //@ is "$.index[*][?(@.name=='unsafe_meth')].inner.function.header.async"  false
-    //@ is "$.index[*][?(@.name=='unsafe_meth')].inner.function.header.const"  false
-    //@ is "$.index[*][?(@.name=='unsafe_meth')].inner.function.header.unsafe" true
+    //@ is "$.index[*][?(@.name=='unsafe_meth')].inner.function.header.is_async"  false
+    //@ is "$.index[*][?(@.name=='unsafe_meth')].inner.function.header.is_const"  false
+    //@ is "$.index[*][?(@.name=='unsafe_meth')].inner.function.header.is_unsafe" true
     pub unsafe fn unsafe_meth() {}
 
-    //@ is "$.index[*][?(@.name=='async_meth')].inner.function.header.async"  true
-    //@ is "$.index[*][?(@.name=='async_meth')].inner.function.header.const"  false
-    //@ is "$.index[*][?(@.name=='async_meth')].inner.function.header.unsafe" false
+    //@ is "$.index[*][?(@.name=='async_meth')].inner.function.header.is_async"  true
+    //@ is "$.index[*][?(@.name=='async_meth')].inner.function.header.is_const"  false
+    //@ is "$.index[*][?(@.name=='async_meth')].inner.function.header.is_unsafe" false
     pub async fn async_meth() {}
 
-    //@ is "$.index[*][?(@.name=='async_unsafe_meth')].inner.function.header.async"  true
-    //@ is "$.index[*][?(@.name=='async_unsafe_meth')].inner.function.header.const"  false
-    //@ is "$.index[*][?(@.name=='async_unsafe_meth')].inner.function.header.unsafe" true
+    //@ is "$.index[*][?(@.name=='async_unsafe_meth')].inner.function.header.is_async"  true
+    //@ is "$.index[*][?(@.name=='async_unsafe_meth')].inner.function.header.is_const"  false
+    //@ is "$.index[*][?(@.name=='async_unsafe_meth')].inner.function.header.is_unsafe" true
     pub async unsafe fn async_unsafe_meth() {}
 
-    //@ is "$.index[*][?(@.name=='const_unsafe_meth')].inner.function.header.async"  false
-    //@ is "$.index[*][?(@.name=='const_unsafe_meth')].inner.function.header.const"  true
-    //@ is "$.index[*][?(@.name=='const_unsafe_meth')].inner.function.header.unsafe" true
+    //@ is "$.index[*][?(@.name=='const_unsafe_meth')].inner.function.header.is_async"  false
+    //@ is "$.index[*][?(@.name=='const_unsafe_meth')].inner.function.header.is_const"  true
+    //@ is "$.index[*][?(@.name=='const_unsafe_meth')].inner.function.header.is_unsafe" true
     pub const unsafe fn const_unsafe_meth() {}
 
     // It's impossible for a method to be both const and async, so no test for that
diff --git a/tests/rustdoc-json/nested.rs b/tests/rustdoc-json/nested.rs
index ae2d9fe0ac5..10ec2831c21 100644
--- a/tests/rustdoc-json/nested.rs
+++ b/tests/rustdoc-json/nested.rs
@@ -22,11 +22,11 @@ pub mod l1 {
         //@ ismany "$.index[*][?(@.name=='l3')].inner.module.items[*]" $l4_id
         pub struct L4;
     }
-    //@ is "$.index[*][?(@.inner.import)].inner.import.glob" false
-    //@ is "$.index[*][?(@.inner.import)].inner.import.source" '"l3::L4"'
-    //@ is "$.index[*][?(@.inner.import)].inner.import.glob" false
-    //@ is "$.index[*][?(@.inner.import)].inner.import.id" $l4_id
-    //@ set l4_use_id = "$.index[*][?(@.inner.import)].id"
+    //@ is "$.index[*][?(@.inner.use)].inner.use.is_glob" false
+    //@ is "$.index[*][?(@.inner.use)].inner.use.source" '"l3::L4"'
+    //@ is "$.index[*][?(@.inner.use)].inner.use.is_glob" false
+    //@ is "$.index[*][?(@.inner.use)].inner.use.id" $l4_id
+    //@ set l4_use_id = "$.index[*][?(@.inner.use)].id"
     pub use l3::L4;
 }
 //@ ismany "$.index[*][?(@.name=='l1')].inner.module.items[*]" $l3_id $l4_use_id
diff --git a/tests/rustdoc-json/non_lifetime_binders.rs b/tests/rustdoc-json/non_lifetime_binders.rs
index 06f6e10aa85..8443141fecd 100644
--- a/tests/rustdoc-json/non_lifetime_binders.rs
+++ b/tests/rustdoc-json/non_lifetime_binders.rs
@@ -11,7 +11,7 @@ pub struct Wrapper<T_>(std::marker::PhantomData<T_>);
 //@ is "$.index[*][?(@.name=='foo')].inner.function.generics.where_predicates[0].bound_predicate.generic_params[0].name" \"\'a\"
 //@ is "$.index[*][?(@.name=='foo')].inner.function.generics.where_predicates[0].bound_predicate.generic_params[0].kind" '{ "lifetime": { "outlives": [] } }'
 //@ is "$.index[*][?(@.name=='foo')].inner.function.generics.where_predicates[0].bound_predicate.generic_params[1].name" \"T\"
-//@ is "$.index[*][?(@.name=='foo')].inner.function.generics.where_predicates[0].bound_predicate.generic_params[1].kind" '{ "type": { "bounds": [], "default": null, "synthetic": false } }'
+//@ is "$.index[*][?(@.name=='foo')].inner.function.generics.where_predicates[0].bound_predicate.generic_params[1].kind" '{ "type": { "bounds": [], "default": null, "is_synthetic": false } }'
 pub fn foo()
 where
     for<'a, T> &'a Wrapper<T>: Trait,
diff --git a/tests/rustdoc-json/primitives/use_primitive.rs b/tests/rustdoc-json/primitives/use_primitive.rs
index 27394a688c4..d4cdef84de8 100644
--- a/tests/rustdoc-json/primitives/use_primitive.rs
+++ b/tests/rustdoc-json/primitives/use_primitive.rs
@@ -13,7 +13,7 @@ mod usize {}
 //@ !is "$.index[*][?(@.name=='checked_add')]" $local_crate_id
 //@ !has "$.index[*][?(@.name=='is_ascii_uppercase')]"
 
-//@ is "$.index[*].inner.import[?(@.name=='my_i32')].id" null
+//@ is "$.index[*].inner.use[?(@.name=='my_i32')].id" null
 pub use i32 as my_i32;
-//@ is "$.index[*].inner.import[?(@.name=='u32')].id" null
+//@ is "$.index[*].inner.use[?(@.name=='u32')].id" null
 pub use u32;
diff --git a/tests/rustdoc-json/reexport/extern_crate_glob.rs b/tests/rustdoc-json/reexport/extern_crate_glob.rs
index a0b4cb8ab2c..dfe6e7a03b1 100644
--- a/tests/rustdoc-json/reexport/extern_crate_glob.rs
+++ b/tests/rustdoc-json/reexport/extern_crate_glob.rs
@@ -6,6 +6,6 @@ extern crate enum_with_discriminant;
 pub use enum_with_discriminant::*;
 
 //@ !has '$.index[*][?(@.docs == "Should not be inlined")]'
-//@ is '$.index[*][?(@.inner.import)].inner.import.name' \"enum_with_discriminant\"
-//@ set use = '$.index[*][?(@.inner.import)].id'
+//@ is '$.index[*][?(@.inner.use)].inner.use.name' \"enum_with_discriminant\"
+//@ set use = '$.index[*][?(@.inner.use)].id'
 //@ is '$.index[*][?(@.name == "extern_crate_glob")].inner.module.items[*]' $use
diff --git a/tests/rustdoc-json/reexport/glob_collision.rs b/tests/rustdoc-json/reexport/glob_collision.rs
index 3a034afab65..8142c35f4c7 100644
--- a/tests/rustdoc-json/reexport/glob_collision.rs
+++ b/tests/rustdoc-json/reexport/glob_collision.rs
@@ -14,13 +14,13 @@ mod m2 {
 }
 
 //@ set m1_use = "$.index[*][?(@.docs=='m1 re-export')].id"
-//@ is "$.index[*].inner.import[?(@.name=='m1')].id" $m1
-//@ is "$.index[*].inner.import[?(@.name=='m1')].glob" true
+//@ is "$.index[*].inner.use[?(@.name=='m1')].id" $m1
+//@ is "$.index[*].inner.use[?(@.name=='m1')].is_glob" true
 /// m1 re-export
 pub use m1::*;
 //@ set m2_use = "$.index[*][?(@.docs=='m2 re-export')].id"
-//@ is "$.index[*].inner.import[?(@.name=='m2')].id" $m2
-//@ is "$.index[*].inner.import[?(@.name=='m2')].glob" true
+//@ is "$.index[*].inner.use[?(@.name=='m2')].id" $m2
+//@ is "$.index[*].inner.use[?(@.name=='m2')].is_glob" true
 /// m2 re-export
 pub use m2::*;
 
diff --git a/tests/rustdoc-json/reexport/glob_empty_mod.rs b/tests/rustdoc-json/reexport/glob_empty_mod.rs
index 326df5fdb61..ee1779407f4 100644
--- a/tests/rustdoc-json/reexport/glob_empty_mod.rs
+++ b/tests/rustdoc-json/reexport/glob_empty_mod.rs
@@ -4,5 +4,5 @@
 //@ set m1 = "$.index[*][?(@.name=='m1')].id"
 mod m1 {}
 
-//@ is "$.index[*][?(@.inner.import)].inner.import.id" $m1
+//@ is "$.index[*][?(@.inner.use)].inner.use.id" $m1
 pub use m1::*;
diff --git a/tests/rustdoc-json/reexport/glob_extern.rs b/tests/rustdoc-json/reexport/glob_extern.rs
index ff5d986d377..98be4773941 100644
--- a/tests/rustdoc-json/reexport/glob_extern.rs
+++ b/tests/rustdoc-json/reexport/glob_extern.rs
@@ -12,8 +12,8 @@ mod mod1 {
     //@ set mod1_id = "$.index[*][?(@.name=='mod1')].id"
 }
 
-//@ is "$.index[*][?(@.inner.import)].inner.import.glob" true
-//@ is "$.index[*][?(@.inner.import)].inner.import.id" $mod1_id
-//@ set use_id = "$.index[*][?(@.inner.import)].id"
+//@ is "$.index[*][?(@.inner.use)].inner.use.is_glob" true
+//@ is "$.index[*][?(@.inner.use)].inner.use.id" $mod1_id
+//@ set use_id = "$.index[*][?(@.inner.use)].id"
 //@ ismany "$.index[*][?(@.name=='glob_extern')].inner.module.items[*]" $use_id
 pub use mod1::*;
diff --git a/tests/rustdoc-json/reexport/glob_private.rs b/tests/rustdoc-json/reexport/glob_private.rs
index 0a889107592..2084ffc356e 100644
--- a/tests/rustdoc-json/reexport/glob_private.rs
+++ b/tests/rustdoc-json/reexport/glob_private.rs
@@ -12,7 +12,7 @@ mod mod1 {
     }
 
     //@ set mod2_use_id = "$.index[*][?(@.docs=='Mod2 re-export')].id"
-    //@ is "$.index[*][?(@.docs=='Mod2 re-export')].inner.import.name" \"mod2\"
+    //@ is "$.index[*][?(@.docs=='Mod2 re-export')].inner.use.name" \"mod2\"
     /// Mod2 re-export
     pub use self::mod2::*;
 
@@ -23,7 +23,7 @@ mod mod1 {
 }
 
 //@ set mod1_use_id = "$.index[*][?(@.docs=='Mod1 re-export')].id"
-//@ is "$.index[*][?(@.docs=='Mod1 re-export')].inner.import.name" \"mod1\"
+//@ is "$.index[*][?(@.docs=='Mod1 re-export')].inner.use.name" \"mod1\"
 /// Mod1 re-export
 pub use mod1::*;
 
diff --git a/tests/rustdoc-json/reexport/in_root_and_mod.rs b/tests/rustdoc-json/reexport/in_root_and_mod.rs
index f94e416c00f..a1d2080c068 100644
--- a/tests/rustdoc-json/reexport/in_root_and_mod.rs
+++ b/tests/rustdoc-json/reexport/in_root_and_mod.rs
@@ -4,10 +4,10 @@ mod foo {
     pub struct Foo;
 }
 
-//@ has "$.index[*].inner[?(@.import.source=='foo::Foo')]"
+//@ has "$.index[*].inner[?(@.use.source=='foo::Foo')]"
 pub use foo::Foo;
 
 pub mod bar {
-    //@ has "$.index[*].inner[?(@.import.source=='crate::foo::Foo')]"
+    //@ has "$.index[*].inner[?(@.use.source=='crate::foo::Foo')]"
     pub use crate::foo::Foo;
 }
diff --git a/tests/rustdoc-json/reexport/in_root_and_mod_pub.rs b/tests/rustdoc-json/reexport/in_root_and_mod_pub.rs
index 13dee323542..7d26d2a970d 100644
--- a/tests/rustdoc-json/reexport/in_root_and_mod_pub.rs
+++ b/tests/rustdoc-json/reexport/in_root_and_mod_pub.rs
@@ -5,14 +5,14 @@ pub mod foo {
 }
 
 //@ set root_import_id = "$.index[*][?(@.docs=='Outer re-export')].id"
-//@ is "$.index[*].inner[?(@.import.source=='foo::Bar')].import.id" $bar_id
+//@ is "$.index[*].inner[?(@.use.source=='foo::Bar')].use.id" $bar_id
 //@ has "$.index[*][?(@.name=='in_root_and_mod_pub')].inner.module.items[*]" $root_import_id
 /// Outer re-export
 pub use foo::Bar;
 
 pub mod baz {
     //@ set baz_import_id = "$.index[*][?(@.docs=='Inner re-export')].id"
-    //@ is "$.index[*].inner[?(@.import.source=='crate::foo::Bar')].import.id" $bar_id
+    //@ is "$.index[*].inner[?(@.use.source=='crate::foo::Bar')].use.id" $bar_id
     //@ ismany "$.index[*][?(@.name=='baz')].inner.module.items[*]" $baz_import_id
     /// Inner re-export
     pub use crate::foo::Bar;
diff --git a/tests/rustdoc-json/reexport/mod_not_included.rs b/tests/rustdoc-json/reexport/mod_not_included.rs
index 7e0c0118e84..d0ce95749f1 100644
--- a/tests/rustdoc-json/reexport/mod_not_included.rs
+++ b/tests/rustdoc-json/reexport/mod_not_included.rs
@@ -7,5 +7,5 @@ mod m1 {
 pub use m1::x;
 
 //@ has "$.index[*][?(@.name=='x' && @.inner.function)]"
-//@ has "$.index[*].inner[?(@.import.name=='x')].import.source" '"m1::x"'
+//@ has "$.index[*].inner[?(@.use.name=='x')].use.source" '"m1::x"'
 //@ !has "$.index[*][?(@.name=='m1')]"
diff --git a/tests/rustdoc-json/reexport/private_twice_one_inline.rs b/tests/rustdoc-json/reexport/private_twice_one_inline.rs
index be66ad522da..87b97e65c0a 100644
--- a/tests/rustdoc-json/reexport/private_twice_one_inline.rs
+++ b/tests/rustdoc-json/reexport/private_twice_one_inline.rs
@@ -7,18 +7,18 @@
 extern crate pub_struct as foo;
 #[doc(inline)]
 //@ set crate_use_id = "$.index[*][?(@.docs=='Hack A')].id"
-//@ set foo_id = "$.index[*][?(@.docs=='Hack A')].inner.import.id"
+//@ set foo_id = "$.index[*][?(@.docs=='Hack A')].inner.use.id"
 /// Hack A
 pub use foo::Foo;
 
 //@ set bar_id = "$.index[*][?(@.name=='bar')].id"
 pub mod bar {
-    //@ is "$.index[*][?(@.docs=='Hack B')].inner.import.id" $foo_id
+    //@ is "$.index[*][?(@.docs=='Hack B')].inner.use.id" $foo_id
     //@ set bar_use_id = "$.index[*][?(@.docs=='Hack B')].id"
     //@ ismany "$.index[*][?(@.name=='bar')].inner.module.items[*]" $bar_use_id
     /// Hack B
     pub use foo::Foo;
 }
 
-//@ ismany "$.index[*][?(@.inner.import)].id" $crate_use_id $bar_use_id
+//@ ismany "$.index[*][?(@.inner.use)].id" $crate_use_id $bar_use_id
 //@ ismany "$.index[*][?(@.name=='private_twice_one_inline')].inner.module.items[*]" $bar_id $crate_use_id
diff --git a/tests/rustdoc-json/reexport/private_two_names.rs b/tests/rustdoc-json/reexport/private_two_names.rs
index 1e5466dba5e..1ed54f15fdc 100644
--- a/tests/rustdoc-json/reexport/private_two_names.rs
+++ b/tests/rustdoc-json/reexport/private_two_names.rs
@@ -9,13 +9,13 @@ mod style {
     pub struct Color;
 }
 
-//@ is "$.index[*][?(@.docs=='First re-export')].inner.import.id" $color_struct_id
-//@ is "$.index[*][?(@.docs=='First re-export')].inner.import.name" \"Color\"
+//@ is "$.index[*][?(@.docs=='First re-export')].inner.use.id" $color_struct_id
+//@ is "$.index[*][?(@.docs=='First re-export')].inner.use.name" \"Color\"
 //@ set color_export_id = "$.index[*][?(@.docs=='First re-export')].id"
 /// First re-export
 pub use style::Color;
-//@ is "$.index[*][?(@.docs=='Second re-export')].inner.import.id" $color_struct_id
-//@ is "$.index[*][?(@.docs=='Second re-export')].inner.import.name" \"Colour\"
+//@ is "$.index[*][?(@.docs=='Second re-export')].inner.use.id" $color_struct_id
+//@ is "$.index[*][?(@.docs=='Second re-export')].inner.use.name" \"Colour\"
 //@ set colour_export_id = "$.index[*][?(@.docs=='Second re-export')].id"
 /// Second re-export
 pub use style::Color as Colour;
diff --git a/tests/rustdoc-json/reexport/reexport_of_hidden.rs b/tests/rustdoc-json/reexport/reexport_of_hidden.rs
index 07ce1f5c20a..80f171da888 100644
--- a/tests/rustdoc-json/reexport/reexport_of_hidden.rs
+++ b/tests/rustdoc-json/reexport/reexport_of_hidden.rs
@@ -1,6 +1,6 @@
 //@ compile-flags: --document-hidden-items
 
-//@ has "$.index[*].inner[?(@.import.name=='UsedHidden')]"
+//@ has "$.index[*].inner[?(@.use.name=='UsedHidden')]"
 //@ has "$.index[*][?(@.name=='Hidden')]"
 pub mod submodule {
     #[doc(hidden)]
diff --git a/tests/rustdoc-json/reexport/rename_private.rs b/tests/rustdoc-json/reexport/rename_private.rs
index 3335d18e27b..3f13f305d64 100644
--- a/tests/rustdoc-json/reexport/rename_private.rs
+++ b/tests/rustdoc-json/reexport/rename_private.rs
@@ -6,5 +6,5 @@ mod inner {
     pub struct Public;
 }
 
-//@ is "$.index[*][?(@.inner.import)].inner.import.name" \"NewName\"
+//@ is "$.index[*][?(@.inner.use)].inner.use.name" \"NewName\"
 pub use inner::Public as NewName;
diff --git a/tests/rustdoc-json/reexport/rename_public.rs b/tests/rustdoc-json/reexport/rename_public.rs
index e534f458f93..81c003a51c4 100644
--- a/tests/rustdoc-json/reexport/rename_public.rs
+++ b/tests/rustdoc-json/reexport/rename_public.rs
@@ -7,8 +7,8 @@ pub mod inner {
     pub struct Public;
 }
 //@ set import_id = "$.index[*][?(@.docs=='Re-export')].id"
-//@ !has "$.index[*].inner[?(@.import.name=='Public')]"
-//@ is "$.index[*].inner[?(@.import.name=='NewName')].import.source" \"inner::Public\"
+//@ !has "$.index[*].inner[?(@.use.name=='Public')]"
+//@ is "$.index[*].inner[?(@.use.name=='NewName')].use.source" \"inner::Public\"
 /// Re-export
 pub use inner::Public as NewName;
 
diff --git a/tests/rustdoc-json/reexport/same_name_different_types.rs b/tests/rustdoc-json/reexport/same_name_different_types.rs
index b0a06d4ecfa..e9bc4a5ac40 100644
--- a/tests/rustdoc-json/reexport/same_name_different_types.rs
+++ b/tests/rustdoc-json/reexport/same_name_different_types.rs
@@ -13,10 +13,10 @@ pub mod nested {
     pub fn Foo() {}
 }
 
