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lolbinarycat
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either shift+click the Summary button,
or use the _ key.

this collapses everything,
including (inherent) impl blocks.

no need for a special "expand all impl blocks"
method, as impl blocks are expanded during regular "expand all".
doing "expand all" -> "collapse all" will always
result in only impl blocks being expaned.

not sure the best way to add a GUI test.

fixes #134429

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rustbot commented May 27, 2025

r? @notriddle

rustbot has assigned @notriddle.
They will have a look at your PR within the next two weeks and either review your PR or reassign to another reviewer.

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@rustbot rustbot added S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. T-rustdoc Relevant to the rustdoc team, which will review and decide on the PR/issue. T-rustdoc-frontend Relevant to the rustdoc-frontend team, which will review and decide on the web UI/UX output. labels May 27, 2025
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rustbot commented May 27, 2025

Some changes occurred in HTML/CSS/JS.

cc @GuillaumeGomez, @jsha, @lolbinarycat

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@GuillaumeGomez
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I'm neutral about this. I don't see the need but I suppose if someone opened the issue, there is one...

cc @rust-lang/rustdoc-frontend

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It's a small improvement, but I think it is helpful, especially for internal docs. For example, if I had this, I might not have made the mistake of initially adding BufReader::peek to the wrong impl block. The feature also seems very trivial to implement and maintain.

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It wouldn't be hard to test the _ keyboard shortcut using the GUI test runner (it's the same way the - keyboard shortcut is tested).

Anyway, 👍 this feature.

collapseAllDocs();
collapseAllDocs(false);
break;
case "_":
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I don't think adding a new key to handle it is a good idea. What you suggested with shift+minus sounds like a better approach.

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doesn't shift + minus send _ on a standard US keyboard? or is there something I don't know about JS events?

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It does, yes. getVirtualKey uses event.key, which sends the printable representation of the text.

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I don't have opinion on the feature, however I think we should definitely talk about the new key binding (_).

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I think it's also worth asking if we should make a way of doing this on mobile, but i don't see an easy way, it seems like we would have to manually implement a double tap delay or something similar.

@GuillaumeGomez GuillaumeGomez removed the T-rustdoc Relevant to the rustdoc team, which will review and decide on the PR/issue. label Jun 16, 2025
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@rfcbot merge

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rfcbot commented Jun 16, 2025

Team member @GuillaumeGomez has proposed to merge this. The next step is review by the rest of the tagged team members:

No concerns currently listed.

Once a majority of reviewers approve (and at most 2 approvals are outstanding), this will enter its final comment period. If you spot a major issue that hasn't been raised at any point in this process, please speak up!

See this document for info about what commands tagged team members can give me.

@rfcbot rfcbot added proposed-final-comment-period Proposed to merge/close by relevant subteam, see T-<team> label. Will enter FCP once signed off. disposition-merge This issue / PR is in PFCP or FCP with a disposition to merge it. labels Jun 16, 2025
either shift+click the Summary button,
or use the `_` key.

this collapses everything,
including (inherent) impl blocks.

no need for a special "expand all impl blocks"
method, as impl blocks are expanded during regular
"expand all".
doing "expand all" -> "collapse all" will always
result in only impl blocks being expaned.

some of the html is split up a bit awkwardly to
try to avoid introducing new whitespaces nodes,
which could affect display.

Co-authored-by: Guillaume Gomez <[email protected]>
@lolbinarycat lolbinarycat force-pushed the rustdoc-collapse-impl-134429 branch from 8861980 to b676f55 Compare June 16, 2025 21:54
@rfcbot rfcbot added final-comment-period In the final comment period and will be merged soon unless new substantive objections are raised. and removed proposed-final-comment-period Proposed to merge/close by relevant subteam, see T-<team> label. Will enter FCP once signed off. labels Jul 14, 2025
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rfcbot commented Jul 14, 2025

🔔 This is now entering its final comment period, as per the review above. 🔔

@rfcbot rfcbot added finished-final-comment-period The final comment period is finished for this PR / Issue. and removed final-comment-period In the final comment period and will be merged soon unless new substantive objections are raised. labels Jul 24, 2025
@rfcbot rfcbot added the to-announce Announce this issue on triage meeting label Jul 24, 2025
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rfcbot commented Jul 24, 2025

The final comment period, with a disposition to merge, as per the review above, is now complete.

