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Azhogin/async drop box support

A-attributesArea: Attributes (`#[…]`, `#![…]`)Area: Attributes (`#[…]`, `#![…]`)

A-LLVMArea: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues.Area: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues.

F-async_drop`#![feature(async_drop)]``#![feature(async_drop)]`

S-waiting-on-authorStatus: 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-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-libsRelevant to the library team, which will review and decide on the PR/issue.Relevant to the library team, which will review and decide on the PR/issue.

Status: Draft (not ready).

rust-lang/rustnumber 145316

#145316 In rust-lang/rust;

· azhogin opened on Aug 12, 2025

AsyncDrop not called when type is inside Box

A-boxArea: Our favorite opsem complicationArea: Our favorite opsem complication

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

F-async_drop`#![feature(async_drop)]``#![feature(async_drop)]`

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.

#143658 In rust-lang/rust;

· beepster4096 opened on Jul 8, 2025

segmentation fault when using async_drop feature

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

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

F-async_drop`#![feature(async_drop)]``#![feature(async_drop)]`

I-miscompileIssue: Correct Rust code lowers to incorrect machine codeIssue: Correct Rust code lowers to incorrect machine code

I-unsoundIssue: A soundness hole (worst kind of bug), see: https://en.wikipedia.org/wiki/SoundnessIssue: A soundness hole (worst kind of bug), see: https://en.wikipedia.org/wiki/Soundness

requires-nightlyThis issue requires a nightly compiler in some way.This issue requires a nightly compiler in some way.

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.

#142572 In rust-lang/rust;

· Sherlock-Holo opened on Jun 16, 2025

ICE: <code>broken MIR in AsyncDropGlue(</code>

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

F-async_drop`#![feature(async_drop)]``#![feature(async_drop)]`

I-ICEIssue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️

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.

#142560 In rust-lang/rust;

· matthiaskrgr opened on Jun 16, 2025

ICE: broken mir in FutureDropPollShim

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

F-async_drop`#![feature(async_drop)]``#![feature(async_drop)]`

I-ICEIssue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️

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.

#142559 In rust-lang/rust;

· matthiaskrgr opened on Jun 16, 2025

ICE: <code>queries overflow the depth limit</code> , ice when trying to get query map

A-parallel-compilerArea: parallel compilerArea: parallel compiler

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

F-async_drop`#![feature(async_drop)]``#![feature(async_drop)]`

I-ICEIssue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️

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.

#142159 In rust-lang/rust;

· matthiaskrgr opened on Jun 7, 2025

Tracking Issue for async drop codegen

A-async-awaitArea: Async & AwaitArea: 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-tracking-issueCategory: An issue tracking the progress of sth. like the implementation of an RFCCategory: An issue tracking the progress of sth. like the implementation of an RFC

F-async_drop`#![feature(async_drop)]``#![feature(async_drop)]`

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-langRelevant to the language teamRelevant to the language team

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

Status: Open.

#126482 In rust-lang/rust;

· zetanumbers opened on Jun 14, 2024