1 Release published by 1 person

• 1.87.0 Rust 1.87.0

  published May 15, 2025

88 Pull requests merged by 54 people

• 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

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

  #141118 merged May 17, 2025

• Only select true errors in impossible_predicates

  #141121 merged May 17, 2025

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

  #141125 merged May 17, 2025

• turn lld warning on old gccs into info log

  #141035 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

• deduplicate abort implementations

  #139103 merged May 17, 2025

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

  #137432 merged May 17, 2025

• Rollup of 9 pull requests

  #141133 merged May 17, 2025

• Miri subtree update

  #141116 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

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

  #141059 merged May 17, 2025

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

  #141070 merged May 17, 2025

• Rollup of 8 pull requests

  #141113 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

• Subtree update GCC backend 2025 05 14

  #141002 merged May 17, 2025

• trait_sel: deep reject match_normalize_trait_ref

  #140978 merged May 17, 2025

• Weekly cargo update

  #140911 merged May 16, 2025

• Update cargo

  #141093 merged May 16, 2025

• Invoke a query only when it doesn't return immediately anyway

  #140959 merged May 16, 2025

• Clippy subtree update

  #141044 merged May 16, 2025

• fix doc for UnixStream

  #140984 merged May 16, 2025

• Add negative test coverage for -Clink-self-contained and -Zlinker-features

  #140997 merged May 16, 2025

• Migrate to modern datetime API

  #141009 merged May 16, 2025

• Implement methods to set STARTUPINFO flags for Command API on Windows

  #141013 merged May 16, 2025

• rustc-dev-guide subtree update

  #141026 merged May 16, 2025

• std: explain prefer TryInto over TryFrom when specifying traits bounds on generic function

  #140791 merged May 16, 2025

• Remove stable attribute from wasi fs (read_exact|write_all)_at

  #140910 merged May 16, 2025

• Improve ternary operator recovery

  #141003 merged May 16, 2025

• move (or remove) some impl Trait tests

  #140834 merged May 16, 2025

• Rollup of 9 pull requests

  #141066 merged May 16, 2025

• Remove manual WF hack

  #140557 merged May 16, 2025

• VxWorks: updates from recent libc versions

  #140990 merged May 16, 2025

• docs(library/core/src/pin): fix typo "necessarily" -> "necessary"

  #139749 merged May 16, 2025

• Rollup of 7 pull requests

  #141050 merged May 16, 2025

• Flush errors before deep normalize in dropck_outlives

  #140947 merged May 16, 2025

• Simplify Vec::as_non_null implementation and make it const

  #140685 merged May 16, 2025

• normalization: avoid incompletely constraining GAT args

  #140712 merged May 16, 2025

• remove RustfmtState to reduce initial_rustfmt complexity

  #141027 merged May 16, 2025

• Improve dangerous_implicit_aurorefs diagnostic output

  #140768 merged May 16, 2025

• Optimize ToString implementation for integers

  #136264 merged May 15, 2025

• Use the new solver in the impossible_predicates

  #136988 merged May 15, 2025

• Fix a compiletest blessing message

  #140953 merged May 15, 2025

• MaybeUninit::write: fix doc

  #140988 merged May 15, 2025

• Do not ICE when reassigning in GatherLocalsVisitor on the bad path

  #140827 merged May 15, 2025

• Add an issue template for future-incompatible lints

  #140904 merged May 15, 2025

• Rollup of 7 pull requests

  #141011 merged May 15, 2025

• Update rustix to 1.0.7 for bootstrap

  #140973 merged May 15, 2025

• Add Ipv4Addr and Ipv6Addr diagnostic items

  #140976 merged May 15, 2025

• Suggest replace f with f: Box<f> when expr field is short hand

  #140989 merged May 15, 2025

• Temporarily use Windows Server 2022 instead of Windows Server 2025 images

  #141023 merged May 15, 2025

• Update ctrlc, libloading and nix for rustc

  #140921 merged May 13, 2025

• Stage0 bootstrap update

  #140887 merged May 13, 2025

• Do not remove super keyword from super let

  #140951 merged May 13, 2025

• Fix typos

  #140935 merged May 13, 2025

• chore: move more ui tests

  #140927 merged May 13, 2025

• Use new form for T-rustdoc's {beta,stable}-{nominated,accepted} notify-Zulip triggers

