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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

Erroneous suggestion to add .field when matching arrays A-diagnostics Area: Messages for errors, warnings, and lints D-invalid-suggestion Diagnostics: A structured suggestion resulting in incorrect code. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#91058 by compiler-errors was closed Nov 21, 2021 updated Nov 21, 2021
1
@compiler-errors
1
Nightly compiler panics when attempting to mutate a shared reference. C-bug Category: This is a bug. I-ICE Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️ P-high High priority regression-from-stable-to-nightly Performance or correctness regression from stable to nightly. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#91206 by Jonxslays was closed Nov 26, 2021 updated Nov 26, 2021
1
@compiler-errors
7
Compiler panicked when using yield keyword. A-coroutines Area: Coroutines C-bug Category: This is a bug. I-ICE Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️ T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#91477 by SamMatzko was closed Dec 4, 2021 updated Dec 4, 2021
1
@compiler-errors
1
Unmatched brace in a format string crashes the compiler C-bug Category: This is a bug. I-ICE Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️ T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#91556 by VorfeedCanal was closed Dec 11, 2021 updated Dec 11, 2021
1
@compiler-errors
1
error help suggests writing down a closure type, which would be a syntax error A-diagnostics Area: Messages for errors, warnings, and lints A-suggestion-diagnostics Area: Suggestions generated by the compiler applied by `cargo fix` D-invalid-suggestion Diagnostics: A structured suggestion resulting in incorrect code. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#91832 by jendrikw was closed Dec 15, 2021 updated Dec 15, 2021
1
@compiler-errors
1
rustc suggests to use path::_; with as _ trait re-exports A-diagnostics Area: Messages for errors, warnings, and lints A-doctests Area: Documentation tests, run by rustdoc A-suggestion-diagnostics Area: Suggestions generated by the compiler applied by `cargo fix` C-bug Category: This is a bug. D-invalid-suggestion Diagnostics: A structured suggestion resulting in incorrect code. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#86035 by jplatte was closed Dec 21, 2021 updated Dec 21, 2021
1
@compiler-errors
2
Broken help message for missing lifetime when using <_ as Trait> syntax in type alias A-diagnostics Area: Messages for errors, warnings, and lints C-bug Category: This is a bug. P-medium Medium priority regression-from-stable-to-nightly Performance or correctness regression from stable to nightly.
#92324 by JanBeh was closed Dec 28, 2021 updated Dec 28, 2021
1
@compiler-errors
6
struct update syntax causes ICE C-bug Category: This is a bug. glacier ICE tracked in rust-lang/glacier. I-ICE Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️ T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#91502 by gautamg795 was closed Dec 29, 2021 updated Dec 29, 2021
1
@compiler-errors
6
ICE vec iter C-bug Category: This is a bug. glacier ICE tracked in rust-lang/glacier. I-ICE Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️ T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#92100 by smallB007 was closed Dec 29, 2021 updated Dec 29, 2021
1
@compiler-errors
6
Remove in_band_lifetimes from rustdoc C-cleanup Category: PRs that clean code up or issues documenting cleanup. E-easy Call for participation: Easy difficulty. Experience needed to fix: Not much. Good first issue. E-mentor Call for participation: This issue has a mentor. Use #t-compiler/help on Zulip for discussion. T-rustdoc Relevant to the rustdoc team, which will review and decide on the PR/issue.
