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Issues list

#![feature(..)] outside of crate root only warns and should be louder A-diagnostics Area: Messages for errors, warnings, and lints A-lints Area: Lints (warnings about flaws in source code) such as unused_mut. D-newcomer-roadblock Diagnostics: Confusing error or lint; hard to understand for new users. D-terse Diagnostics: An error or lint that doesn't give enough information about the problem at hand. L-unused_attributes Lint: unused_attributes requires-nightly This issue requires a nightly compiler in some way. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#134856 opened Dec 28, 2024 by estebank
Warn on Fullwidth Exclamation Mark (U+FF01) in comment A-lints Area: Lints (warnings about flaws in source code) such as unused_mut. A-Unicode Area: Unicode T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. T-rustdoc Relevant to the rustdoc team, which will review and decide on the PR/issue.
#134810 opened Dec 27, 2024 by dtolnay
8
Missing unreachable code/arm warning, when a match guard is diverging A-lints Area: Lints (warnings about flaws in source code) such as unused_mut. C-bug Category: This is a bug. L-unreachable_code Lint: unreachable_code T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#134734 opened Dec 24, 2024 by WaffleLapkin
1
unreachable_patterns emitted on _ that matches a local of uninhabited type (that is uninitialized) A-lints Area: Lints (warnings about flaws in source code) such as unused_mut. C-bug Category: This is a bug. L-unreachable_patterns Lint: unreachable_patterns T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#134733 opened Dec 24, 2024 by WaffleLapkin
1
derive(PartialEq) should not prevent "field is never read" warnings A-diagnostics Area: Messages for errors, warnings, and lints A-lints Area: Lints (warnings about flaws in source code) such as unused_mut. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#134588 opened Dec 20, 2024 by Wilfred
3
unpredictable_function_pointer_comparisons doesn't lint against Option<fn()> A-lints Area: Lints (warnings about flaws in source code) such as unused_mut. C-bug Category: This is a bug.
#134527 opened Dec 19, 2024 by kornelski
1
@Urgau
1
Unsized types in required trait methods A-lints Area: Lints (warnings about flaws in source code) such as unused_mut. A-trait-objects Area: trait objects, vtable layout C-feature-request Category: A feature request, i.e: not implemented / a PR. needs-rfc This change is large or controversial enough that it should have an RFC accepted before doing it. T-lang Relevant to the language 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.
#134475 opened Dec 18, 2024 by ionicmc-rs
9
closure upvars disable unused_assignments lint A-lints Area: Lints (warnings about flaws in source code) such as unused_mut. C-bug Category: This is a bug. L-false-negative Lint: False negative (should have fired but didn't). L-unused_variables Lint: unused_variables T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#134413 opened Dec 17, 2024 by lcnr
2
Warn when more specific lint overridden by a lint group A-diagnostics Area: Messages for errors, warnings, and lints A-lints Area: Lints (warnings about flaws in source code) such as unused_mut. C-discussion Category: Discussion or questions that doesn't represent real issues. 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.
#134382 opened Dec 16, 2024 by dev-ardi
unused_allocation lint produces incorrect suggestion for Box comparison A-diagnostics Area: Messages for errors, warnings, and lints A-lints Area: Lints (warnings about flaws in source code) such as unused_mut. D-incorrect Diagnostics: A diagnostic that is giving misleading or incorrect information. L-unused_allocation Lint: unused_allocation T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#134186 opened Dec 12, 2024 by arvidfm
Always show the lint name involved in a diagnostic? A-diagnostics Area: Messages for errors, warnings, and lints A-lints Area: Lints (warnings about flaws in source code) such as unused_mut. C-discussion Category: Discussion or questions that doesn't represent real issues. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. WG-diagnostics Working group: Diagnostics
#134634 opened Dec 11, 2024 by Kannen
3
Lint against manual impl Default that could have been derived A-lints Area: Lints (warnings about flaws in source code) such as unused_mut. I-lang-nominated Nominated for discussion during a lang team meeting. S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. 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. T-libs Relevant to the library team, which will review and decide on the PR/issue.
#134175 opened Dec 11, 2024 by estebank • Draft
@jieyouxu
27
Unsafe Loop when using mem::transmute & Unpreventable Due to a Macro A-lints Area: Lints (warnings about flaws in source code) such as unused_mut. S-needs-info Status: The issue lacks details necessary to triage or act on it. S-needs-repro Status: This issue has no reproduction and needs a reproduction to make progress. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#134018 opened Dec 8, 2024 by WillKirkmanM
4
Tracking issue for release notes of #131558: Lint on combining #[no_mangle] and #[export_name] A-lints Area: Lints (warnings about flaws in source code) such as unused_mut. L-unused_attributes Lint: unused_attributes relnotes Marks issues that should be documented in the release notes of the next release. relnotes-tracking-issue Marks issues tracking what text to put in release notes. 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.
