Auto merge of #102223 - matthiaskrgr:rollup-wb1qdhk, r=matthiaskrgr

Rollup of 11 pull requests

Successful merges:

 - #101780 (Add a platform support document for Android)
 - #102044 (Remove `RtlGenRandom` (take two))
 - #102081 (Adding ignore fuchsia tests for execvp (pre_exec))
 - #102082 (Adding ignore fuchsia non-applicable commands)
 - #102146 (rustdoc: CSS prevent sidebar width change jank)
 - #102152 (Calculate `ProjectionTy::trait_def_id` for return-position `impl Trait` in trait correctly)
 - #102175 (Also require other subtrees to always build successfully)
 - #102176 (Add `llvm-dis` to the set of tools in `ci-llvm`)
 - #102188 (Update doc after renaming `fn is_zero`)
 - #102199 (Improve rustdoc GUI tests)
 - #102218 (Document some missing command-line arguments)

Failed merges:

r? `@ghost`
`@rustbot` modify labels: rollup

25 files changed, 226 insertions, 106 deletions

diff --git a/compiler/rustc_middle/src/ty/sty.rs b/compiler/rustc_middle/src/ty/sty.rs
index e773b3032aa..258fb2e2f9f 100644
--- a/compiler/rustc_middle/src/ty/sty.rs
+++ b/compiler/rustc_middle/src/ty/sty.rs
@@ -1133,9 +1133,13 @@ pub struct ProjectionTy<'tcx> {
 
 impl<'tcx> ProjectionTy<'tcx> {
     pub fn trait_def_id(&self, tcx: TyCtxt<'tcx>) -> DefId {
-        let parent = tcx.parent(self.item_def_id);
-        assert_eq!(tcx.def_kind(parent), DefKind::Trait);
-        parent
+        match tcx.def_kind(self.item_def_id) {
+            DefKind::AssocTy | DefKind::AssocConst => tcx.parent(self.item_def_id),
+            DefKind::ImplTraitPlaceholder => {
+                tcx.parent(tcx.impl_trait_in_trait_parent(self.item_def_id))
+            }
+            kind => bug!("unexpected DefKind in ProjectionTy: {kind:?}"),
+        }
     }
 
     /// Extracts the underlying trait reference and own substs from this projection.
diff --git a/library/std/src/panicking.rs b/library/std/src/panicking.rs
index 38dcf6cbf7d..4b07b393a2f 100644
--- a/library/std/src/panicking.rs
+++ b/library/std/src/panicking.rs
@@ -300,7 +300,7 @@ pub mod panic_count {
     thread_local! { static LOCAL_PANIC_COUNT: Cell<usize> = const { Cell::new(0) } }
 
     // Sum of panic counts from all threads. The purpose of this is to have
-    // a fast path in `is_zero` (which is used by `panicking`). In any particular
+    // a fast path in `count_is_zero` (which is used by `panicking`). In any particular
     // thread, if that thread currently views `GLOBAL_PANIC_COUNT` as being zero,
     // then `LOCAL_PANIC_COUNT` in that thread is zero. This invariant holds before
     // and after increase and decrease, but not necessarily during their execution.
@@ -369,7 +369,7 @@ pub mod panic_count {
     }
 
     // Slow path is in a separate function to reduce the amount of code
-    // inlined from `is_zero`.
+    // inlined from `count_is_zero`.
     #[inline(never)]
     #[cold]
     fn is_zero_slow_path() -> bool {
diff --git a/library/std/src/sys/windows/c.rs b/library/std/src/sys/windows/c.rs
index 89d0ab59be8..c61a7e7d1e4 100644
--- a/library/std/src/sys/windows/c.rs
+++ b/library/std/src/sys/windows/c.rs
@@ -279,7 +279,6 @@ pub const STATUS_INVALID_PARAMETER: NTSTATUS = 0xc000000d_u32 as _;
 pub const STATUS_PENDING: NTSTATUS = 0x103 as _;
 pub const STATUS_END_OF_FILE: NTSTATUS = 0xC0000011_u32 as _;
 pub const STATUS_NOT_IMPLEMENTED: NTSTATUS = 0xC0000002_u32 as _;
-pub const STATUS_NOT_SUPPORTED: NTSTATUS = 0xC00000BB_u32 as _;
 
 // Equivalent to the `NT_SUCCESS` C preprocessor macro.
 // See: https://docs.microsoft.com/en-us/windows-hardware/drivers/kernel/using-ntstatus-values
@@ -289,6 +288,7 @@ pub fn nt_success(status: NTSTATUS) -> bool {
 
 // "RNG\0"
 pub const BCRYPT_RNG_ALGORITHM: &[u16] = &[b'R' as u16, b'N' as u16, b'G' as u16, 0];
+pub const BCRYPT_USE_SYSTEM_PREFERRED_RNG: DWORD = 0x00000002;
 
 #[repr(C)]
 pub struct UNICODE_STRING {
@@ -817,10 +817,6 @@ if #[cfg(not(target_vendor = "uwp"))] {
 