  #140909 merged May 13, 2025

• cg_llvm: Clean up some inline assembly bindings

  #140914 merged May 12, 2025

• ui/async-drop-initial: factor in panic strategy in destructor size check

  #140941 merged May 12, 2025

• Silence warning in default compiler bootstrap settings

  #140934 merged May 12, 2025

• add regression test for 140207

  #140925 merged May 12, 2025

• cg_llvm: Rename OperandBundleOwned to OperandBundleBox

  #140923 merged May 12, 2025

• Remove mono item collection strategy override from -Zprint-mono-items

  #140842 merged May 12, 2025

• Update miniz_oxide dependency of coverage_dump

  #140899 merged May 11, 2025

• Enable non-leaf Frame Pointers for Arm64EC Windows

  #140862 merged May 11, 2025

• Warn when #[export_name] is used with generic functions

  #140851 merged May 11, 2025

• Add T-compiler backports Zulip notifications

  #140397 merged May 11, 2025

• Rollup of 3 pull requests

  #140915 merged May 11, 2025

• Backport #140902 to beta

  #140918 merged May 11, 2025

• Async drop fix for async_drop_in_place<T> layout for unspecified T

  #140902 merged May 11, 2025

• Partially stabilize LoongArch target features

  #135015 merged May 11, 2025

• Rollup of 7 pull requests

  #140912 merged May 11, 2025

• test intrinsic fallback bodies with Miri

  #140903 merged May 11, 2025

• Update deps of bootstrap for Cygwin

  #140886 merged May 11, 2025

• Split duration_constructors to get non-controversial constructors out

  #140882 merged May 11, 2025

• Two expand-related cleanups

  #140878 merged May 11, 2025

• Make t letter looks like lowercase rather than uppercase

  #140865 merged May 11, 2025

• Prefer to suggest stable candidates rather than unstable ones

  #140795 merged May 11, 2025

• Use intrinsics for {f16,f32,f64,f128}::{minimum,maximum} operations

  #140792 merged May 11, 2025

• [beta-1.88] Update cargo

  #140897 merged May 11, 2025

72 Pull requests opened by 46 people

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

  #140916 opened May 11, 2025

• Extract some shared code from codegen backend target feature handling

  #140920 opened May 11, 2025

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

  #140924 opened May 11, 2025

• Return value of coroutine_layout fn changed to Result with LayoutError

  #140926 opened May 11, 2025

• update llvm-tools logic for `dist` and `install` steps

  #140932 opened May 12, 2025

• Clarify WTF-8 safety docs

  #140936 opened May 12, 2025

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

  #140937 opened May 12, 2025

• Changed unclickable link in The rustc book

  #140938 opened May 12, 2025

• const-eval: allow constants to refer to mutable/external memory, but reject such constants as patterns

  #140942 opened May 12, 2025

• start properly testing attributes in positions

  #140948 opened May 12, 2025

• More option optimization tests

  #140950 opened May 12, 2025

• Specify that split_ascii_whitespace uses the same definition as is_ascii_whitespace

  #140952 opened May 12, 2025

• `impl PartialEq<{str,String}> for {Path,PathBuf}`

  #140956 opened May 13, 2025

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

  #140966 opened May 13, 2025

• Async drop poll shim for error dropee generates noop body

  #140967 opened May 13, 2025

• Allow initializing logger with additional tracing Layer

  #140969 opened May 13, 2025

• Add TRACING_ENABLED to Machine and add enter_trace_span!()

  #140972 opened May 13, 2025

• Add match guard let chain drop order and scoping tests

  #140981 opened May 13, 2025

• Implement `ptr::is_aligned_for` and `NonNull::is_aligned_for`.

  #140982 opened May 13, 2025

• Improve doc of some methods that take ranges

  #140983 opened May 13, 2025

• Change `core::iter::Fuse`'s `Default` impl to do what its docs say it does

  #140985 opened May 14, 2025

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

  #140994 opened May 14, 2025

• literal-escaper v0.0.2 => v0.0.3 for better API without `unreachable`

  #140999 opened May 14, 2025

• rustdoc: Also run lint unused_doc_comments

  #141000 opened May 14, 2025

• Make NonZero<char> possible

  #141001 opened May 14, 2025

• Report text_direction_codepoint_in_literal when parsing

  #141004 opened May 14, 2025

• Expand free alias types when computing implied outlives-bounds

  #141007 opened May 14, 2025

• Update std doctests for android

  #141019 opened May 15, 2025

• Lexer: check in `advance_token` to avoid regard spare `##` as `GardedStrPrefix`

  #141028 opened May 15, 2025

• Consistently type stabilized in the release notes

  #141029 opened May 15, 2025

• [WIP] Expand free alias types during variance computation

  #141030 opened May 15, 2025

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

  #141032 opened May 15, 2025

• compiletest: add option for automatically adding annotations

  #141033 opened May 15, 2025

• move expensive layout sanity check to debug assertions

  #141039 opened May 15, 2025

• ci: split powerpc64le-linux job

  #141042 opened May 15, 2025

• Permit duplicate macro imports

  #141043 opened May 15, 2025

• [win][arm64] Remove 'Arm64 Hazard' undocumented MSVC option and inste…

  #141045 opened May 15, 2025

• Hack together inline-always-overrides

  #141055 opened May 15, 2025

• Don't do expensive HIR walk to collect nested bodies

  #141057 opened May 15, 2025

• Fix glob import tests

  #141060 opened May 15, 2025

• Change __rust_no_alloc_shim_is_unstable to be a function

  #141061 opened May 15, 2025

• Update IDEs to use rustfmt 2024, fix Zed settings

  #141062 opened May 16, 2025

• Update to LLVM 20.1.5

  #141063 opened May 16, 2025

• Updated std doctests for wasm

  #141065 opened May 16, 2025

• Rollup of 14 pull requests

  #141067 opened May 16, 2025

• Provide slice length information to the compiler

  #141068 opened May 16, 2025

• Suggest mut when possbile for temporary value dropped while borrowed

  #141069 opened May 16, 2025

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

  #141071 opened May 16, 2025

• Stabilize feature `result_flattening`

  #141072 opened May 16, 2025

• fix Zip unsoundness (again)

