Skip to content

C/QotW and notable changes #6920

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
bdillo merged 1 commit into from
Aug 22, 2025
Merged

C/QotW and notable changes #6920

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
72 changes: 69 additions & 3 deletions draft/2025-08-20-this-week-in-rust.md
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -55,7 +55,9 @@ and just ask the editors to select the category.

## Crate of the Week

<!-- COTW goes here -->
This week's crate is [tur](https://github.com/rezigned/tur), a turing machine emulator with text-mode user interface.

Despite a lack of suggestions, llogiq is very pleased with his choice.

[Please submit your suggestions and votes for next week][submit_crate]!

Expand Down Expand Up @@ -137,7 +139,67 @@ If you are an event organizer hoping to expand the reach of your event, please s

## Updates from the Rust Project

<!-- Rust updates go here -->
390 pull requests were [merged in the last week][merged]

[merged]: https://github.com/search?q=is%3Apr+org%3Arust-lang+is%3Amerged+merged%3A2025-08-12..2025-08-19

#### Compiler
* [compiler: allow `extern "interrupt" fn() → !`](https://github.com/rust-lang/rust/pull/143075)
* [const-eval: full support for pointer fragments](https://github.com/rust-lang/rust/pull/144081)
* [don't warn on never to any `as` casts as unreachable](https://github.com/rust-lang/rust/pull/144804)
* [implement declarative `macro_rules!` derive macros](https://github.com/rust-lang/rust/pull/145208) (RFC [#3698](https://rust-lang.github.io/rfcs/3698-declarative-derive-macros.html))
* [implement `#[derive(From)]`](https://github.com/rust-lang/rust/pull/144922)
* [more `Printer` cleanups](https://github.com/rust-lang/rust/pull/144949)
* [tail call diagnostics to include lifetime info](https://github.com/rust-lang/rust/pull/145012)
#### Library
* [add Ref/RefMut `try_map` method](https://github.com/rust-lang/rust/pull/118087)
* [add `Default` impls for `Pin`ned `Box`, `Rc`, `Arc`](https://github.com/rust-lang/rust/pull/143717)
* [add ASCII-related methods from `u8` and `MIN`/`MAX` to `core::ascii::Char`](https://github.com/rust-lang/rust/pull/143467)
* [change the desugaring of `assert!` for better error output](https://github.com/rust-lang/rust/pull/122661)
* [constify `SystemTime` methods](https://github.com/rust-lang/rust/pull/144519)
* [implement `ptr_cast_array`](https://github.com/rust-lang/rust/pull/144515)
* [migrate from `cfg_if` to `cfg_select`](https://github.com/rust-lang/rust/pull/145489)
* [stabilize `as_array_of_cells`](https://github.com/rust-lang/rust/pull/144054)
* [stabilize `const_exposed_provenance` feature](https://github.com/rust-lang/rust/pull/145462)
* [stabilize `core::iter::chain`](https://github.com/rust-lang/rust/pull/144963)
* [stabilize `ip_from`](https://github.com/rust-lang/rust/pull/141744)
* [stabilize `path_file_prefix` feature](https://github.com/rust-lang/rust/pull/144870)
* [stabilize `sse4a` and `tbm` target features](https://github.com/rust-lang/rust/pull/144542)
* [thread: return error if setting thread stack size fails](https://github.com/rust-lang/rust/pull/144210)
* [windows: replace `GetThreadId`+`GetCurrentThread` with `GetCurrentThreadId`](https://github.com/rust-lang/rust/pull/145412)
#### Cargo
* [unstable: Added `-Zbuild-dir-new-layout` unstable feature](https://github.com/rust-lang/cargo/pull/15848)
* [unstable: add -Zbuild-analysis unstable feature](https://github.com/rust-lang/cargo/pull/15845)
* [package: Always reuse the workspace's target-dir](https://github.com/rust-lang/cargo/pull/15783)