As the automated representative of the governance process, I would like to thank the author for their work and everyone else who contributed.

This will be merged soon.

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Thanks!

@bors r+ rollup

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bors commented Jul 25, 2025

📌 Commit b676f55 has been approved by GuillaumeGomez

It is now in the queue for this repository.

@bors bors added S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Jul 25, 2025
tgross35 added a commit to tgross35/rust that referenced this pull request Jul 26, 2025
…-134429, r=GuillaumeGomez

rustdoc: add ways of collapsing all impl blocks

either shift+click the Summary button,
or use the `_` key.

this collapses everything,
including (inherent) impl blocks.

no need for a special "expand all impl blocks"
method, as impl blocks are expanded during regular "expand all".
doing "expand all" -> "collapse all" will always
result in only impl blocks being expaned.

not sure the best way to add a GUI test.

fixes rust-lang#134429
tgross35 added a commit to tgross35/rust that referenced this pull request Jul 26, 2025
…-134429, r=GuillaumeGomez

rustdoc: add ways of collapsing all impl blocks

either shift+click the Summary button,
or use the `_` key.

this collapses everything,
including (inherent) impl blocks.

no need for a special "expand all impl blocks"
method, as impl blocks are expanded during regular "expand all".
doing "expand all" -> "collapse all" will always
result in only impl blocks being expaned.

not sure the best way to add a GUI test.

fixes rust-lang#134429
bors added a commit that referenced this pull request Jul 26, 2025
Rollup of 9 pull requests

Successful merges:

 - #140871 (Don't lint against named labels in `naked_asm!`)
 - #141663 (rustdoc: add ways of collapsing all impl blocks)
 - #143272 (Upgrade the `fortanix-sgx-abi` dependency)
 - #143585 (`loop_match`: suggest extracting to a `const` item)
 - #143698 (Fix unused_parens false positive)
 - #143859 (Guarantee 8 bytes of alignment in Thread::into_raw)
 - #144042 (Verify llvm-needs-components are not empty and match the --target value)
 - #144160 (tests: debuginfo: Work around or disable broken tests on powerpc)
 - #144431 (Disable has_reliable_f128_math on musl targets)

r? `@ghost`
`@rustbot` modify labels: rollup
bors added a commit that referenced this pull request Jul 26, 2025
Rollup of 9 pull requests

Successful merges:

 - #140871 (Don't lint against named labels in `naked_asm!`)
 - #141663 (rustdoc: add ways of collapsing all impl blocks)
 - #143272 (Upgrade the `fortanix-sgx-abi` dependency)
 - #143585 (`loop_match`: suggest extracting to a `const` item)
 - #143698 (Fix unused_parens false positive)
 - #143859 (Guarantee 8 bytes of alignment in Thread::into_raw)
 - #144160 (tests: debuginfo: Work around or disable broken tests on powerpc)
 - #144412 (Small cleanup: Use LocalKey<Cell> methods more)
 - #144431 (Disable has_reliable_f128_math on musl targets)

r? `@ghost`
`@rustbot` modify labels: rollup
@bors bors merged commit 7abb4e2 into rust-lang:master Jul 26, 2025
10 checks passed
@rustbot rustbot added this to the 1.90.0 milestone Jul 26, 2025
rust-timer added a commit that referenced this pull request Jul 26, 2025
Rollup merge of #141663 - lolbinarycat:rustdoc-collapse-impl-134429, r=GuillaumeGomez

rustdoc: add ways of collapsing all impl blocks

either shift+click the Summary button,
or use the `_` key.

this collapses everything,
including (inherent) impl blocks.

no need for a special "expand all impl blocks"
method, as impl blocks are expanded during regular "expand all".
doing "expand all" -> "collapse all" will always
result in only impl blocks being expaned.

not sure the best way to add a GUI test.

fixes #134429
github-actions bot pushed a commit to model-checking/verify-rust-std that referenced this pull request Jul 30, 2025
Rollup of 9 pull requests