     #[link(name = "advapi32")]
     extern "system" {
-        // Forbidden when targeting UWP
-        #[link_name = "SystemFunction036"]
-        pub fn RtlGenRandom(RandomBuffer: *mut u8, RandomBufferLength: ULONG) -> BOOLEAN;
-
         // Allowed but unused by UWP
         pub fn OpenProcessToken(
             ProcessHandle: HANDLE,
diff --git a/library/std/src/sys/windows/rand.rs b/library/std/src/sys/windows/rand.rs
index d6cd8f80271..b5a49489d3f 100644
--- a/library/std/src/sys/windows/rand.rs
+++ b/library/std/src/sys/windows/rand.rs
@@ -13,15 +13,12 @@
 //! but significant number of users to experience panics caused by a failure of
 //! this function. See [#94098].
 //!
-//! The current version changes this to use the `BCRYPT_RNG_ALG_HANDLE`
-//! [Pseudo-handle], which gets the default RNG algorithm without querying the
-//! system preference thus hopefully avoiding the previous issue.
-//! This is only supported on Windows 10+ so a fallback is used for older versions.
+//! The current version falls back to using `BCryptOpenAlgorithmProvider` if
+//! `BCRYPT_USE_SYSTEM_PREFERRED_RNG` fails for any reason.
 //!
 //! [#94098]: https://github.com/rust-lang/rust/issues/94098
 //! [`RtlGenRandom`]: https://docs.microsoft.com/en-us/windows/win32/api/ntsecapi/nf-ntsecapi-rtlgenrandom
 //! [`BCryptGenRandom`]: https://docs.microsoft.com/en-us/windows/win32/api/bcrypt/nf-bcrypt-bcryptgenrandom
-//! [Pseudo-handle]: https://docs.microsoft.com/en-us/windows/win32/seccng/cng-algorithm-pseudo-handles
 use crate::mem;
 use crate::ptr;
 use crate::sys::c;
@@ -33,37 +30,35 @@ use crate::sys::c;
 /// [`HashMap`]: crate::collections::HashMap
 /// [`RandomState`]: crate::collections::hash_map::RandomState
 pub fn hashmap_random_keys() -> (u64, u64) {
-    Rng::open().and_then(|rng| rng.gen_random_keys()).unwrap_or_else(fallback_rng)
+    Rng::SYSTEM.gen_random_keys().unwrap_or_else(fallback_rng)
 }
 
-struct Rng(c::BCRYPT_ALG_HANDLE);
+struct Rng {
+    algorithm: c::BCRYPT_ALG_HANDLE,
+    flags: u32,
+}
 impl Rng {
-    #[cfg(miri)]
-    fn open() -> Result<Self, c::NTSTATUS> {
-        const BCRYPT_RNG_ALG_HANDLE: c::BCRYPT_ALG_HANDLE = ptr::invalid_mut(0x81);
-        let _ = (
-            c::BCryptOpenAlgorithmProvider,
-            c::BCryptCloseAlgorithmProvider,
-            c::BCRYPT_RNG_ALGORITHM,
-            c::STATUS_NOT_SUPPORTED,
-        );
-        Ok(Self(BCRYPT_RNG_ALG_HANDLE))
+    const SYSTEM: Self = unsafe { Self::new(ptr::null_mut(), c::BCRYPT_USE_SYSTEM_PREFERRED_RNG) };
+
+    /// Create the RNG from an existing algorithm handle.
+    ///
+    /// # Safety
+    ///
+    /// The handle must either be null or a valid algorithm handle.
+    const unsafe fn new(algorithm: c::BCRYPT_ALG_HANDLE, flags: u32) -> Self {
+        Self { algorithm, flags }
     }
-    #[cfg(not(miri))]
-    // Open a handle to the RNG algorithm.
+
+    /// Open a handle to the RNG algorithm.
     fn open() -> Result<Self, c::NTSTATUS> {
         use crate::sync::atomic::AtomicPtr;
         use crate::sync::atomic::Ordering::{Acquire, Release};
-        const ERROR_VALUE: c::LPVOID = ptr::invalid_mut(usize::MAX);
 
         // An atomic is used so we don't need to reopen the handle every time.
         static HANDLE: AtomicPtr<crate::ffi::c_void> = AtomicPtr::new(ptr::null_mut());
 
         let mut handle = HANDLE.load(Acquire);
-        // We use a sentinel value to designate an error occurred last time.
-        if handle == ERROR_VALUE {
-            Err(c::STATUS_NOT_SUPPORTED)
-        } else if handle.is_null() {
+        if handle.is_null() {
             let status = unsafe {
                 c::BCryptOpenAlgorithmProvider(
                     &mut handle,
@@ -80,13 +75,12 @@ impl Rng {
                     unsafe { c::BCryptCloseAlgorithmProvider(handle, 0) };
                     handle = previous_handle;
                 }
-                Ok(Self(handle))
+                Ok(unsafe { Self::new(handle, 0) })
             } else {
-                HANDLE.store(ERROR_VALUE, Release);
                 Err(status)
             }
         } else {
-            Ok(Self(handle))
+            Ok(unsafe { Self::new(handle, 0) })
         }
     }
 
@@ -94,33 +88,19 @@ impl Rng {
         let mut v = (0, 0);
         let status = unsafe {
             let size = mem::size_of_val(&v).try_into().unwrap();
-            c::BCryptGenRandom(self.0, ptr::addr_of_mut!(v).cast(), size, 0)
+            c::BCryptGenRandom(self.algorithm, ptr::addr_of_mut!(v).cast(), size, self.flags)
         };
         if c::nt_success(status) { Ok(v) } else { Err(status) }
     }
 }
 
