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Issues list

Tracking Issue for super let B-experimental Blocker: In-tree experiment; RFC pending, not yet approved or unneeded (requires FCP to stabilize). 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 S-tracking-design-concerns Status: There are blocking design concerns. T-lang Relevant to the language team
#139076 opened Mar 28, 2025 by m-ou-se
18 of 29 tasks
4
Tracking Issue for -Z llvm-plugins -Zllvm-plugins Unstable option: LLVM plugins A-LLVM Area: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues. C-tracking-issue Category: An issue tracking the progress of sth. like the implementation of an RFC S-tracking-design-concerns Status: There are blocking design concerns. S-tracking-needs-documentation Status: Needs documentation. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#127577 opened Jul 10, 2024 by nikic
1 of 3 tasks
[blocked on design] [PoC]: rustdoc (html): add support for variances A-rustdoc-json Area: Rustdoc JSON backend needs-fcp This change is insta-stable, or significant enough to need a team FCP to proceed. S-blocked Status: Blocked on something else such as an RFC or other implementation work. S-tracking-design-concerns Status: There are blocking design concerns. T-rustdoc Relevant to the rustdoc team, which will review and decide on the PR/issue.
#123220 opened Mar 30, 2024 by fmease • Draft
1
3
Diagnostic Translation A-diagnostics Area: Messages for errors, warnings, and lints A-translation Area: Translation infrastructure, and migrating existing diagnostics to SessionDiagnostic C-tracking-issue Category: An issue tracking the progress of sth. like the implementation of an RFC S-tracking-design-concerns Status: There are blocking design concerns. S-tracking-impl-incomplete Status: The implementation is incomplete. S-tracking-needs-deep-research Status: This feature needs deep research to solve design or implementation issues. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#100717 opened Aug 18, 2022 by davidtwco
54 of 84 tasks
110
Tracking Issue for extended_varargs_abi_support C-tracking-issue Category: An issue tracking the progress of sth. like the implementation of an RFC F-extended_varargs_abi_support `#![feature(extended_varargs_abi_support)]` S-tracking-design-concerns Status: There are blocking design concerns. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#100189 opened Aug 6, 2022 by Soveu
1 of 3 tasks
3
Tracking Issue for cfg(target_has_atomic_load_store) C-tracking-issue Category: An issue tracking the progress of sth. like the implementation of an RFC S-tracking-design-concerns Status: There are blocking design concerns. T-lang Relevant to the language team
#94039 opened Feb 16, 2022 by Mark-Simulacrum
3 tasks
2
Tracking Issue for cfg_target_has_atomic_equal_alignment C-tracking-issue Category: An issue tracking the progress of sth. like the implementation of an RFC S-tracking-design-concerns Status: There are blocking design concerns. S-tracking-needs-to-bake Status: The implementation is "complete" but it needs time to bake. T-lang Relevant to the language team
#93822 opened Feb 9, 2022 by Amanieu
Tracking Issue for used_with_arg A-linkage Area: linking into static, shared libraries and binaries C-tracking-issue Category: An issue tracking the progress of sth. like the implementation of an RFC F-used_with_arg `#![feature(used_with_arg)]` S-tracking-design-concerns Status: There are blocking design concerns. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#93798 opened Feb 9, 2022 by nikic
1 of 6 tasks
4
Tracking issue for pref_align_of intrinsic A-intrinsics Area: Intrinsics C-tracking-issue Category: An issue tracking the progress of sth. like the implementation of an RFC S-tracking-design-concerns Status: There are blocking design concerns. S-tracking-needs-summary Status: It's hard to tell what's been done and what hasn't! Someone should do some investigation. T-lang Relevant to the language team T-libs-api Relevant to the library API team, which will review and decide on the PR/issue.
