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<code>unused_must_use</code> triggers inside macro where suggestion does not make sense

A-lintsArea: Lints (warnings about flaws in source code) such as unused_mut.Area: Lints (warnings about flaws in source code) such as unused_mut.

A-suggestion-diagnosticsArea: Suggestions generated by the compiler applied by `cargo fix`Area: Suggestions generated by the compiler applied by `cargo fix`

C-bugCategory: This is a bug.Category: This is a bug.

D-invalid-suggestionDiagnostics: A structured suggestion resulting in incorrect code.Diagnostics: A structured suggestion resulting in incorrect code.

needs-triageThis issue may need triage. Remove it if it has been sufficiently triaged.This issue may need triage. Remove it if it has been sufficiently triaged.

Status: Open.

#143025 In rust-lang/rust;

· matthiaskrgr opened on Jun 25, 2025

Incorrect help suggestion on a syntax error in the where part of an enum

A-diagnosticsArea: Messages for errors, warnings, and lintsArea: Messages for errors, warnings, and lints

A-parserArea: The lexing & parsing of Rust source code to an ASTArea: The lexing & parsing of Rust source code to an AST

D-invalid-suggestionDiagnostics: A structured suggestion resulting in incorrect code.Diagnostics: A structured suggestion resulting in incorrect code.

T-compilerRelevant to the compiler team, which will review and decide on the PR/issue.Relevant to the compiler team, which will review and decide on the PR/issue.

Status: Open.

#143023 In rust-lang/rust;

· Dylan-DPC opened on Jun 25, 2025

invalid syntax in "consider further restricting this bound" when there is already a bound present

A-diagnosticsArea: Messages for errors, warnings, and lintsArea: Messages for errors, warnings, and lints

A-suggestion-diagnosticsArea: Suggestions generated by the compiler applied by `cargo fix`Area: Suggestions generated by the compiler applied by `cargo fix`

A-trait-systemArea: Trait systemArea: Trait system

D-invalid-suggestionDiagnostics: A structured suggestion resulting in incorrect code.Diagnostics: A structured suggestion resulting in incorrect code.

T-compilerRelevant to the compiler team, which will review and decide on the PR/issue.Relevant to the compiler team, which will review and decide on the PR/issue.

Status: Open.

#142803 In rust-lang/rust;

· lolbinarycat opened on Jun 20, 2025

<code>closure-returning-async-block</code> suggestion causes <code>does not live long enough</code> error

A-async-awaitArea: Async & AwaitArea: Async & Await

A-async-closures`async || {}``async || {}`

A-diagnosticsArea: Messages for errors, warnings, and lintsArea: Messages for errors, warnings, and lints

C-bugCategory: This is a bug.Category: This is a bug.

D-invalid-suggestionDiagnostics: A structured suggestion resulting in incorrect code.Diagnostics: A structured suggestion resulting in incorrect code.

T-compilerRelevant to the compiler team, which will review and decide on the PR/issue.Relevant to the compiler team, which will review and decide on the PR/issue.

Status: Open.

#142145 In rust-lang/rust;

· matthiaskrgr opened on Jun 7, 2025

Baffling suggestion labelled "help: try introducing a local generic parameter here"

A-const-genericsArea: const generics (parameters and arguments)Area: const generics (parameters and arguments)

A-diagnosticsArea: Messages for errors, warnings, and lintsArea: Messages for errors, warnings, and lints

A-macrosArea: All kinds of macros (custom derive, macro_rules!, proc macros, ..)Area: All kinds of macros (custom derive, macro_rules!, proc macros, ..)

D-confusingDiagnostics: Confusing error or lint that should be reworked.Diagnostics: Confusing error or lint that should be reworked.

D-invalid-suggestionDiagnostics: A structured suggestion resulting in incorrect code.Diagnostics: A structured suggestion resulting in incorrect code.

E-needs-mcveCall for participation: This issue has a repro, but needs a Minimal Complete and Verifiable ExampleCall for participation: This issue has a repro, but needs a Minimal Complete and Verifiable Example

T-compilerRelevant to the compiler team, which will review and decide on the PR/issue.Relevant to the compiler team, which will review and decide on the PR/issue.

Status: Open.

#141872 In rust-lang/rust;

· nabijaczleweli opened on Jun 1, 2025

False positive <code>unused_lifetime</code>

A-diagnosticsArea: Messages for errors, warnings, and lintsArea: Messages for errors, warnings, and lints

C-bugCategory: This is a bug.Category: This is a bug.

D-invalid-suggestionDiagnostics: A structured suggestion resulting in incorrect code.Diagnostics: A structured suggestion resulting in incorrect code.

L-unused_lifetimesLint: unused_lifetimesLint: unused_lifetimes

T-compilerRelevant to the compiler team, which will review and decide on the PR/issue.Relevant to the compiler team, which will review and decide on the PR/issue.

Status: Open.

#141784 In rust-lang/rust;

· matthiaskrgr opened on May 30, 2025

False positive unused_braces

A-diagnosticsArea: Messages for errors, warnings, and lintsArea: Messages for errors, warnings, and lints

A-lintsArea: Lints (warnings about flaws in source code) such as unused_mut.Area: Lints (warnings about flaws in source code) such as unused_mut.

C-bugCategory: This is a bug.Category: This is a bug.

