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Issues list

Incomplete inference guidance due to Sized param-env clause causes method selection failure A-inference Area: Type inference A-trait-system Area: Trait system C-bug Category: This is a bug. fixed-by-next-solver Fixed by the next-generation trait solver, `-Znext-solver`. T-types Relevant to the types team, which will review and decide on the PR/issue.
#137812 opened Feb 28, 2025 by compiler-errors
1
Implied bounds compat mode does not deduce sufficient outlives bounds C-bug Category: This is a bug.
#137767 by compiler-errors was closed Mar 5, 2025
1
@compiler-errors
1
ICE when lowering sym fn operand in global/inline asm macro that has a nested def id A-inline-assembly Area: Inline assembly (`asm!(…)`) 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.
#137179 by compiler-errors was closed Feb 23, 2025
1
@compiler-errors
Reword ?Trait bound diagnostic 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.
#136944 opened Feb 12, 2025 by compiler-errors
@fmease
Lifetime generics on Generic Const Items should not affect if const is checked for evaluatability C-bug Category: This is a bug. F-generic_const_items `#![feature(generic_const_items)]` T-types Relevant to the types team, which will review and decide on the PR/issue.
#136204 opened Jan 28, 2025 by compiler-errors
@fmease
Robustify the TyKind ambig/unambig layout compatibility tests C-enhancement Category: An issue proposing an enhancement or a PR with one. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#135944 opened Jan 23, 2025 by compiler-errors
1
Better error reporting for T: ?Sized types when impl Receiver for MyType<T> is implicitly sized A-diagnostics Area: Messages for errors, warnings, and lints C-discussion Category: Discussion or questions that doesn't represent real issues. D-confusing Diagnostics: Confusing error or lint that should be reworked. F-arbitrary_self_types `#![feature(arbitrary_self_types)]`
#134390 opened Dec 16, 2024 by compiler-errors
@cramertj
7
compare_method_predicate_entailment is missing implied bounds from higher-ranked GAT A-GATs Area: Generic associated types (GATs) A-higher-ranked Area: Higher-ranked things (e.g., lifetimes, types, trait bounds aka HRTBs) A-implied-bounds Area: Implied bounds / inferred outlives-bounds A-trait-system Area: Trait system C-bug Category: This is a bug. T-types Relevant to the types team, which will review and decide on the PR/issue.
#133805 opened Dec 3, 2024 by compiler-errors
RPITITs may imply unsound outlives for late-bound args in signature A-impl-trait Area: `impl Trait`. Universally / existentially quantified anonymous types with static dispatch. C-bug Category: This is a bug. F-return_position_impl_trait_in_trait `#![feature(return_position_impl_trait_in_trait)]` I-unsound Issue: A soundness hole (worst kind of bug), see: https://en.wikipedia.org/wiki/Soundness P-high High priority T-types Relevant to the types team, which will review and decide on the PR/issue.
#133427 by compiler-errors was closed Nov 28, 2024
1
@compiler-errors
3
Check for dyn providing all of its projections is incomplete w.r.t. different supertrait substitutions A-trait-objects Area: trait objects, vtable layout C-bug Category: This is a bug. I-ICE Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️ T-types Relevant to the types team, which will review and decide on the PR/issue.
#133388 by compiler-errors was closed Dec 15, 2024
1
@compiler-errors
Coherence with object types with overlapping supertrait projections is incomplete A-coherence Area: Coherence A-trait-objects Area: trait objects, vtable layout C-bug Category: This is a bug. I-unsound Issue: A soundness hole (worst kind of bug), see: https://en.wikipedia.org/wiki/Soundness P-high High priority T-types Relevant to the types team, which will review and decide on the PR/issue.
#133361 by compiler-errors was closed Feb 22, 2025
1
@compiler-errors
4
Tracking Issue for const_destruct C-tracking-issue Category: An issue tracking the progress of sth. like the implementation of an RFC F-const_trait_impl `#![feature(const_trait_impl)]` PG-const-traits Project group: Const traits T-lang Relevant to the language team, which will review and decide on the PR/issue. T-libs-api Relevant to the library API team, which will review and decide on the PR/issue. T-types Relevant to the types team, which will review and decide on the PR/issue.