Successful merges:

 - rust-lang#140871 (Don't lint against named labels in `naked_asm!`)
 - rust-lang#141663 (rustdoc: add ways of collapsing all impl blocks)
 - rust-lang#143272 (Upgrade the `fortanix-sgx-abi` dependency)
 - rust-lang#143585 (`loop_match`: suggest extracting to a `const` item)
 - rust-lang#143698 (Fix unused_parens false positive)
 - rust-lang#143859 (Guarantee 8 bytes of alignment in Thread::into_raw)
 - rust-lang#144160 (tests: debuginfo: Work around or disable broken tests on powerpc)
 - rust-lang#144412 (Small cleanup: Use LocalKey<Cell> methods more)
 - rust-lang#144431 (Disable has_reliable_f128_math on musl targets)

r? `@ghost`
`@rustbot` modify labels: rollup
@apiraino apiraino removed the to-announce Announce this issue on triage meeting label Aug 14, 2025
wip-sync pushed a commit to NetBSD/pkgsrc-wip that referenced this pull request Sep 20, 2025
Pkgsrc changes:
 * Adjust patches to adapt to upstream changes and new versions.
 * assosicated checksums

Upstream changes relative to 1.89.0:

Version 1.90 (2025-09-18)
==========================

Language
--------
- [Split up the `unknown_or_malformed_diagnostic_attributes` lint]
  (rust-lang/rust#140717). This lint has
  been split up into four finer-grained lints, with
  `unknown_or_malformed_diagnostic_attributes` now being the lint
  group that contains these lints:
    1. `unknown_diagnostic_attributes`: unknown to the current compiler
    2. `misplaced_diagnostic_attributes`: placed on the wrong item
    3. `malformed_diagnostic_attributes`: malformed attribute syntax or options
    4. `malformed_diagnostic_format_literals`: malformed format string literal
- [Allow constants whose final value has references to mutable/external
  memory, but reject such constants as patterns]
  (rust-lang/rust#140942)
- [Allow volatile access to non-Rust memory, including address 0]
  (rust-lang/rust#141260)

Compiler
--------
- [Use `lld` by default on `x86_64-unknown-linux-gnu`]
  (rust-lang/rust#140525).
- [Tier 3 `musl` targets now link dynamically by default]
  (rust-lang/rust#144410). Affected targets:
    - `mips64-unknown-linux-muslabi64`
    - `powerpc64-unknown-linux-musl`
    - `powerpc-unknown-linux-musl`
    - `powerpc-unknown-linux-muslspe`
    - `riscv32gc-unknown-linux-musl`
    - `s390x-unknown-linux-musl`
    - `thumbv7neon-unknown-linux-musleabihf`

Platform Support
----------------
- [Demote `x86_64-apple-darwin` to Tier 2 with host tools]
  (rust-lang/rust#145252)

Refer to Rust's [platform support page][platform-support-doc]
for more information on Rust's tiered platform support.

[platform-support-doc]: https://doc.rust-lang.org/rustc/platform-support.html

Libraries
---------
- [Stabilize `u*::{checked,overflowing,saturating,wrapping}_sub_signed`]
  (rust-lang/rust#126043)
- [Allow comparisons between `CStr`, `CString`, and `Cow<CStr>`]
  (rust-lang/rust#137268)
- [Remove some unsized tuple impls since unsized tuples can't be constructed]
  (rust-lang/rust#138340)
- [Set `MSG_NOSIGNAL` for `UnixStream`]
  (rust-lang/rust#140005)
- [`proc_macro::Ident::new` now supports `$crate`.]
  (rust-lang/rust#141996)
- [Guarantee the pointer returned from `Thread::into_raw` has at
  least 8 bytes of alignment]
  (rust-lang/rust#143859)

