Skip to content

Issues: rust-lang/rust

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Clear current search query, filters, and sorts
11 Open 26 Closed
11 Open 26 Closed
Author
Filter by author
Loading
Label
Filter by label
Loading
Use alt + click/return to exclude labels
or ⇧ + click/return for logical OR
Projects
Filter by project
Loading
Milestones
Filter by milestone
Loading
Assignee
Filter by who’s assigned
Sort
Sort by
Newest Oldest Most commented Least commented Recently updated Least recently updated Best match
Most reactions
👍 👎 😄 🎉 😕 ❤️ 🚀 👀

Issues list

Document why we allow escaping bound vars in LTA norm F-lazy_type_alias `#![feature(lazy_type_alias)]` S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#141363 opened May 21, 2025 by BoxyUwU Loading…
@lcnr
2
[WIP] Expand free alias types during variance computation F-lazy_type_alias `#![feature(lazy_type_alias)]` perf-regression Performance regression. rla-silenced Silences rust-log-analyzer postings to the PR it's added on. S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. T-types Relevant to the types team, which will review and decide on the PR/issue.
#141030 opened May 15, 2025 by fmease • Draft
1
6
Expand free alias types when computing implied outlives-bounds F-lazy_type_alias `#![feature(lazy_type_alias)]` S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. T-types Relevant to the types team, which will review and decide on the PR/issue.
#141007 opened May 14, 2025 by fmease • Draft
@oli-obk
2
Free type aliases should not require all generic parameters to be used A-variance Area: Variance (https://doc.rust-lang.org/nomicon/subtyping.html) C-bug Category: This is a bug. F-lazy_type_alias `#![feature(lazy_type_alias)]` T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. T-types Relevant to the types team, which will review and decide on the PR/issue.
#140230 opened Apr 24, 2025 by BoxyUwU
1
@fmease
11
ICE: mid > len C-bug Category: This is a bug. F-lazy_type_alias `#![feature(lazy_type_alias)]` F-where_clause_attrs `#![feature(where_clause_attrs)]` I-ICE Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️ T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#138010 opened Mar 4, 2025 by matthiaskrgr
1
@stuuupidcat
4
crash: lazy type alias: stack overflow C-bug Category: This is a bug. F-lazy_type_alias `#![feature(lazy_type_alias)]` I-crash Issue: The compiler crashes (SIGSEGV, SIGABRT, etc). Use I-ICE instead when the compiler panics. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#131994 opened Oct 21, 2024 by matthiaskrgr
1
ICE: Failed to normalize Alias(Weak, AliasTy { with feature(lazy_type_alias) C-bug Category: This is a bug. F-lazy_type_alias `#![feature(lazy_type_alias)]` I-ICE Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️ requires-incomplete-features This issue requires the use of incomplete features. S-bug-has-test Status: This bug is tracked inside the repo by a `known-bug` test. S-has-bisection Status: A bisection has been found for this issue T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#127351 opened Jul 5, 2024 by Naserume
2
lazy_type_alias: trait bound no longer satisified C-bug Category: This is a bug. F-lazy_type_alias `#![feature(lazy_type_alias)]` fixed-by-next-solver Fixed by the next-generation trait solver, `-Znext-solver`. requires-nightly This issue requires a nightly compiler in some way. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#114218 opened Jul 29, 2023 by matthiaskrgr
5
lazy_type_alias: type is forbidden as the type of a const generic parameter C-bug Category: This is a bug. F-lazy_type_alias `#![feature(lazy_type_alias)]` requires-nightly This issue requires a nightly compiler in some way. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#114217 opened Jul 29, 2023 by matthiaskrgr
1
@GuillaumeGomez
2
ICE: InstanceDef::Virtual (Virtual(DefId(..))) is for direct calls only lazy_type_alias + mono items C-bug Category: This is a bug. F-lazy_type_alias `#![feature(lazy_type_alias)]` I-ICE Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️ requires-nightly This issue requires a nightly compiler in some way. S-bug-has-test Status: This bug is tracked inside the repo by a `known-bug` test. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#114198 opened Jul 29, 2023 by matthiaskrgr
3
Tracking issue for lazy type aliases A-maybe-future-edition Something we may consider for a future edition. 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-lazy_type_alias `#![feature(lazy_type_alias)]` S-tracking-impl-incomplete Status: The implementation is incomplete. S-tracking-needs-migration-lint Status: This item needs a migration lint. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. T-types Relevant to the types team, which will review and decide on the PR/issue.
#112792 opened Jun 19, 2023 by GuillaumeGomez
2 of 6 tasks
@fmease
5
ProTip! Type g p on any issue or pull request to go back to the pull request listing page.