  #141076 opened May 16, 2025

• Fix the issue of typo of comma in arm parsing

  #141077 opened May 16, 2025

• ci: split dist-arm-linux job

  #141078 opened May 16, 2025

• Implement `advance_by` via `try_fold` for `Sized` iterators

  #141086 opened May 16, 2025

• add regression test for rust-lang#101650

  #141094 opened May 16, 2025

• Test(fs): Fix test_eq_windows_file_type for Windows 7

  #141104 opened May 16, 2025

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

  #141105 opened May 16, 2025

• Docs(lib): Fix `extract_if` docs

  #141108 opened May 17, 2025

• discuss deadlocks in the std::io::pipe() example

  #141109 opened May 17, 2025

• [std] fix the presentation of `split_off_mut` and `split_off` documentation

  #141110 opened May 17, 2025

• std: note that `std::str::from_utf8*` functions are aliases to `std::<str>::from_utf8*` methods

  #141112 opened May 17, 2025

• 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

41 Issues closed by 21 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

• `wasm-opt` fails on 1.87 with "Bulk memory operations require bulk memory"

  #141080 closed May 17, 2025

• Reference to ZST occupies slot in function calling convention

  #141049 closed May 16, 2025

• TryFrom and TryInto docs don't say that TryInto should be preferred in bounds.

  #140761 closed May 16, 2025

• wasm32-unknown-unknown changes broke builds that assumed less features

  #141048 closed May 16, 2025

• Non-implemented trait causes ICE

  #140462 closed May 16, 2025

• ICE when building rustc_middle with some query-related trait bounds not satisfied

  #140931 closed May 16, 2025

• Scrutinee dropped after if-let body

  #133677 closed May 15, 2025

• incompletely relating alias args is unsound during vtable creation

  #140212 closed May 15, 2025

• Rust unable to compare two numbers in --release mode (miscompile?)

  #141021 closed May 15, 2025

• `Box::new` recommended in struct initialization identifier position

  #139631 closed May 15, 2025

• compiletest "Blessing the {stream} of {test_name} in {expected_path:?}" test name is incorrect

  #140945 closed May 15, 2025

• ICE: gather_locals

  #140730 closed May 15, 2025

• Offer a suggested fix for structs with a single field

  #138931 closed May 15, 2025

• Type confusion when interacting with HashMap both via Borrow and directly

  #141008 closed May 15, 2025

• Unnecessary locking in pthread mutex drop?

  #141020 closed May 15, 2025

• Invalid syntax suggested when missing lifetime coincides with const generic

  #87853 closed May 14, 2025

• doctests are not run when specifying a target

  #140996 closed May 14, 2025

• Coherence and blanket impls interact in a suboptimal fashion with generic impls

  #19032 closed May 14, 2025

• ICE (on stable and nightly): repr(packed) + enum + Box + builtin derive macro

  #140749 closed May 14, 2025

• Trait with type-dependent optional function forces implementation regardless of type

  #110219 closed May 14, 2025

• Nightly compiler complains about a disabled nightly feature used in an impl block, but the block is cfg-gated by a disabled feature

  #140960 closed May 14, 2025

• Reference correction - Panic Implementation - core definition of panic

  #140970 closed May 14, 2025

• ACP `ptr::is_aligned_for::<T>()`

  #140979 closed May 13, 2025

• Semantics of control flow operators (return, continue, `?`) in async blocks is severely underdocumented

  #101444 closed May 13, 2025

• STATUS_ACCESS_VIOLATION happens frequently with rust 1.83 under windows x64 environment

  #134119 closed May 13, 2025

• Usage of curly braces in ARM assembly considered invalid

  #140963 closed May 13, 2025

• Non pub functions are exported as DLL symbols

  #133437 closed May 12, 2025

• UI test async-drop-initial now fails size assertion on `aarch64-unknown-none`

  #140939 closed May 12, 2025

• async-drop-initial.rs test failing on Fuchsia

  #140493 closed May 12, 2025

• Incorrect detection of proc-macro crate type

  #140929 closed May 12, 2025

• Default compiler bootstrap config causes a warning to be shown

  #140928 closed May 12, 2025

• Cannot pass flags to bootstrap links after #133092

  #136984 closed May 11, 2025

• Warn when #[export_name] is used with generic functions

  #140742 closed May 11, 2025

• rustc does not suggest importing the old `Range` type

  #140240 closed May 11, 2025

73 Issues opened by 51 people

• 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

• Is it safe to `impl Clone` for `Arc`/`Rc` of `Mutex`/`RwLock` ?

  #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

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

  #141115 opened May 17, 2025

• rustdoc: toggle to show private items in rustdoc

  #141114 opened May 17, 2025

• Trait unexpectedly not implemented with recursive where clause, with poor error message

  #141111 opened May 17, 2025

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

  #141107 opened May 17, 2025

• `is_x86_feature_detected` source link in std docs is broken

  #141102 opened May 16, 2025

• ReferencePropagation miscompile that reads uninitialized memory

  #141101 opened May 16, 2025

• SIGILL in rustc compiling normal library crate on x86_64

  #141099 opened May 16, 2025

• Tracking issue for release notes of #139419: Error on recursive opaque ty in HIR typeck

  #141098 opened May 16, 2025

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

  #141096 opened May 16, 2025

• `doc` should report errors for mangled types

  #141095 opened May 16, 2025

• Consider a different tooltip for a partially ignored doctest

  #141092 opened May 16, 2025

• Tracking issue for release notes of #138023: Add `std::io::Seek` instance for `std::io::Take`

