---
# System prepended metadata

title: Libs Meeting 2021-01-27
tags: [Minutes, Libs Meetings]

---

# Libs Meeting 2021-01-27

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

**Attendees**: sfackler, dtolnay, Amanieu, JoshTriplett, KodrAus, Mara

## Agenda

- [Open action items](https://hackmd.io/ovrbJj6CRduRgSA0Wzg2zg)
- Libs-impl update
- Triage
- Anything else?

## Triage

### FCPs

11 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">3 <code>rust-lang/rfcs</code> FCPs</a></summary>

  - [[close 2944](https://github.com/rust-lang/rfcs/issues/2944#issuecomment-714795934)] *RFC: add the Freeze trait to libcore/libstd* - (2 checkboxes left)
  - [[close 2708](https://github.com/rust-lang/rfcs/issues/2708#issuecomment-724941427)] *Generic Pointer to Field* - (2 checkboxes left)
  - [[merge 2996](https://github.com/rust-lang/rfcs/issues/2996#issuecomment-747664240)] *adds async stream rfc* - (4 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">8 <code>rust-lang/rust</code> FCPs</a></summary>

  - [[merge 80962](https://github.com/rust-lang/rust/issues/80962#issuecomment-761024599)] *Stabilize remaining integer methods as \`const fn\`* - (2 checkboxes left)
  - [[close 80595](https://github.com/rust-lang/rust/issues/80595#issuecomment-753374897)] *\`impl PartialEq&lt;Punct&gt; for char\`; symmetry for #78636* - (3 checkboxes left)
  - [[merge 80841](https://github.com/rust-lang/rust/issues/80841#issuecomment-757339261)] *Add \`OsStr::display\` as a counterpart to \`Path::display\`* - (3 checkboxes left)
  - [[merge 81356](https://github.com/rust-lang/rust/issues/81356#issuecomment-766435475)] *libtest: allow multiple filters* - (3 checkboxes left)
  - [[merge 78880](https://github.com/rust-lang/rust/issues/78880#issuecomment-759882257)] *Add \`NotSupported\` to \`std::io::ErrorKind\`* - (3 checkboxes left)
  - [[merge 81050](https://github.com/rust-lang/rust/issues/81050#issuecomment-765341798)] *Stabilize core::task::ready!* - (4 checkboxes left)
  - [[merge 77704](https://github.com/rust-lang/rust/issues/77704#issuecomment-760056634)] *Implement indexing slices with pairs of core::ops::Bound&lt;usize&gt;* - (3 checkboxes left)
  - [[merge 73831](https://github.com/rust-lang/rust/issues/73831#issuecomment-765977022)] *Tracking Issue for \`partition\_point\`* - (2 checkboxes left)
</details>
<p></p>

[Amanieu (2)](https://rfcbot.rs/fcp/Amanieu), [BurntSushi (9)](https://rfcbot.rs/fcp/BurntSushi), [KodrAus (3)](https://rfcbot.rs/fcp/KodrAus), [dtolnay (2)](https://rfcbot.rs/fcp/dtolnay), [m-ou-se (4)](https://rfcbot.rs/fcp/m-ou-se), [sfackler (0)](https://rfcbot.rs/fcp/sfackler), [withoutboats (11)](https://rfcbot.rs/fcp/withoutboats)

### Nominated

- [1 `rust-lang/rfcs` items](https://github.com/rust-lang/rfcs/issues?q=is%3Aopen+label%3AT-libs+label%3AI-nominated)
  - [[2979](https://github.com/rust-lang/rfcs/pull/2979)] *\[RFC\]: Libs Team Governance*
- [7 `rust-lang/rust` items](https://github.com/rust-lang/rust/issues?q=is%3Aopen+label%3AT-libs+label%3AI-nominated)
  - [[66481](https://github.com/rust-lang/rust/issues/66481)] *Context and Waker might be accidentally \`Sync\`*
    - Ask the relevant WG to handle this.
  - [[72981](https://github.com/rust-lang/rust/pull/72981)] *Stabilize the backtrace feature.*
      - Action item recorded
  - [[74304](https://github.com/rust-lang/rust/pull/74304)] *Stabilize the Wake trait*
    FCP finished. Should be merged?
  - [[79245](https://github.com/rust-lang/rust/pull/79245)] *BTreeMap: remove Ord bound where it will never be needed*
    FCP finished. Should be merged?
  - [[80886](https://github.com/rust-lang/rust/pull/80886)] *Stabilize raw ref macros*
      - Action item recorded
  - [[80962](https://github.com/rust-lang/rust/pull/80962)] *Stabilize remaining integer methods as \`const fn\`*
  - [[81357](https://github.com/rust-lang/rust/issues/81357)] *File implementation on Windows has unsound methods*
    - Either disallow in OpenOptions.custom_flags, or abort after read() on ERROR_IO_INCOMPLETE.
    - Panic when this flag is set with custom_flags, and also abort after seek_read() returns that error code.
    - Action item recorded

### 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)
- [5 `rust-lang/rust` items](https://github.com/rust-lang/rust/issues?q=is%3Aopen+label%3AT-libs+label%3AS-waiting-on-team)
  - [[71780](https://github.com/rust-lang/rust/pull/71780)] *Implement String::remove\_matches*
  - [[76901](https://github.com/rust-lang/rust/pull/76901)] *Implement RFC 2500 Needle API (Part 1)*
  - [[77326](https://github.com/rust-lang/rust/pull/77326)] *Stabilize \`Option::unwrap\_none\` and \`Option::expect\_none\`*
  - [[77728](https://github.com/rust-lang/rust/pull/77728)] *Expose force\_quotes,*
  - [[80572](https://github.com/rust-lang/rust/pull/80572)] *Add a \`Result::ok\_or\_err\` method to extract a \`T\` from \`Result\<T, T\>\`*

### Needs decision

- [14 `rust-lang/rust` items](https://github.com/rust-lang/rust/issues?q=is%3Aopen+label%3AT-libs+label%3AI-needs-decision)
  - [[21319](https://github.com/rust-lang/rust/issues/21319)] *Consider making std::thread::Builder reusable*
  - [[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*
  - [[39081](https://github.com/rust-lang/rust/issues/39081)] *\`std::env::temp\_dir\` should return env var XDG\_RUNTIME\_DIR under Linux if declared*
  - [[39186](https://github.com/rust-lang/rust/issues/39186)] *Document that std::os::unix::process::CommandExt.uid() triggers setgroups(0,0)*
  - [[42412](https://github.com/rust-lang/rust/issues/42412)] *Incorporate @raphlinus' container cheat sheet into the std::collections module docs*
  - [[42951](https://github.com/rust-lang/rust/issues/42951)] *Spec request. Hasher: is write\_u32 eqivalent to 4 calls of write\_u8?*
  - [[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.*
  - [[60880](https://github.com/rust-lang/rust/issues/60880)] *Should Thumb bugs get increased visibility, e.g. Tier 1 status?*
  - [[62726](https://github.com/rust-lang/rust/issues/62726)] *Tracking issue for io\_slice\_advance*
  - [[79490](https://github.com/rust-lang/rust/issues/79490)] *Whether floating point value Display should adhere to IEEE standard?*

## Actions

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

