# Libs Meeting 2024-12-04 ###### tags: `Libs Meetings` `Minutes` **Meeting Link**: https://meet.jit.si/rust-libs-meeting-ujepnbwg2lzqgt6wvrndwimi **Attendees**: ... ## Agenda - Triage - Anything else? ## Triage ### FCPs 3 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\`* - (4 checkboxes left) [Amanieu (1)](https://rfcbot.rs/fcp/Amanieu), [joshtriplett (2)](https://rfcbot.rs/fcp/joshtriplett), [cuviper (1)](https://rfcbot.rs/fcp/cuviper), [the8472 (2)](https://rfcbot.rs/fcp/the8472), [thomcc (1)](https://rfcbot.rs/fcp/thomcc), [m-ou-se (2)](https://rfcbot.rs/fcp/m-ou-se) ### (Nominated) rust.tf/133170 *std: print a backtrace on stackoverflow* General uneasiness with relying on non-guranteed behavior and potentially turning crashes into hangs. Make this opt-in via ENV, add documentation link The 8472 to reply ### (Nominated) rust.tf/133819 *Run TLS destructors for main thread on UNIX platforms* related: https://github.com/rust-lang/rust/issues/28129 the 8472: when calling exit(), the other threads will suddenly get destroyed without running their tls destructors. ### (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/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). _Generated by [fully-automatic-rust-libs-team-triage-meeting-agenda-generator](https://github.com/rust-lang/libs-team/tree/main/tools/agenda-generator)_