20 Pull requests merged by 18 people

• Make no_mangle on foreign items explicit instead of implicit

  #144678 merged Aug 12, 2025

• Rollup of 17 pull requests

  #145300 merged Aug 12, 2025

• bootstrap: Only warn about rust.debug-assertions if downloading rustc

  #145291 merged Aug 12, 2025

• Make I-miscompile imply I-prioritize

  #145283 merged Aug 12, 2025

• Account for new assert! desugaring in !condition suggestion

  #145273 merged Aug 12, 2025

• Update books

  #145263 merged Aug 12, 2025

• Make explicit guarantees about Vec’s allocator

  #145260 merged Aug 12, 2025

• Document compiler and stdlib in stage1 in pr-check-2 CI job

  #145253 merged Aug 12, 2025

• Support using #[unstable_feature_bound] on trait

  #145251 merged Aug 12, 2025

• Rename entered trace span variables from _span to _trace

  #145249 merged Aug 12, 2025

• Tweak invalid builtin attribute output

  #145238 merged Aug 12, 2025

• rustdoc: correct negative-to-implicit discriminant display

  #145216 merged Aug 12, 2025

• fix: re-enable self-assignment

  #145214 merged Aug 12, 2025

• Port #[allow_internal_unsafe] to the new attribute system (attempt 2)

  #145155 merged Aug 12, 2025

• Don't emit rustdoc::broken_intra_doc_links for GitHub-flavored Markdown admonitions like [!NOTE]

  #144921 merged Aug 12, 2025

• Extract TraitImplHeader in AST/HIR

  #144386 merged Aug 12, 2025

• std: sys: pal: uefi: Overhaul Time

  #139806 merged Aug 12, 2025

• Apple: Always pass SDK root when linking with cc, and pass it via SDKROOT env var

  #131477 merged Aug 12, 2025

• Fix a typo in range docs

  #145292 merged Aug 12, 2025

• search graph: improve rebasing and add forced ambiguity support

  #143054 merged Aug 12, 2025

26 Pull requests opened by 21 people

• Constify conversion traits (part 1)

  #145279 opened Aug 11, 2025

• Print regions in `type_name`.

  #145284 opened Aug 12, 2025

• chore(ci): upgrade checkout to v5

  #145289 opened Aug 12, 2025

• Improve std::fs::read_dir docs

  #145290 opened Aug 12, 2025

• Consolidate stage directories and group logs in bootstrap

  #145295 opened Aug 12, 2025

• fix(debuginfo): handle false positives in overflow check

  #145297 opened Aug 12, 2025

• Update to LLVM 21.1.0 rc3

  #145298 opened Aug 12, 2025

• doc test: fix mpsc.rs try_send doc test

  #145299 opened Aug 12, 2025

• Docs: Link to payload_as_str() from payload().

  #145303 opened Aug 12, 2025

• Revert "Partially outline code inside the panic! macro".

  #145304 opened Aug 12, 2025

• Add tracing to various miscellaneous functions

  #145306 opened Aug 12, 2025

• Fix `LazyLock` poison panic message

  #145307 opened Aug 12, 2025

• Adjust documentation of `dangling`

  #145308 opened Aug 12, 2025

• Fix `-Zregparm` for LLVM builtins

  #145309 opened Aug 12, 2025

• Reduce usage of `compiler_for` in bootstrap

  #145310 opened Aug 12, 2025

• ci: clean windows disk space in background

  #145311 opened Aug 12, 2025

• Tweak output of missing lifetime on associated type

  #145314 opened Aug 12, 2025

• Azhogin/async drop box support

  #145316 opened Aug 12, 2025

• Rollup of 7 pull requests

  #145319 opened Aug 12, 2025

• Allow cross-compiling the Cranelift dist component

  #145320 opened Aug 12, 2025

• Resolve the prelude import in `build_reduced_graph`

  #145322 opened Aug 12, 2025

• Port the `#[linkage]` attribute to the new attribute system

  #145323 opened Aug 12, 2025

• Rename and document `ONLY_HOSTS` in bootstrap

  #145324 opened Aug 12, 2025

• Add `cast_init` and `cast_uninit` methods for pointers

  #145325 opened Aug 12, 2025

• compiletest: assert that debugger provided for debuginfo tests and any tests actually collected for run

  #145326 opened Aug 12, 2025

• std: make address resolution weirdness local to SGX

  #145327 opened Aug 12, 2025

14 Issues closed by 7 people

• io::Error::new(_, string literal) allocates Box<Box<String>> and copies the string

