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<code>__rust_alloc</code> can no longer be used to provide a custom allocator

A-allocatorsArea: Custom and system allocatorsArea: Custom and system allocators

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

P-criticalCritical priorityCritical priority

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: Closed (completed).

#139265 In rust-lang/rust;

· by anforowicz was closed on Apr 8, 2025

More precisely document <code>Global::deallocate()</code>'s safety.

A-allocatorsArea: Custom and system allocatorsArea: Custom and system allocators

S-waiting-on-borsStatus: Waiting on bors to run and complete tests. Bors will change the label on completion.Status: Waiting on bors to run and complete tests. Bors will change the label on completion.

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: Merged (completed).

rust-lang/rustnumber 137641

#137641 In rust-lang/rust;

· by kpreid was closed on Mar 3, 2025

 ·  

1.87.0

Tracking issue for release notes of #67521: Tracking issue for const <code>alloc::Layout</code>

A-allocatorsArea: Custom and system allocatorsArea: Custom and system allocators

A-const-evalArea: Constant evaluation, covers all const contexts (static, const fn, ...)Area: Constant evaluation, covers all const contexts (static, const fn, ...)

relnotesMarks issues that should be documented in the release notes of the next release.Marks issues that should be documented in the release notes of the next release.

relnotes-tracking-issueMarks issues tracking what text to put in release notes.Marks issues tracking what text to put in release notes.

T-libs-apiRelevant to the library API team, which will review and decide on the PR/issue.Relevant to the library API team, which will review and decide on the PR/issue.

Status: Closed (completed).

#134725 In rust-lang/rust;

· by rustbot was closed on Feb 15, 2025

 ·  

1.85.0

Memory fragmentation

A-allocatorsArea: Custom and system allocatorsArea: Custom and system allocators

C-discussionCategory: Discussion or questions that doesn't represent real issues.Category: Discussion or questions that doesn't represent real issues.

Status: Not planned (skipped).

#132634 In rust-lang/rust;

· by zqlpaopao was closed on Nov 5, 2024

runtime error: global allocator may not use TLS on arm64 macos

A-allocatorsArea: Custom and system allocatorsArea: Custom and system allocators

A-thread-localsArea: Thread local storage (TLS)Area: Thread local storage (TLS)

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: Not planned (skipped).

#126948 In rust-lang/rust;

· by MarinPostma was closed on Jun 27, 2024

Fix memory leaks in doctests?

A-allocatorsArea: Custom and system allocatorsArea: Custom and system allocators

E-mediumCall for participation: Medium difficulty. Experience needed to fix: Intermediate.Call for participation: Medium difficulty. Experience needed to fix: Intermediate.

E-mentorCall for participation: This issue has a mentor. Use #t-compiler/help on Zulip for discussion.Call for participation: This issue has a mentor. Use #t-compiler/help on Zulip for discussion.

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: Closed (completed).

#126067 In rust-lang/rust;

· by RalfJung was closed on Aug 6, 2024

LinkedList::remove forgets the allocator

A-allocatorsArea: Custom and system allocatorsArea: Custom and system allocators

A-collectionsArea: `std::collections`Area: `std::collections`

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

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: Closed (completed).

#125950 In rust-lang/rust;

· by xTachyon was closed on Jun 5, 2024

Add <code>fn into_raw_with_allocator</code> to Rc/Arc/Weak.

A-allocatorsArea: Custom and system allocatorsArea: Custom and system allocators

S-waiting-on-borsStatus: Waiting on bors to run and complete tests. Bors will change the label on completion.Status: Waiting on bors to run and complete tests. Bors will change the label on completion.

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: Merged (completed).

rust-lang/rustnumber 125093

#125093 In rust-lang/rust;

· by zachs18 was closed on May 20, 2024

 ·  

1.80.0

Generalize <code>fn allocator</code> for Rc/Arc.

A-allocatorsArea: Custom and system allocatorsArea: Custom and system allocators

S-waiting-on-borsStatus: Waiting on bors to run and complete tests. Bors will change the label on completion.Status: Waiting on bors to run and complete tests. Bors will change the label on completion.

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.

T-libs-apiRelevant to the library API team, which will review and decide on the PR/issue.Relevant to the library API team, which will review and decide on the PR/issue.

Status: Merged (completed).

rust-lang/rustnumber 124980

#124980 In rust-lang/rust;

· by zachs18 was closed on Jul 12, 2024

 ·  

1.81.0

BTreeMap uses Global allocator in it's PhantomData even when instantiated with custom Allocator

A-allocatorsArea: Custom and system allocatorsArea: Custom and system allocators

A-collectionsArea: `std::collections`Area: `std::collections`

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

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: Closed (completed).

#121797 In rust-lang/rust;

· by shamatar was closed on Mar 2, 2024

Make <code>(A)Rc</code>/<code>Weak</code> <code>allocator_api</code> APIs more consistent

A-allocatorsArea: Custom and system allocatorsArea: Custom and system allocators

S-waiting-on-reviewStatus: Awaiting review from the assignee but also interested parties.Status: Awaiting review from the assignee but also interested parties.

T-libs-apiRelevant to the library API team, which will review and decide on the PR/issue.Relevant to the library API team, which will review and decide on the PR/issue.

Status: Closed (abandoned).

rust-lang/rustnumber 119761

#119761 In rust-lang/rust;

· by zachs18 was closed on May 10, 2024

std's <code>From&lt;Box&lt;T, A&gt;&gt; for Rc&lt;T, A&gt;</code> implementation is unsound when <code>A</code> is a custom allocator.

A-allocatorsArea: Custom and system allocatorsArea: Custom and system allocators

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

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-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: Closed (completed).

#119749 In rust-lang/rust;

· by steffahn was closed on Jan 22, 2024