  #141091 opened May 16, 2025

• Tracking issue for release notes of #129121: Stabilize `tcp_quickack`

  #141090 opened May 16, 2025

• Tracking issue for release notes of #122661: Change the desugaring of `assert!` for better error output

  #141089 opened May 16, 2025

• Tracking issue for release notes of #130823: Tracking Issue for `non_null_from_ref`

  #141088 opened May 16, 2025

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

  #141087 opened May 16, 2025

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

  #141085 opened May 16, 2025

• Valgrind shows memory leak with possibly lost when running tests with `cargo test`

  #141084 opened May 16, 2025

• rustdoc: Experiment: Inject doctests into the host crate

  #141083 opened May 16, 2025

• suggestion/fix (`use ::item`) is incorrect for editions 2018+

  #141082 opened May 16, 2025

• Confusing error when using non-`XID_Start` characters in lifetime names

  #141081 opened May 16, 2025

• Clarify that `<str>::from_utf8*` methods are aliases to `core::str::from_utf8*` functions

  #141079 opened May 16, 2025

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

  #141075 opened May 16, 2025

• `x test tidy` can be faster

  #141074 opened May 16, 2025

• concurrent `Step` mechanism

  #141073 opened May 16, 2025

• Failures in combined doctests with a test runner are difficult to diagnose

  #141064 opened May 16, 2025

• `Mutex` and `RwLock` borrow suggestions could suggest `get_mut` if applicable

  #141058 opened May 15, 2025

• Type equality bounds disable implied projection outlives bounds

  #141054 opened May 15, 2025

• rustc panics

  #141052 opened May 15, 2025

• refining_impl_trait: The suggested fix does not yet take precise capturing into account.

  #141047 opened May 15, 2025

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

  #141046 opened May 15, 2025

• GVN can create overlapping assignments

  #141038 opened May 15, 2025

• Clarify that `fs::copy` dereferences symlinks instead of copying the link itself

  #141034 opened May 15, 2025

• Tracking Issue for `x86_64-msvc-1` CI failure

  #141022 opened May 15, 2025

• ICE: type parameter `T/#1` (T/#1/1) out of range when instantiating, args=[?0t]

  #141014 opened May 14, 2025

• rustbook fails to compile on Fedora 42 with all dependencies met

  #141012 opened May 14, 2025

• Tracking Issue for `windows_process_extensions_startupinfo`

  #141010 opened May 14, 2025

• `lemmy_db_views_modlog_combined` has a weird performance regression

  #141006 opened May 14, 2025

• The dead_code lint behaves differently on code inside a declarative macro that uses a procedural macro which accepts user-provided tokens for visibility qualifiers

  #141005 opened May 14, 2025

• some macros have scrambled "Since" versions

  #140998 opened May 14, 2025

• Tracking issue for release notes of #139764: Consistent trait bounds for ExtractIf Debug impls

  #140995 opened May 14, 2025

• non sysroot macros re-exported in std have broken source links

  #140992 opened May 14, 2025

• Typoing "." instead of "," in a match produces confusing error messages

  #140991 opened May 14, 2025

• Making trait method `async` causes inference failure (E0790)

  #140987 opened May 14, 2025

• Tracking Issue for `pointer_is_aligned_for`

  #140980 opened May 13, 2025

• ICE: broken mir in AsyncDropGlue, place has deref as a later projection (it is only permitted as the first projection)

  #140975 opened May 13, 2025

• ICE: elaborate drop: index out of bounds

  #140974 opened May 13, 2025

• Failed to compile code targetting `wasm32-wasip2` with `+atomics,+bulk-memory,+mutable-globals` enabled

  #140971 opened May 13, 2025

• rustdoc search: if all else is equal, rank alias results lower

  #140968 opened May 13, 2025

• Tracking issue for release notes of #139357: Fix parameter order for `_by()` variants of `min` / `max`/ `minmax` in `std::cmp`

  #140965 opened May 13, 2025

• relaxed `?Sized` bound getting implied by super trait warn

  #140962 opened May 13, 2025

• Default implementation on std::iter::Fuse should not requires Default on the inner iterator

  #140961 opened May 13, 2025

• Pretty printers for string produce strings of invalid length

  #140958 opened May 13, 2025

• rust_extern_with_linkage___dso_handle+0x0): undefined reference to `__dso_handle'

  #140955 opened May 12, 2025

• endless loop instead of an overflow error, in the presence of multiple requirements that would overflow.

  #140946 opened May 12, 2025

• Slow compilation of actix-web routes

  #140944 opened May 12, 2025

• [proc-macro] Add possibility to generate a `Span` from a path representation

  #140943 opened May 12, 2025

• compiletest "not found errors" output is badly formatted

  #140940 opened May 12, 2025

• LLVM Assertion failed when optimizing SIMD code on aarch64.apple.darwin

  #140933 opened May 12, 2025

• ICE: `open drop from non-ADT `

  #140930 opened May 12, 2025

• `make install` only keeps docs of last target for multi-target builds

  #140922 opened May 11, 2025

• llvm-* and llc binaries missing from rustc build

  #140913 opened May 11, 2025

206 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.