-//@ ismany "$.index[*].inner[?(@.import.name == 'Foo')].import.id" $foo_fn $foo_struct
-//@ ismany "$.index[*].inner[?(@.import.name == 'Bar')].import.id" $foo_fn $foo_struct
+//@ ismany "$.index[*].inner[?(@.use.name == 'Foo')].use.id" $foo_fn $foo_struct
+//@ ismany "$.index[*].inner[?(@.use.name == 'Bar')].use.id" $foo_fn $foo_struct
 
-//@ count "$.index[*].inner[?(@.import.name == 'Foo')]" 2
+//@ count "$.index[*].inner[?(@.use.name == 'Foo')]" 2
 pub use nested::Foo;
-//@ count "$.index[*].inner[?(@.import.name == 'Bar')]" 2
+//@ count "$.index[*].inner[?(@.use.name == 'Bar')]" 2
 pub use Foo as Bar;
diff --git a/tests/rustdoc-json/reexport/same_type_reexported_more_than_once.rs b/tests/rustdoc-json/reexport/same_type_reexported_more_than_once.rs
index c533b9ba770..27e2827d08d 100644
--- a/tests/rustdoc-json/reexport/same_type_reexported_more_than_once.rs
+++ b/tests/rustdoc-json/reexport/same_type_reexported_more_than_once.rs
@@ -10,11 +10,11 @@ mod inner {
 }
 
 //@ set export_id = "$.index[*][?(@.docs=='First re-export')].id"
-//@ is "$.index[*].inner[?(@.import.name=='Trait')].import.id" $trait_id
+//@ is "$.index[*].inner[?(@.use.name=='Trait')].use.id" $trait_id
 /// First re-export
 pub use inner::Trait;
 //@ set reexport_id = "$.index[*][?(@.docs=='Second re-export')].id"
-//@ is "$.index[*].inner[?(@.import.name=='Reexport')].import.id" $trait_id
+//@ is "$.index[*].inner[?(@.use.name=='Reexport')].use.id" $trait_id
 /// Second re-export
 pub use inner::Trait as Reexport;
 
diff --git a/tests/rustdoc-json/reexport/simple_private.rs b/tests/rustdoc-json/reexport/simple_private.rs
index 9af0157818b..8a936f5da1b 100644
--- a/tests/rustdoc-json/reexport/simple_private.rs
+++ b/tests/rustdoc-json/reexport/simple_private.rs
@@ -6,9 +6,9 @@ mod inner {
     pub struct Public;
 }
 
-//@ is "$.index[*][?(@.inner.import)].inner.import.name" \"Public\"
-//@ is "$.index[*][?(@.inner.import)].inner.import.id" $pub_id
-//@ set use_id = "$.index[*][?(@.inner.import)].id"
+//@ is "$.index[*][?(@.inner.use)].inner.use.name" \"Public\"
+//@ is "$.index[*][?(@.inner.use)].inner.use.id" $pub_id
+//@ set use_id = "$.index[*][?(@.inner.use)].id"
 pub use inner::Public;
 
 //@ ismany "$.index[*][?(@.name=='simple_private')].inner.module.items[*]" $use_id
diff --git a/tests/rustdoc-json/reexport/simple_public.rs b/tests/rustdoc-json/reexport/simple_public.rs
index d7b44b2f987..e5a8dc7d2ad 100644
--- a/tests/rustdoc-json/reexport/simple_public.rs
+++ b/tests/rustdoc-json/reexport/simple_public.rs
@@ -9,7 +9,7 @@ pub mod inner {
 }
 
 //@ set import_id = "$.index[*][?(@.docs=='Outer')].id"
-//@ is "$.index[*][?(@.docs=='Outer')].inner.import.source" \"inner::Public\"
+//@ is "$.index[*][?(@.docs=='Outer')].inner.use.source" \"inner::Public\"
 /// Outer
 pub use inner::Public;
 
diff --git a/tests/rustdoc-json/return_private.rs b/tests/rustdoc-json/return_private.rs
index 4a1922e15e5..0b341e2bda7 100644
--- a/tests/rustdoc-json/return_private.rs
+++ b/tests/rustdoc-json/return_private.rs
@@ -6,7 +6,7 @@ mod secret {
 }
 
 //@ has "$.index[*][?(@.name=='get_secret')].inner.function"
-//@ is "$.index[*][?(@.name=='get_secret')].inner.function.decl.output.resolved_path.name" \"secret::Secret\"
+//@ is "$.index[*][?(@.name=='get_secret')].inner.function.sig.output.resolved_path.name" \"secret::Secret\"
 pub fn get_secret() -> secret::Secret {
     secret::Secret
 }
diff --git a/tests/rustdoc-json/structs/plain_all_pub.rs b/tests/rustdoc-json/structs/plain_all_pub.rs
index aa53b59726a..67d2a4a7a8c 100644
--- a/tests/rustdoc-json/structs/plain_all_pub.rs
+++ b/tests/rustdoc-json/structs/plain_all_pub.rs
@@ -8,4 +8,4 @@ pub struct Demo {
 //@ is "$.index[*][?(@.name=='Demo')].inner.struct.kind.plain.fields[0]" $x
 //@ is "$.index[*][?(@.name=='Demo')].inner.struct.kind.plain.fields[1]" $y
 //@ count "$.index[*][?(@.name=='Demo')].inner.struct.kind.plain.fields[*]" 2
-//@ is "$.index[*][?(@.name=='Demo')].inner.struct.kind.plain.fields_stripped" false
+//@ is "$.index[*][?(@.name=='Demo')].inner.struct.kind.plain.has_stripped_fields" false
diff --git a/tests/rustdoc-json/structs/plain_doc_hidden.rs b/tests/rustdoc-json/structs/plain_doc_hidden.rs
index 39f9367cb93..4573adc73fa 100644
--- a/tests/rustdoc-json/structs/plain_doc_hidden.rs
+++ b/tests/rustdoc-json/structs/plain_doc_hidden.rs
@@ -8,4 +8,4 @@ pub struct Demo {
 //@ !has "$.index[*][?(@.name=='y')].id"
 //@ is "$.index[*][?(@.name=='Demo')].inner.struct.kind.plain.fields[0]" $x
 //@ count "$.index[*][?(@.name=='Demo')].inner.struct.kind.plain.fields[*]" 1
-//@ is "$.index[*][?(@.name=='Demo')].inner.struct.kind.plain.fields_stripped" true
+//@ is "$.index[*][?(@.name=='Demo')].inner.struct.kind.plain.has_stripped_fields" true
diff --git a/tests/rustdoc-json/structs/plain_empty.rs b/tests/rustdoc-json/structs/plain_empty.rs
index 00b4b05ebdd..30013021abe 100644
--- a/tests/rustdoc-json/structs/plain_empty.rs
+++ b/tests/rustdoc-json/structs/plain_empty.rs
@@ -1,5 +1,5 @@
 //@ is "$.index[*][?(@.name=='PlainEmpty')].visibility" \"public\"
 //@ has "$.index[*][?(@.name=='PlainEmpty')].inner.struct"
-//@ is "$.index[*][?(@.name=='PlainEmpty')].inner.struct.kind.plain.fields_stripped" false
+//@ is "$.index[*][?(@.name=='PlainEmpty')].inner.struct.kind.plain.has_stripped_fields" false
 //@ is "$.index[*][?(@.name=='PlainEmpty')].inner.struct.kind.plain.fields" []
 pub struct PlainEmpty {}
diff --git a/tests/rustdoc-json/structs/plain_pub_priv.rs b/tests/rustdoc-json/structs/plain_pub_priv.rs
index f9ab8714f81..91079a30d42 100644
--- a/tests/rustdoc-json/structs/plain_pub_priv.rs
+++ b/tests/rustdoc-json/structs/plain_pub_priv.rs
@@ -6,4 +6,4 @@ pub struct Demo {
 //@ set x = "$.index[*][?(@.name=='x')].id"
 //@ is "$.index[*][?(@.name=='Demo')].inner.struct.kind.plain.fields[0]" $x
 //@ count "$.index[*][?(@.name=='Demo')].inner.struct.kind.plain.fields[*]" 1
-//@ is "$.index[*][?(@.name=='Demo')].inner.struct.kind.plain.fields_stripped" true
+//@ is "$.index[*][?(@.name=='Demo')].inner.struct.kind.plain.has_stripped_fields" true
diff --git a/tests/rustdoc-json/structs/with_generics.rs b/tests/rustdoc-json/structs/with_generics.rs
index 6e13dae9ebf..3e7f175a5a1 100644
--- a/tests/rustdoc-json/structs/with_generics.rs
+++ b/tests/rustdoc-json/structs/with_generics.rs
@@ -6,7 +6,7 @@ use std::collections::HashMap;
 //@ is "$.index[*][?(@.name=='WithGenerics')].inner.struct.generics.params[0].kind.type.bounds" []
 //@ is "$.index[*][?(@.name=='WithGenerics')].inner.struct.generics.params[1].name" \"U\"
 //@ is "$.index[*][?(@.name=='WithGenerics')].inner.struct.generics.params[1].kind.type.bounds" []
-//@ is "$.index[*][?(@.name=='WithGenerics')].inner.struct.kind.plain.fields_stripped" true
+//@ is "$.index[*][?(@.name=='WithGenerics')].inner.struct.kind.plain.has_stripped_fields" true
 //@ is "$.index[*][?(@.name=='WithGenerics')].inner.struct.kind.plain.fields" []
 pub struct WithGenerics<T, U> {
     stuff: Vec<T>,
diff --git a/tests/rustdoc-json/structs/with_primitives.rs b/tests/rustdoc-json/structs/with_primitives.rs
index 2ca11b50608..7202ab9af9c 100644
--- a/tests/rustdoc-json/structs/with_primitives.rs
+++ b/tests/rustdoc-json/structs/with_primitives.rs
@@ -4,7 +4,7 @@
 //@ has "$.index[*][?(@.name=='WithPrimitives')].inner.struct"
 //@ is "$.index[*][?(@.name=='WithPrimitives')].inner.struct.generics.params[0].name" \"\'a\"
 //@ is "$.index[*][?(@.name=='WithPrimitives')].inner.struct.generics.params[0].kind.lifetime.outlives" []
-//@ is "$.index[*][?(@.name=='WithPrimitives')].inner.struct.kind.plain.fields_stripped" true
+//@ is "$.index[*][?(@.name=='WithPrimitives')].inner.struct.kind.plain.has_stripped_fields" true
 //@ is "$.index[*][?(@.name=='WithPrimitives')].inner.struct.kind.plain.fields" []
 pub struct WithPrimitives<'a> {
     num: u32,
diff --git a/tests/rustdoc-json/trait_alias.rs b/tests/rustdoc-json/trait_alias.rs
index ca9e5edfdf7..3ae5fad8acc 100644
--- a/tests/rustdoc-json/trait_alias.rs
+++ b/tests/rustdoc-json/trait_alias.rs
@@ -7,12 +7,12 @@
 //@ is "$.index[*][?(@.name=='StrLike')].span.filename" $FILE
 pub trait StrLike = AsRef<str>;
 
-//@ is "$.index[*][?(@.name=='f')].inner.function.decl.output.impl_trait[0].trait_bound.trait.id" $StrLike
+//@ is "$.index[*][?(@.name=='f')].inner.function.sig.output.impl_trait[0].trait_bound.trait.id" $StrLike
 pub fn f() -> impl StrLike {
     "heya"
 }
 
-//@ !is "$.index[*][?(@.name=='g')].inner.function.decl.output.impl_trait[0].trait_bound.trait.id" $StrLike
+//@ !is "$.index[*][?(@.name=='g')].inner.function.sig.output.impl_trait[0].trait_bound.trait.id" $StrLike
 pub fn g() -> impl AsRef<str> {
     "heya"
 }
diff --git a/tests/rustdoc-json/traits/self.rs b/tests/rustdoc-json/traits/self.rs
index c7d952ae567..060bc37f2d5 100644
--- a/tests/rustdoc-json/traits/self.rs
+++ b/tests/rustdoc-json/traits/self.rs
@@ -9,29 +9,29 @@ pub struct Foo;
 // Each assertion matches 3 times, and should be the same each time.
 
 impl Foo {
-    //@ ismany '$.index[*][?(@.name=="by_ref")].inner.function.decl.inputs[0][0]' '"self"' '"self"' '"self"'
-    //@ ismany '$.index[*][?(@.name=="by_ref")].inner.function.decl.inputs[0][1].borrowed_ref.type.generic' '"Self"' '"Self"' '"Self"'
-    //@ ismany '$.index[*][?(@.name=="by_ref")].inner.function.decl.inputs[0][1].borrowed_ref.lifetime' null null null
-    //@ ismany '$.index[*][?(@.name=="by_ref")].inner.function.decl.inputs[0][1].borrowed_ref.mutable' false false false
+    //@ ismany '$.index[*][?(@.name=="by_ref")].inner.function.sig.inputs[0][0]' '"self"' '"self"' '"self"'
+    //@ ismany '$.index[*][?(@.name=="by_ref")].inner.function.sig.inputs[0][1].borrowed_ref.type.generic' '"Self"' '"Self"' '"Self"'
+    //@ ismany '$.index[*][?(@.name=="by_ref")].inner.function.sig.inputs[0][1].borrowed_ref.lifetime' null null null
+    //@ ismany '$.index[*][?(@.name=="by_ref")].inner.function.sig.inputs[0][1].borrowed_ref.is_mutable' false false false
     pub fn by_ref(&self) {}
 
-    //@ ismany '$.index[*][?(@.name=="by_exclusive_ref")].inner.function.decl.inputs[0][0]' '"self"' '"self"' '"self"'
-    //@ ismany '$.index[*][?(@.name=="by_exclusive_ref")].inner.function.decl.inputs[0][1].borrowed_ref.type.generic' '"Self"' '"Self"' '"Self"'
-    //@ ismany '$.index[*][?(@.name=="by_exclusive_ref")].inner.function.decl.inputs[0][1].borrowed_ref.lifetime' null null null
-    //@ ismany '$.index[*][?(@.name=="by_exclusive_ref")].inner.function.decl.inputs[0][1].borrowed_ref.mutable' true true true
+    //@ ismany '$.index[*][?(@.name=="by_exclusive_ref")].inner.function.sig.inputs[0][0]' '"self"' '"self"' '"self"'
+    //@ ismany '$.index[*][?(@.name=="by_exclusive_ref")].inner.function.sig.inputs[0][1].borrowed_ref.type.generic' '"Self"' '"Self"' '"Self"'
+    //@ ismany '$.index[*][?(@.name=="by_exclusive_ref")].inner.function.sig.inputs[0][1].borrowed_ref.lifetime' null null null
+    //@ ismany '$.index[*][?(@.name=="by_exclusive_ref")].inner.function.sig.inputs[0][1].borrowed_ref.is_mutable' true true true
     pub fn by_exclusive_ref(&mut self) {}
 
-    //@ ismany '$.index[*][?(@.name=="by_value")].inner.function.decl.inputs[0][0]' '"self"' '"self"' '"self"'
-    //@ ismany '$.index[*][?(@.name=="by_value")].inner.function.decl.inputs[0][1].generic' '"Self"' '"Self"' '"Self"'
+    //@ ismany '$.index[*][?(@.name=="by_value")].inner.function.sig.inputs[0][0]' '"self"' '"self"' '"self"'
+    //@ ismany '$.index[*][?(@.name=="by_value")].inner.function.sig.inputs[0][1].generic' '"Self"' '"Self"' '"Self"'
     pub fn by_value(self) {}
 
-    //@ ismany '$.index[*][?(@.name=="with_lifetime")].inner.function.decl.inputs[0][0]' '"self"' '"self"' '"self"'
-    //@ ismany '$.index[*][?(@.name=="with_lifetime")].inner.function.decl.inputs[0][1].borrowed_ref.type.generic' '"Self"' '"Self"' '"Self"'
-    //@ ismany '$.index[*][?(@.name=="with_lifetime")].inner.function.decl.inputs[0][1].borrowed_ref.lifetime' \"\'a\" \"\'a\" \"\'a\"
-    //@ ismany '$.index[*][?(@.name=="with_lifetime")].inner.function.decl.inputs[0][1].borrowed_ref.mutable' false false false
+    //@ ismany '$.index[*][?(@.name=="with_lifetime")].inner.function.sig.inputs[0][0]' '"self"' '"self"' '"self"'
+    //@ ismany '$.index[*][?(@.name=="with_lifetime")].inner.function.sig.inputs[0][1].borrowed_ref.type.generic' '"Self"' '"Self"' '"Self"'
+    //@ ismany '$.index[*][?(@.name=="with_lifetime")].inner.function.sig.inputs[0][1].borrowed_ref.lifetime' \"\'a\" \"\'a\" \"\'a\"
+    //@ ismany '$.index[*][?(@.name=="with_lifetime")].inner.function.sig.inputs[0][1].borrowed_ref.is_mutable' false false false
     pub fn with_lifetime<'a>(&'a self) {}
 
-    //@ ismany '$.index[*][?(@.name=="build")].inner.function.decl.output.generic' '"Self"' '"Self"' '"Self"'
+    //@ ismany '$.index[*][?(@.name=="build")].inner.function.sig.output.generic' '"Self"' '"Self"' '"Self"'
     pub fn build() -> Self {
         Self
     }
diff --git a/tests/rustdoc-json/traits/trait_alias.rs b/tests/rustdoc-json/traits/trait_alias.rs
index a1ab039692b..17c83ddc353 100644
--- a/tests/rustdoc-json/traits/trait_alias.rs
+++ b/tests/rustdoc-json/traits/trait_alias.rs
@@ -19,8 +19,8 @@ pub struct Struct;
 
 impl Orig<i32> for Struct {}
 
-//@ has "$.index[*][?(@.name=='takes_alias')].inner.function.decl.inputs[0][1].impl_trait"
-//@ is "$.index[*][?(@.name=='takes_alias')].inner.function.decl.inputs[0][1].impl_trait[0].trait_bound.trait.id" $Alias
+//@ has "$.index[*][?(@.name=='takes_alias')].inner.function.sig.inputs[0][1].impl_trait"
+//@ is "$.index[*][?(@.name=='takes_alias')].inner.function.sig.inputs[0][1].impl_trait[0].trait_bound.trait.id" $Alias
 //@ is "$.index[*][?(@.name=='takes_alias')].inner.function.generics.params[0].kind.type.bounds[0].trait_bound.trait.id" $Alias
 pub fn takes_alias(_: impl Alias) {}
 // FIXME: Should the trait be mentioned in both the decl and generics?
diff --git a/tests/rustdoc-json/type/dyn.rs b/tests/rustdoc-json/type/dyn.rs
index 86ea1c2b5f2..97c8689a7c8 100644
--- a/tests/rustdoc-json/type/dyn.rs
+++ b/tests/rustdoc-json/type/dyn.rs
@@ -11,7 +11,7 @@ use std::fmt::Debug;
 //@ is    "$.index[*][?(@.name=='SyncIntGen')].inner.type_alias.generics" '{"params": [], "where_predicates": []}'
 //@ has    "$.index[*][?(@.name=='SyncIntGen')].inner.type_alias.type.resolved_path"
 //@ is    "$.index[*][?(@.name=='SyncIntGen')].inner.type_alias.type.resolved_path.name" \"Box\"
-//@ is    "$.index[*][?(@.name=='SyncIntGen')].inner.type_alias.type.resolved_path.args.angle_bracketed.bindings" []
+//@ is    "$.index[*][?(@.name=='SyncIntGen')].inner.type_alias.type.resolved_path.args.angle_bracketed.constraints" []
 //@ count "$.index[*][?(@.name=='SyncIntGen')].inner.type_alias.type.resolved_path.args.angle_bracketed.args" 1
 //@ has    "$.index[*][?(@.name=='SyncIntGen')].inner.type_alias.type.resolved_path.args.angle_bracketed.args[0].type.dyn_trait"
 //@ is    "$.index[*][?(@.name=='SyncIntGen')].inner.type_alias.type.resolved_path.args.angle_bracketed.args[0].type.dyn_trait.lifetime" \"\'static\"
@@ -28,7 +28,7 @@ pub type SyncIntGen = Box<dyn Fn() -> i32 + Send + Sync + 'static>;
 //@ has "$.index[*][?(@.name=='RefFn')].inner.type_alias"
 //@ is "$.index[*][?(@.name=='RefFn')].inner.type_alias.generics" '{"params": [{"kind": {"lifetime": {"outlives": []}},"name": "'\''a"}],"where_predicates": []}'
 //@ has "$.index[*][?(@.name=='RefFn')].inner.type_alias.type.borrowed_ref"
-//@ is "$.index[*][?(@.name=='RefFn')].inner.type_alias.type.borrowed_ref.mutable" 'false'
+//@ is "$.index[*][?(@.name=='RefFn')].inner.type_alias.type.borrowed_ref.is_mutable" 'false'
 //@ is "$.index[*][?(@.name=='RefFn')].inner.type_alias.type.borrowed_ref.lifetime" "\"'a\""
 //@ has "$.index[*][?(@.name=='RefFn')].inner.type_alias.type.borrowed_ref.type.dyn_trait"
 //@ is "$.index[*][?(@.name=='RefFn')].inner.type_alias.type.borrowed_ref.type.dyn_trait.lifetime" null
diff --git a/tests/rustdoc-json/type/extern.rs b/tests/rustdoc-json/type/extern.rs
index fda5d5ab970..97e1c3760ee 100644
--- a/tests/rustdoc-json/type/extern.rs
+++ b/tests/rustdoc-json/type/extern.rs
@@ -6,4 +6,4 @@ extern "C" {
 }
 