#92368 by camelid was closed Dec 30, 2021 updated Dec 30, 2021
1
@compiler-errors
3
ICE: Layout::new and ptr_metadata causes "<T as Pointee>::Metadata has an unknown layout" error C-bug Category: This is a bug. glacier ICE tracked in rust-lang/glacier. I-ICE Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️ T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#92128 by tuxmark5 was closed Jan 10, 2022 updated Jan 10, 2022
1
@compiler-errors
1
Unexpected E0271 while using Pointee trait A-inference Area: Type inference A-trait-system Area: Trait system C-bug Category: This is a bug. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#91446 by CraftSpider was closed Jan 10, 2022 updated Jan 10, 2022
1
@compiler-errors
1
Compiler sometimes does not have generic_const_exprs and await play nice together C-bug Category: This is a bug. I-ICE Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️ T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#92634 by gregoryquick was closed Jan 10, 2022 updated Jan 10, 2022
1
@compiler-errors
1
Poor diagnostic when passing T: Drop (nonconst only) to a function that takes ~const Drop in an inline const A-const-eval Area: Constant evaluation, covers all const contexts (static, const fn, ...) A-diagnostics Area: Messages for errors, warnings, and lints A-trait-system Area: Trait system D-confusing Diagnostics: Confusing error or lint that should be reworked. D-terse Diagnostics: An error or lint that doesn't give enough information about the problem at hand. F-const_trait_impl `#![feature(const_trait_impl)]` F-inline_const Inline constants (aka: const blocks, const expressions, anonymous constants) T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#92713 by PatchMixolydic was closed Jan 15, 2022 updated Jan 15, 2022
1
@compiler-errors
1
Inferring const parameters to wrapper type causes rustc to panic. C-bug Category: This is a bug. glacier ICE tracked in rust-lang/glacier. I-ICE Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️ T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#92626 by nzentzis was closed Jan 18, 2022 updated Jan 18, 2022
2
@compiler-errors
3
Calling slice method on newtype wrapper that implements Deref<Target=[_; 1]> causes ICE C-bug Category: This is a bug. glacier ICE tracked in rust-lang/glacier. I-ICE Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️ T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#92637 by compiler-errors was closed Jan 18, 2022 updated Jan 18, 2022
2
@compiler-errors
1
~const bounds do not work when impling const Drop C-bug Category: This is a bug.
#92881 by beepster4096 was closed Jan 24, 2022 updated Jan 24, 2022
2
@compiler-errors
8
Regression in Deref<Target = dyn Fn(T)>: forcing query with already existing DepNode A-incr-comp Area: Incremental compilation C-bug Category: This is a bug. I-ICE Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️ P-high High priority regression-from-stable-to-stable Performance or correctness regression from one stable version to another. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#91807 by dtolnay was closed Jan 30, 2022 updated Jan 30, 2022
1
@compiler-errors
7
Lifetime inference fails when construct then returning an instance of a GAT C-bug Category: This is a bug.
#92836 by hlb8122 was closed Jan 31, 2022 updated Jan 31, 2022
1
@compiler-errors
4
no errors encountered even though delay_span_bug issued glacier ICE tracked in rust-lang/glacier.
#93282 by WaffleLapkin was closed Jan 26, 2022 updated Feb 2, 2022
1
@compiler-errors
9
Compiler expected where but there is a where C-bug Category: This is a bug.
#93567 by aaronddavies was closed Feb 2, 2022 updated Feb 2, 2022
1
@compiler-errors
1
Invalid Left-hand Assignment Provides Incorrect Syntax as Solution A-diagnostics Area: Messages for errors, warnings, and lints C-bug Category: This is a bug. D-invalid-suggestion Diagnostics: A structured suggestion resulting in incorrect code. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#93486 by KSBilodeau was closed Feb 2, 2022 updated Feb 2, 2022
1
@compiler-errors
3
Type inference around Iterator::collect can result in confusing error messages 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.
#91423 by meithecatte was closed Feb 10, 2022 updated Feb 10, 2022
1
@compiler-errors
1
incremental ICE: StableHasher: unexpected region '_#44 compiler/rustc_middle/src/ty/impls_ty.rs:97:17 C-bug Category: This is a bug. I-ICE Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️ T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#92240 by matthiaskrgr was closed Feb 11, 2022 updated Feb 11, 2022
1
@compiler-errors
1
Const generic default ICE: The type checker should prevent reading from a never-written local A-const-generics Area: const generics (parameters and arguments) C-bug Category: This is a bug. glacier ICE tracked in rust-lang/glacier. I-ICE Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️ T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#93646 by DutchGhost was closed Feb 12, 2022 updated Feb 12, 2022
1
@compiler-errors
5
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