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Issues: rust-lang/rust

Draft release notes for 1.86.0
#138795 opened Mar 21, 2025 by cuviper
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Issues list

#![no_implicit_prelude] does not disable macros A-macros Area: All kinds of macros (custom derive, macro_rules!, proc macros, ..) A-maybe-future-edition Something we may consider for a future edition. C-bug Category: This is a bug. needs-triage This issue may need triage. Remove it if it has been sufficiently triaged. T-lang Relevant to the language team, which will review and decide on the PR/issue.
#138756 opened Mar 20, 2025 by kpreid
3
offset_of_slice exposes whether a custom DST has a private slice field C-bug Category: This is a bug. F-offset_of_slice `#![feature(offset_of_slice)]` T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#138327 opened Mar 11, 2025 by kpreid
5
Rustdoc UI test suite should more helpfully explain its run-time dependencies in errors, especially npm A-testsuite Area: The testsuite used to check the correctness of rustc C-bug Category: This is a bug. T-rustdoc Relevant to the rustdoc team, which will review and decide on the PR/issue.
#138134 opened Mar 7, 2025 by kpreid
tail_expr_drop_order lint can mention internal __awaitee name A-diagnostics Area: Messages for errors, warnings, and lints A-edition-2024 Area: The 2024 edition A-lints Area: Lints (warnings about flaws in source code) such as unused_mut. I-edition-triaged Issue: This issue has been reviewed and triaged by the Edition team. L-tail_expr_drop_order Lint: tail_expr_drop_order T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#136206 opened Jan 28, 2025 by kpreid
2
f16 creates doc-link ambiguity on stable A-intra-doc-links Area: Intra-doc links, the ability to link to items in docs by name C-bug Category: This is a bug. T-rustdoc Relevant to the rustdoc team, which will review and decide on the PR/issue.
#135897 opened Jan 22, 2025 by kpreid
2
E0106 "missing lifetime specifier" should be omitted when the signature is incorrect in an impl (E0186) A-diagnostics Area: Messages for errors, warnings, and lints T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#135659 opened Jan 17, 2025 by kpreid
impl<T> PointerLike for {Rc,Arc,Weak}<T> can't exist but should C-feature-request Category: A feature request, i.e: not implemented / a PR. F-dyn_star `#![feature(dyn_star)]`
#134591 opened Dec 21, 2024 by kpreid
3
unnameable_test_items does not detect tests in inner modules A-lints Area: Lints (warnings about flaws in source code) such as unused_mut. C-bug Category: This is a bug. L-unnameable_test_items Lint: unnameable_test_items T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#131364 opened Oct 7, 2024 by kpreid
Make E0277 on Sized its own error code with more focused explanation A-diagnostics Area: Messages for errors, warnings, and lints A-error-codes Area: Explanation of an error code (--explain) D-terse Diagnostics: An error or lint that doesn't give enough information about the problem at hand. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. T-libs Relevant to the library team, which will review and decide on the PR/issue.
#130359 opened Sep 14, 2024 by kpreid
2
rustdoc prints the names of private consts when used as const generic parameter defaults A-const-eval Area: Constant evaluation, covers all const contexts (static, const fn, ...) A-const-generics Area: const generics (parameters and arguments) A-visibility Area: Visibility / privacy C-bug Category: This is a bug. T-rustdoc Relevant to the rustdoc team, which will review and decide on the PR/issue.
#129035 opened Aug 13, 2024 by kpreid
unreachable_patterns lint due to min_exhaustive_patterns A-diagnostics Area: Messages for errors, warnings, and lints A-lints Area: Lints (warnings about flaws in source code) such as unused_mut. F-min_exhaustive_patterns `#![feature(min_exhaustive_patterns)]` L-unreachable_patterns Lint: unreachable_patterns T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. T-lang Relevant to the language team, which will review and decide on the PR/issue.
#129031 opened Aug 12, 2024 by kpreid
1
30
Rustdoc links are broken when glob reexporting items from a doc(hidden) module in another crate. A-cross-crate-reexports Area: Documentation that has been re-exported from a different crate A-intra-doc-links Area: Intra-doc links, the ability to link to items in docs by name A-rustdoc-ui Area: Rustdoc UI (generated HTML) C-bug Category: This is a bug. T-rustdoc Relevant to the rustdoc team, which will review and decide on the PR/issue.