• Sized Hierarchy: Part I

  #137944 commented on May 17, 2025 • 26 new comments

• Improve handling of rustdoc lints when used with raw doc fragments.

  #136400 commented on May 16, 2025 • 9 new comments

• Cygwin support in rustc

  #140154 commented on May 17, 2025 • 8 new comments

• collect doc alias as tips during resolution

  #127721 commented on May 14, 2025 • 6 new comments

• Refactor StableMIR

  #140643 commented on May 15, 2025 • 5 new comments

• Set MSG_NOSIGNAL for UnixStream

  #140005 commented on May 14, 2025 • 4 new comments

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

  #140874 commented on May 16, 2025 • 3 new comments

• Stabilize keylocker

  #140766 commented on May 16, 2025 • 3 new comments

• Move placeholder handling to a proper preprocessing step

  #140466 commented on May 15, 2025 • 3 new comments

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

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

• Add `f16` formatting and parsing

  #127013 commented on May 17, 2025 • 2 new comments

• Safer implementation of RepeatN

  #130887 commented on May 17, 2025 • 2 new comments

• Add support for macro expansion in rustdoc source code pages

  #137229 commented on May 14, 2025 • 2 new comments

• Make performance description of String::insert_str more precise

  #138538 commented on May 15, 2025 • 2 new comments

• Fix parameter order for `_by()` variants of `min` / `max`/ `minmax` in `std::cmp`

  #139357 commented on May 13, 2025 • 2 new comments

• Allow matching on 3+ variant niche-encoded enums to optimize better

  #139729 commented on May 16, 2025 • 2 new comments

• Add per page TOC in the `rustc` book

  #140113 commented on May 17, 2025 • 2 new comments

• split `asm!` parsing and validation

  #140490 commented on May 18, 2025 • 2 new comments

• std: stop using TLS in signal handler

  #140628 commented on May 16, 2025 • 2 new comments

• [win][CI] Convert paths to Windows format before adding to PATH

  #140754 commented on May 16, 2025 • 2 new comments

• Stabilize `sha512`. `sm3` and `sm4` for x86

  #140767 commented on May 16, 2025 • 2 new comments

• Enable xray support for Mac

  #140790 commented on May 15, 2025 • 2 new comments

• minor improvements on running miri

  #140898 commented on May 13, 2025 • 2 new comments

• std: sys: pal: uefi: Overhaul Time

  #139806 commented on May 16, 2025 • 1 new comment

• add `asm_cfg`: `#[cfg(...)]` within `asm!`

  #140367 commented on May 15, 2025 • 1 new comment

• Functionality for `int_format_into` for integer types

  #138338 commented on May 16, 2025 • 1 new comment

• Add `std::io::Seek` instance for `std::io::Take`

  #138023 commented on May 17, 2025 • 1 new comment

• Add `std::os::unix::process::CommandExt::chroot` to safely chroot a child process

  #137759 commented on May 16, 2025 • 1 new comment

• Add lint against (some) interior mutable consts

  #132146 commented on May 16, 2025 • 1 new comment

• Support `-Clink-self-contained=+linker` for `ld.lld` linker flavor

  #140813 commented on May 13, 2025 • 1 new comment

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

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

• Add `Result::map_or_default` and `Option::map_or_default`

  #138068 commented on May 13, 2025 • 0 new comments

• ICE: `did not expect inference variables here` (wfck)

  #137813 commented on May 13, 2025 • 0 new comments

• Describe lifetime of call argument temporaries passed indirectly

  #138489 commented on May 17, 2025 • 0 new comments

• ICE: symbol: assertion `left != right` failed

  #140884 commented on May 13, 2025 • 0 new comments

• Support using const pointers in asm `const` operand

  #138618 commented on May 13, 2025 • 0 new comments

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

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

• add nvptx_target_feature

  #138689 commented on May 13, 2025 • 0 new comments

• Ensure non-empty buffers for large vectored I/O

  #138879 commented on May 16, 2025 • 0 new comments

• Stabilize the avx512 target features

  #138940 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 17, 2025 • 0 new comments

• Tracking Issue for the demotion of i686-pc-windows-gnu

  #138422 commented on May 13, 2025 • 0 new comments

• Error on recursive opaque ty in HIR typeck

  #139419 commented on May 16, 2025 • 0 new comments

• Add `target_env = "macabi"` and `target_env = "sim"`

  #139451 commented on May 15, 2025 • 0 new comments

• Optimize `core::unicode::printable`.

  #139540 commented on May 15, 2025 • 0 new comments

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

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

• support revealing uses of opaques

  #139587 commented on May 16, 2025 • 0 new comments

• Rustfmt now support use closures

  #139692 commented on May 15, 2025 • 0 new comments

• Tracking Issue for `error_generic_member_access`

  #99301 commented on May 13, 2025 • 0 new comments

• [rustdoc] Add new `--book-location` option to add a link to associated guide and generate it if local

  #139769 commented on May 16, 2025 • 0 new comments

• Tracking Issue for complex generic constants: `feature(generic_const_exprs)`

  #76560 commented on May 13, 2025 • 0 new comments

• rustdoc: on mobile, make the sidebar full width and linewrap

  #139831 commented on May 16, 2025 • 0 new comments

• rustdoc: Deprecate option `--test-args` in favor of new insta-stable option `--test-arg`

