# Libs Meeting 2021-05-19

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

**Attendees**: ...

## Agenda

- [Open action items](https://hackmd.io/ovrbJj6CRduRgSA0Wzg2zg)
- Followup on lints about `as`: https://github.com/rust-lang/rust/pull/81789#issuecomment-843419006
- Triage
- Anything else?

## Triage

### FCPs

10 open T-libs FCPs:
<details><summary><a href="https://github.com/rust-lang/rfcs/issues?q=is%3Aopen+label%3AT-libs+label%3Aproposed-final-comment-period">1 <code>rust-lang/rfcs</code> FCPs</a></summary>

- [[merge 2509](https://github.com/rust-lang/rfcs/issues/2509#issuecomment-801294327)] *RFC: Introduce \`concat\_bytes!()\` to join \`\[u8\]\` and byte \`str\` analogous to \`concat!\` for \`str\`* - (2 checkboxes left)
</details>
<details><summary><a href="https://github.com/rust-lang/rust/issues?q=is%3Aopen+label%3AT-libs+label%3Aproposed-final-comment-period">9 <code>rust-lang/rust</code> FCPs</a></summary>

- [[merge 84612](https://github.com/rust-lang/rust/issues/84612#issuecomment-831905813)] *Use try\_reserve in Vec's io::Write* - (3 checkboxes left)
- [[merge 81050](https://github.com/rust-lang/rust/issues/81050#issuecomment-765341798)] *Stabilize core::task::ready!* - (0 checkboxes left)
- [[merge 84863](https://github.com/rust-lang/rust/issues/84863#issuecomment-842207695)] *Show test type during prints* - (4 checkboxes left)
- [[merge 85272](https://github.com/rust-lang/rust/issues/85272#issuecomment-842222445)] *Allow leading pipe in \`matches!()\` patterns.* - (4 checkboxes left)
- [[merge 78021](https://github.com/rust-lang/rust/issues/78021#issuecomment-842242151)] *Tracking Issue for VecDeque binary search functions* - (3 checkboxes left)
- [[merge 84111](https://github.com/rust-lang/rust/issues/84111#issuecomment-818005366)] *Stabilize \`impl From&lt;\[(K, V); N\]&gt; for HashMap\` (and friends)* - (1 checkboxes left)
- [[merge 84640](https://github.com/rust-lang/rust/issues/84640#issuecomment-829631948)] *Implement \`TryFrom&lt;char&gt;\` for \`u8\`* - (2 checkboxes left)
- [[merge 74372](https://github.com/rust-lang/rust/issues/74372#issuecomment-832838296)] *Tracking issue for WebAssembly SIMD support* - (3 checkboxes left)
- [[merge 84983](https://github.com/rust-lang/rust/issues/84983#issuecomment-833875250)] *Error table reformatting (includes bikeshed)* - (4 checkboxes left)
</details>
<p></p>

[Amanieu (4)](https://rfcbot.rs/fcp/Amanieu), [BurntSushi (0)](https://rfcbot.rs/fcp/BurntSushi), [dtolnay (1)](https://rfcbot.rs/fcp/dtolnay), [joshtriplett (3)](https://rfcbot.rs/fcp/joshtriplett), [m-ou-se (3)](https://rfcbot.rs/fcp/m-ou-se), [sfackler (8)](https://rfcbot.rs/fcp/sfackler), [yaahc (7)](https://rfcbot.rs/fcp/yaahc)

### Nominated

- [0 `rust-lang/rfcs` items](https://github.com/rust-lang/rfcs/issues?q=is%3Aopen+label%3AT-libs+label%3AI-nominated)
- [1 `rust-lang/rust` items](https://github.com/rust-lang/rust/issues?q=is%3Aopen+label%3AT-libs+label%3AI-nominated)
- [[84838](https://github.com/rust-lang/rust/pull/84838)] *implement \`Default\` for all arrays*

### Waiting on team

- [0 `rust-lang/rfcs` items](https://github.com/rust-lang/rfcs/issues?q=is%3Aopen+label%3AT-libs+label%3AS-waiting-on-team)
- [2 `rust-lang/rust` items](https://github.com/rust-lang/rust/issues?q=is%3Aopen+label%3AT-libs+label%3AS-waiting-on-team)
- [[76901](https://github.com/rust-lang/rust/pull/76901)] *Implement RFC 2500 Needle API (Part 1)*
- [[79965](https://github.com/rust-lang/rust/pull/79965)] *More ErrorKinds for common errnos*

### Needs decision

- [7 `rust-lang/rust` items](https://github.com/rust-lang/rust/issues?q=is%3Aopen+label%3AT-libs+label%3AI-needs-decision)
- [[25053](https://github.com/rust-lang/rust/issues/25053)] *UnsafeCell should implement the Copy trait*
- [[26951](https://github.com/rust-lang/rust/issues/26951)] *Abort on some large allocation requests, Panic on other*
- [[29494](https://github.com/rust-lang/rust/issues/29494)] *Command does not escape arguments as expected on windows*
- [[37868](https://github.com/rust-lang/rust/issues/37868)] *std::process::Command's current\_dir behaves differently on Unix and Windows, with respect to relative exe paths*
- [[56889](https://github.com/rust-lang/rust/issues/56889)] *Write::write\_all erroring when encountering Ok(0) interacts poorly with the contract of Write::write*
- [[59878](https://github.com/rust-lang/rust/issues/59878)] *Box\<\[T\]\> should have an IntoIter implementation.*
- [[62726](https://github.com/rust-lang/rust/issues/62726)] *Tracking issue for io\_slice\_advance*

## Actions

- [ ] Reply to all issues/PRs discussed in this meeting, or add them to the [open action items](https://hackmd.io/ovrbJj6CRduRgSA0Wzg2zg).

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