D-invalid-suggestionDiagnostics: A structured suggestion resulting in incorrect code.Diagnostics: A structured suggestion resulting in incorrect code.

L-false-positiveLint: False positive (should not have fired).Lint: False positive (should not have fired).

L-unused_bracesLint: unused_bracesLint: unused_braces

T-compilerRelevant to the compiler team, which will review and decide on the PR/issue.Relevant to the compiler team, which will review and decide on the PR/issue.

Status: Open.

#141783 In rust-lang/rust;

· matthiaskrgr opened on May 30, 2025

refining_impl_trait: The suggested fix does not yet take precise capturing into account.

A-diagnosticsArea: Messages for errors, warnings, and lintsArea: Messages for errors, warnings, and lints

A-impl-traitArea: `impl Trait`. Universally / existentially quantified anonymous types with static dispatch.Area: `impl Trait`. Universally / existentially quantified anonymous types with static dispatch.

A-lintsArea: Lints (warnings about flaws in source code) such as unused_mut.Area: Lints (warnings about flaws in source code) such as unused_mut.

D-invalid-suggestionDiagnostics: A structured suggestion resulting in incorrect code.Diagnostics: A structured suggestion resulting in incorrect code.

L-refining_impl_traitLint group: refining_impl_traitLint group: refining_impl_trait

T-compilerRelevant to the compiler team, which will review and decide on the PR/issue.Relevant to the compiler team, which will review and decide on the PR/issue.

Status: Open.

#141047 In rust-lang/rust;

· Tamschi opened on May 15, 2025

"[E0603] unit variant <code>X</code> is private. help: import <code>X</code> directly" suggests invalid path in private module

A-diagnosticsArea: Messages for errors, warnings, and lintsArea: Messages for errors, warnings, and lints

A-resolveArea: Name/path resolution done by `rustc_resolve` specificallyArea: Name/path resolution done by `rustc_resolve` specifically

A-visibilityArea: Visibility / privacyArea: Visibility / privacy

D-invalid-suggestionDiagnostics: A structured suggestion resulting in incorrect code.Diagnostics: A structured suggestion resulting in incorrect code.

T-compilerRelevant to the compiler team, which will review and decide on the PR/issue.Relevant to the compiler team, which will review and decide on the PR/issue.

Status: Open.

#140831 In rust-lang/rust;

· ZaneErebos opened on May 8, 2025

<code>cargo fix --edition</code> failed: <code>error: expected item after attributes</code>

A-edition-2024Area: The 2024 editionArea: The 2024 edition

A-lintsArea: Lints (warnings about flaws in source code) such as unused_mut.Area: Lints (warnings about flaws in source code) such as unused_mut.

A-macrosArea: All kinds of macros (custom derive, macro_rules!, proc macros, ..)Area: All kinds of macros (custom derive, macro_rules!, proc macros, ..)

C-bugCategory: This is a bug.Category: This is a bug.

D-invalid-suggestionDiagnostics: A structured suggestion resulting in incorrect code.Diagnostics: A structured suggestion resulting in incorrect code.

F-precise_capturing`#![feature(precise_capturing)]``#![feature(precise_capturing)]`

T-compilerRelevant to the compiler team, which will review and decide on the PR/issue.Relevant to the compiler team, which will review and decide on the PR/issue.

Status: Open.

#139567 In rust-lang/rust;

· eval-exec opened on Apr 9, 2025

Inappropriate suggestion when mismatched types occur in the <code>dbg!</code> macro

A-diagnosticsArea: Messages for errors, warnings, and lintsArea: Messages for errors, warnings, and lints

A-macrosArea: All kinds of macros (custom derive, macro_rules!, proc macros, ..)Area: All kinds of macros (custom derive, macro_rules!, proc macros, ..)

D-invalid-suggestionDiagnostics: A structured suggestion resulting in incorrect code.Diagnostics: A structured suggestion resulting in incorrect code.

E-needs-bisectionCall for participation: This issue needs bisection: https://github.com/rust-lang/cargo-bisect-rustcCall for participation: This issue needs bisection: https://github.com/rust-lang/cargo-bisect-rustc

T-compilerRelevant to the compiler team, which will review and decide on the PR/issue.Relevant to the compiler team, which will review and decide on the PR/issue.

Status: Open.

#139253 In rust-lang/rust;

· jjl9807 opened on Apr 2, 2025

Misleading diagnostic for <code>error[E0277]</code>

A-diagnosticsArea: Messages for errors, warnings, and lintsArea: Messages for errors, warnings, and lints

A-macrosArea: All kinds of macros (custom derive, macro_rules!, proc macros, ..)Area: All kinds of macros (custom derive, macro_rules!, proc macros, ..)

D-invalid-suggestionDiagnostics: A structured suggestion resulting in incorrect code.Diagnostics: A structured suggestion resulting in incorrect code.

E-needs-bisectionCall for participation: This issue needs bisection: https://github.com/rust-lang/cargo-bisect-rustcCall for participation: This issue needs bisection: https://github.com/rust-lang/cargo-bisect-rustc

T-compilerRelevant to the compiler team, which will review and decide on the PR/issue.Relevant to the compiler team, which will review and decide on the PR/issue.

Status: Open.

#139251 In rust-lang/rust;

· jjl9807 opened on Apr 2, 2025