#91971 opened Dec 15, 2021 by RalfJung
@workingjubilee
7
Tracking Issue for -Z no-unique-section-names A-binary-formats Area: binary formats (e.g. ELF, XCOFF, etc.) A-CLI Area: Command-line interface (CLI) to the compiler A-LLVM Area: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues. C-tracking-issue Category: An issue tracking the progress of sth. like the implementation of an RFC S-tracking-design-concerns Status: There are blocking design concerns. S-tracking-needs-summary Status: It's hard to tell what's been done and what hasn't! Someone should do some investigation. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#90275 opened Oct 25, 2021 by jblazquez
2 of 4 tasks
1
Tracking issue: deref patterns A-patterns Relating to patterns and pattern matching B-experimental Blocker: In-tree experiment; RFC pending, not yet approved or unneeded (requires FCP to stabilize). C-tracking-issue Category: An issue tracking the progress of sth. like the implementation of an RFC F-deref_patterns `#![feature(deref_patterns)]` needs-rfc This change is large or controversial enough that it should have an RFC accepted before doing it. S-tracking-design-concerns Status: There are blocking design concerns. T-lang Relevant to the language team
#87121 opened Jul 14, 2021 by nrc
1 of 6 tasks
66
Tracking Issue for try_trait_v2, A new design for the ? desugaring (RFC#3058) B-RFC-approved Blocker: Approved by a merged RFC but not yet implemented. C-tracking-issue Category: An issue tracking the progress of sth. like the implementation of an RFC F-try_trait_v2 Tracking issue for RFC#3058 S-tracking-design-concerns Status: There are blocking design concerns. T-lang Relevant to the language team T-libs-api Relevant to the library API team, which will review and decide on the PR/issue.
#84277 opened Apr 17, 2021 by scottmcm
9 of 23 tasks
135
Tracking Issue for RFC 3086: macro metavariable expressions B-RFC-approved Blocker: Approved by a merged RFC but not yet implemented. C-tracking-issue Category: An issue tracking the progress of sth. like the implementation of an RFC F-macro_metavar_expr `#![feature(macro_metavar_expr)]` S-tracking-design-concerns Status: There are blocking design concerns. T-lang Relevant to the language team
#83527 opened Mar 26, 2021 by nikomatsakis
1 of 4 tasks
48
Tracking Issue for large_assignments lint A-lints Area: Lints (warnings about flaws in source code) such as unused_mut. C-tracking-issue Category: An issue tracking the progress of sth. like the implementation of an RFC E-help-wanted Call for participation: Help is requested to fix this issue. E-medium Call for participation: Medium difficulty. Experience needed to fix: Intermediate. E-mentor Call for participation: This issue has a mentor. Use #t-compiler/help on Zulip for discussion. S-tracking-design-concerns Status: There are blocking design concerns. T-lang Relevant to the language team
#83518 opened Mar 26, 2021 by oli-obk
6 of 14 tasks
22
Tracking issue for normalizing (evaluating) types in rustdoc-generated docs (-Z normalize-docs) -Znormalize-docs Unstable rustdoc option: Normalize/evaluate types when generating docs A-associated-items Area: Associated items (types, constants & functions) C-tracking-issue Category: An issue tracking the progress of sth. like the implementation of an RFC S-tracking-design-concerns Status: There are blocking design concerns. S-tracking-impl-incomplete Status: The implementation is incomplete. T-rustdoc Relevant to the rustdoc team, which will review and decide on the PR/issue.
#82692 opened Mar 2, 2021 by jyn514
2 of 5 tasks
4
Tracking Issue for pointer metadata APIs C-tracking-issue Category: An issue tracking the progress of sth. like the implementation of an RFC S-tracking-design-concerns Status: There are blocking design concerns. T-lang Relevant to the language team T-libs-api Relevant to the library API team, which will review and decide on the PR/issue.