-/// Generate random numbers using the fallback RNG function (RtlGenRandom)
-#[cfg(not(target_vendor = "uwp"))]
+/// Generate random numbers using the fallback RNG function
 #[inline(never)]
 fn fallback_rng(rng_status: c::NTSTATUS) -> (u64, u64) {
-    let mut v = (0, 0);
-    let ret =
-        unsafe { c::RtlGenRandom(&mut v as *mut _ as *mut u8, mem::size_of_val(&v) as c::ULONG) };
-
-    if ret != 0 {
-        v
-    } else {
-        panic!(
-            "RNG broken: {rng_status:#x}, fallback RNG broken: {}",
-            crate::io::Error::last_os_error()
-        )
+    match Rng::open().and_then(|rng| rng.gen_random_keys()) {
+        Ok(keys) => keys,
+        Err(status) => {
+            panic!("RNG broken: {rng_status:#x}, fallback RNG broken: {status:#x}")
+        }
     }
 }
-
-/// We can't use RtlGenRandom with UWP, so there is no fallback
-#[cfg(target_vendor = "uwp")]
-#[inline(never)]
-fn fallback_rng(rng_status: c::NTSTATUS) -> (u64, u64) {
-    panic!("RNG broken: {rng_status:#x} fallback RNG broken: RtlGenRandom() not supported on UWP");
-}
diff --git a/src/bootstrap/dist.rs b/src/bootstrap/dist.rs
index b7bc96cc86d..563e67a326f 100644
--- a/src/bootstrap/dist.rs
+++ b/src/bootstrap/dist.rs
@@ -1424,7 +1424,7 @@ impl Step for Extended {
 
         let xform = |p: &Path| {
             let mut contents = t!(fs::read_to_string(p));
-            for tool in &["rust-demangler", "rust-analyzer", "rustfmt"] {
+            for tool in &["rust-demangler"] {
                 if !built_tools.contains(tool) {
                     contents = filter(&contents, tool);
                 }
@@ -1465,7 +1465,8 @@ impl Step for Extended {
             prepare("rust-analysis");
             prepare("clippy");
             prepare("miri");
-            for tool in &["rust-docs", "rust-demangler", "rust-analyzer"] {
+            prepare("rust-analyzer");
+            for tool in &["rust-docs", "rust-demangler"] {
                 if built_tools.contains(tool) {
                     prepare(tool);
                 }
@@ -1525,7 +1526,8 @@ impl Step for Extended {
             prepare("rust-std");
             prepare("clippy");
             prepare("miri");
-            for tool in &["rust-demangler", "rust-analyzer"] {
+            prepare("rust-analyzer");
+            for tool in &["rust-demangler"] {
                 if built_tools.contains(tool) {
                     prepare(tool);
                 }
@@ -1609,25 +1611,23 @@ impl Step for Extended {
                     .arg("-out")
                     .arg(exe.join("StdGroup.wxs")),
             );
-            if built_tools.contains("rust-analyzer") {
-                builder.run(
-                    Command::new(&heat)
-                        .current_dir(&exe)
-                        .arg("dir")
-                        .arg("rust-analyzer")
-                        .args(&heat_flags)
-                        .arg("-cg")
-                        .arg("RustAnalyzerGroup")
-                        .arg("-dr")
-                        .arg("RustAnalyzer")
-                        .arg("-var")
-                        .arg("var.RustAnalyzerDir")
-                        .arg("-out")
-                        .arg(exe.join("RustAnalyzerGroup.wxs"))
-                        .arg("-t")
-                        .arg(etc.join("msi/remove-duplicates.xsl")),
-                );
-            }
+            builder.run(
+                Command::new(&heat)
+                    .current_dir(&exe)
+                    .arg("dir")
+                    .arg("rust-analyzer")
+                    .args(&heat_flags)
+                    .arg("-cg")
+                    .arg("RustAnalyzerGroup")
+                    .arg("-dr")
+                    .arg("RustAnalyzer")
+                    .arg("-var")
+                    .arg("var.RustAnalyzerDir")
+                    .arg("-out")
+                    .arg(exe.join("RustAnalyzerGroup.wxs"))
+                    .arg("-t")
+                    .arg(etc.join("msi/remove-duplicates.xsl")),
+            );
             builder.run(
                 Command::new(&heat)
                     .current_dir(&exe)
@@ -2026,6 +2026,7 @@ impl Step for RustDev {
             "llvm-dwp",
             "llvm-nm",
             "llvm-dwarfdump",
+            "llvm-dis",
         ] {
             tarball.add_file(src_bindir.join(exe(bin, target)), "bin", 0o755);
         }
diff --git a/src/bootstrap/download-ci-llvm-stamp b/src/bootstrap/download-ci-llvm-stamp
index 19504a51a58..2e11cf19c3f 100644
--- a/src/bootstrap/download-ci-llvm-stamp
+++ b/src/bootstrap/download-ci-llvm-stamp
@@ -1,4 +1,4 @@
 Change this file to make users of the `download-ci-llvm` configuration download
 a new version of LLVM from CI, even if the LLVM submodule hasn’t changed.
 