* [add initial integration for `--json=timings` behind `-Zsection-timings`](https://github.com/rust-lang/cargo/pull/15780)
* [fix error while running the cargo clippy --all-targets -- -D warning](https://github.com/rust-lang/cargo/pull/15843)
* [implement `host`-target substitution](https://github.com/rust-lang/cargo/pull/15838)
* [more helpful error for invalid `cargo-features = []`](https://github.com/rust-lang/cargo/pull/15781)
* [stabilize `build.build-dir`](https://github.com/rust-lang/cargo/pull/15833)
#### Rustdoc
* [search: search backend with partitioned suffix tree](https://github.com/rust-lang/rust/pull/144476)
* [allow multiple references to a single footnote](https://github.com/rust-lang/rust/pull/140434)
* [correct negative-to-implicit discriminant display](https://github.com/rust-lang/rust/pull/145216)
#### Clippy
* [`similar_names` stop linting for 3-char names](https://github.com/rust-lang/rust-clippy/pull/15100)
* [`unnecessary_operation`: add space between stmts in suggestion](https://github.com/rust-lang/rust-clippy/pull/15432)
* [`{borrow,ptr}_as_ptr`: don't lint inside proc-macros](https://github.com/rust-lang/rust-clippy/pull/15473)
* [adjust `declare_interior_mutable_const` lint's category](https://github.com/rust-lang/rust-clippy/pull/15454)
* [do not suggest to use implicit `DerefMut` on `ManuallyDrop` reached through unions](https://github.com/rust-lang/rust-clippy/pull/14387)
* [fix `match_ref_pats` false positive on match scrutinee of never type](https://github.com/rust-lang/rust-clippy/pull/15474)
* [fix `unnecessary_semicolon`: don't lint on stmts with attrs](https://github.com/rust-lang/rust-clippy/pull/15466)
#### Rust-Analyzer
* [hint at unterminated strings in unknown prefix errors](https://github.com/rust-lang/rust-analyzer/pull/20425)
* [fix "Implement default members" to resolve IdentPat](https://github.com/rust-lang/rust-analyzer/pull/20432)
* [add if..else completions in LetStmt and ArgList](https://github.com/rust-lang/rust-analyzer/pull/20390)
* [fix indent for `convert_match_to_let_else`](https://github.com/rust-lang/rust-analyzer/pull/20455)
* [make lang items query properly filter out overwritten/excluded sysroots](https://github.com/rust-lang/rust-analyzer/pull/20475)
* [only import the item in "Unqualify method call" if needed](https://github.com/rust-lang/rust-analyzer/pull/20442)
* [support guards in `replace_match_with_if_let`](https://github.com/rust-lang/rust-analyzer/pull/20456)
* [track diagnostic generations per package](https://github.com/rust-lang/rust-analyzer/pull/20459)
* [next-solver fun time](https://github.com/rust-lang/rust-analyzer/pull/20446)
* [switch from Chalk to the next trait solver](https://github.com/rust-lang/rust-analyzer/pull/20329)
* [use a more specific error message when talking about the server logs](https://github.com/rust-lang/rust-analyzer/pull/20467)

### Rust Compiler Performance Triage

Expand Down Expand Up @@ -334,7 +396,11 @@ Please see the latest [Who's Hiring thread on r/rust](INSERT_LINK_HERE)

# Quote of the Week

<!-- QOTW goes here -->
> It's amazing how far const eval has come in #Rust. It wasn't too long ago that even a simple if/else wasn't permitted. Now we're not that far off from having const trait impls and const closures, which will make damn near everything const capable.

– [Jacob Pratt on Mastodon](https://hachyderm.io/@jhpratt@mastodon.social/115052212557381430)

llogiq has looked at all zero suggestions and came up empty, so he just chose this quote instead.

[Please submit quotes and vote for next week!](https://users.rust-lang.org/t/twir-quote-of-the-week/328)

Expand Down