Stabilized APIs
---------------
- [`u{n}::checked_sub_signed`]
  (https://doc.rust-lang.org/stable/std/primitive.usize.html#method.checked_sub_signed)
- [`u{n}::overflowing_sub_signed`]
  (https://doc.rust-lang.org/stable/std/primitive.usize.html#method.overflowing_sub_signed)
- [`u{n}::saturating_sub_signed`]
  (https://doc.rust-lang.org/stable/std/primitive.usize.html#method.saturating_sub_signed)
- [`u{n}::wrapping_sub_signed`]
  (https://doc.rust-lang.org/stable/std/primitive.usize.html#method.wrapping_sub_signed)
- [`impl Copy for IntErrorKind`]
  (https://doc.rust-lang.org/stable/std/num/enum.IntErrorKind.html#impl-Copy-for-IntErrorKind)
- [`impl Hash for IntErrorKind`]
  (https://doc.rust-lang.org/stable/std/num/enum.IntErrorKind.html#impl-Hash-for-IntErrorKind)
- [`impl PartialEq<&CStr> for CStr`]
  (https://doc.rust-lang.org/stable/std/ffi/struct.CStr.html#impl-PartialEq%3C%26CStr%3E-for-CStr)
- [`impl PartialEq<CString> for CStr`]
  (https://doc.rust-lang.org/stable/std/ffi/struct.CStr.html#impl-PartialEq%3CCString%3E-for-CStr)
- [`impl PartialEq<Cow<CStr>> for CStr`]
  (https://doc.rust-lang.org/stable/std/ffi/struct.CStr.html#impl-PartialEq%3CCow%3C'_,+CStr%3E%3E-for-CStr)
- [`impl PartialEq<&CStr> for CString`]
  (https://doc.rust-lang.org/stable/std/ffi/struct.CString.html#impl-PartialEq%3C%26CStr%3E-for-CString)
- [`impl PartialEq<CStr> for CString`]
  (https://doc.rust-lang.org/stable/std/ffi/struct.CString.html#impl-PartialEq%3CCStr%3E-for-CString)
- [`impl PartialEq<Cow<CStr>> for CString`]
  (https://doc.rust-lang.org/stable/std/ffi/struct.CString.html#impl-PartialEq%3CCow%3C'_,+CStr%3E%3E-for-CString)
- [`impl PartialEq<&CStr> for Cow<CStr>`]
  (https://doc.rust-lang.org/stable/std/borrow/enum.Cow.html#impl-PartialEq%3C%26CStr%3E-for-Cow%3C'_,+CStr%3E)
- [`impl PartialEq<CStr> for Cow<CStr>`]
  (https://doc.rust-lang.org/stable/std/borrow/enum.Cow.html#impl-PartialEq%3CCStr%3E-for-Cow%3C'_,+CStr%3E)
- [`impl PartialEq<CString> for Cow<CStr>`]
  (https://doc.rust-lang.org/stable/std/borrow/enum.Cow.html#impl-PartialEq%3CCString%3E-for-Cow%3C'_,+CStr%3E)

These previously stable APIs are now stable in const contexts:

- [`<[T]>::reverse`]
  (https://doc.rust-lang.org/stable/std/primitive.slice.html#method.reverse)
- [`f32::floor`]
  (https://doc.rust-lang.org/stable/std/primitive.f32.html#method.floor)
- [`f32::ceil`]
  (https://doc.rust-lang.org/stable/std/primitive.f32.html#method.ceil)
- [`f32::trunc`]
  (https://doc.rust-lang.org/stable/std/primitive.f32.html#method.trunc)
- [`f32::fract`]
  (https://doc.rust-lang.org/stable/std/primitive.f32.html#method.fract)
- [`f32::round`]
  (https://doc.rust-lang.org/stable/std/primitive.f32.html#method.round)
- [`f32::round_ties_even`]
  (https://doc.rust-lang.org/stable/std/primitive.f32.html#method.round_ties_even)
- [`f64::floor`]
  (https://doc.rust-lang.org/stable/std/primitive.f64.html#method.floor)
- [`f64::ceil`]
  (https://doc.rust-lang.org/stable/std/primitive.f64.html#method.ceil)
- [`f64::trunc`]
  (https://doc.rust-lang.org/stable/std/primitive.f64.html#method.trunc)
- [`f64::fract`]
  (https://doc.rust-lang.org/stable/std/primitive.f64.html#method.fract)
- [`f64::round`]
  (https://doc.rust-lang.org/stable/std/primitive.f64.html#method.round)
- [`f64::round_ties_even`]
  (https://doc.rust-lang.org/stable/std/primitive.f64.html#method.round_ties_even)