 //@ is "$.index[*][?(@.docs=='No inner information')].name" '"Foo"'
-//@ is "$.index[*][?(@.docs=='No inner information')].inner" \"foreign_type\"
+//@ is "$.index[*][?(@.docs=='No inner information')].inner" \"extern_type\"
diff --git a/tests/rustdoc-json/type/fn_lifetime.rs b/tests/rustdoc-json/type/fn_lifetime.rs
index 2893b37319f..7fa12dad54e 100644
--- a/tests/rustdoc-json/type/fn_lifetime.rs
+++ b/tests/rustdoc-json/type/fn_lifetime.rs
@@ -7,9 +7,9 @@
 //@ count  "$.index[*][?(@.name=='GenericFn')].inner.type_alias.generics.params[*].kind.lifetime.outlives[*]" 0
 //@ count  "$.index[*][?(@.name=='GenericFn')].inner.type_alias.generics.where_predicates[*]" 0
 //@ count  "$.index[*][?(@.name=='GenericFn')].inner.type_alias.type.function_pointer.generic_params[*]" 0
-//@ count  "$.index[*][?(@.name=='GenericFn')].inner.type_alias.type.function_pointer.decl.inputs[*]" 1
-//@ is     "$.index[*][?(@.name=='GenericFn')].inner.type_alias.type.function_pointer.decl.inputs[*][1].borrowed_ref.lifetime" \"\'a\"
-//@ is     "$.index[*][?(@.name=='GenericFn')].inner.type_alias.type.function_pointer.decl.output.borrowed_ref.lifetime" \"\'a\"
+//@ count  "$.index[*][?(@.name=='GenericFn')].inner.type_alias.type.function_pointer.sig.inputs[*]" 1
+//@ is     "$.index[*][?(@.name=='GenericFn')].inner.type_alias.type.function_pointer.sig.inputs[*][1].borrowed_ref.lifetime" \"\'a\"
+//@ is     "$.index[*][?(@.name=='GenericFn')].inner.type_alias.type.function_pointer.sig.output.borrowed_ref.lifetime" \"\'a\"
 
 pub type GenericFn<'a> = fn(&'a i32) -> &'a i32;
 
@@ -20,7 +20,7 @@ pub type GenericFn<'a> = fn(&'a i32) -> &'a i32;
 //@ is    "$.index[*][?(@.name=='ForAll')].inner.type_alias.type.function_pointer.generic_params[*].name" \"\'a\"
 //@ has   "$.index[*][?(@.name=='ForAll')].inner.type_alias.type.function_pointer.generic_params[*].kind.lifetime"
 //@ count "$.index[*][?(@.name=='ForAll')].inner.type_alias.type.function_pointer.generic_params[*].kind.lifetime.outlives[*]" 0
-//@ count "$.index[*][?(@.name=='ForAll')].inner.type_alias.type.function_pointer.decl.inputs[*]" 1
-//@ is    "$.index[*][?(@.name=='ForAll')].inner.type_alias.type.function_pointer.decl.inputs[*][1].borrowed_ref.lifetime" \"\'a\"
-//@ is    "$.index[*][?(@.name=='ForAll')].inner.type_alias.type.function_pointer.decl.output.borrowed_ref.lifetime" \"\'a\"
+//@ count "$.index[*][?(@.name=='ForAll')].inner.type_alias.type.function_pointer.sig.inputs[*]" 1
+//@ is    "$.index[*][?(@.name=='ForAll')].inner.type_alias.type.function_pointer.sig.inputs[*][1].borrowed_ref.lifetime" \"\'a\"
+//@ is    "$.index[*][?(@.name=='ForAll')].inner.type_alias.type.function_pointer.sig.output.borrowed_ref.lifetime" \"\'a\"
 pub type ForAll = for<'a> fn(&'a i32) -> &'a i32;
diff --git a/tests/rustdoc-json/type/generic_default.rs b/tests/rustdoc-json/type/generic_default.rs
index 306376354ce..c1a05805014 100644
--- a/tests/rustdoc-json/type/generic_default.rs
+++ b/tests/rustdoc-json/type/generic_default.rs
@@ -25,7 +25,7 @@ pub struct MyError {}
 //@ has    "$.index[*][?(@.name=='MyResult')].inner.type_alias.type.resolved_path"
 //@ is    "$.index[*][?(@.name=='MyResult')].inner.type_alias.type.resolved_path.id" $result
 //@ is    "$.index[*][?(@.name=='MyResult')].inner.type_alias.type.resolved_path.name" \"Result\"
-//@ is    "$.index[*][?(@.name=='MyResult')].inner.type_alias.type.resolved_path.args.angle_bracketed.bindings" []
+//@ is    "$.index[*][?(@.name=='MyResult')].inner.type_alias.type.resolved_path.args.angle_bracketed.constraints" []
 //@ has    "$.index[*][?(@.name=='MyResult')].inner.type_alias.type.resolved_path.args.angle_bracketed.args[0].type.generic"
 //@ has    "$.index[*][?(@.name=='MyResult')].inner.type_alias.type.resolved_path.args.angle_bracketed.args[1].type.generic"
 //@ is    "$.index[*][?(@.name=='MyResult')].inner.type_alias.type.resolved_path.args.angle_bracketed.args[0].type.generic" \"T\"
diff --git a/tests/rustdoc-json/type/hrtb.rs b/tests/rustdoc-json/type/hrtb.rs
index a28b2fddf46..825720e9198 100644
--- a/tests/rustdoc-json/type/hrtb.rs
+++ b/tests/rustdoc-json/type/hrtb.rs
@@ -12,10 +12,10 @@ where
 
 //@ is "$.index[*][?(@.name=='dynfn')].inner.function.generics" '{"params": [], "where_predicates": []}'
 //@ is "$.index[*][?(@.name=='dynfn')].inner.function.generics" '{"params": [], "where_predicates": []}'
-//@ is "$.index[*][?(@.name=='dynfn')].inner.function.decl.inputs[0][1].borrowed_ref.type.dyn_trait.lifetime" null
-//@ count "$.index[*][?(@.name=='dynfn')].inner.function.decl.inputs[0][1].borrowed_ref.type.dyn_trait.traits[*]" 1
-//@ is "$.index[*][?(@.name=='dynfn')].inner.function.decl.inputs[0][1].borrowed_ref.type.dyn_trait.traits[0].generic_params" '[{"kind": {"lifetime": {"outlives": []}},"name": "'\''a"},{"kind": {"lifetime": {"outlives": []}},"name": "'\''b"}]'
-//@ is "$.index[*][?(@.name=='dynfn')].inner.function.decl.inputs[0][1].borrowed_ref.type.dyn_trait.traits[0].trait.name" '"Fn"'
+//@ is "$.index[*][?(@.name=='dynfn')].inner.function.sig.inputs[0][1].borrowed_ref.type.dyn_trait.lifetime" null
+//@ count "$.index[*][?(@.name=='dynfn')].inner.function.sig.inputs[0][1].borrowed_ref.type.dyn_trait.traits[*]" 1
+//@ is "$.index[*][?(@.name=='dynfn')].inner.function.sig.inputs[0][1].borrowed_ref.type.dyn_trait.traits[0].generic_params" '[{"kind": {"lifetime": {"outlives": []}},"name": "'\''a"},{"kind": {"lifetime": {"outlives": []}},"name": "'\''b"}]'
+//@ is "$.index[*][?(@.name=='dynfn')].inner.function.sig.inputs[0][1].borrowed_ref.type.dyn_trait.traits[0].trait.name" '"Fn"'
 pub fn dynfn(f: &dyn for<'a, 'b> Fn(&'a i32, &'b i32)) {
     let zero = 0;
     f(&zero, &zero);
diff --git a/tests/rustdoc-json/type/inherent_associated_type.rs b/tests/rustdoc-json/type/inherent_associated_type.rs
index 386c7c80d7f..b8ce11fc6e1 100644
--- a/tests/rustdoc-json/type/inherent_associated_type.rs
+++ b/tests/rustdoc-json/type/inherent_associated_type.rs
@@ -10,9 +10,9 @@ pub struct Owner;
 pub fn create() -> Owner::Metadata {
     OwnerMetadata
 }
-//@ is '$.index[*][?(@.name=="create")].inner.function.decl.output.qualified_path.name' '"Metadata"'
-//@ is '$.index[*][?(@.name=="create")].inner.function.decl.output.qualified_path.trait' null
-//@ is '$.index[*][?(@.name=="create")].inner.function.decl.output.qualified_path.self_type.resolved_path.id' $Owner
+//@ is '$.index[*][?(@.name=="create")].inner.function.sig.output.qualified_path.name' '"Metadata"'
+//@ is '$.index[*][?(@.name=="create")].inner.function.sig.output.qualified_path.trait' null
+//@ is '$.index[*][?(@.name=="create")].inner.function.sig.output.qualified_path.self_type.resolved_path.id' $Owner
 
 /// impl
 impl Owner {
@@ -21,4 +21,4 @@ impl Owner {
 }
 //@ set iat = '$.index[*][?(@.docs=="iat")].id'
 //@ is '$.index[*][?(@.docs=="impl")].inner.impl.items[*]' $iat
-//@ is '$.index[*][?(@.docs=="iat")].inner.assoc_type.default.resolved_path.id' $OwnerMetadata
+//@ is '$.index[*][?(@.docs=="iat")].inner.assoc_type.type.resolved_path.id' $OwnerMetadata
diff --git a/tests/rustdoc-json/type/inherent_associated_type_bound.rs b/tests/rustdoc-json/type/inherent_associated_type_bound.rs
index 45fe19bf467..d0a88b1970f 100644
--- a/tests/rustdoc-json/type/inherent_associated_type_bound.rs
+++ b/tests/rustdoc-json/type/inherent_associated_type_bound.rs
@@ -5,14 +5,14 @@
 //@ set Carrier = '$.index[*][?(@.name=="Carrier")].id'
 pub struct Carrier<'a>(&'a ());
 
-//@ count "$.index[*][?(@.name=='user')].inner.function.decl.inputs[*]" 1
-//@ is "$.index[*][?(@.name=='user')].inner.function.decl.inputs[0][0]" '"_"'
-//@ is '$.index[*][?(@.name=="user")].inner.function.decl.inputs[0][1].function_pointer.generic_params[*].name' \""'b"\"
-//@ is '$.index[*][?(@.name=="user")].inner.function.decl.inputs[0][1].function_pointer.decl.inputs[0][1].qualified_path.self_type.resolved_path.id' $Carrier
-//@ is '$.index[*][?(@.name=="user")].inner.function.decl.inputs[0][1].function_pointer.decl.inputs[0][1].qualified_path.self_type.resolved_path.args.angle_bracketed.args[0].lifetime' \""'b"\"
-//@ is '$.index[*][?(@.name=="user")].inner.function.decl.inputs[0][1].function_pointer.decl.inputs[0][1].qualified_path.name' '"Focus"'
-//@ is '$.index[*][?(@.name=="user")].inner.function.decl.inputs[0][1].function_pointer.decl.inputs[0][1].qualified_path.trait' null
-//@ is '$.index[*][?(@.name=="user")].inner.function.decl.inputs[0][1].function_pointer.decl.inputs[0][1].qualified_path.args.angle_bracketed.args[0].type.primitive' '"i32"'
+//@ count "$.index[*][?(@.name=='user')].inner.function.sig.inputs[*]" 1
+//@ is "$.index[*][?(@.name=='user')].inner.function.sig.inputs[0][0]" '"_"'
+//@ is '$.index[*][?(@.name=="user")].inner.function.sig.inputs[0][1].function_pointer.generic_params[*].name' \""'b"\"
+//@ is '$.index[*][?(@.name=="user")].inner.function.sig.inputs[0][1].function_pointer.sig.inputs[0][1].qualified_path.self_type.resolved_path.id' $Carrier
+//@ is '$.index[*][?(@.name=="user")].inner.function.sig.inputs[0][1].function_pointer.sig.inputs[0][1].qualified_path.self_type.resolved_path.args.angle_bracketed.args[0].lifetime' \""'b"\"
+//@ is '$.index[*][?(@.name=="user")].inner.function.sig.inputs[0][1].function_pointer.sig.inputs[0][1].qualified_path.name' '"Focus"'
+//@ is '$.index[*][?(@.name=="user")].inner.function.sig.inputs[0][1].function_pointer.sig.inputs[0][1].qualified_path.trait' null
+//@ is '$.index[*][?(@.name=="user")].inner.function.sig.inputs[0][1].function_pointer.sig.inputs[0][1].qualified_path.args.angle_bracketed.args[0].type.primitive' '"i32"'
 pub fn user(_: for<'b> fn(Carrier<'b>::Focus<i32>)) {}
 
 impl<'a> Carrier<'a> {
diff --git a/tests/rustdoc-json/type/inherent_associated_type_projections.rs b/tests/rustdoc-json/type/inherent_associated_type_projections.rs
index 9b827a98419..e73e86d5817 100644
--- a/tests/rustdoc-json/type/inherent_associated_type_projections.rs
+++ b/tests/rustdoc-json/type/inherent_associated_type_projections.rs
@@ -5,12 +5,12 @@
 //@ set Parametrized = '$.index[*][?(@.name=="Parametrized")].id'
 pub struct Parametrized<T>(T);
 
-//@ count "$.index[*][?(@.name=='test')].inner.function.decl.inputs[*]" 1
-//@ is "$.index[*][?(@.name=='test')].inner.function.decl.inputs[0][0]" '"_"'
-//@ is '$.index[*][?(@.name=="test")].inner.function.decl.inputs[0][1].qualified_path.self_type.resolved_path.id' $Parametrized
-//@ is '$.index[*][?(@.name=="test")].inner.function.decl.inputs[0][1].qualified_path.self_type.resolved_path.args.angle_bracketed.args[0].type.primitive' \"i32\"
-//@ is '$.index[*][?(@.name=="test")].inner.function.decl.inputs[0][1].qualified_path.name' '"Proj"'
-//@ is '$.index[*][?(@.name=="test")].inner.function.decl.inputs[0][1].qualified_path.trait' null
+//@ count "$.index[*][?(@.name=='test')].inner.function.sig.inputs[*]" 1
+//@ is "$.index[*][?(@.name=='test')].inner.function.sig.inputs[0][0]" '"_"'
+//@ is '$.index[*][?(@.name=="test")].inner.function.sig.inputs[0][1].qualified_path.self_type.resolved_path.id' $Parametrized
+//@ is '$.index[*][?(@.name=="test")].inner.function.sig.inputs[0][1].qualified_path.self_type.resolved_path.args.angle_bracketed.args[0].type.primitive' \"i32\"
+//@ is '$.index[*][?(@.name=="test")].inner.function.sig.inputs[0][1].qualified_path.name' '"Proj"'
+//@ is '$.index[*][?(@.name=="test")].inner.function.sig.inputs[0][1].qualified_path.trait' null
 pub fn test(_: Parametrized<i32>::Proj) {}
 
 /// param_bool
diff --git a/tests/rustdoc-json/type_alias.rs b/tests/rustdoc-json/type_alias.rs
index ecf35c5987a..2f2b4c42d44 100644
--- a/tests/rustdoc-json/type_alias.rs
+++ b/tests/rustdoc-json/type_alias.rs
@@ -4,12 +4,12 @@
 //@ is "$.index[*][?(@.name=='IntVec')].span.filename" $FILE
 pub type IntVec = Vec<u32>;
 
-//@ is "$.index[*][?(@.name=='f')].inner.function.decl.output.resolved_path.id" $IntVec
+//@ is "$.index[*][?(@.name=='f')].inner.function.sig.output.resolved_path.id" $IntVec
 pub fn f() -> IntVec {
     vec![0; 32]
 }
 
-//@ !is "$.index[*][?(@.name=='g')].inner.function.decl.output.resolved_path.id" $IntVec
+//@ !is "$.index[*][?(@.name=='g')].inner.function.sig.output.resolved_path.id" $IntVec
 pub fn g() -> Vec<u32> {
     vec![0; 32]
 }
diff --git a/tests/rustdoc-json/unions/union.rs b/tests/rustdoc-json/unions/union.rs
index 4a97b5d4fb8..7f135a72dec 100644
--- a/tests/rustdoc-json/unions/union.rs
+++ b/tests/rustdoc-json/unions/union.rs
@@ -7,8 +7,8 @@ pub union Union {
     float: f32,
 }
 
-//@ has "$.index[*][?(@.name=='make_int_union')].inner.function.decl.output.resolved_path"
-//@ is "$.index[*][?(@.name=='make_int_union')].inner.function.decl.output.resolved_path.id" $Union
+//@ has "$.index[*][?(@.name=='make_int_union')].inner.function.sig.output.resolved_path"
+//@ is "$.index[*][?(@.name=='make_int_union')].inner.function.sig.output.resolved_path.id" $Union
 pub fn make_int_union(int: i32) -> Union {
     Union { int }
 }
diff --git a/tests/ui/async-await/async-closures/tainted-body-2.rs b/tests/ui/async-await/async-closures/tainted-body-2.rs
new file mode 100644
index 00000000000..73c6bdc30a0
--- /dev/null
+++ b/tests/ui/async-await/async-closures/tainted-body-2.rs
@@ -0,0 +1,18 @@
+//@ edition: 2021
+
+#![feature(async_closure)]
+
+// Ensure that building a by-ref async closure body doesn't ICE when the parent
+// body is tainted.
+
+fn main() {
+    missing;
+    //~^ ERROR cannot find value `missing` in this scope
+
+    // We don't do numerical inference fallback when the body is tainted.
+    // This leads to writeback folding the type of the coroutine-closure
+    // into an error type, since its signature contains that numerical
+    // infer var.
+    let c = async |_| {};
+    c(1);
+}
diff --git a/tests/ui/async-await/async-closures/tainted-body-2.stderr b/tests/ui/async-await/async-closures/tainted-body-2.stderr
new file mode 100644
index 00000000000..798d47064d9
--- /dev/null
+++ b/tests/ui/async-await/async-closures/tainted-body-2.stderr
@@ -0,0 +1,9 @@
+error[E0425]: cannot find value `missing` in this scope
+  --> $DIR/tainted-body-2.rs:9:5
+   |
+LL |     missing;
+   |     ^^^^^^^ not found in this scope
+
+error: aborting due to 1 previous error
+
+For more information about this error, try `rustc --explain E0425`.
diff --git a/tests/ui/async-await/async-closures/validate-synthetic-body.rs b/tests/ui/async-await/async-closures/validate-synthetic-body.rs
new file mode 100644
index 00000000000..67e683ac08a
--- /dev/null
+++ b/tests/ui/async-await/async-closures/validate-synthetic-body.rs
@@ -0,0 +1,19 @@
+//@ check-pass
+//@ edition: 2021
+
+#![feature(async_closure)]
+
+// Make sure that we don't hit a query cycle when validating
+// the by-move coroutine body for an async closure.
+
+use std::future::Future;
+
+async fn test<Fut: Future>(operation: impl Fn() -> Fut) {
+    operation().await;
+}
+
+pub async fn orchestrate_simple_crud() {
+    test(async || async {}.await).await;
+}
+
+fn main() {}
diff --git a/tests/ui/async-await/async-drop.rs b/tests/ui/async-await/async-drop.rs
index 12f120a0b12..4e60598661f 100644
--- a/tests/ui/async-await/async-drop.rs
+++ b/tests/ui/async-await/async-drop.rs
@@ -53,18 +53,20 @@ fn main() {
     let i = 13;
     let fut = pin!(async {
         test_async_drop(Int(0), 0).await;
-        test_async_drop(AsyncInt(0), 104).await;
-        test_async_drop([AsyncInt(1), AsyncInt(2)], 152).await;
-        test_async_drop((AsyncInt(3), AsyncInt(4)), 488).await;
+        // FIXME(#63818): niches in coroutines are disabled.
+        // Some of these sizes should be smaller, as indicated in comments.
+        test_async_drop(AsyncInt(0), /*104*/ 112).await;
+        test_async_drop([AsyncInt(1), AsyncInt(2)], /*152*/ 168).await;
+        test_async_drop((AsyncInt(3), AsyncInt(4)), /*488*/ 528).await;
         test_async_drop(5, 0).await;
         let j = 42;
         test_async_drop(&i, 0).await;
         test_async_drop(&j, 0).await;
-        test_async_drop(AsyncStruct { b: AsyncInt(8), a: AsyncInt(7), i: 6 }, 1688).await;
+        test_async_drop(AsyncStruct { b: AsyncInt(8), a: AsyncInt(7), i: 6 }, /*1688*/ 1792).await;
         test_async_drop(ManuallyDrop::new(AsyncInt(9)), 0).await;
 
         let foo = AsyncInt(10);
-        test_async_drop(AsyncReference { foo: &foo }, 104).await;
+        test_async_drop(AsyncReference { foo: &foo }, /*104*/ 112).await;
 
         let foo = AsyncInt(11);
         test_async_drop(
@@ -73,17 +75,17 @@ fn main() {
                 let foo = AsyncInt(10);
                 foo
             },
-            120,
+            /*120*/ 136,
         )
         .await;
 
