25 Pull requests merged by 20 people

• Update to LLVM 20.1.5

  #141063 merged May 18, 2025

• move expensive layout sanity check to debug assertions

  #141039 merged May 18, 2025

• Merge mir query analysis invocations

  #140856 merged May 18, 2025

• Initial implementation of core_float_math

  #138087 merged May 17, 2025

• Implement Display for rustc_target::callconv::Conv

  #135808 merged May 17, 2025

• Rollup of 9 pull requests

  #141133 merged May 17, 2025

• deduplicate abort implementations

  #139103 merged May 17, 2025

• checktools.sh: fix bashism

  #140917 merged May 17, 2025

• Make some matches slightly more ergonomic in librustdoc

  #141131 merged May 17, 2025

• check coroutines with TypingMode::Borrowck to avoid cyclic reasoning

  #141125 merged May 17, 2025

• Only select true errors in impossible_predicates

  #141121 merged May 17, 2025

• turn lld warning on old gccs into info log

  #141035 merged May 17, 2025

• Enable rust-analyzer to go from query definition to the corresponding provider field

  #141118 merged May 17, 2025

• Add as_ascii_unchecked() methods to char, u8, and str

  #137432 merged May 17, 2025

• Miri subtree update

  #141116 merged May 17, 2025

• Rollup of 8 pull requests

  #141113 merged May 17, 2025

• Do not emit help when shorthand from macro when suggest ? or expect

  #141070 merged May 17, 2025

• HIR: explain in comment why ExprKind::If "then" is an Expr

  #141059 merged May 17, 2025

• Lowercase git url for rust-lang/enzyme.git

  #141056 merged May 17, 2025

• Remove some unnecessary erases

  #141051 merged May 17, 2025

• ci: split the dist-ohos job

  #141036 merged May 17, 2025

• Async drop fix for dropee from another crate (#140858)

  #141031 merged May 17, 2025

• Add #[must_use] to Array::map

  #140957 merged May 17, 2025

• Make well-formedness predicates no longer coinductive

  #140208 merged May 17, 2025

• Revert "Fix linking statics on Arm64EC #140176"

  #141024 merged May 17, 2025

18 Pull requests opened by 11 people

• opt-dist: fix deprecated BOLT -icf=1 option

  #141117 opened May 17, 2025

• rustdoc JSON: Don't apply `#[repr]` privacy heuristics

  #141126 opened May 17, 2025

• bump windows crate for compiler,bootstrap and tools

  #141127 opened May 17, 2025

• Fast path for processing some obligations in the new solver

  #141128 opened May 17, 2025

• Fast path for `register_region_obligation`

  #141129 opened May 17, 2025

• rustc_on_unimplemented cleanups

  #141130 opened May 17, 2025

• Use `crate::` prefix for root macro suggestions

  #141132 opened May 17, 2025

• Fast path for processing some obligations in the new solver (volume 2)

  #141135 opened May 17, 2025

• Stabilize `#[cfg(version(...))]`

  #141137 opened May 17, 2025

• Fix Rust for Linux ping group label

  #141139 opened May 17, 2025

• refactor `AttributeGate` and `rustc_attr!` to emit notes during feature checking

  #141162 opened May 17, 2025

• Weekly `cargo update`

  #141205 opened May 18, 2025

• tools-aux ci runner: also cross-test doctests in Miri

  #141210 opened May 18, 2025

• Replace `try_reserve_exact` with `try_with_capacity` in `std::fs::read`

  #141211 opened May 18, 2025

• Suggest use "{}", self.x instead of {self.x} when resolve x as field of `self`

  #141213 opened May 18, 2025

• Miri subtree update

  #141214 opened May 18, 2025

• std: clarify Clone trait documentation about duplication semantics

  #141215 opened May 18, 2025

• Rollup of 8 pull requests

  #141216 opened May 18, 2025

7 Issues closed by 3 people

• Segfault due to `impossible_predicates` treating ambiguous obligation as impossible

  #141119 closed May 17, 2025

• poor diagnostic for unsupported -fuse-ld=lld flag

  #140964 closed May 17, 2025

• Decide on name for `Freeze`

  #131401 closed May 17, 2025

• Inconsistent rustc inference

  #141103 closed May 17, 2025

• Malformed suggestion for E0308 when macros are involved

  #140659 closed May 17, 2025

• when dependency enable async_drop feature, it cause ICE

  #140858 closed May 17, 2025

• ICE: `asked to assemble builtin bounds of unexpected type: FreshTy(0)`

  #123456 closed May 17, 2025

13 Issues opened by 11 people

• EarlyOtherwiseBranch can insert storage markers incorrectly, creating use of a dead local

  #141212 opened May 18, 2025

• Tracking issue for release notes of #137306: Remove `i128` and `u128` from `improper_ctypes_definitions`

  #141206 opened May 18, 2025

• Inlining leaves extra assembly

  #141144 opened May 17, 2025

• ICE: name of non-Rpitit assoc item

  #141143 opened May 17, 2025

• #[derive(PartialEq)] does not reorder field comparisons to improve performance

  #141141 opened May 17, 2025

• Tracking issue for release notes of #137323: Guarantee behavior of transmuting `Option::<T>::None` subject to NPO

