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Latest rustc tags <code>unused_imports</code> on trait imports spuriously

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.

L-unused_importsLint: unused_importsLint: unused_imports

P-highHigh priorityHigh priority

regression-from-stable-to-stablePerformance or correctness regression from one stable version to another.Performance or correctness regression from one stable version to another.

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.

#145185 In rust-lang/rust;

· TheBlueMatt opened on Aug 9, 2025

<code>unused_imports</code> on <code>pub use macros::*</code> should explain that <code>[macro_export]</code> macros don't need to be exported.

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.

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

D-terseDiagnostics: An error or lint that doesn't give enough information about the problem at hand.Diagnostics: An error or lint that doesn't give enough information about the problem at hand.

L-unused_importsLint: unused_importsLint: unused_imports

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.

#132102 In rust-lang/rust;

· Kriskras99 opened on Oct 24, 2024

Compiler marks import as unnecessary when it isn't (panic_handler)

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.

L-unused_importsLint: unused_importsLint: unused_imports

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.

#127852 In rust-lang/rust;

· mysteriouslyseeing opened on Jul 17, 2024

False negative lint for <code>unused_imports</code>

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.

L-unused_importsLint: unused_importsLint: unused_imports

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.

#126122 In rust-lang/rust;

· bvanjoi opened on Jun 7, 2024

weird behavior from <code>-Fdead_code</code> vs <code>-Funused</code>

A-clippyArea: ClippyArea: Clippy

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.

L-dead_codeLint: dead_codeLint: dead_code

L-unused_importsLint: unused_importsLint: unused_imports

Status: Open.

#126029 In rust-lang/rust;

· andrewbanchich opened on Jun 5, 2024

Consider splitting unused_import's glob re-export visibility warning into its own lint

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.

L-unused_importsLint: unused_importsLint: unused_imports

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.

T-langRelevant to the language teamRelevant to the language team

Status: Open.

#123210 In rust-lang/rust;

· arifd opened on Mar 29, 2024

<code>unused_imports</code> lints on an import from a crate with a lang item

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.

L-unused_importsLint: unused_importsLint: unused_imports

Status: Open.

#109261 In rust-lang/rust;

· Niki4tap opened on Mar 17, 2023

Does not warn <code>unused_imports</code> for unused modules imports with the same name as a type

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

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

L-unused_importsLint: unused_importsLint: unused_imports

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.

#85317 In rust-lang/rust;

· EFanZh opened on May 15, 2021

Unused import warning fires incorrectly for imports used and shadowed by decl_macro's.

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.

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

L-unused_importsLint: unused_importsLint: unused_imports

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.

#54476 In rust-lang/rust;

· eddyb opened on Sep 22, 2018