-        test_async_drop(AsyncEnum::A(AsyncInt(12)), 680).await;
-        test_async_drop(AsyncEnum::B(SyncInt(13)), 680).await;
+        test_async_drop(AsyncEnum::A(AsyncInt(12)), /*680*/ 736).await;
+        test_async_drop(AsyncEnum::B(SyncInt(13)), /*680*/ 736).await;
 
-        test_async_drop(SyncInt(14), 16).await;
+        test_async_drop(SyncInt(14), /*16*/ 24).await;
         test_async_drop(
             SyncThenAsync { i: 15, a: AsyncInt(16), b: SyncInt(17), c: AsyncInt(18) },
-            3064,
+            /*3064*/ 3296,
         )
         .await;
 
@@ -99,11 +101,11 @@ fn main() {
                 black_box(core::future::ready(())).await;
                 foo
             },
-            120,
+            /*120*/ 136,
         )
         .await;
 
-        test_async_drop(AsyncUnion { signed: 21 }, 32).await;
+        test_async_drop(AsyncUnion { signed: 21 }, /*32*/ 40).await;
     });
     let res = fut.poll(&mut cx);
     assert_eq!(res, Poll::Ready(()));
diff --git a/tests/ui/async-await/future-sizes/async-awaiting-fut.stdout b/tests/ui/async-await/future-sizes/async-awaiting-fut.stdout
index def967ba195..642e27b2a57 100644
--- a/tests/ui/async-await/future-sizes/async-awaiting-fut.stdout
+++ b/tests/ui/async-await/future-sizes/async-awaiting-fut.stdout
@@ -14,28 +14,26 @@ print-type-size         field `.value`: 3077 bytes
 print-type-size type: `{async fn body of calls_fut<{async fn body of big_fut()}>()}`: 3077 bytes, alignment: 1 bytes
 print-type-size     discriminant: 1 bytes
 print-type-size     variant `Unresumed`: 1025 bytes
-print-type-size         upvar `.fut`: 1025 bytes, offset: 0 bytes, alignment: 1 bytes
+print-type-size         upvar `.fut`: 1025 bytes
 print-type-size     variant `Suspend0`: 2052 bytes
-print-type-size         upvar `.fut`: 1025 bytes, offset: 0 bytes, alignment: 1 bytes
-print-type-size         padding: 1 bytes
-print-type-size         local `.fut`: 1025 bytes, alignment: 1 bytes
+print-type-size         upvar `.fut`: 1025 bytes
+print-type-size         local `.fut`: 1025 bytes
 print-type-size         local `..coroutine_field4`: 1 bytes, type: bool
 print-type-size         local `.__awaitee`: 1 bytes, type: {async fn body of wait()}
 print-type-size     variant `Suspend1`: 3076 bytes
-print-type-size         upvar `.fut`: 1025 bytes, offset: 0 bytes, alignment: 1 bytes
-print-type-size         padding: 1026 bytes
+print-type-size         upvar `.fut`: 1025 bytes
+print-type-size         padding: 1025 bytes
 print-type-size         local `..coroutine_field4`: 1 bytes, alignment: 1 bytes, type: bool
 print-type-size         local `.__awaitee`: 1025 bytes, type: {async fn body of big_fut()}
 print-type-size     variant `Suspend2`: 2052 bytes
-print-type-size         upvar `.fut`: 1025 bytes, offset: 0 bytes, alignment: 1 bytes
-print-type-size         padding: 1 bytes
-print-type-size         local `.fut`: 1025 bytes, alignment: 1 bytes
+print-type-size         upvar `.fut`: 1025 bytes
+print-type-size         local `.fut`: 1025 bytes
 print-type-size         local `..coroutine_field4`: 1 bytes, type: bool
 print-type-size         local `.__awaitee`: 1 bytes, type: {async fn body of wait()}
 print-type-size     variant `Returned`: 1025 bytes
-print-type-size         upvar `.fut`: 1025 bytes, offset: 0 bytes, alignment: 1 bytes
+print-type-size         upvar `.fut`: 1025 bytes
 print-type-size     variant `Panicked`: 1025 bytes
-print-type-size         upvar `.fut`: 1025 bytes, offset: 0 bytes, alignment: 1 bytes
+print-type-size         upvar `.fut`: 1025 bytes
 print-type-size type: `std::mem::ManuallyDrop<{async fn body of big_fut()}>`: 1025 bytes, alignment: 1 bytes
 print-type-size     field `.value`: 1025 bytes
 print-type-size type: `std::mem::MaybeUninit<{async fn body of big_fut()}>`: 1025 bytes, alignment: 1 bytes
diff --git a/tests/ui/conditional-compilation/invalid-node-range-issue-129166.rs b/tests/ui/conditional-compilation/invalid-node-range-issue-129166.rs
new file mode 100644
index 00000000000..794e6fad3fc
--- /dev/null
+++ b/tests/ui/conditional-compilation/invalid-node-range-issue-129166.rs
@@ -0,0 +1,11 @@
+// This was triggering an assertion failure in `NodeRange::new`.
+
+#![feature(cfg_eval)]
+#![feature(stmt_expr_attributes)]
+
+fn f() -> u32 {
+    #[cfg_eval] #[cfg(not(FALSE))] 0
+    //~^ ERROR removing an expression is not supported in this position
+}
+
+fn main() {}
diff --git a/tests/ui/conditional-compilation/invalid-node-range-issue-129166.stderr b/tests/ui/conditional-compilation/invalid-node-range-issue-129166.stderr
new file mode 100644
index 00000000000..0699e182bd5
--- /dev/null
+++ b/tests/ui/conditional-compilation/invalid-node-range-issue-129166.stderr
@@ -0,0 +1,8 @@
+error: removing an expression is not supported in this position
+  --> $DIR/invalid-node-range-issue-129166.rs:7:17
+   |
+LL |     #[cfg_eval] #[cfg(not(FALSE))] 0
+   |                 ^^^^^^^^^^^^^^^^^^
+
+error: aborting due to 1 previous error
+
diff --git a/tests/ui/const-generics/invariant.rs b/tests/ui/const-generics/invariant.rs
index ee4ad4e7c4e..95a28b61dde 100644
--- a/tests/ui/const-generics/invariant.rs
+++ b/tests/ui/const-generics/invariant.rs
@@ -5,7 +5,7 @@ use std::marker::PhantomData;
 trait SadBee {
     const ASSOC: usize;
 }
-// fn(&'static ())` is a supertype of `for<'a> fn(&'a ())` while
+// `fn(&'static ())` is a supertype of `for<'a> fn(&'a ())` while
 // we allow two different impls for these types, leading
 // to different const eval results.
 impl SadBee for for<'a> fn(&'a ()) {
diff --git a/tests/ui/consts/const-float-bits-conv.rs b/tests/ui/consts/const-float-bits-conv.rs
index 3a526c54dc3..869498d1076 100644
--- a/tests/ui/consts/const-float-bits-conv.rs
+++ b/tests/ui/consts/const-float-bits-conv.rs
@@ -1,10 +1,9 @@
 //@ compile-flags: -Zmir-opt-level=0
 //@ run-pass
 
-#![feature(const_float_bits_conv)]
 #![feature(const_float_classify)]
-#![feature(f16)]
-#![feature(f128)]
+#![feature(f16, f16_const)]
+#![feature(f128, f128_const)]
 #![allow(unused_macro_rules)]
 // Don't promote
 const fn nop<T>(x: T) -> T { x }
diff --git a/tests/ui/consts/const-float-classify.rs b/tests/ui/consts/const-float-classify.rs
index c64d31a5c60..6e5097f7f2b 100644
--- a/tests/ui/consts/const-float-classify.rs
+++ b/tests/ui/consts/const-float-classify.rs
@@ -2,7 +2,6 @@
 //@ known-bug: #110395
 // FIXME(effects) run-pass
 
-#![feature(const_float_bits_conv)]
 #![feature(const_float_classify)]
 #![feature(const_trait_impl, effects)]
 #![allow(incomplete_features)]
diff --git a/tests/ui/consts/const-float-classify.stderr b/tests/ui/consts/const-float-classify.stderr
index 38acb8a2281..a35de8ad0ea 100644
--- a/tests/ui/consts/const-float-classify.stderr
+++ b/tests/ui/consts/const-float-classify.stderr
@@ -1,5 +1,5 @@
 error: const `impl` for trait `PartialEq` which is not marked with `#[const_trait]`
-  --> $DIR/const-float-classify.rs:13:12
+  --> $DIR/const-float-classify.rs:12:12
    |
 LL | impl const PartialEq<NonDet> for bool {
    |            ^^^^^^^^^^^^^^^^^
diff --git a/tests/ui/coroutine/discriminant.rs b/tests/ui/coroutine/discriminant.rs
index d6879e21825..ca4fcedd7e5 100644
--- a/tests/ui/coroutine/discriminant.rs
+++ b/tests/ui/coroutine/discriminant.rs
@@ -124,12 +124,14 @@ fn main() {
     };
 
     assert_eq!(size_of_val(&gen_u8_tiny_niche()), 1);
-    assert_eq!(size_of_val(&Some(gen_u8_tiny_niche())), 1); // uses niche
+    // FIXME(#63818): niches in coroutines are disabled.
+    // assert_eq!(size_of_val(&Some(gen_u8_tiny_niche())), 1); // uses niche
     assert_eq!(size_of_val(&Some(Some(gen_u8_tiny_niche()))), 2); // cannot use niche anymore
     assert_eq!(size_of_val(&gen_u8_full()), 1);
     assert_eq!(size_of_val(&Some(gen_u8_full())), 2); // cannot use niche
     assert_eq!(size_of_val(&gen_u16()), 2);
-    assert_eq!(size_of_val(&Some(gen_u16())), 2); // uses niche
+    // FIXME(#63818): niches in coroutines are disabled.
+    // assert_eq!(size_of_val(&Some(gen_u16())), 2); // uses niche
 
     cycle(gen_u8_tiny_niche(), 254);
     cycle(gen_u8_full(), 255);
diff --git a/tests/ui/coroutine/niche-in-coroutine.rs b/tests/ui/coroutine/niche-in-coroutine.rs
index 117ee9e6f03..f268ef09f89 100644
--- a/tests/ui/coroutine/niche-in-coroutine.rs
+++ b/tests/ui/coroutine/niche-in-coroutine.rs
@@ -15,5 +15,6 @@ fn main() {
         take(x);
     };
 
-    assert_eq!(size_of_val(&gen1), size_of_val(&Some(gen1)));
+    // FIXME(#63818): niches in coroutines are disabled. Should be `assert_eq`.
+    assert_ne!(size_of_val(&gen1), size_of_val(&Some(gen1)));
 }
diff --git a/tests/ui/delegation/generics/impl-to-free-fn-pass.rs b/tests/ui/delegation/generics/impl-to-free-fn-pass.rs
new file mode 100644
index 00000000000..3b39a457467
--- /dev/null
+++ b/tests/ui/delegation/generics/impl-to-free-fn-pass.rs
@@ -0,0 +1,29 @@
+//@ run-pass
+#![feature(fn_delegation)]
+#![allow(incomplete_features)]
+
+mod to_reuse {
+    pub fn foo<T, U>(_: T, y: U) -> U { y }
+}
+
+trait Trait<T> {
+    fn foo(&self, x: T) -> T { x }
+}
+struct F;
+impl<T> Trait<T> for F {}
+
+struct S<T>(F, T);
+
+impl<T, U> Trait<T> for S<U> {
+    reuse to_reuse::foo { &self.0 }
+}
+
+impl<T> S<T> {
+    reuse to_reuse::foo;
+}
+
+fn main() {
+    let s = S(F, 42);
+    assert_eq!(S::<i32>::foo(F, 1), 1);
+    assert_eq!(<S<_> as Trait<_>>::foo(&s, 1), 1);
+}
diff --git a/tests/ui/delegation/generics/impl-to-trait-method.rs b/tests/ui/delegation/generics/impl-to-trait-method.rs
new file mode 100644
index 00000000000..39e32e2ed15
--- /dev/null
+++ b/tests/ui/delegation/generics/impl-to-trait-method.rs
@@ -0,0 +1,44 @@
+#![feature(fn_delegation)]
+#![allow(incomplete_features)]
+
+mod bounds {
+    trait Trait0 {}
+
+    trait Trait1<T> {
+        fn foo<U>(&self)
+        where
+            T: Trait0,
+            U: Trait0,
+            Self: Trait0,
+            //~^ ERROR the trait bound `bounds::S: Trait0` is not satisfied
+        {
+        }
+    }
+
+    struct F;
+    impl<T> Trait1<T> for F {}
+
+    struct S(F);
+
+    impl<T> Trait1<T> for S {
+        reuse Trait1::<T>::foo { &self.0 }
+        //~^ ERROR the trait bound `bounds::F: Trait0` is not satisfied
+    }
+}
+
+mod unconstrained_parameter {
+    trait Trait<T> {
+        fn foo(&self) {}
+    }
+
+    struct F;
+    impl<T> Trait<T> for F {}
+
+    struct S(F);
+    impl S {
+        reuse Trait::foo { &self.0 }
+        //~^ ERROR type annotations needed
+    }
+}
+
+fn main() {}
diff --git a/tests/ui/delegation/generics/impl-to-trait-method.stderr b/tests/ui/delegation/generics/impl-to-trait-method.stderr
new file mode 100644
index 00000000000..aeba30de043
--- /dev/null
+++ b/tests/ui/delegation/generics/impl-to-trait-method.stderr
@@ -0,0 +1,49 @@
+error[E0277]: the trait bound `bounds::S: Trait0` is not satisfied
+  --> $DIR/impl-to-trait-method.rs:12:19
+   |
+LL |             Self: Trait0,
+   |                   ^^^^^^ the trait `Trait0` is not implemented for `bounds::S`
+   |
+help: this trait has no implementations, consider adding one
+  --> $DIR/impl-to-trait-method.rs:5:5
+   |
+LL |     trait Trait0 {}
+   |     ^^^^^^^^^^^^
+   = help: see issue #48214
+help: add `#![feature(trivial_bounds)]` to the crate attributes to enable
+   |
+LL + #![feature(trivial_bounds)]
+   |
+
+error[E0277]: the trait bound `bounds::F: Trait0` is not satisfied
+  --> $DIR/impl-to-trait-method.rs:24:34
+   |
+LL |         reuse Trait1::<T>::foo { &self.0 }
+   |                            ---   ^^^^^^^ the trait `Trait0` is not implemented for `bounds::F`
+   |                            |
+   |                            required by a bound introduced by this call
+   |
+help: this trait has no implementations, consider adding one
+  --> $DIR/impl-to-trait-method.rs:5:5
+   |
+LL |     trait Trait0 {}
+   |     ^^^^^^^^^^^^
+note: required by a bound in `Trait1::foo`
+  --> $DIR/impl-to-trait-method.rs:12:19
+   |
+LL |         fn foo<U>(&self)
+   |            --- required by a bound in this associated function
+...
+LL |             Self: Trait0,
+   |                   ^^^^^^ required by this bound in `Trait1::foo`
+
+error[E0282]: type annotations needed
+  --> $DIR/impl-to-trait-method.rs:39:22
+   |
+LL |         reuse Trait::foo { &self.0 }
+   |                      ^^^ cannot infer type for type parameter `T` declared on the trait `Trait`
+
+error: aborting due to 3 previous errors
+
+Some errors have detailed explanations: E0277, E0282.
+For more information about an error, try `rustc --explain E0277`.
diff --git a/tests/ui/delegation/generics/impl-trait-to-trait-method-pass.rs b/tests/ui/delegation/generics/impl-trait-to-trait-method-pass.rs
new file mode 100644
index 00000000000..72440fe82d4
--- /dev/null
+++ b/tests/ui/delegation/generics/impl-trait-to-trait-method-pass.rs
@@ -0,0 +1,77 @@
+//@ run-pass
+
+#![feature(fn_delegation)]
+#![allow(incomplete_features)]
+
+use std::iter::{Iterator, Map};
+
+pub mod same_trait {
+    use super::*;
+
+    pub struct MapOuter<I, F> {
+        pub inner: Map<I, F>
+    }
+
+    impl<B, I: Iterator, F> Iterator for MapOuter<I, F>
+    where
+        F: FnMut(I::Item) -> B,
+    {
+        type Item = <Map<I, F> as Iterator>::Item;
+
+        reuse Iterator::{next, fold} { self.inner }
+    }
+}
+use same_trait::MapOuter;
+
+mod another_trait {
+    use super::*;
+
+    trait ZipImpl<A, B> {
+        type Item;
+
+        fn next(&mut self) -> Option<Self::Item>;
+    }
+
+    pub struct Zip<A, B> {
+        pub a: A,
+        pub b: B,
+    }
+
+    impl<A: Iterator, B: Iterator> ZipImpl<A, B> for Zip<A, B> {
+        type Item = (A::Item, B::Item);
+
+        fn next(&mut self) -> Option<(A::Item, B::Item)> {
+            let x = self.a.next()?;
+            let y = self.b.next()?;
+            Some((x, y))
+        }
+    }
+
+    impl<A: Iterator, B: Iterator> Iterator for Zip<A, B> {
+        type Item = (A::Item, B::Item);
+
+        // Parameters are inherited from `Iterator::next`, not from `ZipImpl::next`.
+        // Otherwise, there would be a compilation error due to an unconstrained parameter.
+        reuse ZipImpl::next;
+    }
+}
+use another_trait::Zip;
+
+fn main() {
+    {
+        let x = vec![1, 2, 3];
+        let iter = x.iter().map(|val| val * 2);
+        let outer_iter = MapOuter { inner: iter };
+        let val = outer_iter.fold(0, |acc, x| acc + x);
+        assert_eq!(val, 12);
+    }
+
+    {
+        let x = vec![1, 2];
+        let y = vec![4, 5];
+
+        let mut zip = Zip { a: x.iter(), b: y.iter() };
+        assert_eq!(zip.next(), Some((&1, &4)));
+        assert_eq!(zip.next(), Some((&2, &5)));
+    }
+}
diff --git a/tests/ui/delegation/generics/inherent-impl-to-trait-method-pass.rs b/tests/ui/delegation/generics/inherent-impl-to-trait-method-pass.rs
new file mode 100644
index 00000000000..6f3bb178971
--- /dev/null
+++ b/tests/ui/delegation/generics/inherent-impl-to-trait-method-pass.rs
@@ -0,0 +1,23 @@
+//@ run-pass
+
+#![feature(fn_delegation)]
+#![allow(incomplete_features)]
+
+trait Trait<T> {
+    fn foo<U>(&self, x: T, y: U) -> (T, U) {
+        (x, y)
+    }
+}
+
+impl<T> Trait<T> for () {}
+struct S<T>(T, ());
+
+impl<T> S<T> {
+    reuse Trait::foo { self.1 }
+}
+
+
+fn main() {
+    let s = S((), ());
+    assert_eq!(s.foo(1u32, 2i32), (1u32, 2i32));
+}
diff --git a/tests/ui/delegation/generics/trait-method-to-other-pass.rs b/tests/ui/delegation/generics/trait-method-to-other-pass.rs
new file mode 100644
index 00000000000..2094705a05c
--- /dev/null
+++ b/tests/ui/delegation/generics/trait-method-to-other-pass.rs
@@ -0,0 +1,30 @@
+//@ run-pass
+
+#![feature(fn_delegation)]
+#![allow(incomplete_features)]
+
+mod to_reuse {
+    pub fn foo<T>(x: T) -> T { x }
+}
+
+trait Trait1<T, U> {
+    fn foo(&self, _: T, x: U) -> U { x }
+}
+
+#[derive(Default)]
+struct F;
+
+impl<T, U> Trait1<T, U> for F {}
+
+trait Trait2<T> {
+    fn get_f(&self) -> &F { &F }
+    reuse Trait1::foo as bar { self.get_f() }
+    reuse to_reuse::foo as baz;
+}
+
+impl Trait2<u64> for F {}
+
+fn main() {
+    assert_eq!(F.bar(1u8, 2u16), 2u16);
+    assert_eq!(F::baz(1u8), 1u8);
+}
diff --git a/tests/ui/delegation/ice-issue-124347.rs b/tests/ui/delegation/ice-issue-124347.rs
index 3bfae8face5..ee2bf9e33eb 100644
--- a/tests/ui/delegation/ice-issue-124347.rs
+++ b/tests/ui/delegation/ice-issue-124347.rs
@@ -1,12 +1,12 @@
 #![feature(fn_delegation)]
 #![allow(incomplete_features)]
 
+// FIXME(fn_delegation): `recursive delegation` error should be emitted here
 trait Trait {
     reuse Trait::foo { &self.0 }
-    //~^ ERROR recursive delegation is not supported yet
+    //~^ ERROR cycle detected when computing generics of `Trait::foo`
 }
 
