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MIR debuginfo: Capture by value contains additional dereference with <code>--edition 2021</code>

A-debuginfoArea: Debugging information in compiled programs (DWARF, PDB, etc.)Area: Debugging information in compiled programs (DWARF, PDB, etc.)

A-edition-2021Area: The 2021 editionArea: The 2021 edition

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

A-MIRArea: Mid-level IR (MIR) - https://blog.rust-lang.org/2016/04/19/MIR.htmlArea: Mid-level IR (MIR) - https://blog.rust-lang.org/2016/04/19/MIR.html

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.

#136486 In rust-lang/rust;

· prusovak2 opened on Feb 3, 2025

Unexpected partial move in async move block for Copy field

A-edition-2021Area: The 2021 editionArea: The 2021 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.

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

D-editionDiagnostics: An error or lint that should account for edition differences.Diagnostics: An error or lint that should account for edition differences.

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.

#120981 In rust-lang/rust;

· jwilm opened on Feb 12, 2024

Unexpected partial move in closure for <code>Copy</code> field

A-edition-2021Area: The 2021 editionArea: The 2021 edition

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

Status: Open.

#108808 In rust-lang/rust;

· wenym1 opened on Mar 6, 2023

"captured variable cannot escape <code>FnMut</code> closure body" doesn't say which variable escapes

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

A-edition-2021Area: The 2021 editionArea: The 2021 edition

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.

#106438 In rust-lang/rust;

· jyn514 opened on Jan 4, 2023

Suggest 2021 edition upgrade on attempt to use disjoint capture

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

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

A-edition-2021Area: The 2021 editionArea: The 2021 edition

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.

#90157 In rust-lang/rust;

· jruderman opened on Oct 22, 2021

Performance pitfall and regression around closures in Rust 2021

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

A-edition-2021Area: The 2021 editionArea: The 2021 edition

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

I-slowIssue: Problems and improvements with respect to performance of generated code.Issue: Problems and improvements with respect to performance of generated code.

P-mediumMedium priorityMedium priority

Status: Open.

#89470 In rust-lang/rust;

· CryZe opened on Oct 2, 2021

2021 disjoint capture suggestion breaks macro_rules macro

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

A-edition-2021Area: The 2021 editionArea: The 2021 edition

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.

Status: Open.

#88440 In rust-lang/rust;

· ehuss opened on Aug 28, 2021

non_fmt_panic warns on 2021 for external macros

A-edition-2021Area: The 2021 editionArea: The 2021 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.

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

Status: Open.

#88142 In rust-lang/rust;

· ehuss opened on Aug 18, 2021

closure capture migrations do not note when move is now required

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

A-edition-2021Area: The 2021 editionArea: The 2021 edition

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.

#88114 In rust-lang/rust;

· m-ou-se opened on Aug 17, 2021

Invalid <code>dyn</code> suggestions

A-edition-2021Area: The 2021 editionArea: The 2021 edition

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.

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.

#88113 In rust-lang/rust;

· m-ou-se opened on Aug 17, 2021

document and test the precise span that triggers edition-dependent behavior

A-edition-2021Area: The 2021 editionArea: The 2021 edition

E-needs-testCall for participation: An issue has been fixed and does not reproduce, but no test has been added.Call for participation: An issue has been fixed and does not reproduce, but no test has been added.

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.

#86539 In rust-lang/rust;

· nikomatsakis opened on Jun 22, 2021

Tracking Issue for edition-dependent IntoIterator for arrays

A-arrayArea: `[T; N]`Area: `[T; N]`

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

A-edition-2021Area: The 2021 editionArea: The 2021 edition

A-iteratorsArea: IteratorsArea: Iterators

C-tracking-issueCategory: An issue tracking the progress of sth. like the implementation of an RFCCategory: An issue tracking the progress of sth. like the implementation of an RFC

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

Status: Open.

#84513 In rust-lang/rust;

· m-ou-se opened on Apr 24, 2021