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some "Unix" targets don't support most Unix idioms

A-cfgArea: `cfg` conditional compilationArea: `cfg` conditional compilation

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

O-unixOperating system: Unix-likeOperating system: Unix-like

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-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.

#141838 In rust-lang/rust;

· workingjubilee opened on May 31, 2025

<code>doc_auto_cfg</code> no longer applies a cfg badge to certain inlined cross-crate re-exported items with a <code>#[cfg]</code>

A-cfgArea: `cfg` conditional compilationArea: `cfg` conditional compilation

A-cross-crate-reexportsArea: Documentation that has been re-exported from a different crateArea: Documentation that has been re-exported from a different crate

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

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

S-has-bisectionStatus: A bisection has been found for this issueStatus: A bisection has been found for this issue

S-has-mcveStatus: A Minimal Complete and Verifiable Example has been found for this issueStatus: A Minimal Complete and Verifiable Example has been found for this issue

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

Status: Open.

#141301 In rust-lang/rust;

· epage opened on May 20, 2025

cfg resolve diagnostic doesn't show up for derive macro that matches trait name

A-cfgArea: `cfg` conditional compilationArea: `cfg` conditional compilation

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

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

D-newcomer-roadblockDiagnostics: Confusing error or lint; hard to understand for new users.Diagnostics: Confusing error or lint; hard to understand for new users.

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.

#134448 In rust-lang/rust;

· joshka opened on Dec 18, 2024

rustdoc: support #![cfg(feature)] that disables doc tests

A-cfgArea: `cfg` conditional compilationArea: `cfg` conditional compilation

A-doctestsArea: Documentation tests, run by rustdocArea: Documentation tests, run by rustdoc

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

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

Status: Open.

#133886 In rust-lang/rust;

· kornelski opened on Dec 5, 2024

Nightly-only cfg gating like <code>#[cfg(target_has_atomic)]</code> is confusing

A-cfgArea: `cfg` conditional compilationArea: `cfg` conditional compilation

A-stabilityArea: `#[stable]`, `#[unstable]` etc.Area: `#[stable]`, `#[unstable]` etc.

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

requires-nightlyThis issue requires a nightly compiler in some way.This issue requires a nightly compiler in some way.

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.

#133295 In rust-lang/rust;

· jieyouxu opened on Nov 21, 2024

Diagnostic doesn't mention cfg'ed out items if the unresolved path is simple (i.e., a single identifier)

A-cfgArea: `cfg` conditional compilationArea: `cfg` conditional compilation

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

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

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.

#132166 In rust-lang/rust;

· fmease opened on Oct 26, 2024

<code>#[cfg(...)]</code> attribute is incorrectly removed from a function parameter inside of the derive macro

A-cfgArea: `cfg` conditional compilationArea: `cfg` conditional compilation

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

A-proc-macrosArea: Procedural macrosArea: Procedural macros

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.

#130004 In rust-lang/rust;

· Veetaha opened on Sep 5, 2024

<code>impl</code> blocks do not support conditional type parameters

A-attributesArea: Attributes (`#[…]`, `#![…]`)Area: Attributes (`#[…]`, `#![…]`)

A-cfgArea: `cfg` conditional compilationArea: `cfg` conditional compilation

A-grammarArea: The grammar of RustArea: The grammar of Rust

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

needs-rfcThis change is large or controversial enough that it should have an RFC accepted before doing it.This change is large or controversial enough that it should have an RFC accepted before doing it.

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

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

Status: Open.

#119281 In rust-lang/rust;

· andreisilviudragnea opened on Dec 24, 2023

cfg(doc) is not respected on cross-crate re-export

A-cfgArea: `cfg` conditional compilationArea: `cfg` conditional compilation

A-cross-crate-reexportsArea: Documentation that has been re-exported from a different crateArea: Documentation that has been re-exported from a different crate

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

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

Status: Open.

#114952 In rust-lang/rust;

· notriddle opened on Aug 17, 2023