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Issues: rust-lang/rust

Draft release notes for 1.88.0
#141598 opened May 26, 2025 by Mark-Simulacrum
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Issues list

Encountered incremental compilation error with find_field(a5f984281f1e0bb0-ee8ea99685b18732) A-decl-macros-2-0 Area: Declarative macros 2.0 (#39412) A-incr-comp Area: Incremental compilation A-macros Area: All kinds of macros (custom derive, macro_rules!, proc macros, ..) C-bug Category: This is a bug. F-decl_macro `#![feature(decl_macro)]` I-ICE Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️ S-needs-repro Status: This issue has no reproduction and needs a reproduction to make progress. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#125678 opened May 28, 2024 by jflatow
5
Macro literal fragment specifiers should forward to exact tokens A-decl-macros-2-0 Area: Declarative macros 2.0 (#39412) A-macros Area: All kinds of macros (custom derive, macro_rules!, proc macros, ..) A-maybe-future-edition Something we may consider for a future edition. T-lang Relevant to the language team, which will review and decide on the PR/issue. WG-macros Working group: Macros
#124989 opened May 10, 2024 by tgross35
4
Associated item resolution fails when using both macros v2 and proc macros A-decl-macros-2-0 Area: Declarative macros 2.0 (#39412) A-macros Area: All kinds of macros (custom derive, macro_rules!, proc macros, ..) A-proc-macros Area: Procedural macros A-resolve Area: Name/path resolution done by `rustc_resolve` specifically C-bug Category: This is a bug. F-decl_macro `#![feature(decl_macro)]` T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#113638 opened Jul 13, 2023 by Arc-blroth
New declarative macros, functions and fields not being recognized A-decl-macros-2-0 Area: Declarative macros 2.0 (#39412) A-macros Area: All kinds of macros (custom derive, macro_rules!, proc macros, ..) C-discussion Category: Discussion or questions that doesn't represent real issues. F-decl_macro `#![feature(decl_macro)]` requires-nightly This issue requires a nightly compiler in some way.
#91249 opened Nov 26, 2021 by BeastLe9enD
35
Macros 2.0: macro defined and used in same function-like scope can't resolve its own items A-decl-macros-2-0 Area: Declarative macros 2.0 (#39412) A-resolve Area: Name/path resolution done by `rustc_resolve` specifically F-decl_macro `#![feature(decl_macro)]` T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#52389 opened Jul 14, 2018 by arielb1
2
proc_macro::TokenStream: provide AST node kind hint A-decl-macros-2-0 Area: Declarative macros 2.0 (#39412) C-feature-request Category: A feature request, i.e: not implemented / a PR.
#50053 opened Apr 18, 2018 by abonander
8
Span issues with FromStr in unstable proc_macro A-decl-macros-2-0 Area: Declarative macros 2.0 (#39412) C-bug Category: This is a bug. E-needs-test Call for participation: An issue has been fixed and does not reproduce, but no test has been added. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#48944 opened Mar 12, 2018 by mystor
3
Compiling crate serde-derive with "-Z sanitizer=leak" fails A-decl-macros-2-0 Area: Declarative macros 2.0 (#39412) A-sanitizers Area: Sanitizers for correctness and code quality C-bug Category: This is a bug. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#48199 opened Feb 14, 2018 by djg
5
Non-items dropped in custom derive A-decl-macros-2-0 Area: Declarative macros 2.0 (#39412) A-diagnostics Area: Messages for errors, warnings, and lints C-enhancement Category: An issue proposing an enhancement or a PR with one. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#48038 opened Feb 6, 2018 by antoyo
@jseyfried
3
Extremely weird hygiene behavior when invoking a macro from the calling crate in a Derive A-decl-macros-2-0 Area: Declarative macros 2.0 (#39412) A-hygiene Area: Macro hygiene C-bug Category: This is a bug. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#47988 opened Feb 3, 2018 by sgrif
@jseyfried
Editing proc-macro crate = undefined symbol A-decl-macros-2-0 Area: Declarative macros 2.0 (#39412) C-bug Category: This is a bug.
#47936 opened Feb 1, 2018 by sgrif
5
Accessing private fields from the def site of a proc macro A-decl-macros-2-0 Area: Declarative macros 2.0 (#39412) A-hygiene Area: Macro hygiene A-macros Area: All kinds of macros (custom derive, macro_rules!, proc macros, ..) A-proc-macros Area: Procedural macros C-bug Category: This is a bug. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#46635 opened Dec 10, 2017 by antoyo
@jseyfried
13
Crate not found when using extern macro in another macro and invoked from another crate A-decl-macros-2-0 Area: Declarative macros 2.0 (#39412) C-bug Category: This is a bug. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#44817 opened Sep 24, 2017 by tikue
@jseyfried
1
Tracking issue: declarative macros 2.0 A-decl-macros-2-0 Area: Declarative macros 2.0 (#39412) A-hygiene Area: Macro hygiene A-macros Area: All kinds of macros (custom derive, macro_rules!, proc macros, ..) B-RFC-approved Blocker: Approved by a merged RFC but not yet implemented. B-unstable Blocker: Implemented in the nightly compiler and unstable. C-tracking-issue Category: An issue tracking the progress of sth. like the implementation of an RFC F-decl_macro `#![feature(decl_macro)]` S-tracking-design-concerns Status: There are blocking design concerns. T-lang Relevant to the language team, which will review and decide on the PR/issue. WG-macros Working group: Macros
#39412 opened Jan 30, 2017 by nrc
11 of 19 tasks
80
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