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Further restricting what coercions are allowed on places of type <code>!</code>

A-coercionsArea: implicit and explicit `expr as Type` coercionsArea: implicit and explicit `expr as Type` coercions

C-discussionCategory: Discussion or questions that doesn't represent real issues.Category: Discussion or questions that doesn't represent real issues.

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

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-opsemRelevant to the opsem teamRelevant to the opsem team

Status: Open.

#131297 In rust-lang/rust;

· compiler-errors opened on Oct 5, 2024

Strengthen the follow-set rule for macros

C-discussionCategory: Discussion or questions that doesn't represent real issues.Category: Discussion or questions that doesn't represent real issues.

I-lang-radarItems that are on lang's radar and will need eventual work or consideration.Items that are on lang's radar and will need eventual work or consideration.

T-langRelevant to the language teamRelevant to the language team

Status: Open.

#131025 In rust-lang/rust;

· traviscross opened on Sep 29, 2024

proc-macro span syntax context and hygiene is underspecified and underdocumented

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-hygieneArea: Macro hygieneArea: Macro hygiene

A-proc-macrosArea: Procedural macrosArea: Procedural macros

C-discussionCategory: Discussion or questions that doesn't represent real issues.Category: Discussion or questions that doesn't represent real issues.

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.

Bug

#130995 In rust-lang/rust;

· jieyouxu opened on Sep 28, 2024

add std and core to nightly-rustc docs

C-discussionCategory: Discussion or questions that doesn't represent real issues.Category: Discussion or questions that doesn't represent real issues.

C-feature-requestCategory: A feature request, i.e: not implemented / a PR.Category: A feature request, i.e: not implemented / a PR.

Status: Open.

#130955 In rust-lang/rust;

· lolbinarycat opened on Sep 27, 2024

[DESIGN BUG] declarative macros lack of neat way to simulate lookahead within rust grammer syntax <code>const X: Y</code>

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

C-discussionCategory: Discussion or questions that doesn't represent real issues.Category: Discussion or questions that doesn't represent real issues.

T-langRelevant to the language teamRelevant to the language team

Status: Open.

#130928 In rust-lang/rust;

· loynoir opened on Sep 27, 2024

The <code>tail_expr_drop_order</code> lint today gives a lot of false positives

C-discussionCategory: Discussion or questions that doesn't represent real issues.Category: Discussion or questions that doesn't represent real issues.

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.

#130836 In rust-lang/rust;

· dingxiangfei2009 opened on Sep 25, 2024

<code>os::unix::process::Command::exec</code> sometimes allocates, violating async signal safety

C-discussionCategory: Discussion or questions that doesn't represent real issues.Category: Discussion or questions that doesn't represent real issues.

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.

#130756 In rust-lang/rust;

· colinmarc opened on Sep 23, 2024

wasm32-wasip1 depends on libc memset with no_std

C-discussionCategory: Discussion or questions that doesn't represent real issues.Category: Discussion or questions that doesn't represent real issues.

O-wasiOperating system: Wasi, Webassembly System InterfaceOperating system: Wasi, Webassembly System Interface

O-wasmTarget: WASM (WebAssembly), http://webassembly.org/Target: WASM (WebAssembly), http://webassembly.org/

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.

#130621 In rust-lang/rust;

· drebbe-intrepid opened on Sep 20, 2024

Is "must_use" really needed for Option::insert ?

C-discussionCategory: Discussion or questions that doesn't represent real issues.Category: Discussion or questions that doesn't represent real issues.

T-langRelevant to the language teamRelevant to the language team

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

Status: Open.

#130594 In rust-lang/rust;

· hardfist opened on Sep 20, 2024

Reconsider Rule 4E (early) for RFC 3627

A-patternsRelating to patterns and pattern matchingRelating to patterns and pattern matching

C-discussionCategory: Discussion or questions that doesn't represent real issues.Category: Discussion or questions that doesn't represent real issues.

T-langRelevant to the language teamRelevant to the language team

Status: Open.

#130501 In rust-lang/rust;

· Nadrieril opened on Sep 18, 2024

rustc since 1.36 accepts invalid code after return

C-discussionCategory: Discussion or questions that doesn't represent real issues.Category: Discussion or questions that doesn't represent real issues.

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.

#130433 In rust-lang/rust;

· shao-hua-li opened on Sep 16, 2024

Permitting "foreign" languages to dispose of Rust panics

A-panicArea: Panicking machineryArea: Panicking machinery

C-discussionCategory: Discussion or questions that doesn't represent real issues.Category: Discussion or questions that doesn't represent real issues.

T-langRelevant to the language teamRelevant to the language team

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

Status: Open.

#130369 In rust-lang/rust;

· BatmanAoD opened on Sep 14, 2024