-// FIXME(fn_delegation): `recursive delegation` error should be emitted here
 reuse foo;
 //~^ ERROR cycle detected when computing generics of `foo`
 
diff --git a/tests/ui/delegation/ice-issue-124347.stderr b/tests/ui/delegation/ice-issue-124347.stderr
index 87dd75ffec8..bd0bc970b94 100644
--- a/tests/ui/delegation/ice-issue-124347.stderr
+++ b/tests/ui/delegation/ice-issue-124347.stderr
@@ -1,8 +1,16 @@
-error: recursive delegation is not supported yet
-  --> $DIR/ice-issue-124347.rs:5:18
+error[E0391]: cycle detected when computing generics of `Trait::foo`
+  --> $DIR/ice-issue-124347.rs:6:18
    |
 LL |     reuse Trait::foo { &self.0 }
-   |                  ^^^ callee defined here
+   |                  ^^^
+   |
+   = note: ...which immediately requires computing generics of `Trait::foo` again
+note: cycle used when inheriting delegation signature
+  --> $DIR/ice-issue-124347.rs:6:18
+   |
+LL |     reuse Trait::foo { &self.0 }
+   |                  ^^^
+   = note: see https://rustc-dev-guide.rust-lang.org/overview.html#queries and https://rustc-dev-guide.rust-lang.org/query.html for more information
 
 error[E0391]: cycle detected when computing generics of `foo`
   --> $DIR/ice-issue-124347.rs:10:7
diff --git a/tests/ui/delegation/not-supported.rs b/tests/ui/delegation/not-supported.rs
deleted file mode 100644
index d5ac68ecf1b..00000000000
--- a/tests/ui/delegation/not-supported.rs
+++ /dev/null
@@ -1,116 +0,0 @@
-#![feature(const_trait_impl)]
-#![feature(c_variadic)]
-#![feature(effects)]
-#![feature(fn_delegation)]
-#![allow(incomplete_features)]
-
-mod generics {
-    trait GenericTrait<T> {
-        fn bar(&self, x: T) -> T { x }
-        fn bar1() {}
-    }
-    trait Trait {
-        fn foo(&self, x: i32) -> i32 { x }
-        fn foo1<'a>(&self, x: &'a i32) -> &'a i32 { x }
-        fn foo2<T>(&self, x: T) -> T { x }
-        fn foo3<'a: 'a>(_: &'a u32) {}
-
-        reuse GenericTrait::bar;
-        //~^ ERROR early bound generics are not supported for associated delegation items
-        reuse GenericTrait::bar1;
-        //~^ ERROR early bound generics are not supported for associated delegation items
-    }
-
-    struct F;
-    impl Trait for F {}
-    impl<T> GenericTrait<T> for F {}
-
-    struct S(F);
-
-    impl<T> GenericTrait<T> for S {
-        reuse <F as GenericTrait<T>>::bar { &self.0 }
-        //~^ ERROR early bound generics are not supported for associated delegation items
-        reuse GenericTrait::<T>::bar1;
-        //~^ ERROR early bound generics are not supported for associated delegation items
-    }
-
-    impl GenericTrait<()> for () {
-        reuse GenericTrait::bar { &F }
-        //~^ ERROR early bound generics are not supported for associated delegation items
-        reuse GenericTrait::bar1;
-        //~^ ERROR early bound generics are not supported for associated delegation items
-    }
-
-    impl Trait for &S {
-        reuse Trait::foo;
-        //~^ ERROR early bound generics are not supported for associated delegation items
-    }
-
-    impl Trait for S {
-        reuse Trait::foo1 { &self.0 }
-        reuse Trait::foo2 { &self.0 }
-        //~^ ERROR early bound generics are not supported for associated delegation items
-        //~| ERROR method `foo2` has 0 type parameters but its trait declaration has 1 type parameter
-        reuse <F as Trait>::foo3;
-        //~^ ERROR early bound generics are not supported for associated delegation items
-        //~| ERROR lifetime parameters or bounds on associated function `foo3` do not match the trait declaration
-    }
-
-    struct GenericS<T>(T);
-    impl<T> Trait for GenericS<T> {
-        reuse Trait::foo { &self.0 }
-        //~^ ERROR early bound generics are not supported for associated delegation items
-    }
-}
-
-mod opaque {
-    trait Trait {}
-    impl Trait for () {}
-
-    mod to_reuse {
-        use super::Trait;
-
-        pub fn opaque_ret() -> impl Trait { unimplemented!() }
-        //~^ warn: this function depends on never type fallback being `()`
-        //~| warn: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
-    }
-
-    trait ToReuse {
-        fn opaque_ret() -> impl Trait { unimplemented!() }
-        //~^ warn: this function depends on never type fallback being `()`
-        //~| warn: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
-    }
-
-    // FIXME: Inherited `impl Trait`s create query cycles when used inside trait impls.
-    impl ToReuse for u8 {
-        reuse to_reuse::opaque_ret; //~ ERROR cycle detected when computing type
-    }
-    impl ToReuse for u16 {
-        reuse ToReuse::opaque_ret; //~ ERROR cycle detected when computing type
-    }
-}
-
-mod recursive {
-    mod to_reuse1 {
-        pub mod to_reuse2 {
-            pub fn foo() {}
-        }
-
-        pub reuse to_reuse2::foo;
-    }
-
-    reuse to_reuse1::foo;
-    //~^ ERROR recursive delegation is not supported yet
-}
-
-mod effects {
-    #[const_trait]
-    trait Trait {
-        fn foo();
-    }
-
-    reuse Trait::foo;
-    //~^ ERROR delegation to a function with effect parameter is not supported yet
-}
-
-fn main() {}
diff --git a/tests/ui/delegation/not-supported.stderr b/tests/ui/delegation/not-supported.stderr
deleted file mode 100644
index 14d6b374bd2..00000000000
--- a/tests/ui/delegation/not-supported.stderr
+++ /dev/null
@@ -1,204 +0,0 @@
-error: using `#![feature(effects)]` without enabling next trait solver globally
-   |
-   = note: the next trait solver must be enabled globally for the effects feature to work correctly
-   = help: use `-Znext-solver` to enable
-
-error: early bound generics are not supported for associated delegation items
-  --> $DIR/not-supported.rs:18:29
-   |
-LL |         fn bar(&self, x: T) -> T { x }
-   |         ------------------------ callee defined here
-...
-LL |         reuse GenericTrait::bar;
-   |                             ^^^
-
-error: early bound generics are not supported for associated delegation items
-  --> $DIR/not-supported.rs:20:29
-   |
-LL |         fn bar1() {}
-   |         --------- callee defined here
-...
-LL |         reuse GenericTrait::bar1;
-   |                             ^^^^
-
-error: early bound generics are not supported for associated delegation items
-  --> $DIR/not-supported.rs:31:39
-   |
-LL |         fn bar(&self, x: T) -> T { x }
-   |         ------------------------ callee defined here
-...
-LL |         reuse <F as GenericTrait<T>>::bar { &self.0 }
-   |                                       ^^^
-
-error: early bound generics are not supported for associated delegation items
-  --> $DIR/not-supported.rs:33:34
-   |
-LL |         fn bar1() {}
-   |         --------- callee defined here
-...
-LL |         reuse GenericTrait::<T>::bar1;
-   |                                  ^^^^
-
-error: early bound generics are not supported for associated delegation items
-  --> $DIR/not-supported.rs:38:29
-   |
-LL |         fn bar(&self, x: T) -> T { x }
-   |         ------------------------ callee defined here
-...
-LL |         reuse GenericTrait::bar { &F }
-   |                             ^^^
-
-error: early bound generics are not supported for associated delegation items
-  --> $DIR/not-supported.rs:40:29
-   |
-LL |         fn bar1() {}
-   |         --------- callee defined here
-...
-LL |         reuse GenericTrait::bar1;
-   |                             ^^^^
-
-error: early bound generics are not supported for associated delegation items
-  --> $DIR/not-supported.rs:45:22
-   |
-LL |         fn foo(&self, x: i32) -> i32 { x }
-   |         ---------------------------- callee defined here
-...
-LL |         reuse Trait::foo;
-   |                      ^^^
-
-error[E0049]: method `foo2` has 0 type parameters but its trait declaration has 1 type parameter
-  --> $DIR/not-supported.rs:51:22
-   |
-LL |         fn foo2<T>(&self, x: T) -> T { x }
-   |                 - expected 1 type parameter
-...
-LL |         reuse Trait::foo2 { &self.0 }
-   |                      ^^^^ found 0 type parameters
-
-error: early bound generics are not supported for associated delegation items
-  --> $DIR/not-supported.rs:54:29
-   |
-LL |         fn foo3<'a: 'a>(_: &'a u32) {}
-   |         --------------------------- callee defined here
-...
-LL |         reuse <F as Trait>::foo3;
-   |                             ^^^^
-
-error[E0195]: lifetime parameters or bounds on associated function `foo3` do not match the trait declaration
-  --> $DIR/not-supported.rs:54:29
-   |
-LL |         fn foo3<'a: 'a>(_: &'a u32) {}
-   |                -------- lifetimes in impl do not match this associated function in trait
-...
-LL |         reuse <F as Trait>::foo3;
-   |                             ^^^^ lifetimes do not match associated function in trait
-
-error: delegation to a function with effect parameter is not supported yet
-  --> $DIR/not-supported.rs:112:18
-   |
-LL |         fn foo();
-   |         --------- callee defined here
-...
-LL |     reuse Trait::foo;
-   |                  ^^^
-
-error: early bound generics are not supported for associated delegation items
-  --> $DIR/not-supported.rs:61:22
-   |
-LL |         fn foo(&self, x: i32) -> i32 { x }
-   |         ---------------------------- callee defined here
-...
-LL |         reuse Trait::foo { &self.0 }
-   |                      ^^^
-
-error: early bound generics are not supported for associated delegation items
-  --> $DIR/not-supported.rs:51:22
-   |
-LL |         fn foo2<T>(&self, x: T) -> T { x }
-   |         ---------------------------- callee defined here
-...
-LL |         reuse Trait::foo2 { &self.0 }
-   |                      ^^^^
-
-warning: this function depends on never type fallback being `()`
-  --> $DIR/not-supported.rs:79:9
-   |
-LL |         fn opaque_ret() -> impl Trait { unimplemented!() }
-   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-   |
-   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
-   = note: for more information, see issue #123748 <https://github.com/rust-lang/rust/issues/123748>
-   = help: specify the types explicitly
-note: in edition 2024, the requirement `!: opaque::Trait` will fail
-  --> $DIR/not-supported.rs:79:28
-   |
-LL |         fn opaque_ret() -> impl Trait { unimplemented!() }
-   |                            ^^^^^^^^^^
-   = note: `#[warn(dependency_on_unit_never_type_fallback)]` on by default
-
-error[E0391]: cycle detected when computing type of `opaque::<impl at $DIR/not-supported.rs:85:5: 85:24>::{synthetic#0}`
-  --> $DIR/not-supported.rs:86:25
-   |
-LL |         reuse to_reuse::opaque_ret;
-   |                         ^^^^^^^^^^
-   |
-note: ...which requires comparing an impl and trait method signature, inferring any hidden `impl Trait` types in the process...
-  --> $DIR/not-supported.rs:86:25
-   |
-LL |         reuse to_reuse::opaque_ret;
-   |                         ^^^^^^^^^^
-   = note: ...which again requires computing type of `opaque::<impl at $DIR/not-supported.rs:85:5: 85:24>::{synthetic#0}`, completing the cycle
-note: cycle used when checking that `opaque::<impl at $DIR/not-supported.rs:85:5: 85:24>` is well-formed
-  --> $DIR/not-supported.rs:85:5
-   |
-LL |     impl ToReuse for u8 {
-   |     ^^^^^^^^^^^^^^^^^^^
-   = note: see https://rustc-dev-guide.rust-lang.org/overview.html#queries and https://rustc-dev-guide.rust-lang.org/query.html for more information
-
-warning: this function depends on never type fallback being `()`
-  --> $DIR/not-supported.rs:73:9
-   |
-LL |         pub fn opaque_ret() -> impl Trait { unimplemented!() }
-   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-   |
-   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
-   = note: for more information, see issue #123748 <https://github.com/rust-lang/rust/issues/123748>
-   = help: specify the types explicitly
-note: in edition 2024, the requirement `!: opaque::Trait` will fail
-  --> $DIR/not-supported.rs:73:32
-   |
-LL |         pub fn opaque_ret() -> impl Trait { unimplemented!() }
-   |                                ^^^^^^^^^^
-
-error[E0391]: cycle detected when computing type of `opaque::<impl at $DIR/not-supported.rs:88:5: 88:25>::{synthetic#0}`
-  --> $DIR/not-supported.rs:89:24
-   |
-LL |         reuse ToReuse::opaque_ret;
-   |                        ^^^^^^^^^^
-   |
-note: ...which requires comparing an impl and trait method signature, inferring any hidden `impl Trait` types in the process...
-  --> $DIR/not-supported.rs:89:24
-   |
-LL |         reuse ToReuse::opaque_ret;
-   |                        ^^^^^^^^^^
-   = note: ...which again requires computing type of `opaque::<impl at $DIR/not-supported.rs:88:5: 88:25>::{synthetic#0}`, completing the cycle
-note: cycle used when checking that `opaque::<impl at $DIR/not-supported.rs:88:5: 88:25>` is well-formed
-  --> $DIR/not-supported.rs:88:5
-   |
-LL |     impl ToReuse for u16 {
-   |     ^^^^^^^^^^^^^^^^^^^^
-   = note: see https://rustc-dev-guide.rust-lang.org/overview.html#queries and https://rustc-dev-guide.rust-lang.org/query.html for more information
-
-error: recursive delegation is not supported yet
-  --> $DIR/not-supported.rs:102:22
-   |
-LL |         pub reuse to_reuse2::foo;
-   |                              --- callee defined here
-...
-LL |     reuse to_reuse1::foo;
-   |                      ^^^
-
-error: aborting due to 17 previous errors; 2 warnings emitted
-
-Some errors have detailed explanations: E0049, E0195, E0391.
-For more information about an error, try `rustc --explain E0049`.
diff --git a/tests/ui/delegation/unsupported.rs b/tests/ui/delegation/unsupported.rs
new file mode 100644
index 00000000000..e57effff48d
--- /dev/null
+++ b/tests/ui/delegation/unsupported.rs
@@ -0,0 +1,57 @@
+#![feature(const_trait_impl)]
+#![feature(c_variadic)]
+#![feature(effects)]
+#![feature(fn_delegation)]
+#![allow(incomplete_features)]
+
+mod opaque {
+    trait Trait {}
+    impl Trait for () {}
+
+    mod to_reuse {
+        use super::Trait;
+
+        pub fn opaque_ret() -> impl Trait { unimplemented!() }
+        //~^ warn: this function depends on never type fallback being `()`
+        //~| warn: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
+    }
+
+    trait ToReuse {
+        fn opaque_ret() -> impl Trait { unimplemented!() }
+        //~^ warn: this function depends on never type fallback being `()`
+        //~| warn: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
+    }
+
+    // FIXME: Inherited `impl Trait`s create query cycles when used inside trait impls.
+    impl ToReuse for u8 {
+        reuse to_reuse::opaque_ret; //~ ERROR cycle detected when computing type
+    }
+    impl ToReuse for u16 {
+        reuse ToReuse::opaque_ret; //~ ERROR cycle detected when computing type
+    }
+}
+
+mod recursive {
+    mod to_reuse1 {
+        pub mod to_reuse2 {
+            pub fn foo() {}
+        }
+
+        pub reuse to_reuse2::foo;
+    }
+
+    reuse to_reuse1::foo;
+    //~^ ERROR recursive delegation is not supported yet
+}
+
+mod effects {
+    #[const_trait]
+    trait Trait {
+        fn foo();
+    }
+
+    reuse Trait::foo;
+    //~^ ERROR delegation to a function with effect parameter is not supported yet
+}
+
+fn main() {}
diff --git a/tests/ui/delegation/unsupported.stderr b/tests/ui/delegation/unsupported.stderr
new file mode 100644
index 00000000000..03ded300bb4
--- /dev/null
+++ b/tests/ui/delegation/unsupported.stderr
@@ -0,0 +1,95 @@
+error: using `#![feature(effects)]` without enabling next trait solver globally
+   |
+   = note: the next trait solver must be enabled globally for the effects feature to work correctly
+   = help: use `-Znext-solver` to enable
+
+warning: this function depends on never type fallback being `()`
+  --> $DIR/unsupported.rs:20:9
+   |
+LL |         fn opaque_ret() -> impl Trait { unimplemented!() }
+   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |
+   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
+   = note: for more information, see issue #123748 <https://github.com/rust-lang/rust/issues/123748>
+   = help: specify the types explicitly
+note: in edition 2024, the requirement `!: opaque::Trait` will fail
+  --> $DIR/unsupported.rs:20:28
+   |
+LL |         fn opaque_ret() -> impl Trait { unimplemented!() }
+   |                            ^^^^^^^^^^
+   = note: `#[warn(dependency_on_unit_never_type_fallback)]` on by default
+
+error[E0391]: cycle detected when computing type of `opaque::<impl at $DIR/unsupported.rs:26:5: 26:24>::{synthetic#0}`
+  --> $DIR/unsupported.rs:27:25
+   |
+LL |         reuse to_reuse::opaque_ret;
+   |                         ^^^^^^^^^^
+   |
+note: ...which requires comparing an impl and trait method signature, inferring any hidden `impl Trait` types in the process...
+  --> $DIR/unsupported.rs:27:25
+   |
+LL |         reuse to_reuse::opaque_ret;
+   |                         ^^^^^^^^^^
+   = note: ...which again requires computing type of `opaque::<impl at $DIR/unsupported.rs:26:5: 26:24>::{synthetic#0}`, completing the cycle
+note: cycle used when checking that `opaque::<impl at $DIR/unsupported.rs:26:5: 26:24>` is well-formed
+  --> $DIR/unsupported.rs:26:5
+   |
+LL |     impl ToReuse for u8 {
+   |     ^^^^^^^^^^^^^^^^^^^
+   = note: see https://rustc-dev-guide.rust-lang.org/overview.html#queries and https://rustc-dev-guide.rust-lang.org/query.html for more information
+
+warning: this function depends on never type fallback being `()`
+  --> $DIR/unsupported.rs:14:9
+   |
+LL |         pub fn opaque_ret() -> impl Trait { unimplemented!() }
+   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |
+   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
+   = note: for more information, see issue #123748 <https://github.com/rust-lang/rust/issues/123748>
+   = help: specify the types explicitly
+note: in edition 2024, the requirement `!: opaque::Trait` will fail
+  --> $DIR/unsupported.rs:14:32
+   |
+LL |         pub fn opaque_ret() -> impl Trait { unimplemented!() }
+   |                                ^^^^^^^^^^
+
+error[E0391]: cycle detected when computing type of `opaque::<impl at $DIR/unsupported.rs:29:5: 29:25>::{synthetic#0}`
+  --> $DIR/unsupported.rs:30:24
+   |
+LL |         reuse ToReuse::opaque_ret;
+   |                        ^^^^^^^^^^
+   |
+note: ...which requires comparing an impl and trait method signature, inferring any hidden `impl Trait` types in the process...
+  --> $DIR/unsupported.rs:30:24
+   |
+LL |         reuse ToReuse::opaque_ret;
+   |                        ^^^^^^^^^^
+   = note: ...which again requires computing type of `opaque::<impl at $DIR/unsupported.rs:29:5: 29:25>::{synthetic#0}`, completing the cycle
+note: cycle used when checking that `opaque::<impl at $DIR/unsupported.rs:29:5: 29:25>` is well-formed
+  --> $DIR/unsupported.rs:29:5
+   |
+LL |     impl ToReuse for u16 {
+   |     ^^^^^^^^^^^^^^^^^^^^
+   = note: see https://rustc-dev-guide.rust-lang.org/overview.html#queries and https://rustc-dev-guide.rust-lang.org/query.html for more information
+
+error: recursive delegation is not supported yet
+  --> $DIR/unsupported.rs:43:22
+   |
+LL |         pub reuse to_reuse2::foo;
+   |                              --- callee defined here
+...
+LL |     reuse to_reuse1::foo;
+   |                      ^^^
+
+error: delegation to a function with effect parameter is not supported yet
+  --> $DIR/unsupported.rs:53:18
+   |
+LL |         fn foo();
+   |         --------- callee defined here
+...
+LL |     reuse Trait::foo;
+   |                  ^^^
+
+error: aborting due to 5 previous errors; 2 warnings emitted
+
+For more information about this error, try `rustc --explain E0391`.
diff --git a/tests/ui/lexer/prefixed-lifetime.rs b/tests/ui/lexer/prefixed-lifetime.rs
new file mode 100644
index 00000000000..6191b97d576
--- /dev/null
+++ b/tests/ui/lexer/prefixed-lifetime.rs
@@ -0,0 +1,10 @@
+//@ edition: 2021
+
+macro_rules! w {
+    ($($tt:tt)*) => {};
+}
+
+w!('foo#lifetime);
+//~^ ERROR prefix `'foo` is unknown
+
+fn main() {}
diff --git a/tests/ui/lexer/prefixed-lifetime.stderr b/tests/ui/lexer/prefixed-lifetime.stderr
new file mode 100644
index 00000000000..39e8b5a2a57
--- /dev/null
+++ b/tests/ui/lexer/prefixed-lifetime.stderr
@@ -0,0 +1,14 @@
+error: prefix `'foo` is unknown
+  --> $DIR/prefixed-lifetime.rs:7:4
+   |
+LL | w!('foo#lifetime);
+   |    ^^^^ unknown prefix
+   |
+   = note: prefixed identifiers and literals are reserved since Rust 2021
+help: consider inserting whitespace here
+   |
+LL | w!('foo #lifetime);
+   |        +
+
+error: aborting due to 1 previous error
+
diff --git a/tests/ui/lifetimes/raw/gen-lt.e2024.stderr b/tests/ui/lifetimes/raw/gen-lt.e2024.stderr
new file mode 100644
index 00000000000..232453df8ef
--- /dev/null
+++ b/tests/ui/lifetimes/raw/gen-lt.e2024.stderr
@@ -0,0 +1,8 @@
+error: lifetimes cannot use keyword names
+  --> $DIR/gen-lt.rs:11:11
+   |
+LL | fn gen_lt<'gen>() {}
+   |           ^^^^
+
+error: aborting due to 1 previous error
+
diff --git a/tests/ui/lifetimes/raw/gen-lt.rs b/tests/ui/lifetimes/raw/gen-lt.rs
new file mode 100644
index 00000000000..4f3ede5b4a2
--- /dev/null
+++ b/tests/ui/lifetimes/raw/gen-lt.rs
@@ -0,0 +1,14 @@
+//@ revisions: e2021 e2024
+
+//@[e2021] edition:2021
+//@[e2024] edition:2024
+//@[e2024] compile-flags: -Zunstable-options
+
+//@[e2021] check-pass
+
+fn raw_gen_lt<'r#gen>() {}
+
+fn gen_lt<'gen>() {}
+//[e2024]~^ ERROR lifetimes cannot use keyword names
+
+fn main() {}
diff --git a/tests/ui/lifetimes/raw/lifetimes-eq.rs b/tests/ui/lifetimes/raw/lifetimes-eq.rs
new file mode 100644
index 00000000000..dddafb829ba
--- /dev/null
+++ b/tests/ui/lifetimes/raw/lifetimes-eq.rs
@@ -0,0 +1,8 @@
+//@ edition: 2021
+//@ check-pass
+
+// Test that `'r#a` is `'a`.
+
+fn test<'r#a>(x: &'a ()) {}
+
+fn main() {}
diff --git a/tests/ui/lifetimes/raw/macro-lt.rs b/tests/ui/lifetimes/raw/macro-lt.rs
new file mode 100644
index 00000000000..d1167b00467
--- /dev/null
+++ b/tests/ui/lifetimes/raw/macro-lt.rs
@@ -0,0 +1,12 @@
+//@ check-pass
+//@ edition: 2021
+
+macro_rules! lifetime {
+    ($lt:lifetime) => {
+        fn hello<$lt>() {}
+    }
+}
+
+lifetime!('r#struct);
+
+fn main() {}
diff --git a/tests/ui/lifetimes/raw/multiple-prefixes.rs b/tests/ui/lifetimes/raw/multiple-prefixes.rs
new file mode 100644
index 00000000000..f335373d8a7
--- /dev/null
+++ b/tests/ui/lifetimes/raw/multiple-prefixes.rs
@@ -0,0 +1,6 @@
+//@ edition: 2021
+
+fn test(x: &'r#r#r ()) {}
+//~^ ERROR expected type, found `#`
+
+fn main() {}
diff --git a/tests/ui/lifetimes/raw/multiple-prefixes.stderr b/tests/ui/lifetimes/raw/multiple-prefixes.stderr
new file mode 100644
index 00000000000..8d5479e0a4f
--- /dev/null
+++ b/tests/ui/lifetimes/raw/multiple-prefixes.stderr
@@ -0,0 +1,8 @@
+error: expected type, found `#`
+  --> $DIR/multiple-prefixes.rs:3:17
+   |
+LL | fn test(x: &'r#r#r ()) {}
+   |                 ^ expected type
+
+error: aborting due to 1 previous error
+
diff --git a/tests/ui/lifetimes/raw/prim-lt.rs b/tests/ui/lifetimes/raw/prim-lt.rs
new file mode 100644
index 00000000000..ca45efb65fd
--- /dev/null
+++ b/tests/ui/lifetimes/raw/prim-lt.rs
@@ -0,0 +1,8 @@
+//@ check-pass
+//@ edition: 2021
+
+// Checks a primitive name can be defined as a lifetime.
+
+fn foo<'r#i32>() {}
+
+fn main() {}
diff --git a/tests/ui/lifetimes/raw/simple.rs b/tests/ui/lifetimes/raw/simple.rs
new file mode 100644
index 00000000000..6f70a272203
--- /dev/null
+++ b/tests/ui/lifetimes/raw/simple.rs
@@ -0,0 +1,21 @@
+//@ check-pass
+//@ edition: 2021
+
+fn foo<'r#struct>() {}
+
+fn hr<T>() where for<'r#struct> T: Into<&'r#struct ()> {}
+
+trait Foo<'r#struct> {}
+
+trait Bar<'r#struct> {
+    fn method(&'r#struct self) {}
+    fn method2(self: &'r#struct Self) {}
+}
+
+fn labeled() {
+    'r#struct: loop {
+        break 'r#struct;
+    }
+}
+
+fn main() {}
diff --git a/tests/ui/lifetimes/raw/static-lt.rs b/tests/ui/lifetimes/raw/static-lt.rs
new file mode 100644
index 00000000000..1fec7097dab
--- /dev/null
+++ b/tests/ui/lifetimes/raw/static-lt.rs
@@ -0,0 +1,8 @@
+//@ check-pass
+//@ edition: 2021
+
+// Makes sure that `'r#static` is `'static`
+
+const FOO: &'r#static str = "hello, world";
+
+fn main() {}
diff --git a/tests/ui/lifetimes/raw/three-tokens.rs b/tests/ui/lifetimes/raw/three-tokens.rs
new file mode 100644
index 00000000000..2ae54ebbcb5
--- /dev/null
+++ b/tests/ui/lifetimes/raw/three-tokens.rs
@@ -0,0 +1,12 @@
+//@ edition: 2015
+//@ check-pass
+// Ensure that we parse `'r#lt` as three tokens in edition 2015.
+
+macro_rules! ed2015 {
+    ('r # lt) => {};
+    ($lt:lifetime) => { compile_error!() };
+}
+
+ed2015!('r#lt);
+
+fn main() {}
diff --git a/tests/ui/lint/elided-named-lifetimes/example-from-issue48686.stderr b/tests/ui/lint/elided-named-lifetimes/example-from-issue48686.stderr
index 8c5426a60cb..2d8c6e99643 100644
--- a/tests/ui/lint/elided-named-lifetimes/example-from-issue48686.stderr
+++ b/tests/ui/lint/elided-named-lifetimes/example-from-issue48686.stderr
@@ -9,6 +9,10 @@ note: the lint level is defined here
    |
 LL | #![deny(elided_named_lifetimes)]
    |         ^^^^^^^^^^^^^^^^^^^^^^
+help: consider specifying it explicitly
+   |
+LL |     pub fn get_mut(&'static self, x: &mut u8) -> &'static mut u8 {
+   |                                                   +++++++
 