  #141140 opened May 17, 2025

• `Clone` documentation can be confusing to beginners around "duplication" language

  #141138 opened May 17, 2025

• Add `self.` on `format!()` macro failed

  #141136 opened May 17, 2025

• Nested import suggestion should maintain the same visibility level

  #141134 opened May 17, 2025

• ICE: `overflow evaluating the requirement` / `impl was matchable against binder but now it is not`

  #141124 opened May 17, 2025

• Document builtin attributes (like `no_mangle`, `repr`, ...) in the standard library docs

  #141123 opened May 17, 2025

• CopyProp doesn't always respect Tree Borrows

  #141122 opened May 17, 2025

• FTBFS tarball rust 1.87.0: could not find native static library

  #141120 opened May 17, 2025

78 Unresolved conversations

Sometimes conversations happen on old items that aren’t yet closed. Here is a list of all the Issues and Pull Requests with unresolved conversations.

• additional edge cases tests for `path.rs` 🧪

  #141105 commented on May 17, 2025 • 2 new comments

• add regression test for rust-lang#101650

  #141094 commented on May 17, 2025 • 2 new comments

• Enable [behind-upstream] triagebot option for rust-lang/rust

  #141071 commented on May 17, 2025 • 2 new comments

• rustdoc: hide `#[repr]` if it isn't part of the public ABI

  #116882 commented on May 17, 2025 • 2 new comments

• Improve doc of some methods that take ranges

  #140983 commented on May 17, 2025 • 2 new comments

• Fix unuseful span in type error in some format_args!() invocations

  #140916 commented on May 18, 2025 • 2 new comments

• Change the desugaring of `assert!` for better error output

  #122661 commented on May 18, 2025 • 1 new comment

• ci: split powerpc64le-linux job

  #141042 commented on May 18, 2025 • 1 new comment

• split `asm!` parsing and validation

  #140490 commented on May 18, 2025 • 0 new comments

• implement continue_ok and break_ok for ControlFlow

  #140267 commented on May 17, 2025 • 0 new comments

• Allow while let chains on all editions

  #140204 commented on May 17, 2025 • 0 new comments

• Add per page TOC in the `rustc` book

  #140113 commented on May 17, 2025 • 0 new comments

• make std::intrinsics functions actually be intrinsics

  #139916 commented on May 18, 2025 • 0 new comments

• [WIP] mgca: Add ConstArg representation for const items

  #139558 commented on May 17, 2025 • 0 new comments

• Fallback `{float}` to `f32` when `f32: From<{float}>` and add `impl From<f16> for f32`

  #139087 commented on May 18, 2025 • 0 new comments

• Stabilize the avx512 target features

  #138940 commented on May 18, 2025 • 0 new comments

• Add a new `mismatched-lifetime-syntaxes` lint

  #138677 commented on May 17, 2025 • 0 new comments

• Guarantee behavior of transmuting `Option::<T>::None` subject to NPO

  #137323 commented on May 17, 2025 • 0 new comments

• Remove `i128` and `u128` from `improper_ctypes_definitions`

  #137306 commented on May 18, 2025 • 0 new comments

• Check preds post mono (round 2)

  #137003 commented on May 17, 2025 • 0 new comments

• Add checking for unnecessary delims in closure body

  #136906 commented on May 17, 2025 • 0 new comments

• Arbitrary self types v2: stabilize

  #135881 commented on May 17, 2025 • 0 new comments

• Infer nounwind and use it in MIR opts

  #130909 commented on May 18, 2025 • 0 new comments

• ci: split dist-arm-linux job

  #141078 commented on May 18, 2025 • 0 new comments

• Rollup of 14 pull requests

  #141067 commented on May 17, 2025 • 0 new comments

• [win][arm64] Remove 'Arm64 Hazard' undocumented MSVC option and instead disable problematic test

  #141045 commented on May 18, 2025 • 0 new comments

• Permit duplicate macro imports

  #141043 commented on May 17, 2025 • 0 new comments

• avoid violating `slice::from_raw_parts` safety contract in `Vec::extract_if`

  #141032 commented on May 17, 2025 • 0 new comments

• replace `cc_detect::cc2ar` with `cc::try_get_archiver`

  #140994 commented on May 18, 2025 • 0 new comments

• Async drop poll shim for error dropee generates noop body

  #140967 commented on May 18, 2025 • 0 new comments

• Remove #![feature(let_chains)] from library and src/librustdoc

  #140966 commented on May 17, 2025 • 0 new comments

• Use `Arena::alloc_from_iter` to avoid redundant vec allocations

  #140937 commented on May 18, 2025 • 0 new comments

• Make some `f32`/`f64` tests also run in const-context

  #140924 commented on May 17, 2025 • 0 new comments

• make `rustc_attr_parsing` less dominant in the rustc crate graph

  #140874 commented on May 18, 2025 • 0 new comments

• Reduce special casing for the panic runtime

  #140809 commented on May 17, 2025 • 0 new comments

• add `extern "custom"` functions

  #140770 commented on May 17, 2025 • 0 new comments

• Stabilize keylocker

  #140766 commented on May 18, 2025 • 0 new comments

• Split `autodiff` into `autodiff_forward` and `autodiff_reverse`

  #140697 commented on May 17, 2025 • 0 new comments

• Use lld by default on `x86_64-unknown-linux-gnu` stable

  #140525 commented on May 17, 2025 • 0 new comments

• Stabilize `#![feature(non_null_from_ref)]`

  #140511 commented on May 18, 2025 • 0 new comments

• Misleading description of range in split_off() and split_off_mut()

