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async code fails to compile with <code>-Znext-solver</code>

A-async-awaitArea: Async & Await Area: Async & Await

AsyncAwait-TriagedAsync-await issues that have been triaged during a working group meeting. Async-await issues that have been triaged during a working group meeting.

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

S-has-mcveStatus: 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-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-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.

WG-trait-system-refactorThe Rustc Trait System Refactor Initiative (-Znext-solver) The Rustc Trait System Refactor Initiative (-Znext-solver)

Status: Open.

#129865 In rust-lang/rust;

· 0xdeafbeef opened on Sep 1, 2024

rustc fails to prove <code>Send</code>ness for an <code>async</code> block where a <code>!Send</code> value is dropped before an <code>.await</code> point

A-async-awaitArea: Async & Await Area: Async & Await

A-coroutinesArea: Coroutines Area: Coroutines

AsyncAwait-TriagedAsync-await issues that have been triaged during a working group meeting. Async-await issues that have been triaged during a working group meeting.

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.

#128095 In rust-lang/rust;

· frank-king opened on Jul 23, 2024

recursive async function using <code>Box::new</code> results in cycle error

A-async-awaitArea: Async & Await Area: Async & Await

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

AsyncAwait-TriagedAsync-await issues that have been triaged during a working group meeting. Async-await issues that have been triaged during a working group meeting.

D-confusingDiagnostics: Confusing error or lint that should be reworked. Diagnostics: Confusing error or lint that should be reworked.

I-cycleIssue: A query cycle occurred while none was expected Issue: A query cycle occurred while none was expected

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.

WG-asyncWorking group: Async & await Working group: Async & await

Status: Open.

#122332 In rust-lang/rust;

· lcnr opened on Mar 11, 2024

type inference fails when using <code>async_fn_in_trait</code>

A-async-awaitArea: Async & Await Area: Async & Await

A-impl-traitArea: `impl Trait`. Universally / existentially quantified anonymous types with static dispatch. Area: `impl Trait`. Universally / existentially quantified anonymous types with static dispatch.

A-inferenceArea: Type inference Area: Type inference

AsyncAwait-TriagedAsync-await issues that have been triaged during a working group meeting. Async-await issues that have been triaged during a working group meeting.

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.

WG-asyncWorking group: Async & await Working group: Async & await

Status: Open.

#108362 In rust-lang/rust;

· LastExceed opened on Feb 22, 2023

<code>[async block]: Future&lt;Output = Ty&gt;</code> obligations don't provide inference guidance

A-async-awaitArea: Async & Await Area: Async & Await

A-inferenceArea: Type inference Area: Type inference

AsyncAwait-TriagedAsync-await issues that have been triaged during a working group meeting. Async-await issues that have been triaged during a working group meeting.

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

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.

#106527 In rust-lang/rust;

· compiler-errors opened on Jan 6, 2023

Unclear lifetime error in closure producing a future

A-async-awaitArea: Async & Await Area: Async & Await

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

A-lifetimesArea: Lifetimes / regions Area: Lifetimes / regions

AsyncAwait-PolishAsync-await issues that are part of the "polish" area Async-await issues that are part of the "polish" area

AsyncAwait-TriagedAsync-await issues that have been triaged during a working group meeting. Async-await issues that have been triaged during a working group meeting.

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.

#74497 In rust-lang/rust;

· 95th opened on Jul 19, 2020