-Last change is for: https://github.com/rust-lang/rust/pull/96867
+Last change is for: https://github.com/rust-lang/rust/pull/97550
diff --git a/src/ci/docker/host-x86_64/x86_64-gnu-tools/browser-ui-test.version b/src/ci/docker/host-x86_64/x86_64-gnu-tools/browser-ui-test.version
index 2774f8587f4..142464bf22b 100644
--- a/src/ci/docker/host-x86_64/x86_64-gnu-tools/browser-ui-test.version
+++ b/src/ci/docker/host-x86_64/x86_64-gnu-tools/browser-ui-test.version
@@ -1 +1 @@
-0.10.0
\ No newline at end of file
+0.11.0
\ No newline at end of file
diff --git a/src/doc/rustc/src/SUMMARY.md b/src/doc/rustc/src/SUMMARY.md
index 4fbfd3a4cec..06883ddd58b 100644
--- a/src/doc/rustc/src/SUMMARY.md
+++ b/src/doc/rustc/src/SUMMARY.md
@@ -24,6 +24,7 @@
     - [armv6k-nintendo-3ds](platform-support/armv6k-nintendo-3ds.md)
     - [armv7-unknown-linux-uclibceabi](platform-support/armv7-unknown-linux-uclibceabi.md)
     - [armv7-unknown-linux-uclibceabihf](platform-support/armv7-unknown-linux-uclibceabihf.md)
+    - [\*-android and \*-androideabi](platform-support/android.md)
     - [\*-fuchsia](platform-support/fuchsia.md)
     - [\*-kmc-solid_\*](platform-support/kmc-solid.md)
     - [m68k-unknown-linux-gnu](platform-support/m68k-unknown-linux-gnu.md)
diff --git a/src/doc/rustc/src/command-line-arguments.md b/src/doc/rustc/src/command-line-arguments.md
index f05ff3f1b6b..79cdfb82e41 100644
--- a/src/doc/rustc/src/command-line-arguments.md
+++ b/src/doc/rustc/src/command-line-arguments.md
@@ -270,6 +270,11 @@ This flag will set which lints should be set to the [warn level](lints/levels.md
 
 _Note:_ The order of these lint level arguments is taken into account, see [lint level via compiler flag](lints/levels.md#via-compiler-flag) for more information.
 
+<a id="option-force-warn"></a>
+## `--force-warn`: force a lint to warn
+
+This flag sets the given lint to the [forced warn level](lints/levels.md#force-warn) and the level cannot be overridden, even ignoring the [lint caps](lints/levels.md#capping-lints).
+
 <a id="option-a-allow"></a>
 ## `-A`: set lint allowed
 
@@ -381,6 +386,12 @@ are:
 - `always` — Always use colors.
 - `never` — Never colorize output.
 
+<a id="option-diagnostic-width"></a>
+## `--diagnostic-width`: specify the terminal width for diagnostics
+
+This flag takes a number that specifies the width of the terminal in characters.
+Formatting of diagnostics will take the width into consideration to make them better fit on the screen.
+
 <a id="option-remap-path-prefix"></a>
 ## `--remap-path-prefix`: remap source names in output
 