  #139869 commented on May 16, 2025 • 0 new comments

• Free type aliases should not require all generic parameters to be used

  #140230 commented on May 15, 2025 • 0 new comments

• Handle `rustc_query_system` cases of `rustc::potential_query_instability` lint

  #131200 commented on May 14, 2025 • 0 new comments

• Warn about C-style octal literals

  #131309 commented on May 16, 2025 • 0 new comments

• Add post-mono MIR optimizations

  #131650 commented on May 16, 2025 • 0 new comments

• Support multiple stability attributes on items

  #131824 commented on May 15, 2025 • 0 new comments

• Tracking Issue for duration_constructors_lite

  #140881 commented on May 13, 2025 • 0 new comments

• Make `Rc<T>::deref` and `Arc<T>::deref` zero-cost

  #132553 commented on May 17, 2025 • 0 new comments

• [DO NOT MERGE] bootstrap with `-Znext-solver=globally`

  #133502 commented on May 14, 2025 • 0 new comments

• Specify the behavior of `file!`

  #134442 commented on May 16, 2025 • 0 new comments

• Lint on fn pointers comparisons in external macros

  #134536 commented on May 16, 2025 • 0 new comments

• lint / ImproperCTypes: better handling of indirections, take 2

  #134697 commented on May 14, 2025 • 0 new comments

• Arbitrary self types v2: stabilize

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

• Static thread_local! declarations are moved before Drop is called

  #140816 commented on May 13, 2025 • 0 new comments

• Add contracts for all functions in `Alignment`

  #136578 commented on May 13, 2025 • 0 new comments

• Add checking for unnecessary delims in closure body

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

• Check preds post mono (round 2)

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

• Tracking Issue for `read_buf_at`

  #140771 commented on May 13, 2025 • 0 new comments

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

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

• Stabilize `assert_matches` and move it to `core::macros`

  #137487 commented on May 16, 2025 • 0 new comments

• move tests from tests/rustdoc-ui/ to tests/rustdoc-ui/lints/ where applicable

  #136501 commented on May 13, 2025 • 0 new comments

• Tracking Issue for `box_vec_non_null`

  #130364 commented on May 13, 2025 • 0 new comments

• let_chains stabilization followups

  #140722 commented on May 13, 2025 • 0 new comments

• build_helper: handle emails containing square brackets

  #140675 commented on May 16, 2025 • 0 new comments

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

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

• Split up the `unknown_or_malformed_diagnostic_attributes` lint

  #140717 commented on May 16, 2025 • 0 new comments

• Change File::try_lock() and try_lock_shared() to return io::Result<()>

  #140718 commented on May 13, 2025 • 0 new comments

• [WIP] Region inference: Use outlives-static constraints in constraint search

  #140737 commented on May 16, 2025 • 0 new comments

• ICE：rustc panicked at compiler\rustc_const_eval\src\interpret\operand.rs:416:18

  #139259 commented on May 12, 2025 • 0 new comments

• Add auto-bitcasts between `x86amx` and `i32x256` for AMX intrinsics

  #140763 commented on May 16, 2025 • 0 new comments

• rustdoc thinks Deref extends to functions that use `Pin<&mut Self>`

  #139458 commented on May 11, 2025 • 0 new comments

• Document the contextual keyword `raw`

  #134447 commented on May 11, 2025 • 0 new comments

• add `extern "custom"` functions

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

• {aarch64,x86_64}-*-windows-gnullvm: build host tools

  #140772 commented on May 16, 2025 • 0 new comments

• Clarify upfront that `PartialOrd` is for strict partial orders

  #140779 commented on May 13, 2025 • 0 new comments

• Early/late bound lifetime coercion produces a confusing diagnostic

  #140896 commented on May 11, 2025 • 0 new comments

• Reduce special casing for the panic runtime

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

• Unuseful span in type error in some format_args!() invocations

  #140578 commented on May 11, 2025 • 0 new comments

• aarch64-linux: Default to FramePointer::NonLeaf

  #140832 commented on May 17, 2025 • 0 new comments

• Disallow `export_name` starting with "llvm."

  #140837 commented on May 14, 2025 • 0 new comments

• [rustdoc] Unify type aliases rendering with other ADT

  #140863 commented on May 17, 2025 • 0 new comments

• rustdoc: Fix links with inline code in trait impl docs

  #140868 commented on May 11, 2025 • 0 new comments

• Tracking issue for release notes of #135015: Partially stabilize LoongArch target features

  #139929 commented on May 11, 2025 • 0 new comments

• Make check-cfg diagnostics work in `#[doc(cfg(..))]`

  #140894 commented on May 16, 2025 • 0 new comments

• Tracking Issue for `gen` blocks and functions

  #117078 commented on May 11, 2025 • 0 new comments

• Tracking Issue for `const_array_as_mut_slice`

  #133333 commented on May 13, 2025 • 0 new comments

• fix autodiff macro on generic functions

  #140049 commented on May 12, 2025 • 0 new comments

• Can't specialize `Drop`

  #46893 commented on May 13, 2025 • 0 new comments

• Add LLDB providers for BTreeMap and BTreeSet

  #140130 commented on May 16, 2025 • 0 new comments

• Tracking Issue for `ascii::Char` (ACP 179)