#134011 opened Dec 7, 2024 by rustbot
1 of 3 tasks
1.85.0
edition 2024 migration of Command::before_exec is suboptimal and doesn't compile A-edition-2024 Area: The 2024 edition A-lints Area: Lints (warnings about flaws in source code) such as unused_mut. C-bug Category: This is a bug. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#134003 opened Dec 7, 2024 by eric-seppanen
6
Bad + use<> suggestion in nested macro_rules A-edition-2024 Area: The 2024 edition A-lints Area: Lints (warnings about flaws in source code) such as unused_mut. A-macros Area: All kinds of macros (custom derive, macro_rules!, proc macros, ..) A-suggestion-diagnostics Area: Suggestions generated by the compiler applied by `cargo fix` C-bug Category: This is a bug. D-edition Diagnostics: An error or lint that should account for edition differences. D-invalid-suggestion Diagnostics: A structured suggestion resulting in incorrect code. E-needs-mcve Call for participation: This issue has a repro, but needs a Minimal Complete and Verifiable Example L-impl_trait_overcaptures Lint: impl_trait_overcaptures T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#133769 opened Dec 2, 2024 by ehuss
2
cargo fix produces incorrect code when removing last unused dependency next to self as __ syntax A-lints Area: Lints (warnings about flaws in source code) such as unused_mut. 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. L-dead_code Lint: dead_code T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#133750 opened Dec 2, 2024 by bragov4ik
1
keyword-idents is incompatible with macros A-edition-2024 Area: The 2024 edition A-lints Area: Lints (warnings about flaws in source code) such as unused_mut. A-macros Area: All kinds of macros (custom derive, macro_rules!, proc macros, ..) A-suggestion-diagnostics Area: Suggestions generated by the compiler applied by `cargo fix` C-bug Category: This is a bug. D-edition Diagnostics: An error or lint that should account for edition differences. D-invalid-suggestion Diagnostics: A structured suggestion resulting in incorrect code. L-keyword_idents Lint group: keyword_idents L-keyword_idents_2024 Lint: keyword_idents_2024 T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#133709 opened Dec 1, 2024 by ehuss
1
Tracking issue for release notes of #133374: show abi_unsupported_vector_types lint in future breakage reports A-ABI Area: Concerning the application binary interface (ABI) A-lints Area: Lints (warnings about flaws in source code) such as unused_mut. A-SIMD Area: SIMD (Single Instruction Multiple Data) A-target-feature Area: Enabling/disabling target features like AVX, Neon, etc. L-abi_unsupported_vector_types Lint: abi_unsupported_vector_types relnotes Marks issues that should be documented in the release notes of the next release. relnotes-tracking-issue Marks issues tracking what text to put in release notes. 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.
#133376 opened Nov 23, 2024 by rustbot
1 of 3 tasks
1.85.0
2
non-camel-case-types lint does not flag repr(C) types A-lints Area: Lints (warnings about flaws in source code) such as unused_mut. A-repr Area: the `#[repr(stuff)]` attribute C-discussion Category: Discussion or questions that doesn't represent real issues. L-non_camel_case_types Lint: non_camel_case_types 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.
#132925 opened Nov 12, 2024 by jstarks
Bad span in suggestion for unsafe_attr_outside_unsafe in macro expansion with cfg_attr 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. A-macros Area: All kinds of macros (custom derive, macro_rules!, proc macros, ..) A-suggestion-diagnostics Area: Suggestions generated by the compiler applied by `cargo fix` C-bug Category: This is a bug. D-edition Diagnostics: An error or lint that should account for edition differences. D-invalid-suggestion Diagnostics: A structured suggestion resulting in incorrect code. L-unsafe_attr_outside_unsafe Lint: unsafe_attr_outside_unsafe T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#132908 opened Nov 11, 2024 by ehuss
2
3
Bad suggestion for macro_rules macros generated from a proc-macro 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. A-suggestion-diagnostics Area: Suggestions generated by the compiler applied by `cargo fix` C-bug Category: This is a bug. D-edition Diagnostics: An error or lint that should account for edition differences. D-invalid-suggestion Diagnostics: A structured suggestion resulting in incorrect code. L-unsafe_op_in_unsafe_fn Lint: unsafe_op_in_unsafe_fn T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#132906 opened Nov 11, 2024 by ehuss
7
False positive dead_code lint when type is only used via destructuring A-diagnostics Area: Messages for errors, warnings, and lints A-lints Area: Lints (warnings about flaws in source code) such as unused_mut. L-dead_code Lint: dead_code T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#132874 opened Nov 10, 2024 by daniel5151
1
@m-ysk
4
rust_2024_prelude_collisions fails with glob of underscore import A-edition-2024 Area: The 2024 edition A-lints Area: Lints (warnings about flaws in source code) such as unused_mut. A-resolve Area: Name/path resolution done by `rustc_resolve` specifically A-suggestion-diagnostics Area: Suggestions generated by the compiler applied by `cargo fix` C-bug Category: This is a bug. D-edition Diagnostics: An error or lint that should account for edition differences. D-invalid-suggestion Diagnostics: A structured suggestion resulting in incorrect code. S-has-mcve Status: A Minimal Complete and Verifiable Example has been found for this issue 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.
#132864 opened Nov 10, 2024 by ehuss
3
Possible false-negative with tail-expr-drop-order 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. C-bug Category: This is a bug. D-edition Diagnostics: An error or lint that should account for edition differences. F-shorter_tail_lifetimes `#![feature(shorter_tail_lifetimes)]` L-false-negative Lint: False negative (should have fired but didn't). 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. T-lang Relevant to the language team, which will review and decide on the PR/issue.
#132861 opened Nov 10, 2024 by ehuss
1
@dingxiangfei2009
10
ProTip! Adding no:label will show everything without a label.