diff --git a/src/doc/rustc/src/platform-support.md b/src/doc/rustc/src/platform-support.md
index 37b530dcb06..ea2792c218b 100644
--- a/src/doc/rustc/src/platform-support.md
+++ b/src/doc/rustc/src/platform-support.md
@@ -125,17 +125,17 @@ target | std | notes
 `aarch64-apple-ios` | ✓ | ARM64 iOS
 [`aarch64-apple-ios-sim`](platform-support/aarch64-apple-ios-sim.md) | ✓ | Apple iOS Simulator on ARM64
 `aarch64-fuchsia` | ✓ | ARM64 Fuchsia
-`aarch64-linux-android` | ✓ | ARM64 Android
+[`aarch64-linux-android`](platform-support/android.md) | ✓ | ARM64 Android
 `aarch64-unknown-none-softfloat` | * | Bare ARM64, softfloat
 `aarch64-unknown-none` | * | Bare ARM64, hardfloat
-`arm-linux-androideabi` | ✓ | ARMv7 Android
+[`arm-linux-androideabi`](platform-support/android.md) | ✓ | ARMv7 Android
 `arm-unknown-linux-musleabi` | ✓ | ARMv6 Linux with MUSL
 `arm-unknown-linux-musleabihf` | ✓ | ARMv6 Linux with MUSL, hardfloat
 `armebv7r-none-eabi` | * | Bare ARMv7-R, Big Endian
 `armebv7r-none-eabihf` | * | Bare ARMv7-R, Big Endian, hardfloat
 `armv5te-unknown-linux-gnueabi` | ✓ | ARMv5TE Linux (kernel 4.4, glibc 2.23)
 `armv5te-unknown-linux-musleabi` | ✓ | ARMv5TE Linux with MUSL
-`armv7-linux-androideabi` | ✓ | ARMv7a Android
+[`armv7-linux-androideabi`](platform-support/android.md) | ✓ | ARMv7a Android
 `armv7-unknown-linux-gnueabi` | ✓ |ARMv7 Linux (kernel 4.15, glibc 2.27)
 `armv7-unknown-linux-musleabi` | ✓ |ARMv7 Linux with MUSL
 `armv7-unknown-linux-musleabihf` | ✓ | ARMv7 Linux with MUSL, hardfloat
@@ -146,7 +146,7 @@ target | std | notes
 `i586-pc-windows-msvc` | * | 32-bit Windows w/o SSE
 `i586-unknown-linux-gnu` | ✓ | 32-bit Linux w/o SSE (kernel 4.4, glibc 2.23)
 `i586-unknown-linux-musl` | ✓ | 32-bit Linux w/o SSE, MUSL
-`i686-linux-android` | ✓ | 32-bit x86 Android
+[`i686-linux-android`](platform-support/android.md) | ✓ | 32-bit x86 Android
 `i686-unknown-freebsd` | ✓ | 32-bit FreeBSD
 `i686-unknown-linux-musl` | ✓ | 32-bit Linux with MUSL
 `mips-unknown-linux-musl` | ✓ | MIPS Linux with MUSL
@@ -165,7 +165,7 @@ target | std | notes
 `thumbv7em-none-eabi` | * | Bare Cortex-M4, M7
 `thumbv7em-none-eabihf` | * | Bare Cortex-M4F, M7F, FPU, hardfloat
 `thumbv7m-none-eabi` | * | Bare Cortex-M3
-`thumbv7neon-linux-androideabi` | ✓ | Thumb2-mode ARMv7a Android with NEON
+[`thumbv7neon-linux-androideabi`](platform-support/android.md) | ✓ | Thumb2-mode ARMv7a Android with NEON
 `thumbv7neon-unknown-linux-gnueabihf` | ✓ | Thumb2-mode ARMv7a Linux with NEON (kernel 4.4, glibc 2.23)
 `thumbv8m.base-none-eabi` | * | ARMv8-M Baseline
 `thumbv8m.main-none-eabi` | * | ARMv8-M Mainline
@@ -176,7 +176,7 @@ target | std | notes
 `x86_64-apple-ios` | ✓ | 64-bit x86 iOS
 [`x86_64-fortanix-unknown-sgx`](platform-support/x86_64-fortanix-unknown-sgx.md) | ✓ | [Fortanix ABI] for 64-bit Intel SGX
 `x86_64-fuchsia` | ✓ | 64-bit Fuchsia
-`x86_64-linux-android` | ✓ | 64-bit x86 Android
+[`x86_64-linux-android`](platform-support/android.md) | ✓ | 64-bit x86 Android
 `x86_64-pc-solaris` | ✓ | 64-bit Solaris 10/11, illumos
 `x86_64-unknown-linux-gnux32` | ✓ | 64-bit Linux (x32 ABI) (kernel 4.15, glibc 2.27)
 [`x86_64-unknown-none`](platform-support/x86_64-unknown-none.md) | * | Freestanding/bare-metal x86_64, softfloat
diff --git a/src/doc/rustc/src/platform-support/android.md b/src/doc/rustc/src/platform-support/android.md
new file mode 100644
index 00000000000..b2c8e5d4df7
--- /dev/null
+++ b/src/doc/rustc/src/platform-support/android.md
@@ -0,0 +1,45 @@
+# *-linux-android and *-linux-androideabi
+
+**Tier: 2**
+
+[Android] is a mobile operating system built on top of the Linux kernel.
+
+[Android]: https://source.android.com/
+
+## Target maintainers
+
+- Chris Wailes ([@chriswailes](https://github.com/chriswailes))
+- Matthew Maurer ([@maurer](https://github.com/maurer))
+- Martin Geisler ([@mgeisler](https://github.com/mgeisler))
+
+## Requirements
+
+This target is cross-compiled from a host environment. Development may be done
+from the [source tree] or using the Android NDK.
+
+[source tree]: https://source.android.com/docs/setup/build/downloading
+
+Android targets support std. Generated binaries use the ELF file format.
+
+## NDK/API Update Policy
+
+Rust will support the most recent Long Term Support (LTS) Android Native
+Development Kit (NDK).  By default Rust will support all API levels supported
+by the NDK, but a higher minimum API level may be required if deemed necessary.
+
+## Building the target
+
+To build Rust binaries for Android you'll need a copy of the most recent LTS
+edition of the [Android NDK].  Supported Android targets are:
+
+* aarch64-linux-android
+* arm-linux-androideabi
+* armv7-linux-androideabi
+* i686-linux-android
+* thumbv7neon-linux-androideabi
+* x86_64-linux-android
+
+[Android NDK]: https://developer.android.com/ndk/downloads
+
+A list of all supported targets can be found
+[here](https://doc.rust-lang.org/rustc/platform-support.html)
diff --git a/src/librustdoc/html/static/css/rustdoc.css b/src/librustdoc/html/static/css/rustdoc.css
index e17165440d1..593c1c436b8 100644
--- a/src/librustdoc/html/static/css/rustdoc.css
+++ b/src/librustdoc/html/static/css/rustdoc.css
@@ -411,7 +411,7 @@ img {
 