  #110998 commented on May 13, 2025 • 0 new comments

• Allow while let chains on all editions

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

• [crater] Only consider predicate non-global if binder vars are in PREDICATE binder

  #140209 commented on May 16, 2025 • 0 new comments

• implement continue_ok and break_ok for ControlFlow

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

• Stack overflow when `tls_callback` called on `x86_64-pc-windows-gnu`

  #140798 commented on May 12, 2025 • 0 new comments

• dont handle bool transmute

  #140431 commented on May 15, 2025 • 0 new comments

• Add `read_buf` equivalents for positioned reads

  #140459 commented on May 12, 2025 • 0 new comments

• llvm-tblgen Segmentation fault in CI on dist-aarch64-apple

  #109624 commented on May 12, 2025 • 0 new comments

• Confusing error when a const contains a shared ref to interior mutable data

  #140653 commented on May 12, 2025 • 0 new comments

• support revealing uses in HIR typeck

  #140497 commented on May 16, 2025 • 0 new comments

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

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

• docs: Specify that common sort functions sort in an ascending direction

  #140526 commented on May 15, 2025 • 0 new comments

• Allow `#![doc(test(attr(..)))]` everywhere

  #140560 commented on May 14, 2025 • 0 new comments

• Temporary lifetime extension through tuple struct and tuple variant constructors

  #140593 commented on May 15, 2025 • 0 new comments

• compiletest: Improve diagnostics for line annotation mismatches

  #140622 commented on May 12, 2025 • 0 new comments

• Tracking issue for RFC 2294, "if let guard"

  #51114 commented on May 12, 2025 • 0 new comments

• Implement RcUninit (#112566)

  #140640 commented on May 11, 2025 • 0 new comments

• Tracking issue for `#[doc(spotlight)]`

  #45040 commented on May 12, 2025 • 0 new comments

• MIR debuginfo: Capture by value contains additional dereference with `--edition 2021`

  #136486 commented on May 15, 2025 • 0 new comments

• Oddity with lifetime elision and type aliases

  #140611 commented on May 15, 2025 • 0 new comments

• uninterned StableCrateId: StableCrateId(0)

  #140408 commented on May 15, 2025 • 0 new comments

• RPIT(IT)s "leak" internal implementation details of lifetime capturing via boundedness

  #140517 commented on May 15, 2025 • 0 new comments

• Tracking Issue for `try_trait_v2`, A new design for the `?` desugaring (RFC#3058)

  #84277 commented on May 15, 2025 • 0 new comments

• refining_impl_trait: Decide whether explicit opt-in is needed

  #121718 commented on May 15, 2025 • 0 new comments

• Test for #7663 doesn't test anything (?)

  #140780 commented on May 15, 2025 • 0 new comments

• Tracking Issue for unbounded_shifts

  #129375 commented on May 15, 2025 • 0 new comments

• An unsafe const fn being used to compute an array length or const generic is incorrectly described as being an "item".

  #133441 commented on May 16, 2025 • 0 new comments

• Using thread-local state inside proc-macro causes ICE

  #66003 commented on May 16, 2025 • 0 new comments

• Bug: chained where T: trait multiple applicable items

  #140892 commented on May 16, 2025 • 0 new comments

• rustdoc fails after interrupting doc generation

  #140698 commented on May 16, 2025 • 0 new comments

• x.py test --stage 0 src/tools/clippy does not work

  #78717 commented on May 16, 2025 • 0 new comments

• ICE: `None` in pretty printing `self.print_ident(field.ident.unwrap()); `

  #140333 commented on May 16, 2025 • 0 new comments

• never type appears in duplicate diagnostics

  #139790 commented on May 16, 2025 • 0 new comments

• Tracking Issue for `stdarch_s390x_feature_detection`

  #135413 commented on May 16, 2025 • 0 new comments

• Tracking Issue for `stdarch_s390x`

  #135681 commented on May 16, 2025 • 0 new comments

• Tracking Issue for Result::flatten (`result_flattening`)

  #70142 commented on May 16, 2025 • 0 new comments

• Tracking Issue for algebraic floating point methods

  #136469 commented on May 16, 2025 • 0 new comments

• rust-objcopy is x86-64 executable on aarch64-unknown-linux-gnu

  #138943 commented on May 16, 2025 • 0 new comments

• Coherence can be bypassed by an indirect impl for a trait object

  #57893 commented on May 16, 2025 • 0 new comments

• Test for #14082 doesn't test what it should

  #140765 commented on May 14, 2025 • 0 new comments

• Issue with `write_all_at` on GitHub Action

  #140867 commented on May 14, 2025 • 0 new comments

• removing needless `.collect()` in the middle of iterator chain reduces performance significantly

  #140873 commented on May 14, 2025 • 0 new comments

• Change in leaf function causes unrelated compilation error in root function

  #135652 commented on May 14, 2025 • 0 new comments

• Inconsistent `fn` casting behavior in `if`-`else` branches for tuple and struct

  #135970 commented on May 14, 2025 • 0 new comments

• Compile error when directly using `&mut` in explicity const context

  #140126 commented on May 14, 2025 • 0 new comments

• Tracking Issue for `#[repr(align(...))]` on function items (fn_align)

  #82232 commented on May 14, 2025 • 0 new comments

• `file!()` returns incorrect `Path`s on WASM target built on Windows.