  #83352 closed Aug 12, 2025

• We shouldn't be able to tail-call `#[track_caller]` functions

  #145321 closed Aug 12, 2025

• Whether `[const]` RPIT is `const` depends on generic parameters

  #145202 closed Aug 12, 2025

• `mismatched_lifetime_syntaxes` should treat &T and ContainsLifetime as equivalent

  #145312 closed Aug 12, 2025

• Rustdoc reports `broken-intra-doc-links` for Github-flavored Markdown admonitions like `[!IMPORTANT]`

  #141866 closed Aug 12, 2025

• Rustdoc integer overflow when calculating negative fieldless enum value

  #145125 closed Aug 12, 2025

• Spurious "error: could not find native static library `objc`, perhaps an -L flag is missing?" on macOS Big Sur

  #96943 closed Aug 12, 2025

• Linker errors when cross-compiling from Xcode on Big Sur

  #80817 closed Aug 12, 2025

• Test case error

  #145301 closed Aug 12, 2025

• Invalid derive proc macro output silently ignored

  #87314 closed Aug 12, 2025

• Original `pin!()` macro behavior cannot be expressed in Rust 2024

  #138718 closed Aug 12, 2025

• test code usage

  #145302 closed Aug 12, 2025

• better suggestion for HashMap::mut_values

  #145276 closed Aug 12, 2025

• Wrong error: cannot move out of captured outer variable in an `FnMut` closure

  #47850 closed Aug 12, 2025

8 Issues opened by 6 people

• `pin!()` has incorrect/unexpected drop order inside let chains.

  #145328 opened Aug 12, 2025

• &mut self in loop

  #145313 opened Aug 12, 2025

• Proc-Macro-Diagnostics allow error subdiagnostics

  #145305 opened Aug 12, 2025

• Can't define TAIT inside another function

  #145296 opened Aug 12, 2025

• `try wrapping the expression` suggests wrapping `Result` with an extra `Err`

  #145294 opened Aug 12, 2025

• `sqlx-postgres` Fails to Build on Latest 1.91.0

  #145288 opened Aug 12, 2025

• `Uncaught DOMException: String contains an invalid character` on nightly-rustc docs search

  #145287 opened Aug 12, 2025

• Equivalent types have different behavior with trait solver

  #145286 opened Aug 12, 2025

97 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.

• Resolver: Batched Import Resolution

  #145108 commented on Aug 12, 2025 • 12 new comments

• fix(compiler/rustc_codegen_llvm): apply `target-cpu` attribute

  #145275 commented on Aug 12, 2025 • 12 new comments

• Rehome 37 `tests/ui/issues/` tests to other subdirectories under `tests/ui/`

  #144983 commented on Aug 12, 2025 • 9 new comments

• add test to reproduce #137687 and fix it by converting `#[crate_name]` to a new-style attribute parser