 .sidebar {
 	font-size: 0.875rem;
-	width: 250px;
+	width: 200px;
 	min-width: 200px;
 	overflow-y: scroll;
 	position: sticky;
diff --git a/src/test/rustdoc-gui/check-stab-in-docblock.goml b/src/test/rustdoc-gui/check-stab-in-docblock.goml
index 7f965ada594..afe25195100 100644
--- a/src/test/rustdoc-gui/check-stab-in-docblock.goml
+++ b/src/test/rustdoc-gui/check-stab-in-docblock.goml
@@ -7,15 +7,21 @@ size: (786, 600)
 // Confirms that there 3 paragraphs.
 assert-count: (".top-doc .docblock p", 3)
 // Checking that there is no scrollable content.
+store-property: (clientHeight, ".top-doc .docblock p:nth-of-type(1)", "clientHeight")
+store-property: (clientWidth, ".top-doc .docblock p:nth-of-type(1)", "clientWidth")
 assert-property: (
     ".top-doc .docblock p:nth-of-type(1)",
-    {"scrollHeight": "120", "clientHeight": "120", "scrollWidth": "502", "clientWidth": "502"},
+    {"scrollHeight": |clientHeight|, "scrollWidth": |clientWidth|},
 )
+store-property: (clientHeight, ".top-doc .docblock p:nth-of-type(2)", "clientHeight")
+store-property: (clientWidth, ".top-doc .docblock p:nth-of-type(2)", "clientWidth")
 assert-property: (
     ".top-doc .docblock p:nth-of-type(2)",
-    {"scrollHeight": "48", "clientHeight": "48", "scrollWidth": "502", "clientWidth": "502"},
+    {"scrollHeight": |clientHeight|, "scrollWidth": |clientWidth|},
 )
+store-property: (clientHeight, ".top-doc .docblock p:nth-of-type(3)", "clientHeight")
+store-property: (clientWidth, ".top-doc .docblock p:nth-of-type(3)", "clientWidth")
 assert-property: (
     ".top-doc .docblock p:nth-of-type(3)",
-    {"scrollHeight": "48", "clientHeight": "48", "scrollWidth": "502", "clientWidth": "502"},
+    {"scrollHeight": |clientHeight|, "scrollWidth": |clientWidth|},
 )
diff --git a/src/test/rustdoc-gui/code-blocks-overflow.goml b/src/test/rustdoc-gui/code-blocks-overflow.goml
index f93f3f0aefc..ee4dad444e9 100644
--- a/src/test/rustdoc-gui/code-blocks-overflow.goml
+++ b/src/test/rustdoc-gui/code-blocks-overflow.goml
@@ -5,4 +5,4 @@ size: (1080, 600)
 assert-count: (".docblock > .example-wrap", 2)
 assert: ".docblock > .example-wrap > .language-txt"
 assert: ".docblock > .example-wrap > .rust-example-rendered"
-assert-css: (".docblock > .example-wrap > pre", {"width": "785.25px", "overflow-x": "auto"}, ALL)
+assert-css: (".docblock > .example-wrap > pre", {"width": "796px", "overflow-x": "auto"}, ALL)
diff --git a/src/test/rustdoc-gui/docblock-table-overflow.goml b/src/test/rustdoc-gui/docblock-table-overflow.goml
index 7f97cf220cc..ef0d37c902e 100644
--- a/src/test/rustdoc-gui/docblock-table-overflow.goml
+++ b/src/test/rustdoc-gui/docblock-table-overflow.goml
@@ -4,7 +4,7 @@ goto: file://|DOC_PATH|/lib2/long_table/struct.Foo.html
 size: (1100, 800)
 // Logically, the ".docblock" and the "<p>" should have the same scroll width.
 compare-elements-property: (".top-doc .docblock", ".top-doc .docblock > p", ["scrollWidth"])
-assert-property: (".top-doc .docblock", {"scrollWidth": "801"})
+assert-property: (".top-doc .docblock", {"scrollWidth": "816"})
 // However, since there is overflow in the <table>, its scroll width is bigger.
 assert-property: (".top-doc .docblock table", {"scrollWidth": "1572"})
 
@@ -16,6 +16,6 @@ compare-elements-property: (
     "#implementations-list > details .docblock > p",
     ["scrollWidth"],
 )
-assert-property: ("#implementations-list > details .docblock", {"scrollWidth": "801"})
+assert-property: ("#implementations-list > details .docblock", {"scrollWidth": "816"})
 // However, since there is overflow in the <table>, its scroll width is bigger.
 assert-property: ("#implementations-list > details .docblock table", {"scrollWidth": "1572"})
diff --git a/src/test/rustdoc-gui/item-info-overflow.goml b/src/test/rustdoc-gui/item-info-overflow.goml
index 17478da4fea..bc3addd33dd 100644
--- a/src/test/rustdoc-gui/item-info-overflow.goml
+++ b/src/test/rustdoc-gui/item-info-overflow.goml
@@ -4,7 +4,7 @@ goto: file://|DOC_PATH|/lib2/struct.LongItemInfo.html
 size: (1200, 870)
 // Logically, the "item-decl" and the "item-info" should have the same scroll width.
 compare-elements-property: (".item-decl", ".item-info", ["scrollWidth"])
-assert-property: (".item-info", {"scrollWidth": "890"})
+assert-property: (".item-info", {"scrollWidth": "940"})
 // Just to be sure we're comparing the correct "item-info":
 assert-text: (
     ".item-info",
@@ -21,7 +21,7 @@ compare-elements-property: (
 )
 assert-property: (
     "#impl-SimpleTrait-for-LongItemInfo2 .item-info",
-    {"scrollWidth": "866"},
+    {"scrollWidth": "916"},
 )
 // Just to be sure we're comparing the correct "item-info":
 assert-text: (
diff --git a/src/test/rustdoc-gui/item-info.goml b/src/test/rustdoc-gui/item-info.goml
index 50c45b76bd6..8750d5c5360 100644
--- a/src/test/rustdoc-gui/item-info.goml
+++ b/src/test/rustdoc-gui/item-info.goml
@@ -4,9 +4,9 @@ goto: file://|DOC_PATH|/lib2/struct.Foo.html
 // We set a fixed size so there is no chance of "random" resize.
 size: (1100, 800)
 // We check that ".item-info" is bigger than its content.
-assert-css: (".item-info", {"width": "790px"})
+assert-css: (".item-info", {"width": "840px"})
 assert-css: (".item-info .stab", {"width": "289px"})
-assert-position: (".item-info .stab", {"x": 295})
+assert-position: (".item-info .stab", {"x": 245})
 
