Skip to content
Navigation Menu
Toggle navigation
Sign in
Appearance settings
Platform
GitHub Copilot
Write better code with AI
GitHub Spark
New
Build and deploy intelligent apps
GitHub Models
New
Manage and compare prompts
GitHub Advanced Security
Find and fix vulnerabilities
Actions
Automate any workflow
Codespaces
Instant dev environments
Issues
Plan and track work
Code Review
Manage code changes
Discussions
Collaborate outside of code
Code Search
Find more, search less
Explore
Why GitHub
Documentation
GitHub Skills
Blog
Integrations
GitHub Marketplace
MCP Registry
View all features
Solutions
By company size
Enterprises
Small and medium teams
Startups
Nonprofits
By use case
App Modernization
DevSecOps
DevOps
CI/CD
View all use cases
By industry
Healthcare
Financial services
Manufacturing
Government
View all industries
View all solutions
Resources
Topics
AI
DevOps
Security
Software Development
View all
Explore
Learning Pathways
Events & Webinars
Ebooks & Whitepapers
Customer Stories
Partners
Executive Insights
Open Source
GitHub Sponsors
Fund open source developers
The ReadME Project
GitHub community articles
Repositories
Topics
Trending
Collections
Enterprise
Enterprise platform
AI-powered developer platform
Available add-ons
GitHub Advanced Security
Enterprise-grade security features
Copilot for business
Enterprise-grade AI features
Premium Support
Enterprise-grade 24/7 support
Pricing
state:open label:F-coroutines
Search code, repositories, users, issues, pull requests...
Search syntax tips
Provide feedback
Saved searches
Use saved searches to filter your results more quickly
Sign in
Sign up
Appearance settings
Resetting focus
You signed in with another tab or window.
Reload
to refresh your session.
You signed out in another tab or window.
Reload
to refresh your session.
You switched accounts on another tab or window.
Reload
to refresh your session.
Dismiss alert
{{ message }}
rust-lang
/
rust
Public
Notifications
You must be signed in to change notification settings
Fork
13.9k
Star
108k
Code
Issues
5k+
Pull requests
913
Actions
Projects
9
Security
Uh oh!
There was an error while loading.
Please reload this page
.
Insights
Additional navigation options
Code
Issues
Pull requests
Actions
Projects
Security
Insights
Issues
Search Issues
state
:
open
label
:
F-coroutines
state:open label:F-coroutines
Search
Labels
Milestones
New issue
Search results
Open
Closed
ICE：can't get the span of an arbitrary parsed attribute: Parsed(Coroutine(<source>:28:32: 28:44 (#0)))
C-bug
Category: This is a bug.
Category: This is a bug.
F-coroutines
`#![feature(coroutines)]`
`#![feature(coroutines)]`
F-stmt_expr_attributes
`#![feature(stmt_expr_attributes)]`
`#![feature(stmt_expr_attributes)]`
I-ICE
Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️
Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️
needs-triage
This issue may need triage. Remove it if it has been sufficiently triaged.
This issue may need triage. Remove it if it has been sufficiently triaged.
S-has-mcve
Status: A Minimal Complete and Verifiable Example has been found for this issue
Status: A Minimal Complete and Verifiable Example has been found for this issue
T-compiler
Relevant 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.
#146839
In rust-lang/rust;
·
rucsesec
opened
on Sep 21, 2025
Unsoundness due to 'static coroutines that yield non-'static values.
A-coroutines
Area: Coroutines
Area: Coroutines
A-lifetimes
Area: Lifetimes / regions
Area: Lifetimes / regions
C-bug
Category: This is a bug.
Category: This is a bug.
F-coroutines
`#![feature(coroutines)]`
`#![feature(coroutines)]`
I-unsound
Issue: A soundness hole (worst kind of bug), see: https://en.wikipedia.org/wiki/Soundness
Issue: A soundness hole (worst kind of bug), see: https://en.wikipedia.org/wiki/Soundness
requires-nightly
This issue requires a nightly compiler in some way.
