Top rust issues

re-land #62150 (Implement mem::{zeroed,uninitialized} in terms of MaybeUninit)

T-lang

Undefined symbol _fltused when compiling to x86_64-unknown-uefi

A-linkage C-bug E-needs-bisection O-x86_64 P-high T-compiler regression-from-stable-to-beta

CString::into_raw() trigger miri

A-ffi A-miri

`core::arch::x86_64::_mm_shuffle_ps` input doesn't match official docs

A-intrinsics E-easy T-compiler T-doc T-libs

Add a way to signal that a snippet is UB/bad in rustdoc

C-enhancement C-feature-request T-rustdoc

allow(deprecated) is too coarse-grained, should take a path

A-attributes A-frontend A-lint C-feature-request T-lang needs-rfc

library compilation problem on s390x

A-LLVM C-bug O-SystemZ T-compiler

wart: non-Eq [T; 0] can be matched as if T were `#[structural_match]`

A-patterns T-lang

Miri/CTFE discriminant computation happens at the wrong type

A-const-eval A-miri C-bug T-compiler

E0373 help suggests `move async` but the correct syntax is `async move`

A-async-await A-diagnostics A-suggestion-diagnostics AsyncAwait-Triaged C-bug F-async_closures requires-nightly