#81513 opened Jan 29, 2021 by KodrAus
1 of 3 tasks
171
Tracking Issue for the #[cmse_nonsecure_entry] attribute A-attributes Area: Attributes (`#[…]`, `#![…]`) A-codegen Area: Code generation 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-cmse_nonsecure_entry `#![feature(cmse_nonsecure_entry)]` O-Arm Target: 32-bit Arm processors (armv6, armv7, thumb...), including 64-bit Arm in AArch32 state S-tracking-design-concerns Status: There are blocking design concerns. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. T-lang Relevant to the language team
#75835 opened Aug 23, 2020 by hug-dev
1 of 2 tasks
10
Tracking Issue for pointer methods returning MaybeUninit<T> C-tracking-issue Category: An issue tracking the progress of sth. like the implementation of an RFC S-tracking-design-concerns Status: There are blocking design concerns.
#75402 opened Aug 11, 2020 by TimDiekmann
3 tasks
6
Tracking Issue for core::mem::variant_count 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-variant_count `#![feature(variant_count)]` S-tracking-design-concerns Status: There are blocking design concerns. T-lang Relevant to the language team T-libs-api Relevant to the library API team, which will review and decide on the PR/issue.
#73662 opened Jun 23, 2020 by doctorn
1 of 3 tasks
25
Tracking Issue for -Z src-hash-algorithm A-CLI Area: Command-line interface (CLI) to the compiler A-debuginfo Area: Debugging information in compiled programs (DWARF, PDB, etc.) 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 S-tracking-design-concerns Status: There are blocking design concerns. S-tracking-needs-summary Status: It's hard to tell what's been done and what hasn't! Someone should do some investigation. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#70401 opened Mar 25, 2020 by arlosi
1 of 3 tasks
5
Tracking Issue for layout information behind pointers A-allocators Area: Custom and system allocators A-raw-pointers Area: raw pointers, MaybeUninit, NonNull 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 Libs-Tracked Libs issues that are tracked on the team's project board. S-tracking-design-concerns Status: There are blocking design concerns. T-lang Relevant to the language team T-libs-api Relevant to the library API team, which will review and decide on the PR/issue.
#69835 opened Mar 8, 2020 by CAD97
2 tasks
28
Tracking issue for ..X, and ..=X (#![feature(half_open_range_patterns)]) A-patterns Relating to patterns and pattern matching 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 disposition-merge This issue / PR is in PFCP or FCP with a disposition to merge it. F-exclusive_range_pattern `#![feature(exclusive_range_pattern)]` F-half_open_range_patterns `#![feature(half_open_range_patterns)]` finished-final-comment-period The final comment period is finished for this PR / Issue. S-tracking-design-concerns Status: There are blocking design concerns. T-lang Relevant to the language team
#67264 opened Dec 12, 2019 by Centril
2 tasks done
@workingjubilee
46
Tracking issue for #![register_tool] A-attributes Area: Attributes (`#[…]`, `#![…]`) 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-register_tool `#![feature(register_tool)]` needs-fcp This change is insta-stable, or significant enough to need a team FCP to proceed. S-tracking-design-concerns Status: There are blocking design concerns. T-dev-tools Relevant to the dev-tools subteam, which will review and decide on the PR/issue. T-lang Relevant to the language team
#66079 opened Nov 4, 2019 by petrochenkov
64
Tracking issue for dual-proc-macros A-macros Area: All kinds of macros (custom derive, macro_rules!, proc macros, ..) A-proc-macros Area: Procedural macros 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 requires-nightly This issue requires a nightly compiler in some way. S-tracking-design-concerns Status: There are blocking design concerns. S-tracking-needs-summary Status: It's hard to tell what's been done and what hasn't! Someone should do some investigation. S-tracking-perma-unstable Status: The feature will stay unstable indefinitely. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#64671 opened Sep 21, 2019 by ehuss
@petrochenkov
4
Tracking issue for -Z binary-dep-depinfo A-CLI Area: Command-line interface (CLI) to the compiler 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 requires-nightly This issue requires a nightly compiler in some way. S-tracking-design-concerns Status: There are blocking design concerns. S-tracking-needs-summary Status: It's hard to tell what's been done and what hasn't! Someone should do some investigation. T-bootstrap Relevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap) T-cargo Relevant to the cargo team, which will review and decide on the PR/issue. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#63012 opened Jul 26, 2019 by ehuss
2 tasks
18
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