# Libs Meeting 2025-01-22

###### tags: `Libs Meetings` `Minutes`

**Meeting Link**: https://meet.jit.si/rust-libs-meeting-ujepnbwg2lzqgt6wvrndwimi
**Attendees**: ...

## Agenda

- Triage
- Anything else?

## Triage

### FCPs

4 rust-lang/rust T-libs FCPs

- merge rust.tf/115746 *Print thread ID in panic message* - (2 checkboxes left)
- merge rust.tf/132484 *unix: Relax escaping in \`Debug\` impl on \`Command\`* - (3 checkboxes left)
- merge rust.tf/133485 *\[discussion\]\[donotmerge\]: Copy Python implementation for \`float::div\_euclid\`* - (3 checkboxes left)
- close rust.tf/133170 *std: print a backtrace on stackoverflow* - (3 checkboxes left)

[joshtriplett (3)](https://rfcbot.rs/fcp/joshtriplett), [Amanieu (2)](https://rfcbot.rs/fcp/Amanieu), [cuviper (1)](https://rfcbot.rs/fcp/cuviper), [m-ou-se (2)](https://rfcbot.rs/fcp/m-ou-se), [the8472 (2)](https://rfcbot.rs/fcp/the8472), [thomcc (1)](https://rfcbot.rs/fcp/thomcc)

### (Backports) rust.tf/135709 *Temporarily bring back \`Rvalue::Len\`*

Not for libs, leaving for T-compiler.

### (Backports) rust.tf/135837 *Remove test panic from File::open*

### (Backports) rust.tf/135852 *Add \`AsyncFn\*\` to \`core\` prelude*

### (Nominated) rust.tf/133170 *std: print a backtrace on stackoverflow*

In FCP, unnominated.

### (Waiting on team) rust.tf/132146 *Add lint against (some) interior mutable consts*

Waiting on lang.

### (Waiting on team) rust.tf/133829 *AtomicT::fetch\_update\_infallible*

For libs-api.

### (Waiting on team) rust.tf/135340 *Add \`explicit\_extern\_abis\` Feature and Enforce Explicit ABIs*

### (Regressions) rust.tf/119560 *\`cargo test\` performance regression on Windows on version 1.75.0*

### (Regressions) rust.tf/53340 *Performance regression in tight loop since rust 1.25*

### (Regressions) rust.tf/112180 *assertion failed: key as usize != KEY\_SENTVAL in DragonFly BSD*

### (Regressions) rust.tf/124216 `P-medium` *Performance regression: rustc failed to optimize \`\_mm256\_avg\_epu8\` after 1.75.0*

### (Regressions) rust.tf/134713 `P-high` *\`std::ptr::swap\_nonoverlapping\` is not always untyped*

### (Regressions) rust.tf/130320 `P-medium` *stdlib code size increase in nightly\-2024\-09\-01 for aarch64\-linux\-android*

## Actions

- [ ] Reply to all issues/PRs discussed in this meeting, or add them to the [open action items](https://hackmd.io/Uehlc0qUQfWfvY1swYWRgQ).

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