This issue requires a nightly compiler in some way.
T-types
Relevant 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.
#144442
In rust-lang/rust;
·
theemathas
opened
on Jul 25, 2025
[E0521] coroutine should own upvars and assigning internal references to moved captures does not leak the references
A-coroutines
Area: Coroutines
Area: Coroutines
C-enhancement
Category: An issue proposing an enhancement or a PR with one.
Category: An issue proposing an enhancement or a PR with one.
F-coroutines
`#![feature(coroutines)]`
`#![feature(coroutines)]`
Status: Open.
#140132
In rust-lang/rust;
·
dingxiangfei2009
opened
on Apr 21, 2025
Initial <code>UnsafePinned</code> implementation [Part 2: Lowering]
A-coroutines
Area: Coroutines
Area: Coroutines
F-coroutines
`#![feature(coroutines)]`
`#![feature(coroutines)]`
F-unsafe_pinned
`#![feature(unsafe_pinned)]`
`#![feature(unsafe_pinned)]`
S-waiting-on-author
Status: This is awaiting some action (such as code changes or more information) from the author.
Status: This is awaiting some action (such as code changes or more information) from the author.
T-compiler
Relevant 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.
WG-trait-system-refactor
The Rustc Trait System Refactor Initiative (-Znext-solver)
The Rustc Trait System Refactor Initiative (-Znext-solver)
Status: Draft (not ready).
rust-lang/rust
number 139896
#139896
In rust-lang/rust;
·
Sky9x
opened
on Apr 16, 2025
ICE: yield: <code>itertools: .zip_eq() reached end of one iterator before the other</code>
C-bug
Category: This is a bug.
Category: This is a bug.
F-coroutines
`#![feature(coroutines)]`
`#![feature(coroutines)]`
I-ICE
Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️
Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️
S-bug-has-test
Status: This bug is tracked inside the repo by a `known-bug` 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.
Relevant to the compiler team, which will review and decide on the PR/issue.
Status: Open.
#139570
In rust-lang/rust;
·
matthiaskrgr
opened
on Apr 9, 2025
deadlock detected as we're unable to find a query cycle to break
A-parallel-compiler
Area: parallel compiler
Area: parallel compiler
C-bug
Category: This is a bug.
Category: This is a bug.
E-needs-mcve
Call for participation: This issue has a repro, but needs a Minimal Complete and Verifiable Example
Call for participation: This issue has a repro, but needs a Minimal Complete and Verifiable Example
F-coroutines
`#![feature(coroutines)]`
`#![feature(coroutines)]`
I-cycle
Issue: A query cycle occurred while none was expected
Issue: A query cycle occurred while none was expected
I-ICE
Issue: The compiler panicked, giving an Internal Compilation Error (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.
Relevant to the compiler team, which will review and decide on the PR/issue.
Status: Open.
#129912
In rust-lang/rust;
·
matthiaskrgr
opened
on Sep 2, 2024
regression on nightly-2024-03-16
A-coroutines
Area: Coroutines
Area: Coroutines
C-bug
Category: This is a bug.
Category: This is a bug.
F-coroutines
`#![feature(coroutines)]`
`#![feature(coroutines)]`
F-impl_trait_in_assoc_type
`#![feature(impl_trait_in_assoc_type)]`
`#![feature(impl_trait_in_assoc_type)]`
P-medium
Medium priority
Medium priority
regression-untriaged
Untriaged performance or correctness regression.
Untriaged performance or correctness regression.
S-has-mcve
Status: A Minimal Complete and Verifiable Example has been found for this issue
Status: A Minimal Complete and Verifiable Example has been found for this issue
T-compiler
Relevant 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.