 // Now we ensure that they're not rendered on the same line.
 goto: file://|DOC_PATH|/lib2/trait.Trait.html
diff --git a/src/test/rustdoc-gui/notable-trait.goml b/src/test/rustdoc-gui/notable-trait.goml
index 7eb00d825a5..20a129f9d9d 100644
--- a/src/test/rustdoc-gui/notable-trait.goml
+++ b/src/test/rustdoc-gui/notable-trait.goml
@@ -18,11 +18,11 @@ compare-elements-position-false: (
 // The `i` should be *after* the type.
 assert-position: (
     "//*[@id='method.create_an_iterator_from_read']//a[text()='NotableStructWithLongName']",
-    {"x": 692},
+    {"x": 677},
 )
 assert-position: (
     "//*[@id='method.create_an_iterator_from_read']//*[@class='notable-traits']",
-    {"x": 966},
+    {"x": 951},
 )
 
 
diff --git a/src/test/rustdoc-gui/search-result-display.goml b/src/test/rustdoc-gui/search-result-display.goml
index efbbfb925bd..e33693e27ea 100644
--- a/src/test/rustdoc-gui/search-result-display.goml
+++ b/src/test/rustdoc-gui/search-result-display.goml
@@ -7,7 +7,7 @@ press-key: 'Enter'
 wait-for: "#crate-search"
 // The width is returned by "getComputedStyle" which returns the exact number instead of the
 // CSS rule which is "50%"...
-assert-css: (".search-results div.desc", {"width": "293px"})
+assert-css: (".search-results div.desc", {"width": "318px"})
 size: (600, 100)
 // As counter-intuitive as it may seem, in this width, the width is "100%", which is why
 // when computed it's larger.
diff --git a/src/test/rustdoc-gui/sidebar.goml b/src/test/rustdoc-gui/sidebar.goml
index 32fe3334f36..ea7bcc66994 100644
--- a/src/test/rustdoc-gui/sidebar.goml
+++ b/src/test/rustdoc-gui/sidebar.goml
@@ -1,5 +1,6 @@
 // Checks multiple things on the sidebar display (width of its elements, colors, etc).
 goto: file://|DOC_PATH|/test_docs/index.html
+assert-property: (".sidebar", {"clientWidth": "200"})
 show-text: true
 local-storage: {"rustdoc-theme": "light"}
 // We reload the page so the local storage settings are being used.
@@ -39,11 +40,13 @@ assert-property: ("html", {"scrollTop": "0"})
 
 // We now go back to the crate page to click on the "lib2" crate link.
 goto: file://|DOC_PATH|/test_docs/index.html
+assert-property: (".sidebar", {"clientWidth": "200"})
 assert-css: (".sidebar-elems .crate > ul > li:first-child > a", {"color": "rgb(53, 109, 164)"})
 click: ".sidebar-elems .crate > ul > li:first-child > a"
 
 // PAGE: lib2/index.html
 goto: file://|DOC_PATH|/lib2/index.html
+assert-property: (".sidebar", {"clientWidth": "200"})
 assert-text: (".sidebar > .location", "Crate lib2")
 // We check that we have the crates list and that the "current" on is now "lib2".
 assert-text: (".sidebar-elems .crate > ul > li > a.current", "lib2")
@@ -65,11 +68,13 @@ assert-text: (".sidebar .sidebar-elems .location", "In lib2")
 assert-false: ".sidebar-elems > .crate"
 
 goto: ./module/index.html
+assert-property: (".sidebar", {"clientWidth": "200"})
 assert-text: (".sidebar > .location", "Module module")
 // We check that we don't have the crate list.
 assert-false: ".sidebar-elems > .crate"
 
 goto: ./sub_module/sub_sub_module/index.html
+assert-property: (".sidebar", {"clientWidth": "200"})
 assert-text: (".sidebar > .location", "Module sub_sub_module")
 // We check that we don't have the crate list.
 assert-false: ".sidebar-elems .crate"
@@ -78,11 +83,21 @@ assert-text: ("#functions + .item-table .item-left > a", "foo")
 
 // Links to trait implementations in the sidebar should not wrap even if they are long.
 goto: file://|DOC_PATH|/lib2/struct.HasALongTraitWithParams.html
+assert-property: (".sidebar", {"clientWidth": "200"})
 assert-property: (".sidebar-elems section .block li > a", {"offsetHeight": 29})
 
 // Test that clicking on of the "In <module>" headings in the sidebar links to the
 // appropriate anchor in index.html.
 goto: file://|DOC_PATH|/test_docs/struct.Foo.html
+assert-property: (".sidebar", {"clientWidth": "200"})
 click: ".block.mod h3 a"
 // PAGE: index.html
 assert-css: ("#modules", {"background-color": "rgb(253, 255, 211)"})
+
+// Finally, assert that the `[+]/[−]` toggle doesn't affect sidebar width.
+click: "#toggle-all-docs"
+assert-text: ("#toggle-all-docs", "[+]")
+assert-property: (".sidebar", {"clientWidth": "200"})
+click: "#toggle-all-docs"
+assert-text: ("#toggle-all-docs", "[−]")
+assert-property: (".sidebar", {"clientWidth": "200"})
\ No newline at end of file
diff --git a/src/test/rustdoc-gui/type-declation-overflow.goml b/src/test/rustdoc-gui/type-declation-overflow.goml
index 9a46908f933..505874fa010 100644
--- a/src/test/rustdoc-gui/type-declation-overflow.goml
+++ b/src/test/rustdoc-gui/type-declation-overflow.goml
@@ -15,7 +15,7 @@ assert-property: (".item-table .struct", {"offsetWidth": "684"})
 goto: file://|DOC_PATH|/lib2/too_long/type.ReallyLongTypeNameLongLongLong.html
 assert-property: ("body", {"scrollWidth": "1100"})
 // We now check that the section width hasn't grown because of it.
-assert-property: ("#main-content", {"scrollWidth": "825"})
+assert-property: ("#main-content", {"scrollWidth": "840"})
 // And now checking that it has scrollable content.
 assert-property: (".item-decl pre", {"scrollWidth": "1103"})
 