 error: aborting due to 1 previous error
 
diff --git a/tests/ui/lint/elided-named-lifetimes/not-tied-to-crate.stderr b/tests/ui/lint/elided-named-lifetimes/not-tied-to-crate.stderr
index c465aab1a03..3c01375d501 100644
--- a/tests/ui/lint/elided-named-lifetimes/not-tied-to-crate.stderr
+++ b/tests/ui/lint/elided-named-lifetimes/not-tied-to-crate.stderr
@@ -9,6 +9,10 @@ note: the lint level is defined here
    |
 LL | #[warn(elided_named_lifetimes)]
    |        ^^^^^^^^^^^^^^^^^^^^^^
+help: consider specifying it explicitly
+   |
+LL |     fn bar(x: &'static u8) -> &'static u8 {
+   |                                +++++++
 
 error: elided lifetime has a name
   --> $DIR/not-tied-to-crate.rs:11:31
@@ -21,6 +25,10 @@ note: the lint level is defined here
    |
 LL |     #[deny(elided_named_lifetimes)]
    |            ^^^^^^^^^^^^^^^^^^^^^^
+help: consider specifying it explicitly
+   |
+LL |     fn baz(x: &'static u8) -> &'static u8 {
+   |                                +++++++
 
 error: aborting due to 1 previous error; 1 warning emitted
 
diff --git a/tests/ui/lint/elided-named-lifetimes/static.stderr b/tests/ui/lint/elided-named-lifetimes/static.stderr
index d2e9776cb4f..fa2a2d3460f 100644
--- a/tests/ui/lint/elided-named-lifetimes/static.stderr
+++ b/tests/ui/lint/elided-named-lifetimes/static.stderr
@@ -9,24 +9,43 @@ note: the lint level is defined here
    |
 LL | #![deny(elided_named_lifetimes)]
    |         ^^^^^^^^^^^^^^^^^^^^^^
+help: consider specifying it explicitly
+   |
+LL | fn ampersand(x: &'static u8) -> &'static u8 {
+   |                                  +++++++
 
 error: elided lifetime has a name
   --> $DIR/static.rs:23:32
    |
 LL | fn brackets(x: &'static u8) -> Brackets {
    |                                ^^^^^^^^ this elided lifetime gets resolved as `'static`
+   |
+help: consider specifying it explicitly
+   |
+LL | fn brackets(x: &'static u8) -> Brackets<'static> {
+   |                                        +++++++++
 
 error: elided lifetime has a name
   --> $DIR/static.rs:30:34
    |
 LL | fn comma(x: &'static u8) -> Comma<u8> {
    |                                  ^ this elided lifetime gets resolved as `'static`
+   |
+help: consider specifying it explicitly
+   |
+LL | fn comma(x: &'static u8) -> Comma<'static, u8> {
+   |                                   ++++++++
 
 error: elided lifetime has a name
   --> $DIR/static.rs:35:35
    |
 LL | fn underscore(x: &'static u8) -> &'_ u8 {
    |                                   ^^ this elided lifetime gets resolved as `'static`
+   |
+help: consider specifying it explicitly
+   |
+LL | fn underscore(x: &'static u8) -> &'static u8 {
+   |                                   ~~~~~~~
 
 error: aborting due to 4 previous errors
 
diff --git a/tests/ui/parser/extern-crate-unexpected-token.stderr b/tests/ui/parser/extern-crate-unexpected-token.stderr
index f83bb3e3e35..951b0274b0d 100644
--- a/tests/ui/parser/extern-crate-unexpected-token.stderr
+++ b/tests/ui/parser/extern-crate-unexpected-token.stderr
@@ -3,6 +3,11 @@ error: expected one of `crate` or `{`, found `crte`
    |
 LL | extern crte foo;
    |        ^^^^ expected one of `crate` or `{`
+   |
+help: there is a keyword `crate` with a similar name
+   |
+LL | extern crate foo;
+   |        ~~~~~
 
 error: aborting due to 1 previous error
 
diff --git a/tests/ui/parser/issues/issue-70549-resolve-after-recovered-self-ctor.stderr b/tests/ui/parser/issues/issue-70549-resolve-after-recovered-self-ctor.stderr
index 79c574ead61..00f372bc008 100644
--- a/tests/ui/parser/issues/issue-70549-resolve-after-recovered-self-ctor.stderr
+++ b/tests/ui/parser/issues/issue-70549-resolve-after-recovered-self-ctor.stderr
@@ -8,10 +8,16 @@ error: expected one of `:`, `@`, or `|`, found keyword `Self`
   --> $DIR/issue-70549-resolve-after-recovered-self-ctor.rs:4:17
    |
 LL |     fn foo(&mur Self) {}
-   |            -----^^^^
-   |            |    |
-   |            |    expected one of `:`, `@`, or `|`
-   |            help: declare the type after the parameter binding: `<identifier>: <type>`
+   |                 ^^^^ expected one of `:`, `@`, or `|`
+   |
+help: there is a keyword `mut` with a similar name
+   |
+LL |     fn foo(&mut Self) {}
+   |             ~~~
+help: declare the type after the parameter binding
+   |
+LL |     fn foo(<identifier>: <type>) {}
+   |            ~~~~~~~~~~~~~~~~~~~~
 
 error: unexpected lifetime `'static` in pattern
   --> $DIR/issue-70549-resolve-after-recovered-self-ctor.rs:8:13
@@ -35,16 +41,27 @@ error: expected one of `:`, `@`, or `|`, found keyword `Self`
   --> $DIR/issue-70549-resolve-after-recovered-self-ctor.rs:8:25
    |
 LL |     fn bar(&'static mur Self) {}
-   |            -------------^^^^
-   |            |            |
-   |            |            expected one of `:`, `@`, or `|`
-   |            help: declare the type after the parameter binding: `<identifier>: <type>`
+   |                         ^^^^ expected one of `:`, `@`, or `|`
+   |
+help: there is a keyword `mut` with a similar name
+   |
+LL |     fn bar(&'static mut Self) {}
+   |                     ~~~
+help: declare the type after the parameter binding
+   |
+LL |     fn bar(<identifier>: <type>) {}
+   |            ~~~~~~~~~~~~~~~~~~~~
 
 error: expected one of `:`, `@`, or `|`, found keyword `Self`
   --> $DIR/issue-70549-resolve-after-recovered-self-ctor.rs:14:17
    |
 LL |     fn baz(&mur Self @ _) {}
    |                 ^^^^ expected one of `:`, `@`, or `|`
+   |
+help: there is a keyword `mut` with a similar name
+   |
+LL |     fn baz(&mut Self @ _) {}
+   |             ~~~
 