  #137729 commented on Aug 12, 2025 • 8 new comments

• rustdoc-search: search backend with partitioned suffix tree

  #144476 commented on Aug 12, 2025 • 8 new comments

• Make `AssocItem` aware of its impl kind

  #145186 commented on Aug 12, 2025 • 7 new comments

• cfg_select: Support unbraced expressions

  #145233 commented on Aug 12, 2025 • 3 new comments

• Make sure to treat only param where clauses as inherent

  #145262 commented on Aug 12, 2025 • 3 new comments

• std: thread: Return error if setting thread stack size fails

  #144210 commented on Aug 12, 2025 • 3 new comments

• Improve tracing in bootstrap

  #145261 commented on Aug 12, 2025 • 2 new comments

• Demote x86_64-apple-darwin to Tier 2 with host tools

  #145252 commented on Aug 12, 2025 • 2 new comments

• Tweak output of missing lifetime on associated type

  #135602 commented on Aug 12, 2025 • 2 new comments

• Handle macros with multiple kinds, and improve errors

  #145153 commented on Aug 12, 2025 • 2 new comments

• Do not materialise X in [X; 0] when X is unsizing a const

  #145277 commented on Aug 12, 2025 • 2 new comments

• uefi: fs: Add file times plumbing

  #138918 commented on Aug 12, 2025 • 2 new comments

• [DRAFT] Update the minimum external LLVM to 20

  #145071 commented on Aug 12, 2025 • 1 new comment

• Add post-mono MIR optimizations

  #131650 commented on Aug 12, 2025 • 1 new comment

• rustdoc: turn is_unnamable into a compiler query

  #145021 commented on Aug 12, 2025 • 1 new comment

• Stabilize `sse4a` and `tbm` target features

  #144542 commented on Aug 12, 2025 • 1 new comment

• Port `#[custom_mir(..)]` to the new attribute system

  #145206 commented on Aug 12, 2025 • 1 new comment

• fmt of non-decimal radix untangled

  #143730 commented on Aug 12, 2025 • 1 new comment

• E0793: Clarify that it applies to unions as well

  #144944 commented on Aug 12, 2025 • 1 new comment

• Fix tail calls to `#[track_caller]` functions

  #144865 commented on Aug 12, 2025 • 1 new comment

• Constify `SystemTime` methods

  #144519 commented on Aug 12, 2025 • 0 new comments

• search graph: lazily update parent goals

  #144955 commented on Aug 12, 2025 • 0 new comments

• ignore head usages from ignored candidates

  #144991 commented on Aug 12, 2025 • 0 new comments

• Stabilize `path_file_prefix` feature

  #144870 commented on Aug 12, 2025 • 0 new comments

• run spellcheck as a tidy extra check in ci

  #145025 commented on Aug 12, 2025 • 0 new comments

• Fix parallel rustc not being reproducible due to unstable sorts of items

  #144722 commented on Aug 12, 2025 • 0 new comments

• editorconfig: don't trim trailing whitespace in tests

  #144642 commented on Aug 12, 2025 • 0 new comments

• Update `rustc_codegen_gcc` rotate operation document

  #145278 commented on Aug 12, 2025 • 0 new comments

• Remove unused `#[must_use]`

  #145274 commented on Aug 12, 2025 • 0 new comments

• Fix an ICE observed with an explicit tail-call in a default trait method

  #145270 commented on Aug 12, 2025 • 0 new comments

• Deprecate RUST_TEST_* env variables

  #145269 commented on Aug 12, 2025 • 0 new comments

• Reduce some queries around associated items

  #145266 commented on Aug 12, 2025 • 0 new comments

• Add new `--test-codegen-backend` bootstrap option

  #145256 commented on Aug 12, 2025 • 0 new comments

• Add regression test for former ICE involving malformed meta items containing interpolated tokens

  #145250 commented on Aug 12, 2025 • 0 new comments

• support non-defining uses of opaques in borrowck

  #145244 commented on Aug 12, 2025 • 0 new comments

• take attr style into account in diagnostics

  #145243 commented on Aug 12, 2025 • 0 new comments

• [AVR] Changed data_layout

  #145241 commented on Aug 12, 2025 • 0 new comments

• Conditionally compile contracts instead of deciding at run-time

  #145229 commented on Aug 12, 2025 • 0 new comments

• Implement declarative (`macro_rules!`) derive macros (RFC 3698)

  #145208 commented on Aug 12, 2025 • 0 new comments

• Weekly `cargo update`

  #145189 commented on Aug 12, 2025 • 0 new comments

• Better sanitize attr diagnostic

  #145182 commented on Aug 12, 2025 • 0 new comments

• Consolidate panicking functions in `slice/index.rs`

  #145137 commented on Aug 12, 2025 • 0 new comments

• Enforce in bootstrap that clippy must have stage at least 1

  #145131 commented on Aug 12, 2025 • 0 new comments

• llvm: Accept new LLVM lifetime format

  #145120 commented on Aug 12, 2025 • 0 new comments

• resolve: Do not finalize shadowed bindings

  #145113 commented on Aug 12, 2025 • 0 new comments

• Set dead_on_return attribute for indirect arguments

  #145093 commented on Aug 12, 2025 • 0 new comments

• Rework target checking for built-in attributes

  #145085 commented on Aug 12, 2025 • 0 new comments

• Add new Tier-3 target: riscv64a23-unknown-linux-gnu

  #145076 commented on Aug 12, 2025 • 0 new comments

• included range in for loop gives more assembly code than excluded range

  #102462 commented on Aug 12, 2025 • 0 new comments

• Tracking Issue for Path::file_prefix

  #86319 commented on Aug 12, 2025 • 0 new comments

• error[E0275]: overflow evaluating the requirement `&_: IntoIterator` does not show a line number

  #118476 commented on Aug 12, 2025 • 0 new comments

• `-Zregparm` does not work correctly for LLVM builtins

  #145271 commented on Aug 12, 2025 • 0 new comments

• E0275 is occuring in beta 1.90.0-beta.1 but not in stable 1.89.0

  #145151 commented on Aug 12, 2025 • 0 new comments

• Tracking issue: Attribute refactor

  #131229 commented on Aug 12, 2025 • 0 new comments

• Tracking issue for improving std::fmt::Arguments and format_args!()

  #99012 commented on Aug 12, 2025 • 0 new comments

• Match guard can both move and static-promote a single constant.