#127445 opened Jul 7, 2024 by kpreid
unnameable_types should show where the type is reachable A-diagnostics Area: Messages for errors, warnings, and lints A-lints Area: Lints (warnings about flaws in source code) such as unused_mut. A-visibility Area: Visibility / privacy D-terse Diagnostics: An error or lint that doesn't give enough information about the problem at hand. L-unnameable_types Lint: unnameable_types T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#126435 opened Jun 13, 2024 by kpreid
3
unnameable_types lint emits incorrect visibility syntax A-diagnostics Area: Messages for errors, warnings, and lints A-lints Area: Lints (warnings about flaws in source code) such as unused_mut. D-papercut Diagnostics: An error or lint that needs small tweaks. L-unnameable_types Lint: unnameable_types T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#126241 opened Jun 10, 2024 by kpreid
1
Visited links are made indistinguishable A-docs Area: Documentation for any part of the project, including the compiler, standard library, and tools C-bug Category: This is a bug. T-release Relevant to the release subteam, which will review and decide on the PR/issue.
#124499 opened Apr 28, 2024 by kpreid
Spurious “constant provided when a type was expected” upon syntax error in a generic parameter list A-diagnostics Area: Messages for errors, warnings, and lints A-parser Area: The parsing of Rust source code to an AST D-confusing Diagnostics: Confusing error or lint that should be reworked. D-verbose Diagnostics: Too much output caused by a single piece of incorrect code. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#124298 opened Apr 23, 2024 by kpreid
@fmease
1
Lint against creating an invariant, perpetual &mut borrow (&'a mut T<'a>) A-lints Area: Lints (warnings about flaws in source code) such as unused_mut. A-variance Area: Variance (https://doc.rust-lang.org/nomicon/subtyping.html) C-feature-request Category: A feature request, i.e: not implemented / a PR. T-lang Relevant to the language team, which will review and decide on the PR/issue.
#120481 opened Jan 29, 2024 by kpreid
Temporary lifetime extension applies to the last expression of a for loop body, causing unnecessary errors A-lifetimes Area: Lifetimes / regions C-bug Category: This is a bug.
#118544 opened Dec 2, 2023 by kpreid
2
More precisely point out what is immutable, in E0596 "cannot borrow data in a & reference as mutable" A-diagnostics Area: Messages for errors, warnings, and lints T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#113842 opened Jul 18, 2023 by kpreid
1
2
TAIT: typed patterns don't count as defining uses A-impl-trait Area: `impl Trait`. Universally / existentially quantified anonymous types with static dispatch. C-bug Category: This is a bug. F-type_alias_impl_trait `#[feature(type_alias_impl_trait)]`
#113596 opened Jul 11, 2023 by kpreid
Explain how to fix “no field on type” on a TAIT / ATPIT typed value A-diagnostics Area: Messages for errors, warnings, and lints A-impl-trait Area: `impl Trait`. Universally / existentially quantified anonymous types with static dispatch. D-terse Diagnostics: An error or lint that doesn't give enough information about the problem at hand. F-impl_trait_in_assoc_type `#![feature(impl_trait_in_assoc_type)]` F-type_alias_impl_trait `#[feature(type_alias_impl_trait)]` T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#113581 opened Jul 11, 2023 by kpreid
1
Unclear unwind safety for std::alloc::Allocator::{grow,shrink} A-allocators Area: Custom and system allocators A-docs Area: Documentation for any part of the project, including the compiler, standard library, and tools
#104224 opened Nov 10, 2022 by kpreid
1
Poor recovery from pub let x = ... A-diagnostics Area: Messages for errors, warnings, and lints T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#101622 opened Sep 9, 2022 by kpreid
2
@oriongonza
2
"cannot return … reference to data owned by the current function" even though the result would be a harmless reborrow A-borrow-checker Area: The borrow checker A-diagnostics Area: Messages for errors, warnings, and lints D-papercut Diagnostics: An error or lint that needs small tweaks. D-terse Diagnostics: An error or lint that doesn't give enough information about the problem at hand. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#95324 opened Mar 26, 2022 by kpreid
Suggestions when a single-field enum variant pattern is needed A-diagnostics Area: Messages for errors, warnings, and lints A-suggestion-diagnostics Area: Suggestions generated by the compiler applied by `cargo fix` C-enhancement Category: An issue proposing an enhancement or a PR with one. D-newcomer-roadblock Diagnostics: Confusing error or lint; hard to understand for new users. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#94942 opened Mar 14, 2022 by kpreid
ProTip! What’s not been updated in a month: updated:<2025-02-24.