#133214 opened Nov 19, 2024 by compiler-errors
1 of 3 tasks
1
Tracking Issue for async_fn_in_dyn_trait B-experimental Blocker: In-tree experiment; RFC pending, not yet approved or unneeded (requires FCP to stabilize). C-tracking-issue Category: An issue tracking the progress of sth. like the implementation of an RFC F-async_fn_in_dyn_trait `#![feature(async_fn_in_dyn_trait)]` T-lang Relevant to the language team, which will review and decide on the PR/issue.
#133119 opened Nov 16, 2024 by compiler-errors
2 of 7 tasks
@compiler-errors
4
~const is allowed on structs (and other bad positions) within const fn. C-bug Category: This is a bug. F-const_trait_impl `#![feature(const_trait_impl)]` T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#132067 opened Oct 23, 2024 by compiler-errors
Further restricting what coercions are allowed on places of type ! A-coercions Area: implicit and explicit `expr as Type` coercions C-discussion Category: Discussion or questions that doesn't represent real issues. F-never_type `#![feature(never_type)]` T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. T-opsem Relevant to the opsem team
#131297 opened Oct 5, 2024 by compiler-errors
6
Stack overflow with clashing_extern_declarations A-lints Area: Lints (warnings about flaws in source code) such as unused_mut. C-bug Category: This is a bug. I-crash Issue: The compiler crashes (SIGSEGV, SIGABRT, etc). Use I-ICE instead when the compiler panics. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#130947 opened Sep 27, 2024 by compiler-errors
4 tasks
Tracking issue for removing unnecessary ty::Const::{normalize,eval} calls from the type system A-const-generics Area: const generics (parameters and arguments) T-types Relevant to the types team, which will review and decide on the PR/issue.
#130704 opened Sep 22, 2024 by compiler-errors
5 of 7 tasks
@compiler-errors
6
Audit usages of std::env::*_var in the compiler C-cleanup Category: PRs that clean code up or issues documenting cleanup. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#130672 opened Sep 21, 2024 by compiler-errors
1
Detect situations where a visitor implementation is skipped by accidentally directly calling the corresponding walk function A-lints Area: Lints (warnings about flaws in source code) such as unused_mut. C-cleanup Category: PRs that clean code up or issues documenting cleanup. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#129859 opened Sep 1, 2024 by compiler-errors
Method probe should consider where clauses on method C-enhancement Category: An issue proposing an enhancement or a PR with one. T-types Relevant to the types team, which will review and decide on the PR/issue.
#129669 opened Aug 27, 2024 by compiler-errors
2
Regression in clone impl of enum with variant that has a field with a bivariant substitution A-coercions Area: implicit and explicit `expr as Type` coercions A-variance Area: Variance (https://doc.rust-lang.org/nomicon/subtyping.html) C-bug Category: This is a bug. P-medium Medium priority regression-from-stable-to-nightly Performance or correctness regression from stable to nightly. T-types Relevant to the types team, which will review and decide on the PR/issue.
#129286 by compiler-errors was closed Sep 2, 2024
1
@compiler-errors
3
Can't cast higher-ranked safe fn to (not higher-ranked) unsafe fn ptr A-coercions Area: implicit and explicit `expr as Type` coercions C-bug Category: This is a bug. P-medium Medium priority regression-from-stable-to-nightly Performance or correctness regression from stable to nightly. T-types Relevant to the types team, which will review and decide on the PR/issue.
#129285 by compiler-errors was closed Aug 26, 2024
1
@compiler-errors
Work tracking issue for moving rustc_infer error reporting into rustc_trait_selection A-diagnostics Area: Messages for errors, warnings, and lints A-type-system Area: Type system C-tracking-issue Category: An issue tracking the progress of sth. like the implementation of an RFC T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. T-types Relevant to the types team, which will review and decide on the PR/issue.
#127492 opened Jul 8, 2024 by compiler-errors
7 of 12 tasks
@compiler-errors
safe keyword is not feature-gated P-high High priority regression-from-stable-to-beta Performance or correctness regression from stable to beta. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#126755 by compiler-errors was closed Jul 5, 2024
@compiler-errors
4
Associated types in object-safe method signatures don't always come from supertraits A-trait-objects Area: trait objects, vtable layout C-bug Category: This is a bug. I-unsound Issue: A soundness hole (worst kind of bug), see: https://en.wikipedia.org/wiki/Soundness P-high High priority T-types Relevant to the types team, which will review and decide on the PR/issue.
#126079 by compiler-errors was closed Jul 26, 2024
1
@compiler-errors
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