  #145237 commented on Aug 12, 2025 • 0 new comments

• SIGSEGV/SIGILL when running cross-compiled binary on arm-unknown-linux-gnueabihf

  #145264 commented on Aug 12, 2025 • 0 new comments

• UI tests that execute don't include the stdout/err of the executed program in the error message if they fail

  #141531 commented on Aug 12, 2025 • 0 new comments

• rustc build fails when run from a subdirectory of a Rust project - error: current package believes it's in a workspace when it's not:

  #145272 commented on Aug 12, 2025 • 0 new comments

• Tracking Issue for `const_array_each_ref`

  #133289 commented on Aug 12, 2025 • 0 new comments

• rustc fails to prove `Send`ness for an `async` block where a `!Send` value is dropped before an `.await` point

  #128095 commented on Aug 12, 2025 • 0 new comments

• `Command::spawn` on a newly-written file can fail with ETXTBSY due to racing with itself on Unix

  #114554 commented on Aug 12, 2025 • 0 new comments

• Tracking Issue for Scalable Vectors

  #145052 commented on Aug 12, 2025 • 0 new comments

• Rust cannot properly handle complex recursive traits

  #145245 commented on Aug 12, 2025 • 0 new comments

• Tracking Issue for const_ops

  #143802 commented on Aug 12, 2025 • 0 new comments

• Butchered `std::any::type_name` output for trait object types with lifetime params

  #145168 commented on Aug 12, 2025 • 0 new comments

• Name similarity metric should consider ordering of name parts being swapped

  #145015 commented on Aug 12, 2025 • 0 new comments

• Add `note` explaining that the same variant of the same enum with different type params are different types

  #95284 commented on Aug 12, 2025 • 0 new comments

• Suggest adding `&` for "mismatched types: expected reference `&&[&str]`, found reference `&[&str]`"

  #78613 commented on Aug 12, 2025 • 0 new comments

• Misleading error message - Returning Option<T> when Clone not implemented

  #136151 commented on Aug 12, 2025 • 0 new comments

• confusing error: "expected associated type" and "found associated type" are the same in some cases with Fn traits

  #91829 commented on Aug 12, 2025 • 0 new comments

• TypeTree support in autodiff

  #144197 commented on Aug 12, 2025 • 0 new comments

• prefer alias candidates for sizedness + auto trait goals

  #144064 commented on Aug 12, 2025 • 0 new comments

• `rustc_scalable_vector(N)`

  #143924 commented on Aug 12, 2025 • 0 new comments

• Port #[macro_export] to the new attribute parsing infrastructure

  #143857 commented on Aug 12, 2025 • 0 new comments

• Allow linking a prebuilt optimized compiler-rt builtins library

  #143689 commented on Aug 12, 2025 • 0 new comments

• stabilize `const_array_each_ref`

  #143383 commented on Aug 12, 2025 • 0 new comments

• Create `AttrTarget` for attribute parsing

  #143284 commented on Aug 12, 2025 • 0 new comments

• Remove the `#[no_sanitize]` attribute in favor of `#[sanitize(xyz = "on|off")]`

  #142681 commented on Aug 12, 2025 • 0 new comments

• Convert moves of references to copies in ReferencePropagation

  #142185 commented on Aug 12, 2025 • 0 new comments

• Stabilize `if let` guards (`feature(if_let_guard)`)

  #141295 commented on Aug 12, 2025 • 0 new comments

• Sanitizers target modificators

  #138736 commented on Aug 12, 2025 • 0 new comments

• std: net: Add function to return the system hostname

  #135141 commented on Aug 12, 2025 • 0 new comments

• Stabilize `derive(CoercePointee)`

  #133820 commented on Aug 12, 2025 • 0 new comments

• Fix overly restrictive lifetime in `core::panic::Location::file` return type

  #132087 commented on Aug 12, 2025 • 0 new comments

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

  #122661 commented on Aug 12, 2025 • 0 new comments

• ICE: super let: `local still has storage when returning from function`

  #145217 commented on Aug 12, 2025 • 0 new comments

• Tracking Issue for enum access in offset_of

  #120141 commented on Aug 12, 2025 • 0 new comments

• Tracking Issue for `cast_maybe_uninit`

  #145036 commented on Aug 12, 2025 • 0 new comments

• Tracking issue for release notes of #144386: Extract TraitImplHeader in AST/HIR

  #145169 commented on Aug 12, 2025 • 0 new comments

• Tracking issue for release notes of #131477: macOS: Always pass SDK root when linking with `cc`, and pass it via `SDKROOT` env var

  #132424 commented on Aug 12, 2025 • 0 new comments

• Latest rustc tags `unused_imports` on trait imports spuriously

  #145185 commented on Aug 12, 2025 • 0 new comments

• implied bounds from projections in function signatures can be unsound

  #129005 commented on Aug 12, 2025 • 0 new comments

• Tracking Issue for explicit-endian String::from_utf16

  #116258 commented on Aug 12, 2025 • 0 new comments