@@ -24,7 +24,7 @@ assert-property: (".item-decl pre", {"scrollWidth": "1103"})
 goto: file://|DOC_PATH|/lib2/too_long/constant.ReallyLongTypeNameLongLongLongConstBecauseWhyNotAConstRightGigaGigaSupraLong.html
 assert-property: ("body", {"scrollWidth": "1100"})
 // We now check that the section width hasn't grown because of it.
-assert-property: ("#main-content", {"scrollWidth": "825"})
+assert-property: ("#main-content", {"scrollWidth": "840"})
 // And now checking that it has scrollable content.
 assert-property: (".item-decl pre", {"scrollWidth": "950"})
 
@@ -32,6 +32,6 @@ assert-property: (".item-decl pre", {"scrollWidth": "950"})
 size: (600, 600)
 goto: file://|DOC_PATH|/lib2/too_long/struct.SuperIncrediblyLongLongLongLongLongLongLongGigaGigaGigaMegaLongLongLongStructName.html
 // It shouldn't have an overflow in the topbar either.
-assert-property: (".mobile-topbar .location", {"scrollWidth": "500"})
-assert-property: (".mobile-topbar .location", {"clientWidth": "500"})
+store-property: (scrollWidth, ".mobile-topbar .location", "scrollWidth")
+assert-property: (".mobile-topbar .location", {"clientWidth": |scrollWidth|})
 assert-css: (".mobile-topbar .location", {"overflow-x": "hidden"})
diff --git a/src/test/ui/command/command-pre-exec.rs b/src/test/ui/command/command-pre-exec.rs
index 61914e22930..d366c5ffbfd 100644
--- a/src/test/ui/command/command-pre-exec.rs
+++ b/src/test/ui/command/command-pre-exec.rs
@@ -6,6 +6,7 @@
 // ignore-windows - this is a unix-specific test
 // ignore-emscripten no processes
 // ignore-sgx no processes
+// ignore-fuchsia no execvp syscall
 #![feature(process_exec, rustc_private)]
 
 extern crate libc;
diff --git a/src/test/ui/command/command-uid-gid.rs b/src/test/ui/command/command-uid-gid.rs
index e1eb4b1405b..aa4e2f5b893 100644
--- a/src/test/ui/command/command-uid-gid.rs
+++ b/src/test/ui/command/command-uid-gid.rs
@@ -2,6 +2,7 @@
 // ignore-android
 // ignore-emscripten
 // ignore-sgx
+// ignore-fuchsia no '/bin/sh', '/bin/ls'
 
 #![feature(rustc_private)]
 
diff --git a/src/test/ui/impl-trait/in-trait/issue-102140.rs b/src/test/ui/impl-trait/in-trait/issue-102140.rs
new file mode 100644
index 00000000000..be1e012acb1
--- /dev/null
+++ b/src/test/ui/impl-trait/in-trait/issue-102140.rs
@@ -0,0 +1,30 @@
+#![feature(return_position_impl_trait_in_trait)]
+#![allow(incomplete_features)]
+
+trait Marker {}
+impl Marker for u32 {}
+
+trait MyTrait {
+    fn foo(&self) -> impl Marker
+    where
+        Self: Sized;
+}
+
+struct Outer;
+
+impl MyTrait for Outer {
+    fn foo(&self) -> impl Marker {
+        42
+    }
+}
+
+impl dyn MyTrait {
+    fn other(&self) -> impl Marker {
+        MyTrait::foo(&self)
+        //~^ ERROR the trait bound `&dyn MyTrait: MyTrait` is not satisfied
+        //~| ERROR the trait bound `&dyn MyTrait: MyTrait` is not satisfied
+        //~| ERROR the trait bound `&dyn MyTrait: MyTrait` is not satisfied
+    }
+}
+
+fn main() {}
diff --git a/src/test/ui/impl-trait/in-trait/issue-102140.stderr b/src/test/ui/impl-trait/in-trait/issue-102140.stderr
new file mode 100644
index 00000000000..08602185f50
--- /dev/null
+++ b/src/test/ui/impl-trait/in-trait/issue-102140.stderr
@@ -0,0 +1,29 @@
+error[E0277]: the trait bound `&dyn MyTrait: MyTrait` is not satisfied
+  --> $DIR/issue-102140.rs:23:22
+   |
+LL |         MyTrait::foo(&self)
+   |         ------------ -^^^^
+   |         |            |
+   |         |            the trait `MyTrait` is not implemented for `&dyn MyTrait`
+   |         |            help: consider removing the leading `&`-reference
+   |         required by a bound introduced by this call
+
+error[E0277]: the trait bound `&dyn MyTrait: MyTrait` is not satisfied
+  --> $DIR/issue-102140.rs:23:9
+   |
+LL |         MyTrait::foo(&self)
+   |         ^^^^^^^^^^^^^^^^^^^ the trait `MyTrait` is not implemented for `&dyn MyTrait`
+   |
+   = help: the trait `MyTrait` is implemented for `Outer`
+
+error[E0277]: the trait bound `&dyn MyTrait: MyTrait` is not satisfied
+  --> $DIR/issue-102140.rs:23:9
+   |
+LL |         MyTrait::foo(&self)
+   |         ^^^^^^^^^^^^ the trait `MyTrait` is not implemented for `&dyn MyTrait`
+   |
+   = help: the trait `MyTrait` is implemented for `Outer`
+
+error: aborting due to 3 previous errors
+
+For more information about this error, try `rustc --explain E0277`.