 error[E0533]: expected unit struct, found self constructor `Self`
   --> $DIR/issue-70549-resolve-after-recovered-self-ctor.rs:4:17
diff --git a/tests/ui/parser/misspelled-keywords/assoc-type.rs b/tests/ui/parser/misspelled-keywords/assoc-type.rs
new file mode 100644
index 00000000000..a6b694a2abe
--- /dev/null
+++ b/tests/ui/parser/misspelled-keywords/assoc-type.rs
@@ -0,0 +1,6 @@
+trait Animal {
+    Type Result = u8;
+    //~^ ERROR expected one of
+}
+
+fn main() {}
diff --git a/tests/ui/parser/misspelled-keywords/assoc-type.stderr b/tests/ui/parser/misspelled-keywords/assoc-type.stderr
new file mode 100644
index 00000000000..677da53e340
--- /dev/null
+++ b/tests/ui/parser/misspelled-keywords/assoc-type.stderr
@@ -0,0 +1,18 @@
+error: expected one of `!` or `::`, found `Result`
+  --> $DIR/assoc-type.rs:2:10
+   |
+LL | trait Animal {
+   |              - while parsing this item list starting here
+LL |     Type Result = u8;
+   |          ^^^^^^ expected one of `!` or `::`
+LL |
+LL | }
+   | - the item list ends here
+   |
+help: write keyword `type` in lowercase
+   |
+LL |     type Result = u8;
+   |     ~~~~
+
+error: aborting due to 1 previous error
+
diff --git a/tests/ui/parser/misspelled-keywords/async-move.rs b/tests/ui/parser/misspelled-keywords/async-move.rs
new file mode 100644
index 00000000000..702a905e918
--- /dev/null
+++ b/tests/ui/parser/misspelled-keywords/async-move.rs
@@ -0,0 +1,6 @@
+//@ edition: 2018
+
+fn main() {
+    async Move {}
+    //~^ ERROR expected one of
+}
diff --git a/tests/ui/parser/misspelled-keywords/async-move.stderr b/tests/ui/parser/misspelled-keywords/async-move.stderr
new file mode 100644
index 00000000000..4be4b56e505
--- /dev/null
+++ b/tests/ui/parser/misspelled-keywords/async-move.stderr
@@ -0,0 +1,13 @@
+error: expected one of `move`, `|`, or `||`, found `Move`
+  --> $DIR/async-move.rs:4:11
+   |
+LL |     async Move {}
+   |           ^^^^ expected one of `move`, `|`, or `||`
+   |
+help: write keyword `move` in lowercase
+   |
+LL |     async move {}
+   |           ~~~~
+
+error: aborting due to 1 previous error
+
diff --git a/tests/ui/parser/misspelled-keywords/const-fn.rs b/tests/ui/parser/misspelled-keywords/const-fn.rs
new file mode 100644
index 00000000000..c4174b6a2ef
--- /dev/null
+++ b/tests/ui/parser/misspelled-keywords/const-fn.rs
@@ -0,0 +1,5 @@
+cnst fn code() {}
+//~^ ERROR expected one of
+
+fn main() {
+}
diff --git a/tests/ui/parser/misspelled-keywords/const-fn.stderr b/tests/ui/parser/misspelled-keywords/const-fn.stderr
new file mode 100644
index 00000000000..5646b26143c
--- /dev/null
+++ b/tests/ui/parser/misspelled-keywords/const-fn.stderr
@@ -0,0 +1,13 @@
+error: expected one of `!` or `::`, found keyword `fn`
+  --> $DIR/const-fn.rs:1:6
+   |
+LL | cnst fn code() {}
+   |      ^^ expected one of `!` or `::`
+   |
+help: there is a keyword `const` with a similar name
+   |
+LL | const fn code() {}
+   | ~~~~~
+
+error: aborting due to 1 previous error
+
diff --git a/tests/ui/parser/misspelled-keywords/const-generics.rs b/tests/ui/parser/misspelled-keywords/const-generics.rs
new file mode 100644
index 00000000000..2df64a87e27
--- /dev/null
+++ b/tests/ui/parser/misspelled-keywords/const-generics.rs
@@ -0,0 +1,4 @@
+fn foo<consta N: usize>(_arr: [i32; N]) {}
+//~^ ERROR expected one of
+
+fn main() {}
diff --git a/tests/ui/parser/misspelled-keywords/const-generics.stderr b/tests/ui/parser/misspelled-keywords/const-generics.stderr
new file mode 100644
index 00000000000..fd59999ab63
--- /dev/null
+++ b/tests/ui/parser/misspelled-keywords/const-generics.stderr
@@ -0,0 +1,13 @@
+error: expected one of `,`, `:`, `=`, or `>`, found `N`
+  --> $DIR/const-generics.rs:1:15
+   |
+LL | fn foo<consta N: usize>(_arr: [i32; N]) {}
+   |               ^ expected one of `,`, `:`, `=`, or `>`
+   |
+help: there is a keyword `const` with a similar name
+   |
+LL | fn foo<const N: usize>(_arr: [i32; N]) {}
+   |        ~~~~~
+
+error: aborting due to 1 previous error
+
diff --git a/tests/ui/parser/misspelled-keywords/const.rs b/tests/ui/parser/misspelled-keywords/const.rs
new file mode 100644
index 00000000000..b481408cb62
--- /dev/null
+++ b/tests/ui/parser/misspelled-keywords/const.rs
@@ -0,0 +1,4 @@
+cons A: u8 = 10;
+//~^ ERROR expected one of
+
+fn main() {}
diff --git a/tests/ui/parser/misspelled-keywords/const.stderr b/tests/ui/parser/misspelled-keywords/const.stderr
new file mode 100644
index 00000000000..35e4d731db7
--- /dev/null
+++ b/tests/ui/parser/misspelled-keywords/const.stderr
@@ -0,0 +1,13 @@
+error: expected one of `!` or `::`, found `A`
+  --> $DIR/const.rs:1:6
+   |
+LL | cons A: u8 = 10;
+   |      ^ expected one of `!` or `::`
+   |
+help: there is a keyword `const` with a similar name
+   |
+LL | const A: u8 = 10;
+   | ~~~~~
+
+error: aborting due to 1 previous error
+
diff --git a/tests/ui/parser/misspelled-keywords/for-loop.rs b/tests/ui/parser/misspelled-keywords/for-loop.rs
new file mode 100644
index 00000000000..6aba581cf17
--- /dev/null
+++ b/tests/ui/parser/misspelled-keywords/for-loop.rs
@@ -0,0 +1,4 @@
+fn main() {
+    form i in 1..10 {}
+    //~^ ERROR expected one of
+}
diff --git a/tests/ui/parser/misspelled-keywords/for-loop.stderr b/tests/ui/parser/misspelled-keywords/for-loop.stderr
new file mode 100644
index 00000000000..d2236ab074d
--- /dev/null
+++ b/tests/ui/parser/misspelled-keywords/for-loop.stderr
@@ -0,0 +1,13 @@
+error: expected one of `!`, `.`, `::`, `;`, `?`, `{`, `}`, or an operator, found `i`
+  --> $DIR/for-loop.rs:2:10
+   |
+LL |     form i in 1..10 {}
+   |          ^ expected one of 8 possible tokens
+   |
+help: there is a keyword `for` with a similar name
+   |
+LL |     for i in 1..10 {}
+   |     ~~~
+
+error: aborting due to 1 previous error
+
diff --git a/tests/ui/parser/misspelled-keywords/hrdt.rs b/tests/ui/parser/misspelled-keywords/hrdt.rs
new file mode 100644
index 00000000000..9ca9e1bfbee
--- /dev/null
+++ b/tests/ui/parser/misspelled-keywords/hrdt.rs
@@ -0,0 +1,16 @@
+struct Closure<F> {
+    data: (u8, u16),
+    func: F,
+}
+
+impl<F> Closure<F>
+    Where for<'a> F: Fn(&'a (u8, u16)) -> &'a u8,
+//~^ ERROR expected one of
+{
+    fn call(&self) -> &u8 {
+        (self.func)(&self.data)
+    }
+}
+
+
+fn main() {}
diff --git a/tests/ui/parser/misspelled-keywords/hrdt.stderr b/tests/ui/parser/misspelled-keywords/hrdt.stderr
new file mode 100644
index 00000000000..5393a730506
--- /dev/null
+++ b/tests/ui/parser/misspelled-keywords/hrdt.stderr
@@ -0,0 +1,13 @@
+error: expected one of `!`, `(`, `+`, `::`, `<`, `where`, or `{`, found keyword `for`
+  --> $DIR/hrdt.rs:7:11
+   |
+LL |     Where for<'a> F: Fn(&'a (u8, u16)) -> &'a u8,
+   |           ^^^ expected one of 7 possible tokens
+   |
+help: write keyword `where` in lowercase (notice the capitalization difference)
+   |
+LL |     where for<'a> F: Fn(&'a (u8, u16)) -> &'a u8,
+   |     ~~~~~
+
+error: aborting due to 1 previous error
+
diff --git a/tests/ui/parser/misspelled-keywords/impl-block.rs b/tests/ui/parser/misspelled-keywords/impl-block.rs
new file mode 100644
index 00000000000..dc2570c22c5
--- /dev/null
+++ b/tests/ui/parser/misspelled-keywords/impl-block.rs
@@ -0,0 +1,6 @@
+struct Human;
+
+ipml Human {}
+//~^ ERROR expected one of
+
+fn main() {}
diff --git a/tests/ui/parser/misspelled-keywords/impl-block.stderr b/tests/ui/parser/misspelled-keywords/impl-block.stderr
new file mode 100644
index 00000000000..d86ae326ce2
--- /dev/null
+++ b/tests/ui/parser/misspelled-keywords/impl-block.stderr
@@ -0,0 +1,13 @@
+error: expected one of `!` or `::`, found `Human`
+  --> $DIR/impl-block.rs:3:6
+   |
+LL | ipml Human {}
+   |      ^^^^^ expected one of `!` or `::`
+   |
+help: there is a keyword `impl` with a similar name
+   |
+LL | impl Human {}
+   | ~~~~
+
+error: aborting due to 1 previous error
+
diff --git a/tests/ui/parser/misspelled-keywords/impl-return.rs b/tests/ui/parser/misspelled-keywords/impl-return.rs
new file mode 100644
index 00000000000..c9d1973179e
--- /dev/null
+++ b/tests/ui/parser/misspelled-keywords/impl-return.rs
@@ -0,0 +1,4 @@
+fn code() -> Impl Display {}
+//~^ ERROR expected one of
+
+fn main() {}
diff --git a/tests/ui/parser/misspelled-keywords/impl-return.stderr b/tests/ui/parser/misspelled-keywords/impl-return.stderr
new file mode 100644
index 00000000000..883f5cea73e
--- /dev/null
+++ b/tests/ui/parser/misspelled-keywords/impl-return.stderr
@@ -0,0 +1,13 @@
+error: expected one of `!`, `(`, `+`, `::`, `<`, `where`, or `{`, found `Display`
+  --> $DIR/impl-return.rs:1:19
+   |
+LL | fn code() -> Impl Display {}
+   |                   ^^^^^^^ expected one of 7 possible tokens
+   |
+help: write keyword `impl` in lowercase (notice the capitalization difference)
+   |
+LL | fn code() -> impl Display {}
+   |              ~~~~
+
+error: aborting due to 1 previous error
+
diff --git a/tests/ui/parser/misspelled-keywords/impl-trait-for.rs b/tests/ui/parser/misspelled-keywords/impl-trait-for.rs
new file mode 100644
index 00000000000..c6f3fcda5ad
--- /dev/null
+++ b/tests/ui/parser/misspelled-keywords/impl-trait-for.rs
@@ -0,0 +1,6 @@
+struct Human;
+
+impl Debug form Human {}
+//~^ ERROR expected one of
+
+fn main() {}
diff --git a/tests/ui/parser/misspelled-keywords/impl-trait-for.stderr b/tests/ui/parser/misspelled-keywords/impl-trait-for.stderr
new file mode 100644
index 00000000000..8dd5a4645f3
--- /dev/null
+++ b/tests/ui/parser/misspelled-keywords/impl-trait-for.stderr
@@ -0,0 +1,13 @@
+error: expected one of `!`, `(`, `+`, `::`, `<`, `where`, or `{`, found `Human`
+  --> $DIR/impl-trait-for.rs:3:17
+   |
+LL | impl Debug form Human {}
+   |                 ^^^^^ expected one of 7 possible tokens
+   |
+help: there is a keyword `for` with a similar name
+   |
+LL | impl Debug for Human {}
+   |            ~~~
+
+error: aborting due to 1 previous error
+
diff --git a/tests/ui/parser/misspelled-keywords/impl-trait.rs b/tests/ui/parser/misspelled-keywords/impl-trait.rs
new file mode 100644
index 00000000000..99380b8ac0e
--- /dev/null
+++ b/tests/ui/parser/misspelled-keywords/impl-trait.rs
@@ -0,0 +1,4 @@
+fn code<T: impll Debug>() -> u8 {}
+//~^ ERROR expected one of
+
+fn main() {}
diff --git a/tests/ui/parser/misspelled-keywords/impl-trait.stderr b/tests/ui/parser/misspelled-keywords/impl-trait.stderr
new file mode 100644
index 00000000000..15a8f99b8b1
--- /dev/null
+++ b/tests/ui/parser/misspelled-keywords/impl-trait.stderr
@@ -0,0 +1,17 @@
+error: expected one of `(`, `+`, `,`, `::`, `<`, `=`, or `>`, found `Debug`
+  --> $DIR/impl-trait.rs:1:18
+   |
+LL | fn code<T: impll Debug>() -> u8 {}
+   |                  ^^^^^ expected one of 7 possible tokens
+   |
+help: there is a keyword `impl` with a similar name
+   |
+LL | fn code<T: impl Debug>() -> u8 {}
+   |            ~~~~
+help: you might have meant to end the type parameters here
+   |
+LL | fn code<T: impll> Debug>() -> u8 {}
+   |                 +
+
+error: aborting due to 1 previous error
+
diff --git a/tests/ui/parser/misspelled-keywords/let-else.rs b/tests/ui/parser/misspelled-keywords/let-else.rs
new file mode 100644
index 00000000000..0d5a03e3e43
--- /dev/null
+++ b/tests/ui/parser/misspelled-keywords/let-else.rs
@@ -0,0 +1,4 @@
+fn main() {
+    let Some(a) = Some(10) elze {}
+    //~^ ERROR expected one of
+}
diff --git a/tests/ui/parser/misspelled-keywords/let-else.stderr b/tests/ui/parser/misspelled-keywords/let-else.stderr
new file mode 100644
index 00000000000..6f41a0d99db
--- /dev/null
+++ b/tests/ui/parser/misspelled-keywords/let-else.stderr
@@ -0,0 +1,13 @@
+error: expected one of `.`, `;`, `?`, `else`, or an operator, found `elze`
+  --> $DIR/let-else.rs:2:28
+   |
+LL |     let Some(a) = Some(10) elze {}
+   |                            ^^^^ expected one of `.`, `;`, `?`, `else`, or an operator
+   |
+help: there is a keyword `else` with a similar name
+   |
+LL |     let Some(a) = Some(10) else {}
+   |                            ~~~~
+
+error: aborting due to 1 previous error
+
diff --git a/tests/ui/parser/misspelled-keywords/let-mut.rs b/tests/ui/parser/misspelled-keywords/let-mut.rs
new file mode 100644
index 00000000000..83228fe8c66
--- /dev/null
+++ b/tests/ui/parser/misspelled-keywords/let-mut.rs
@@ -0,0 +1,4 @@
+fn main() {
+    let muta a = 10;
+    //~^ ERROR expected one of
+}
diff --git a/tests/ui/parser/misspelled-keywords/let-mut.stderr b/tests/ui/parser/misspelled-keywords/let-mut.stderr
new file mode 100644
index 00000000000..766d2a04909
--- /dev/null
+++ b/tests/ui/parser/misspelled-keywords/let-mut.stderr
@@ -0,0 +1,13 @@
+error: expected one of `:`, `;`, `=`, `@`, or `|`, found `a`
+  --> $DIR/let-mut.rs:2:14
+   |
+LL |     let muta a = 10;
+   |              ^ expected one of `:`, `;`, `=`, `@`, or `|`
+   |
+help: there is a keyword `mut` with a similar name
+   |
+LL |     let mut a = 10;
+   |         ~~~
+
+error: aborting due to 1 previous error
+
diff --git a/tests/ui/parser/misspelled-keywords/let.rs b/tests/ui/parser/misspelled-keywords/let.rs
new file mode 100644
index 00000000000..461c3e518db
--- /dev/null
+++ b/tests/ui/parser/misspelled-keywords/let.rs
@@ -0,0 +1,9 @@
+fn main() {
+    Let a = 10;
+    //~^ ERROR expected one of
+}
+
+fn code() {
+    lett a = 10;
+    //~^ ERROR expected one of
+}
diff --git a/tests/ui/parser/misspelled-keywords/let.stderr b/tests/ui/parser/misspelled-keywords/let.stderr
new file mode 100644
index 00000000000..c2dcdef541d
--- /dev/null
+++ b/tests/ui/parser/misspelled-keywords/let.stderr
@@ -0,0 +1,24 @@
+error: expected one of `!`, `.`, `::`, `;`, `?`, `{`, `}`, or an operator, found `a`
+  --> $DIR/let.rs:2:9
+   |
+LL |     Let a = 10;
+   |         ^ expected one of 8 possible tokens
+   |
+help: write keyword `let` in lowercase
+   |
+LL |     let a = 10;
+   |     ~~~
+
+error: expected one of `!`, `.`, `::`, `;`, `?`, `{`, `}`, or an operator, found `a`
+  --> $DIR/let.rs:7:10
+   |
+LL |     lett a = 10;
+   |          ^ expected one of 8 possible tokens
+   |
+help: there is a keyword `let` with a similar name
+   |
+LL |     let a = 10;
+   |     ~~~
+
+error: aborting due to 2 previous errors
+
diff --git a/tests/ui/parser/misspelled-keywords/match.rs b/tests/ui/parser/misspelled-keywords/match.rs
new file mode 100644
index 00000000000..a31840a2d71
--- /dev/null
+++ b/tests/ui/parser/misspelled-keywords/match.rs
@@ -0,0 +1,5 @@
+fn main() {
+    let a = 10;
+    matche a {}
+    //~^ ERROR expected one of
+}
diff --git a/tests/ui/parser/misspelled-keywords/match.stderr b/tests/ui/parser/misspelled-keywords/match.stderr
new file mode 100644
index 00000000000..90780ebd38e
--- /dev/null
+++ b/tests/ui/parser/misspelled-keywords/match.stderr
@@ -0,0 +1,13 @@
+error: expected one of `!`, `.`, `::`, `;`, `?`, `{`, `}`, or an operator, found `a`
+  --> $DIR/match.rs:3:12
+   |
+LL |     matche a {}
+   |            ^ expected one of 8 possible tokens
+   |
+help: there is a keyword `match` with a similar name
+   |
+LL |     match a {}
+   |     ~~~~~
+
+error: aborting due to 1 previous error
+
diff --git a/tests/ui/parser/misspelled-keywords/mod.rs b/tests/ui/parser/misspelled-keywords/mod.rs
new file mode 100644
index 00000000000..24f0101bc5a
--- /dev/null
+++ b/tests/ui/parser/misspelled-keywords/mod.rs
@@ -0,0 +1,4 @@
+mode parser;
+//~^ ERROR expected one of
+
+fn main() {}
diff --git a/tests/ui/parser/misspelled-keywords/mod.stderr b/tests/ui/parser/misspelled-keywords/mod.stderr
new file mode 100644
index 00000000000..6daeb4e5a15
--- /dev/null
+++ b/tests/ui/parser/misspelled-keywords/mod.stderr
@@ -0,0 +1,13 @@
+error: expected one of `!` or `::`, found `parser`
+  --> $DIR/mod.rs:1:6
+   |
+LL | mode parser;
+   |      ^^^^^^ expected one of `!` or `::`
+   |
+help: there is a keyword `mod` with a similar name
+   |
+LL | mod parser;
+   | ~~~
+
+error: aborting due to 1 previous error
+
diff --git a/tests/ui/parser/misspelled-keywords/pub-fn.rs b/tests/ui/parser/misspelled-keywords/pub-fn.rs
new file mode 100644
index 00000000000..50d7129ce51
--- /dev/null
+++ b/tests/ui/parser/misspelled-keywords/pub-fn.rs
@@ -0,0 +1,5 @@
+puB fn code() {}
+//~^ ERROR expected one of
+
+fn main() {
+}
diff --git a/tests/ui/parser/misspelled-keywords/pub-fn.stderr b/tests/ui/parser/misspelled-keywords/pub-fn.stderr
new file mode 100644
index 00000000000..82ca7105a49
--- /dev/null
+++ b/tests/ui/parser/misspelled-keywords/pub-fn.stderr
@@ -0,0 +1,13 @@
+error: expected one of `#`, `async`, `auto`, `const`, `default`, `enum`, `extern`, `fn`, `gen`, `impl`, `macro_rules`, `macro`, `mod`, `pub`, `safe`, `static`, `struct`, `trait`, `type`, `unsafe`, or `use`, found `puB`
+  --> $DIR/pub-fn.rs:1:1
+   |
+LL | puB fn code() {}
+   | ^^^ expected one of 21 possible tokens
+   |
+help: write keyword `pub` in lowercase
+   |
+LL | pub fn code() {}
+   | ~~~
+
+error: aborting due to 1 previous error
+
diff --git a/tests/ui/parser/misspelled-keywords/ref.rs b/tests/ui/parser/misspelled-keywords/ref.rs
new file mode 100644
index 00000000000..76b367ae99b
--- /dev/null
+++ b/tests/ui/parser/misspelled-keywords/ref.rs
@@ -0,0 +1,9 @@
+fn main() {
+    let a = Some(vec![1, 2]);
+    match a {
+        Some(refe list) => println!("{list:?}"),
+        //~^ ERROR expected one of
+        //~| ERROR this pattern has 2 fields,
+        _ => println!("none"),
+    }
+}
diff --git a/tests/ui/parser/misspelled-keywords/ref.stderr b/tests/ui/parser/misspelled-keywords/ref.stderr
new file mode 100644
index 00000000000..3a79b7bdb00
--- /dev/null
+++ b/tests/ui/parser/misspelled-keywords/ref.stderr
@@ -0,0 +1,27 @@
+error: expected one of `)`, `,`, `@`, or `|`, found `list`
+  --> $DIR/ref.rs:4:19
+   |
+LL |         Some(refe list) => println!("{list:?}"),
+   |                   ^^^^ expected one of `)`, `,`, `@`, or `|`
+   |
+help: there is a keyword `ref` with a similar name
+   |
+LL |         Some(ref list) => println!("{list:?}"),
+   |              ~~~
+help: missing `,`
+   |
+LL |         Some(refe, list) => println!("{list:?}"),
+   |                  +
+
+error[E0023]: this pattern has 2 fields, but the corresponding tuple variant has 1 field
+  --> $DIR/ref.rs:4:14
+   |
+LL |         Some(refe list) => println!("{list:?}"),
+   |              ^^^^ ^^^^ expected 1 field, found 2
+  --> $SRC_DIR/core/src/option.rs:LL:COL
+   |
+   = note: tuple variant has 1 field
+
+error: aborting due to 2 previous errors
+
+For more information about this error, try `rustc --explain E0023`.
diff --git a/tests/ui/parser/misspelled-keywords/return.rs b/tests/ui/parser/misspelled-keywords/return.rs
new file mode 100644
index 00000000000..4bbe55d37da
--- /dev/null
+++ b/tests/ui/parser/misspelled-keywords/return.rs
@@ -0,0 +1,7 @@
+fn code() -> u8 {
+    let a = 10;
+    returnn a;
+    //~^ ERROR expected one of
+}
+
+fn main() {}
diff --git a/tests/ui/parser/misspelled-keywords/return.stderr b/tests/ui/parser/misspelled-keywords/return.stderr
new file mode 100644
index 00000000000..efa45f32299
--- /dev/null
+++ b/tests/ui/parser/misspelled-keywords/return.stderr
@@ -0,0 +1,13 @@
+error: expected one of `!`, `.`, `::`, `;`, `?`, `{`, `}`, or an operator, found `a`
+  --> $DIR/return.rs:3:13
+   |
+LL |     returnn a;
+   |             ^ expected one of 8 possible tokens
+   |
+help: there is a keyword `return` with a similar name
+   |
+LL |     return a;
+   |     ~~~~~~
+
+error: aborting due to 1 previous error
+
diff --git a/tests/ui/parser/misspelled-keywords/static-mut.rs b/tests/ui/parser/misspelled-keywords/static-mut.rs
new file mode 100644
index 00000000000..6509f62470a
--- /dev/null
+++ b/tests/ui/parser/misspelled-keywords/static-mut.rs
@@ -0,0 +1,5 @@
+static muta a: u8 = 0;
+//~^ ERROR expected one of
+//~| ERROR missing type for
+
+fn main() {}
diff --git a/tests/ui/parser/misspelled-keywords/static-mut.stderr b/tests/ui/parser/misspelled-keywords/static-mut.stderr
new file mode 100644
index 00000000000..3c25af548a3
--- /dev/null
+++ b/tests/ui/parser/misspelled-keywords/static-mut.stderr
@@ -0,0 +1,24 @@
+error: expected one of `:`, `;`, or `=`, found `a`
+  --> $DIR/static-mut.rs:1:13
+   |
+LL | static muta a: u8 = 0;
+   |             ^ expected one of `:`, `;`, or `=`
+   |
+help: there is a keyword `mut` with a similar name
+   |
+LL | static mut a: u8 = 0;
+   |        ~~~
+
+error: missing type for `static` item
+  --> $DIR/static-mut.rs:1:12
+   |
+LL | static muta a: u8 = 0;
+   |            ^
+   |
+help: provide a type for the item
+   |
+LL | static muta: <type> a: u8 = 0;
+   |            ++++++++
+
+error: aborting due to 2 previous errors
+
diff --git a/tests/ui/parser/misspelled-keywords/static.rs b/tests/ui/parser/misspelled-keywords/static.rs
new file mode 100644
index 00000000000..240f4f52c8d
--- /dev/null
+++ b/tests/ui/parser/misspelled-keywords/static.rs
@@ -0,0 +1,4 @@
+Static a = 0;
+//~^ ERROR expected one of
+
+fn main() {}
diff --git a/tests/ui/parser/misspelled-keywords/static.stderr b/tests/ui/parser/misspelled-keywords/static.stderr
new file mode 100644
index 00000000000..003aa3929bc
--- /dev/null
+++ b/tests/ui/parser/misspelled-keywords/static.stderr
@@ -0,0 +1,13 @@
+error: expected one of `!` or `::`, found `a`
+  --> $DIR/static.rs:1:8
+   |
+LL | Static a = 0;
+   |        ^ expected one of `!` or `::`
+   |
+help: write keyword `static` in lowercase (notice the capitalization difference)
+   |
+LL | static a = 0;
+   | ~~~~~~
+
+error: aborting due to 1 previous error
+
diff --git a/tests/ui/parser/misspelled-keywords/struct.rs b/tests/ui/parser/misspelled-keywords/struct.rs
new file mode 100644
index 00000000000..0f64dec6f56
--- /dev/null
+++ b/tests/ui/parser/misspelled-keywords/struct.rs
@@ -0,0 +1,4 @@
+Struct Foor {
+//~^ ERROR expected one of
+    hello: String,
+}
diff --git a/tests/ui/parser/misspelled-keywords/struct.stderr b/tests/ui/parser/misspelled-keywords/struct.stderr
new file mode 100644
index 00000000000..559182f9c8f
--- /dev/null
+++ b/tests/ui/parser/misspelled-keywords/struct.stderr
@@ -0,0 +1,13 @@
+error: expected one of `!` or `::`, found `Foor`
+  --> $DIR/struct.rs:1:8
+   |
+LL | Struct Foor {
+   |        ^^^^ expected one of `!` or `::`
+   |
+help: write keyword `struct` in lowercase (notice the capitalization difference)
+   |
+LL | struct Foor {
+   | ~~~~~~
+
+error: aborting due to 1 previous error
+
diff --git a/tests/ui/parser/misspelled-keywords/unsafe-fn.rs b/tests/ui/parser/misspelled-keywords/unsafe-fn.rs
new file mode 100644
index 00000000000..49a1322ad63
--- /dev/null
+++ b/tests/ui/parser/misspelled-keywords/unsafe-fn.rs
@@ -0,0 +1,4 @@
+unsafee fn code() {}
+//~^ ERROR expected one of
+
+fn main() {}
diff --git a/tests/ui/parser/misspelled-keywords/unsafe-fn.stderr b/tests/ui/parser/misspelled-keywords/unsafe-fn.stderr
new file mode 100644
index 00000000000..b13281b0395
--- /dev/null
+++ b/tests/ui/parser/misspelled-keywords/unsafe-fn.stderr
@@ -0,0 +1,13 @@
+error: expected one of `!` or `::`, found keyword `fn`
+  --> $DIR/unsafe-fn.rs:1:9
+   |
+LL | unsafee fn code() {}
+   |         ^^ expected one of `!` or `::`
+   |
+help: there is a keyword `unsafe` with a similar name
+   |
+LL | unsafe fn code() {}
+   | ~~~~~~
+
+error: aborting due to 1 previous error
+
diff --git a/tests/ui/parser/misspelled-keywords/use.rs b/tests/ui/parser/misspelled-keywords/use.rs
new file mode 100644
index 00000000000..f4911654354
--- /dev/null
+++ b/tests/ui/parser/misspelled-keywords/use.rs
@@ -0,0 +1,4 @@
+usee a::b;
+//~^ ERROR expected one of
+
+fn main() {}
diff --git a/tests/ui/parser/misspelled-keywords/use.stderr b/tests/ui/parser/misspelled-keywords/use.stderr
new file mode 100644
index 00000000000..db6dffdb613
--- /dev/null
+++ b/tests/ui/parser/misspelled-keywords/use.stderr
@@ -0,0 +1,13 @@
+error: expected one of `!` or `::`, found `a`
+  --> $DIR/use.rs:1:6
+   |
+LL | usee a::b;
+   |      ^ expected one of `!` or `::`
+   |
+help: there is a keyword `use` with a similar name
+   |
+LL | use a::b;
+   | ~~~
+
+error: aborting due to 1 previous error
+
diff --git a/tests/ui/parser/misspelled-keywords/where-clause.rs b/tests/ui/parser/misspelled-keywords/where-clause.rs
new file mode 100644
index 00000000000..c03d04d5fee
--- /dev/null
+++ b/tests/ui/parser/misspelled-keywords/where-clause.rs
@@ -0,0 +1,8 @@
+fn code<T>() -> u8
+wheree
+//~^ ERROR expected one of
+    T: Debug,
+{
+}
+
+fn main() {}
diff --git a/tests/ui/parser/misspelled-keywords/where-clause.stderr b/tests/ui/parser/misspelled-keywords/where-clause.stderr
new file mode 100644
index 00000000000..5143c30ca51
--- /dev/null
+++ b/tests/ui/parser/misspelled-keywords/where-clause.stderr
@@ -0,0 +1,15 @@
+error: expected one of `!`, `(`, `+`, `::`, `<`, `where`, or `{`, found `wheree`
+  --> $DIR/where-clause.rs:2:1
+   |
+LL | fn code<T>() -> u8
+   |                   - expected one of 7 possible tokens
+LL | wheree
+   | ^^^^^^ unexpected token
+   |
+help: there is a keyword `where` with a similar name
+   |
+LL | where
+   |
+
+error: aborting due to 1 previous error
+
diff --git a/tests/ui/parser/misspelled-keywords/while-loop.rs b/tests/ui/parser/misspelled-keywords/while-loop.rs
new file mode 100644
index 00000000000..37d337f3f19
--- /dev/null
+++ b/tests/ui/parser/misspelled-keywords/while-loop.rs
@@ -0,0 +1,5 @@
+fn main() {
+    whilee a < b {
+    //~^ ERROR expected one of
+    }
+}
diff --git a/tests/ui/parser/misspelled-keywords/while-loop.stderr b/tests/ui/parser/misspelled-keywords/while-loop.stderr
new file mode 100644
index 00000000000..7d150443f57
--- /dev/null
+++ b/tests/ui/parser/misspelled-keywords/while-loop.stderr
@@ -0,0 +1,13 @@
+error: expected one of `!`, `.`, `::`, `;`, `?`, `{`, `}`, or an operator, found `a`
+  --> $DIR/while-loop.rs:2:12
+   |
+LL |     whilee a < b {
+   |            ^ expected one of 8 possible tokens
+   |
+help: there is a keyword `while` with a similar name
+   |
+LL |     while a < b {
+   |     ~~~~~
+
+error: aborting due to 1 previous error
+
diff --git a/tests/ui/parser/misspelled-keywords/while-without-identifiers.rs b/tests/ui/parser/misspelled-keywords/while-without-identifiers.rs
new file mode 100644
index 00000000000..203db8306af
--- /dev/null
+++ b/tests/ui/parser/misspelled-keywords/while-without-identifiers.rs
@@ -0,0 +1,4 @@
+fn main() {
+    whilee 2 > 1 {}
+    //~^ ERROR expected one of
+}
diff --git a/tests/ui/parser/misspelled-keywords/while-without-identifiers.stderr b/tests/ui/parser/misspelled-keywords/while-without-identifiers.stderr
new file mode 100644
index 00000000000..121e3931314
--- /dev/null
+++ b/tests/ui/parser/misspelled-keywords/while-without-identifiers.stderr
@@ -0,0 +1,8 @@
+error: expected one of `!`, `.`, `::`, `;`, `?`, `{`, `}`, or an operator, found `2`
+  --> $DIR/while-without-identifiers.rs:2:12
+   |
+LL |     whilee 2 > 1 {}
+   |            ^ expected one of 8 possible tokens
+
+error: aborting due to 1 previous error
+
diff --git a/tests/ui/proc-macro/macro-rules-derive-cfg.rs b/tests/ui/proc-macro/macro-rules-derive-cfg.rs
index 68026a60be6..c34f1695761 100644
--- a/tests/ui/proc-macro/macro-rules-derive-cfg.rs
+++ b/tests/ui/proc-macro/macro-rules-derive-cfg.rs
@@ -14,17 +14,15 @@ extern crate test_macros;
 macro_rules! produce_it {
     ($expr:expr) => {
         #[derive(Print)]
-        struct Foo {
-            val: [bool; {
-                let a = #[cfg_attr(not(FALSE), rustc_dummy(first))] $expr;
-                0
-            }]
-        }
+        struct Foo(
+            [bool; #[cfg_attr(not(FALSE), rustc_dummy(first))] $expr]
+        );
     }
 }
 