  #140883 commented on May 14, 2025 • 0 new comments

• ICE:called `Option::unwrap()` on a `None` value

  #140891 commented on May 14, 2025 • 0 new comments

• ICE: `normalizing free const aliases in the type system is unsupported`

  #140860 commented on May 14, 2025 • 0 new comments

• pub use with glob import behaves differently when re-exported vs directly used

  #140694 commented on May 14, 2025 • 0 new comments

• `#[target_feature]` mismatch on unsafe trait fn vs its impl causes sneaky UB

  #139368 commented on May 14, 2025 • 0 new comments

• ICE：rustc panicked at compiler\rustc_mir_transform\src\validate.rs:1560:30

  #140850 commented on May 14, 2025 • 0 new comments

• Criterion hangs the process because for some reason the server socket can’t detect that client has closed connection

  #116143 commented on May 14, 2025 • 0 new comments

• `dangerous_implicit_autorefs` suggestion is wrong

  #140721 commented on May 14, 2025 • 0 new comments

• With LLVM 20 the SIMD intrinsic `wasm32::u8x16_sub_sat` is compiled to a function call

  #137419 commented on May 14, 2025 • 0 new comments

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

  #140823 commented on May 14, 2025 • 0 new comments

• Add support for repetition to `proc_macro::quote`

  #140238 commented on May 15, 2025 • 0 new comments

• Raw strings w/ too many terminating hashes are not exclusively handled

  #140618 commented on May 15, 2025 • 0 new comments

• regression: crate compiles much slower with 1.82

  #132064 commented on May 15, 2025 • 0 new comments

• Miscompilation: Equal pointers comparing as unequal

  #107975 commented on May 15, 2025 • 0 new comments

• Fix autodiff builds on Apple CI

  #140137 commented on May 15, 2025 • 0 new comments

• [do not merge] CI experiments

  #112049 commented on May 15, 2025 • 0 new comments

• [perf] test MCP510

  #113382 commented on May 13, 2025 • 0 new comments

• Increase parallelism in various locations

  #115003 commented on May 16, 2025 • 0 new comments

• Tracking issue for `thread_local` stabilization

  #29594 commented on May 14, 2025 • 0 new comments

• redesign stage 0 std

  #119899 commented on May 12, 2025 • 0 new comments

• Stabilize associated type position impl Trait (ATPIT)

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

• ICE in object_safety.rs due to method receiver not having a layout

  #57276 commented on May 14, 2025 • 0 new comments

• Emit a warning if a `match` is too complex

  #122685 commented on May 16, 2025 • 0 new comments

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

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

• test

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

• Suggest cloning `Arc` moved into closure

  #124595 commented on May 13, 2025 • 0 new comments

• Implement consecutive shorthand projections (associated type paths) like `T::AssocA::AssocB`

  #126651 commented on May 13, 2025 • 0 new comments

• Tracking Issue for duration_constructors

  #120301 commented on May 14, 2025 • 0 new comments

• release builds using rustc 1.86.0 on macOS Ventura (intel) SDK exhibit incorrect behaviour

  #140686 commented on May 14, 2025 • 0 new comments

• Make `missing_fragment_specifier` an unconditional error

  #128425 commented on May 11, 2025 • 0 new comments

• Stabilize `tcp_quickack`

  #129121 commented on May 16, 2025 • 0 new comments

• Properly deduce object lifetime defaults in projections & trait refs

  #129543 commented on May 15, 2025 • 0 new comments

• Add some track_caller info to precondition panics

  #129658 commented on May 14, 2025 • 0 new comments

• Add inline(usually)

  #130679 commented on May 17, 2025 • 0 new comments

• Remove unstable cfg `target(...)` compact feature

  #130780 commented on May 16, 2025 • 0 new comments

• Fix linking for symbols starting with ? on i686-pc-windows-msvc

  #130808 commented on May 16, 2025 • 0 new comments

• Tracking Issue for `exact_div`

  #139911 commented on May 13, 2025 • 0 new comments

• Tracking Issue for `non_null_from_ref`

  #130823 commented on May 16, 2025 • 0 new comments

• Large files containing many tokens of `const` data compile very slowly and use a lot of memory (in MIR_borrow_checking and expand_crate)

  #134404 commented on May 16, 2025 • 0 new comments

• Spurious irrefutable_let_patterns warning with let-chain

  #139369 commented on May 16, 2025 • 0 new comments

• Decide on behavior of `anonymous_lifetime_in_impl_trait`

  #137575 commented on May 16, 2025 • 0 new comments

• `cargo-fmt` reports weird version on nightly

  #137666 commented on May 16, 2025 • 0 new comments

• Experimental cygwin host support

  #137819 commented on May 17, 2025 • 0 new comments

• Tracking Issue for AVX512 intrinsics

  #111137 commented on May 17, 2025 • 0 new comments

• Heisen-misoptimisation on x86_64

  #112213 commented on May 17, 2025 • 0 new comments

• Tracking Issue for AVX512_FP16 intrinsics

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

• Tracking issue: deref patterns

  #87121 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 for `extern_system_varargs`

  #136946 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

• `fn_cast!` macro

  #140803 commented on May 17, 2025 • 0 new comments

• s390x vector facilities support

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

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

  #139165 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 `f16` and `f128` float types

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

• False-positive with the unreachable code lint

  #88393 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

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

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

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

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