Cargo
-----
- [Add `http.proxy-cainfo` config for proxy certs]
  (rust-lang/cargo#15374)
- [Use `gix` for `cargo package`]
  (rust-lang/cargo#15534)
- [feat(publish): Stabilize multi-package publishing]
  (rust-lang/cargo#15636)

Rustdoc
-----
- [Add ways to collapse all impl blocks]
  (rust-lang/rust#141663). Previously the
  "Summary" button and "-" keyboard shortcut would never collapse
  `impl` blocks, now they do when shift is held
- [Display unsafe attributes with `unsafe()` wrappers]
  (rust-lang/rust#143662)

Compatibility Notes
-------------------
- [Use `lld` by default on `x86_64-unknown-linux-gnu`]
  (rust-lang/rust#140525).
  See also <https://blog.rust-lang.org/2025/09/01/rust-lld-on-1.90.0-stable/>.
- [Make `core::iter::Fuse`'s `Default` impl construct `I::default()`
  internally as promised in the docs instead of always being empty]
  (rust-lang/rust#140985)
- [Set `MSG_NOSIGNAL` for `UnixStream`]
  (rust-lang/rust#140005) This may change
  program behavior but results in the same behavior as other
  primitives (e.g., stdout, network sockets).  Programs relying on
  signals to terminate them should update handling of sockets to
  handle errors on write by exiting.
- [On Unix `std::env::home_dir` will use the fallback if the `HOME`
  environment variable is empty]
  (rust-lang/rust#141840)
- We now [reject unsupported `extern "{abi}"`s consistently in all
  positions] (rust-lang/rust#142134). This
  primarily affects the use of implementing traits on an `extern
  "{abi}"` function pointer, like `extern "stdcall" fn()`, on a
  platform that doesn't support that, like aarch64-unknown-linux-gnu.
  Direct usage of these unsupported ABI strings by declaring or
  defining functions was already rejected, so this is only a change
  for consistency.
- [const-eval: error when initializing a static writes to that static]
  (rust-lang/rust#143084)
- [Check that the `proc_macro_derive` macro has correct arguments
  when applied to the crate root]
  (rust-lang/rust#143607)
tmeijn pushed a commit to tmeijn/dotfiles that referenced this pull request Sep 24, 2025
This MR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [rust](https://github.com/rust-lang/rust) | minor | `1.89.0` -> `1.90.0` |

MR created with the help of [el-capitano/tools/renovate-bot](https://gitlab.com/el-capitano/tools/renovate-bot).

**Proposed changes to behavior should be submitted there as MRs.**

---

### Release Notes

<details>
<summary>rust-lang/rust (rust)</summary>

### [`v1.90.0`](https://github.com/rust-lang/rust/blob/HEAD/RELEASES.md#Version-1900-2025-09-18)

[Compare Source](rust-lang/rust@1.89.0...1.90.0)

\===========================

<a id="1.90-Language"></a>

## Language

- [Split up the `unknown_or_malformed_diagnostic_attributes` lint](rust-lang/rust#140717). This lint has been split up into four finer-grained lints, with `unknown_or_malformed_diagnostic_attributes` now being the lint group that contains these lints:
  1. `unknown_diagnostic_attributes`: unknown to the current compiler
  2. `misplaced_diagnostic_attributes`: placed on the wrong item
  3. `malformed_diagnostic_attributes`: malformed attribute syntax or options
  4. `malformed_diagnostic_format_literals`: malformed format string literal
- [Allow constants whose final value has references to mutable/external memory, but reject such constants as patterns](rust-lang/rust#140942)
- [Allow volatile access to non-Rust memory, including address 0](rust-lang/rust#141260)

