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Regression: false negative lint dead_code: dead code is not detected for struct if it implements FromStr

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-false-negativeLint: False negative (should have fired but didn't).Lint: False negative (should have fired but didn't).

P-lowLow priorityLow 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.

#142541 In rust-lang/rust;

· safinaskar opened on Jun 15, 2025

Stack overflow while running rust program

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-enhancementCategory: An issue proposing an enhancement or a PR with one.Category: An issue proposing an enhancement or a PR with one.

L-false-negativeLint: False negative (should have fired but didn't).Lint: False negative (should have fired but didn't).

L-unconditional_recursionLint: unconditional_recursionLint: unconditional_recursion

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.

#139187 In rust-lang/rust;

· Harshit933 opened on Mar 31, 2025

private_bounds: false negative on trait impl

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-false-negativeLint: False negative (should have fired but didn't).Lint: False negative (should have fired but didn't).

L-private_boundsLint: private_boundsLint: private_bounds

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.

#139159 In rust-lang/rust;

· Kyuuhachi opened on Mar 30, 2025

false-negative <code>unused_parens</code> in closures consisting of just one expression

A-closuresArea: Closures (`|…| { … }`)Area: Closures (`|…| { … }`)

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-false-negativeLint: False negative (should have fired but didn't).Lint: False negative (should have fired but didn't).

L-unused_parensLint: unused_parensLint: unused_parens

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.

#136741 In rust-lang/rust;

· ada4a opened on Feb 8, 2025

closure upvars disable <code>unused_assignments</code> lint

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-false-negativeLint: False negative (should have fired but didn't).Lint: False negative (should have fired but didn't).

L-unused_variablesLint: unused_variablesLint: unused_variables

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.

#134413 In rust-lang/rust;

· lcnr opened on Dec 17, 2024

Unwarned Trait recursion causes stack overflow

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-enhancementCategory: An issue proposing an enhancement or a PR with one.Category: An issue proposing an enhancement or a PR with one.

L-false-negativeLint: False negative (should have fired but didn't).Lint: False negative (should have fired but didn't).

L-unconditional_recursionLint: unconditional_recursionLint: unconditional_recursion

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.

#132588 In rust-lang/rust;

· aevyrie opened on Nov 4, 2024

<code>unused_parens</code> should lint superfluous parentheses on the LHS of an assignment

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-false-negativeLint: False negative (should have fired but didn't).Lint: False negative (should have fired but didn't).

L-unused_parensLint: unused_parensLint: unused_parens

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.

#71329 In rust-lang/rust;

· fanzier opened on Apr 19, 2020

<code>unused_parens</code> never checks expressions behind references

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-false-negativeLint: False negative (should have fired but didn't).Lint: False negative (should have fired but didn't).

L-unused_parensLint: unused_parensLint: unused_parens

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.

#70084 In rust-lang/rust;

· lcnr opened on Mar 17, 2020

<code>unused_parens</code> is not emitted for exprs used in macro.

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.

L-false-negativeLint: False negative (should have fired but didn't).Lint: False negative (should have fired but didn't).

L-unused_parensLint: unused_parensLint: unused_parens

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.

#70076 In rust-lang/rust;

· lcnr opened on Mar 17, 2020