 produce_it!(#[cfg_attr(not(FALSE), rustc_dummy(second))] {
-    #![cfg_attr(not(FALSE), allow(unused))]
+    #![cfg_attr(not(FALSE), rustc_dummy(third))]
+    #[cfg_attr(not(FALSE), rustc_dummy(fourth))]
     30
 });
 
diff --git a/tests/ui/proc-macro/macro-rules-derive-cfg.stdout b/tests/ui/proc-macro/macro-rules-derive-cfg.stdout
index fadf210127e..c1e46b50d40 100644
--- a/tests/ui/proc-macro/macro-rules-derive-cfg.stdout
+++ b/tests/ui/proc-macro/macro-rules-derive-cfg.stdout
@@ -1,21 +1,9 @@
-PRINT-DERIVE INPUT (DISPLAY): struct Foo
-{
-    val :
-    [bool;
-    {
-        let a = #[rustc_dummy(first)] #[rustc_dummy(second)]
-        { #![allow(unused)] 30 }; 0
-    }]
-}
-PRINT-DERIVE DEEP-RE-COLLECTED (DISPLAY): struct Foo
-{
-    val :
-    [bool;
-    {
-        let a = #[rustc_dummy(first)] #[rustc_dummy(second)]
-        { #! [allow(unused)] 30 }; 0
-    }]
-}
+PRINT-DERIVE INPUT (DISPLAY): struct
+Foo([bool; #[rustc_dummy(first)] #[rustc_dummy(second)]
+{ #![rustc_dummy(third)] #[rustc_dummy(fourth)] 30 }]);
+PRINT-DERIVE DEEP-RE-COLLECTED (DISPLAY): struct
+Foo([bool; #[rustc_dummy(first)] #[rustc_dummy(second)]
+{ #! [rustc_dummy(third)] #[rustc_dummy(fourth)] 30 }]);
 PRINT-DERIVE INPUT (DEBUG): TokenStream [
     Ident {
         ident: "struct",
@@ -26,155 +14,146 @@ PRINT-DERIVE INPUT (DEBUG): TokenStream [
         span: $DIR/macro-rules-derive-cfg.rs:17:16: 17:19 (#3),
     },
     Group {
-        delimiter: Brace,
+        delimiter: Parenthesis,
         stream: TokenStream [
-            Ident {
-                ident: "val",
-                span: $DIR/macro-rules-derive-cfg.rs:18:13: 18:16 (#3),
-            },
-            Punct {
-                ch: ':',
-                spacing: Alone,
-                span: $DIR/macro-rules-derive-cfg.rs:18:16: 18:17 (#3),
-            },
             Group {
                 delimiter: Bracket,
                 stream: TokenStream [
                     Ident {
                         ident: "bool",
-                        span: $DIR/macro-rules-derive-cfg.rs:18:19: 18:23 (#3),
+                        span: $DIR/macro-rules-derive-cfg.rs:18:14: 18:18 (#3),
                     },
                     Punct {
                         ch: ';',
                         spacing: Alone,
-                        span: $DIR/macro-rules-derive-cfg.rs:18:23: 18:24 (#3),
+                        span: $DIR/macro-rules-derive-cfg.rs:18:18: 18:19 (#3),
+                    },
+                    Punct {
+                        ch: '#',
+                        spacing: Alone,
+                        span: $DIR/macro-rules-derive-cfg.rs:18:20: 18:21 (#3),
                     },
                     Group {
-                        delimiter: Brace,
+                        delimiter: Bracket,
                         stream: TokenStream [
                             Ident {
-                                ident: "let",
-                                span: $DIR/macro-rules-derive-cfg.rs:19:17: 19:20 (#3),
+                                ident: "rustc_dummy",
+                                span: $DIR/macro-rules-derive-cfg.rs:18:43: 18:54 (#3),
                             },
+                            Group {
+                                delimiter: Parenthesis,
+                                stream: TokenStream [
+                                    Ident {
+                                        ident: "first",
+                                        span: $DIR/macro-rules-derive-cfg.rs:18:55: 18:60 (#3),
+                                    },
+                                ],
+                                span: $DIR/macro-rules-derive-cfg.rs:18:54: 18:61 (#3),
+                            },
+                        ],
+                        span: $DIR/macro-rules-derive-cfg.rs:18:21: 18:63 (#3),
+                    },
+                    Punct {
+                        ch: '#',
+                        spacing: Alone,
+                        span: $DIR/macro-rules-derive-cfg.rs:23:13: 23:14 (#0),
+                    },
+                    Group {
+                        delimiter: Bracket,
+                        stream: TokenStream [
                             Ident {
-                                ident: "a",
-                                span: $DIR/macro-rules-derive-cfg.rs:19:21: 19:22 (#3),
+                                ident: "rustc_dummy",
+                                span: $DIR/macro-rules-derive-cfg.rs:23:36: 23:47 (#0),
                             },
-                            Punct {
-                                ch: '=',
-                                spacing: Alone,
-                                span: $DIR/macro-rules-derive-cfg.rs:19:23: 19:24 (#3),
+                            Group {
+                                delimiter: Parenthesis,
+                                stream: TokenStream [
+                                    Ident {
+                                        ident: "second",
+                                        span: $DIR/macro-rules-derive-cfg.rs:23:48: 23:54 (#0),
+                                    },
+                                ],
+                                span: $DIR/macro-rules-derive-cfg.rs:23:47: 23:55 (#0),
                             },
+                        ],
+                        span: $DIR/macro-rules-derive-cfg.rs:23:14: 23:57 (#0),
+                    },
+                    Group {
+                        delimiter: Brace,
+                        stream: TokenStream [
                             Punct {
                                 ch: '#',
+                                spacing: Joint,
+                                span: $DIR/macro-rules-derive-cfg.rs:24:5: 24:6 (#0),
+                            },
+                            Punct {
+                                ch: '!',
                                 spacing: Alone,
-                                span: $DIR/macro-rules-derive-cfg.rs:19:25: 19:26 (#3),
+                                span: $DIR/macro-rules-derive-cfg.rs:24:6: 24:7 (#0),
                             },
                             Group {
                                 delimiter: Bracket,
                                 stream: TokenStream [
                                     Ident {
                                         ident: "rustc_dummy",
-                                        span: $DIR/macro-rules-derive-cfg.rs:19:48: 19:59 (#3),
+                                        span: $DIR/macro-rules-derive-cfg.rs:24:29: 24:40 (#0),
                                     },
                                     Group {
                                         delimiter: Parenthesis,
                                         stream: TokenStream [
                                             Ident {
-                                                ident: "first",
-                                                span: $DIR/macro-rules-derive-cfg.rs:19:60: 19:65 (#3),
+                                                ident: "third",
+                                                span: $DIR/macro-rules-derive-cfg.rs:24:41: 24:46 (#0),
                                             },
                                         ],
-                                        span: $DIR/macro-rules-derive-cfg.rs:19:59: 19:66 (#3),
+                                        span: $DIR/macro-rules-derive-cfg.rs:24:40: 24:47 (#0),
                                     },
                                 ],
-                                span: $DIR/macro-rules-derive-cfg.rs:19:26: 19:68 (#3),
+                                span: $DIR/macro-rules-derive-cfg.rs:24:7: 24:49 (#0),
                             },
                             Punct {
                                 ch: '#',
                                 spacing: Alone,
-                                span: $DIR/macro-rules-derive-cfg.rs:26:13: 26:14 (#0),
+                                span: $DIR/macro-rules-derive-cfg.rs:25:5: 25:6 (#0),
                             },
                             Group {
                                 delimiter: Bracket,
                                 stream: TokenStream [
                                     Ident {
                                         ident: "rustc_dummy",
-                                        span: $DIR/macro-rules-derive-cfg.rs:26:36: 26:47 (#0),
+                                        span: $DIR/macro-rules-derive-cfg.rs:25:28: 25:39 (#0),
                                     },
                                     Group {
                                         delimiter: Parenthesis,
                                         stream: TokenStream [
                                             Ident {
-                                                ident: "second",
-                                                span: $DIR/macro-rules-derive-cfg.rs:26:48: 26:54 (#0),
+                                                ident: "fourth",
+                                                span: $DIR/macro-rules-derive-cfg.rs:25:40: 25:46 (#0),
                                             },
                                         ],
-                                        span: $DIR/macro-rules-derive-cfg.rs:26:47: 26:55 (#0),
+                                        span: $DIR/macro-rules-derive-cfg.rs:25:39: 25:47 (#0),
                                     },
                                 ],
-                                span: $DIR/macro-rules-derive-cfg.rs:26:14: 26:57 (#0),
-                            },
-                            Group {
-                                delimiter: Brace,
-                                stream: TokenStream [
-                                    Punct {
-                                        ch: '#',
-                                        spacing: Joint,
-                                        span: $DIR/macro-rules-derive-cfg.rs:27:5: 27:6 (#0),
-                                    },
-                                    Punct {
-                                        ch: '!',
-                                        spacing: Alone,
-                                        span: $DIR/macro-rules-derive-cfg.rs:27:6: 27:7 (#0),
-                                    },
-                                    Group {
-                                        delimiter: Bracket,
-                                        stream: TokenStream [
-                                            Ident {
-                                                ident: "allow",
-                                                span: $DIR/macro-rules-derive-cfg.rs:27:29: 27:34 (#0),
-                                            },
-                                            Group {
-                                                delimiter: Parenthesis,
-                                                stream: TokenStream [
-                                                    Ident {
-                                                        ident: "unused",
-                                                        span: $DIR/macro-rules-derive-cfg.rs:27:35: 27:41 (#0),
-                                                    },
-                                                ],
-                                                span: $DIR/macro-rules-derive-cfg.rs:27:34: 27:42 (#0),
-                                            },
-                                        ],
-                                        span: $DIR/macro-rules-derive-cfg.rs:27:7: 27:44 (#0),
-                                    },
-                                    Literal {
-                                        kind: Integer,
-                                        symbol: "30",
-                                        suffix: None,
-                                        span: $DIR/macro-rules-derive-cfg.rs:28:5: 28:7 (#0),
-                                    },
-                                ],
-                                span: $DIR/macro-rules-derive-cfg.rs:26:58: 29:2 (#0),
-                            },
-                            Punct {
-                                ch: ';',
-                                spacing: Alone,
-                                span: $DIR/macro-rules-derive-cfg.rs:19:74: 19:75 (#3),
+                                span: $DIR/macro-rules-derive-cfg.rs:25:6: 25:49 (#0),
                             },
                             Literal {
                                 kind: Integer,
-                                symbol: "0",
+                                symbol: "30",
                                 suffix: None,
-                                span: $DIR/macro-rules-derive-cfg.rs:20:17: 20:18 (#3),
+                                span: $DIR/macro-rules-derive-cfg.rs:26:5: 26:7 (#0),
                             },
                         ],
-                        span: $DIR/macro-rules-derive-cfg.rs:18:25: 21:14 (#3),
+                        span: $DIR/macro-rules-derive-cfg.rs:23:58: 27:2 (#0),
                     },
                 ],
-                span: $DIR/macro-rules-derive-cfg.rs:18:18: 21:15 (#3),
+                span: $DIR/macro-rules-derive-cfg.rs:18:13: 18:70 (#3),
             },
         ],
-        span: $DIR/macro-rules-derive-cfg.rs:17:20: 22:10 (#3),
+        span: $DIR/macro-rules-derive-cfg.rs:17:19: 19:10 (#3),
+    },
+    Punct {
+        ch: ';',
+        spacing: Alone,
+        span: $DIR/macro-rules-derive-cfg.rs:19:10: 19:11 (#3),
     },
 ]
diff --git a/tests/ui/rust-2024/gen-kw.e2015.stderr b/tests/ui/rust-2024/gen-kw.e2015.stderr
index b1074f77e00..ff552f663c7 100644
--- a/tests/ui/rust-2024/gen-kw.e2015.stderr
+++ b/tests/ui/rust-2024/gen-kw.e2015.stderr
@@ -31,5 +31,14 @@ LL |     () => { mod test { fn gen() {} } }
    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2024!
    = note: for more information, see issue #49716 <https://github.com/rust-lang/rust/issues/49716>
 
-error: aborting due to 3 previous errors
+error: `gen` is a keyword in the 2024 edition
+  --> $DIR/gen-kw.rs:25:9
+   |
+LL | fn test<'gen>() {}
+   |         ^^^^ help: you can use a raw identifier to stay compatible: `'r#gen`
+   |
+   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2024!
+   = note: for more information, see issue #49716 <https://github.com/rust-lang/rust/issues/49716>
+
+error: aborting due to 4 previous errors
 
diff --git a/tests/ui/rust-2024/gen-kw.e2018.stderr b/tests/ui/rust-2024/gen-kw.e2018.stderr
index b902cff7fdb..efa812069c3 100644
--- a/tests/ui/rust-2024/gen-kw.e2018.stderr
+++ b/tests/ui/rust-2024/gen-kw.e2018.stderr
@@ -31,5 +31,14 @@ LL |     () => { mod test { fn gen() {} } }
    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2024!
    = note: for more information, see issue #49716 <https://github.com/rust-lang/rust/issues/49716>
 
-error: aborting due to 3 previous errors
+error: `gen` is a keyword in the 2024 edition
+  --> $DIR/gen-kw.rs:25:9
+   |
+LL | fn test<'gen>() {}
+   |         ^^^^ help: you can use a raw identifier to stay compatible: `'r#gen`
+   |
+   = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2024!
+   = note: for more information, see issue #49716 <https://github.com/rust-lang/rust/issues/49716>
+
+error: aborting due to 4 previous errors
 
diff --git a/tests/ui/rust-2024/gen-kw.rs b/tests/ui/rust-2024/gen-kw.rs
index 04251cbcac4..5a658470c0a 100644
--- a/tests/ui/rust-2024/gen-kw.rs
+++ b/tests/ui/rust-2024/gen-kw.rs
@@ -22,4 +22,9 @@ macro_rules! t {
     //[e2018]~| WARNING this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2024!
 }
 
+fn test<'gen>() {}
+//~^ ERROR `gen` is a keyword in the 2024 edition
+//[e2015]~| WARNING this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2024!
+//[e2018]~| WARNING this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2024!
+
 t!();