<a id="1.90-Compiler"></a>

## Compiler

- [Use `lld` by default on `x86_64-unknown-linux-gnu`](rust-lang/rust#140525).
- [Tier 3 `musl` targets now link dynamically by default](rust-lang/rust#144410). Affected targets:
  - `mips64-unknown-linux-muslabi64`
  - `powerpc64-unknown-linux-musl`
  - `powerpc-unknown-linux-musl`
  - `powerpc-unknown-linux-muslspe`
  - `riscv32gc-unknown-linux-musl`
  - `s390x-unknown-linux-musl`
  - `thumbv7neon-unknown-linux-musleabihf`

<a id="1.90-Platform-Support"></a>

## Platform Support

- [Demote `x86_64-apple-darwin` to Tier 2 with host tools](rust-lang/rust#145252)

Refer to Rust's [platform support page][platform-support-doc]
for more information on Rust's tiered platform support.

[platform-support-doc]: https://doc.rust-lang.org/rustc/platform-support.html

<a id="1.90-Libraries"></a>

## Libraries

- [Stabilize `u*::{checked,overflowing,saturating,wrapping}_sub_signed`](rust-lang/rust#126043)
- [Allow comparisons between `CStr`, `CString`, and `Cow<CStr>`](rust-lang/rust#137268)
- [Remove some unsized tuple impls since unsized tuples can't be constructed](rust-lang/rust#138340)
- [Set `MSG_NOSIGNAL` for `UnixStream`](rust-lang/rust#140005)
- [`proc_macro::Ident::new` now supports `$crate`.](rust-lang/rust#141996)
- [Guarantee the pointer returned from `Thread::into_raw` has at least 8 bytes of alignment](rust-lang/rust#143859)

<a id="1.90-Stabilized-APIs"></a>

## Stabilized APIs

- [`u{n}::checked_sub_signed`](https://doc.rust-lang.org/stable/std/primitive.usize.html#method.checked_sub_signed)
- [`u{n}::overflowing_sub_signed`](https://doc.rust-lang.org/stable/std/primitive.usize.html#method.overflowing_sub_signed)
- [`u{n}::saturating_sub_signed`](https://doc.rust-lang.org/stable/std/primitive.usize.html#method.saturating_sub_signed)
- [`u{n}::wrapping_sub_signed`](https://doc.rust-lang.org/stable/std/primitive.usize.html#method.wrapping_sub_signed)
- [`impl Copy for IntErrorKind`](https://doc.rust-lang.org/stable/std/num/enum.IntErrorKind.html#impl-Copy-for-IntErrorKind)
- [`impl Hash for IntErrorKind`](https://doc.rust-lang.org/stable/std/num/enum.IntErrorKind.html#impl-Hash-for-IntErrorKind)
- [`impl PartialEq<&CStr> for CStr`](https://doc.rust-lang.org/stable/std/ffi/struct.CStr.html#impl-PartialEq%3C%26CStr%3E-for-CStr)
- [`impl PartialEq<CString> for CStr`](https://doc.rust-lang.org/stable/std/ffi/struct.CStr.html#impl-PartialEq%3CCString%3E-for-CStr)
- [`impl PartialEq<Cow<CStr>> for CStr`](https://doc.rust-lang.org/stable/std/ffi/struct.CStr.html#impl-PartialEq%3CCow%3C'_,+CStr%3E%3E-for-CStr)
- [`impl PartialEq<&CStr> for CString`](https://doc.rust-lang.org/stable/std/ffi/struct.CString.html#impl-PartialEq%3C%26CStr%3E-for-CString)
- [`impl PartialEq<CStr> for CString`](https://doc.rust-lang.org/stable/std/ffi/struct.CString.html#impl-PartialEq%3CCStr%3E-for-CString)
- [`impl PartialEq<Cow<CStr>> for CString`](https://doc.rust-lang.org/stable/std/ffi/struct.CString.html#impl-PartialEq%3CCow%3C'_,+CStr%3E%3E-for-CString)
- [`impl PartialEq<&CStr> for Cow<CStr>`](https://doc.rust-lang.org/stable/std/borrow/enum.Cow.html#impl-PartialEq%3C%26CStr%3E-for-Cow%3C'_,+CStr%3E)
- [`impl PartialEq<CStr> for Cow<CStr>`](https://doc.rust-lang.org/stable/std/borrow/enum.Cow.html#impl-PartialEq%3CCStr%3E-for-Cow%3C'_,+CStr%3E)
- [`impl PartialEq<CString> for Cow<CStr>`](https://doc.rust-lang.org/stable/std/borrow/enum.Cow.html#impl-PartialEq%3CCString%3E-for-Cow%3C'_,+CStr%3E)

