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Unhelpful suggestion to borrow when an iterator of wrong type is passed to a method with a trait bound (E0277)

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

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.

#140390 In rust-lang/rust;

· Tehforsch opened on Apr 28, 2025

Unexpected "cannot infer type"

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

A-inferenceArea: Type inferenceArea: Type inference

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

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.

#140262 In rust-lang/rust;

· Spxg opened on Apr 24, 2025

<code>Fn(a: u8)</code> should get a clear diagnostic

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-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.

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.

#140169 In rust-lang/rust;

· cyrgani opened on Apr 22, 2025

Incorrect '&amp;'-reference removal

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.

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.

#140166 In rust-lang/rust;

· adi-joshi opened on Apr 22, 2025

<code>Box::new</code> recommended in struct initialization identifier position

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

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

D-papercutDiagnostics: An error or lint that needs small tweaks.Diagnostics: An error or lint that needs small tweaks.

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.

#139631 In rust-lang/rust;

· ginnyTheCat opened on Apr 10, 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

Invalid format string with certain fill characters yields incorrect suggestion

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

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.

#139104 In rust-lang/rust;

· jdahlstrom opened on Mar 29, 2025

Misleading compiler suggestion: Swapp the equality in rustlib due to mismatched types in user code

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

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.

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.

#139050 In rust-lang/rust;

· jjl9807 opened on Mar 28, 2025

Misleading compiler suggestion: Add semicolon in rustlib due to missing <code>;</code> in user 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.

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.

#139049 In rust-lang/rust;

· jjl9807 opened on Mar 28, 2025

Offer a suggested fix for structs with a single field

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

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.

#138931 In rust-lang/rust;

· Wilfred opened on Mar 25, 2025

Stabilize Style Guide Entry for Precise Capture Syntax

A-docsArea: Documentation for any part of the project, including the compiler, standard library, and toolsArea: Documentation for any part of the project, including the compiler, standard library, and tools

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

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

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

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

Status: Open.

#138527 In rust-lang/rust;

· ytmimi opened on Mar 15, 2025

Better handling of missing closing or opening delimiters, well distinct by type of delimiter

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

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.

#138401 In rust-lang/rust;

· leonardo-m opened on Mar 12, 2025