#122618
In rust-lang/rust;
·
xxchan
opened
on Mar 17, 2024
E0308 for coroutines kinda cryptic
A-coroutines
Area: Coroutines
Area: Coroutines
A-diagnostics
Area: Messages for errors, warnings, and lints
Area: Messages for errors, warnings, and lints
F-coroutines
`#![feature(coroutines)]`
`#![feature(coroutines)]`
S-waiting-on-author
Status: This is awaiting some action (such as code changes or more information) from the author.
Status: This is awaiting some action (such as code changes or more information) from the author.
T-compiler
Relevant 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.
#118954
In rust-lang/rust;
·
matthiaskrgr
opened
on Dec 14, 2023
Tracking Issue for Coroutine Memory Usage
A-async-await
Area: Async & Await
Area: Async & Await
A-codegen
Area: Code generation
Area: Code generation
A-coroutines
Area: Coroutines
Area: Coroutines
AsyncAwait-Triaged
Async-await issues that have been triaged during a working group meeting.
Async-await issues that have been triaged during a working group meeting.
C-optimization
Category: An issue highlighting optimization opportunities or PRs implementing such
Category: An issue highlighting optimization opportunities or PRs implementing such
F-coroutines
`#![feature(coroutines)]`
`#![feature(coroutines)]`
I-heavy
Issue: Problems and improvements with respect to binary size of generated code.
Issue: Problems and improvements with respect to binary size of generated code.
metabug
Issues about issues themselves ("bugs about bugs")
Issues about issues themselves ("bugs about bugs")
T-compiler
Relevant 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.
#69826
In rust-lang/rust;
·
jonas-schievink
opened
on Mar 8, 2020
Yield reference in coroutine with GAT
A-associated-items
Area: Associated items (types, constants & functions)
Area: Associated items (types, constants & functions)
A-coroutines
Area: Coroutines
Area: Coroutines
A-GATs
Area: Generic associated types (GATs)
Area: Generic associated types (GATs)
C-feature-request
Category: A feature request, i.e: not implemented / a PR.
Category: A feature request, i.e: not implemented / a PR.
F-coroutines
`#![feature(coroutines)]`
`#![feature(coroutines)]`
GATs-triaged
Issues using the `generic_associated_types` feature that have been triaged
Issues using the `generic_associated_types` feature that have been triaged
T-lang
Relevant to the language team
Relevant to the language team
Status: Open.
#69268
In rust-lang/rust;
·
cynecx
opened
on Feb 18, 2020
Coroutines should be able to implement <code>for<'a> Coroutine<&'a mut T></code>
A-coroutines
Area: Coroutines
Area: Coroutines
C-enhancement
Category: An issue proposing an enhancement or a PR with one.
Category: An issue proposing an enhancement or a PR with one.
F-coroutines
`#![feature(coroutines)]`
`#![feature(coroutines)]`
T-compiler
Relevant 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.
#68923
In rust-lang/rust;
·
jonas-schievink
opened
on Feb 7, 2020
Keeping references to #[thread_local] statics is allowed across yields.
A-borrow-checker
Area: The borrow checker
Area: The borrow checker
A-coroutines
Area: Coroutines
Area: Coroutines
C-enhancement
Category: An issue proposing an enhancement or a PR with one.
Category: An issue proposing an enhancement or a PR with one.
F-coroutines
`#![feature(coroutines)]`
`#![feature(coroutines)]`
F-thread_local
`#![feature(thread_local)]`
`#![feature(thread_local)]`
I-unsound
Issue: A soundness hole (worst kind of bug), see: https://en.wikipedia.org/wiki/Soundness
Issue: A soundness hole (worst kind of bug), see: https://en.wikipedia.org/wiki/Soundness
P-medium
Medium priority
Medium priority
requires-nightly
This issue requires a nightly compiler in some way.
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.
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.
Relevant to the compiler team, which will review and decide on the PR/issue.
Status: Open.
#49682
In rust-lang/rust;
·
eddyb
opened
on Apr 5, 2018
You can’t perform that action at this time.