These previously stable APIs are now stable in const contexts:

- [`<[T]>::reverse`](https://doc.rust-lang.org/stable/std/primitive.slice.html#method.reverse)
- [`f32::floor`](https://doc.rust-lang.org/stable/std/primitive.f32.html#method.floor)
- [`f32::ceil`](https://doc.rust-lang.org/stable/std/primitive.f32.html#method.ceil)
- [`f32::trunc`](https://doc.rust-lang.org/stable/std/primitive.f32.html#method.trunc)
- [`f32::fract`](https://doc.rust-lang.org/stable/std/primitive.f32.html#method.fract)
- [`f32::round`](https://doc.rust-lang.org/stable/std/primitive.f32.html#method.round)
- [`f32::round_ties_even`](https://doc.rust-lang.org/stable/std/primitive.f32.html#method.round_ties_even)
- [`f64::floor`](https://doc.rust-lang.org/stable/std/primitive.f64.html#method.floor)
- [`f64::ceil`](https://doc.rust-lang.org/stable/std/primitive.f64.html#method.ceil)
- [`f64::trunc`](https://doc.rust-lang.org/stable/std/primitive.f64.html#method.trunc)
- [`f64::fract`](https://doc.rust-lang.org/stable/std/primitive.f64.html#method.fract)
- [`f64::round`](https://doc.rust-lang.org/stable/std/primitive.f64.html#method.round)
- [`f64::round_ties_even`](https://doc.rust-lang.org/stable/std/primitive.f64.html#method.round_ties_even)

<a id="1.90-Cargo"></a>

## Cargo

- [Add `http.proxy-cainfo` config for proxy certs](rust-lang/cargo#15374)
- [Use `gix` for `cargo package`](rust-lang/cargo#15534)
- [feat(publish): Stabilize multi-package publishing](rust-lang/cargo#15636)

<a id="1.90-Rustdoc"></a>

## Rustdoc

- [Add ways to collapse all impl blocks](rust-lang/rust#141663). Previously the "Summary" button and "-" keyboard shortcut would never collapse `impl` blocks, now they do when shift is held
- [Display unsafe attributes with `unsafe()` wrappers](rust-lang/rust#143662)

<a id="1.90-Compatibility-Notes"></a>

## Compatibility Notes

- [Use `lld` by default on `x86_64-unknown-linux-gnu`](rust-lang/rust#140525).
  See also <https://blog.rust-lang.org/2025/09/01/rust-lld-on-1.90.0-stable/>.
- [Make `core::iter::Fuse`'s `Default` impl construct `I::default()` internally as promised in the docs instead of always being empty](rust-lang/rust#140985)
- [Set `MSG_NOSIGNAL` for `UnixStream`](rust-lang/rust#140005)
  This may change program behavior but results in the same behavior as other primitives (e.g., stdout, network sockets).
  Programs relying on signals to terminate them should update handling of sockets to handle errors on write by exiting.
- [On Unix `std::env::home_dir` will use the fallback if the `HOME` environment variable is empty](rust-lang/rust#141840)
- We now [reject unsupported `extern "{abi}"`s consistently in all positions](rust-lang/rust#142134). This primarily affects the use of implementing traits on an `extern "{abi}"` function pointer, like `extern "stdcall" fn()`, on a platform that doesn't support that, like aarch64-unknown-linux-gnu. Direct usage of these unsupported ABI strings by declaring or defining functions was already rejected, so this is only a change for consistency.
- [const-eval: error when initializing a static writes to that static](rust-lang/rust#143084)
- [Check that the `proc_macro_derive` macro has correct arguments when applied to the crate root](rust-lang/rust#143607)

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rustdoc: Quick way to collapse all impl blocks
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