  #141107 commented on May 17, 2025 • 0 new comments

• rustdoc: toggle to show private items in rustdoc

  #141114 commented on May 17, 2025 • 0 new comments

• "Unreachable definition" warning after infallible expression in `if`-block

  #111370 commented on May 17, 2025 • 0 new comments

• False-positive with the unreachable code lint

  #88393 commented on May 17, 2025 • 0 new comments

• Tracking Issue for `f16` and `f128` float types

  #116909 commented on May 17, 2025 • 0 new comments

• Can’t run binaries with debuginfo created by `x86_64-pc-windows-gnu` compiler

  #141096 commented on May 17, 2025 • 0 new comments

• Tracking Issue for `Hasher::{write_str, write_length_prefix}` (`feature(hasher_prefixfree_extras)`)

  #96762 commented on May 17, 2025 • 0 new comments

• Tracking Issue for `-Zembed-metadata=[no|yes]`

  #139165 commented on May 17, 2025 • 0 new comments

• s390x vector facilities support

  #130869 commented on May 17, 2025 • 0 new comments

• concurrent `Step` mechanism

  #141073 commented on May 17, 2025 • 0 new comments

• Decide on path forward for attributes on expressions

  #127436 commented on May 17, 2025 • 0 new comments

• Tracking Issue for `extern_system_varargs`

  #136946 commented on May 17, 2025 • 0 new comments

• SIGILL in rustc compiling normal library crate on x86_64

  #141099 commented on May 17, 2025 • 0 new comments

• Tracking issue for RFC 2523, `#[cfg(version(..))]`

  #64796 commented on May 17, 2025 • 0 new comments

• Tracking issue: deref patterns

  #87121 commented on May 17, 2025 • 0 new comments

• Tracking issue for release notes of #140957: Add `#[must_use]` to Array::map

  #141075 commented on May 17, 2025 • 0 new comments

• Tracking issue for release notes of #140208: Make well-formedness predicates no longer coinductive

  #141046 commented on May 17, 2025 • 0 new comments

• nightly: Linker error / `wasm-bindgen` pulling in `env` library in generated JS

  #141085 commented on May 17, 2025 • 0 new comments

• Tracking Issue for AVX512_FP16 intrinsics

  #127213 commented on May 17, 2025 • 0 new comments

• Add `f16` formatting and parsing

  #127013 commented on May 17, 2025 • 0 new comments

• test

  #124078 commented on May 17, 2025 • 0 new comments

• sanitizers: Stabilize AddressSanitizer and LeakSanitizer for the Tier 1 targets

  #123617 commented on May 17, 2025 • 0 new comments

• Stabilize associated type position impl Trait (ATPIT)

  #120700 commented on May 17, 2025 • 0 new comments

• Implement `PartialOrd` and `Ord` for `Discriminant`

  #106418 commented on May 17, 2025 • 0 new comments

• Tracking Issue for float_minimum_maximum

  #91079 commented on May 18, 2025 • 0 new comments

• GVN misunderstands aliasing, can create overlapping assignments

  #141038 commented on May 18, 2025 • 0 new comments

• impl block on a type defined with type_alias_impl_trait can conflict with other unrelated impl

  #139583 commented on May 18, 2025 • 0 new comments

• Associated Type Equality Bounds are not properly resolved

  #139682 commented on May 18, 2025 • 0 new comments

• "the trait bound is not satisfied" when using traits from associated type

  #138119 commented on May 18, 2025 • 0 new comments

• Incorrect trait bound handling for `IntoIterator<IntoIter = I, Item = T>`

  #137185 commented on May 18, 2025 • 0 new comments

• Associated Type Equality Constraints Drop Trait Bounds

  #109845 commented on May 18, 2025 • 0 new comments

• Type equality bounds disable implied projection outlives bounds

  #141054 commented on May 18, 2025 • 0 new comments

• Too conservative lifetime check in match arm with if condition.

  #137878 commented on May 18, 2025 • 0 new comments

• `fn_cast!` macro

  #140803 commented on May 18, 2025 • 0 new comments

• rustdoc: `cargo deadlinks` reveals invalid fragments in links generated by rustdoc

  #141115 commented on May 18, 2025 • 0 new comments

• Attempting to store function callback of a particular incorrect type produces ICE

  #140823 commented on May 18, 2025 • 0 new comments

• Incremental compilation fails when a generic function uses a private symbol

  #53929 commented on May 18, 2025 • 0 new comments

• Assertion error on arm-unknown-linux-gnueabihf for maximum/minimum float

  #141087 commented on May 17, 2025 • 0 new comments