Warning
Info
Hello and welcome to another issue of This Week in Rust! Rust is a programming language empowering everyone to build reliable and efficient software. This is a weekly summary of its progress and community. Want something mentioned? Tag us at @ThisWeekInRust on X (formerly Twitter) or @ThisWeekinRust on mastodon.social, or send us a pull request. Want to get involved? We love contributions.
This Week in Rust is openly developed on GitHub and archives can be viewed at this-week-in-rust.org. If you find any errors in this week's issue, please submit a PR.
Want TWIR in your inbox? Subscribe here.
Send + Sync + 'static)This week's crate is vimania-uri-rs, a VIM plugin for file and URI handling.
Thanks to sysid for the self-suggestion!
Please submit your suggestions and votes for next week!
An important step for RFC implementation is for people to experiment with the implementation and give feedback, especially before stabilization. The following RFCs would benefit from user testing before moving forward:
If you are a feature implementer and would like your RFC to appear on the above list, add the new call-for-testing
label to your RFC along with a comment providing testing instructions and/or guidance on which aspect(s) of the feature
need testing.
Always wanted to contribute to open-source projects but did not know where to start? Every week we highlight some tasks from the Rust community for you to pick and get started!
Some of these tasks may also have mentors available, visit the task page for more information.
If you are a Rust project owner and are looking for contributors, please submit tasks here or through a PR to TWiR or by reaching out on X (formerly Twitter) or Mastodon!
Are you a new or experienced speaker looking for a place to share something cool? This section highlights events that are being planned and are accepting submissions to join their event as a speaker.
If you are an event organizer hoping to expand the reach of your event, please submit a link to the website through a PR to TWiR or by reaching out on X (formerly Twitter) or Mastodon!
416 pull requests were merged in the last week
rustc_target: Add various aarch64 featuresub_checks intrinsics: fall back to cfg(ub_checks)aarch64_unknown_nto_qnx700 target - QNX 7.0 support for aarch64leneeds-unwind compiletest directive to libtest-thread-limit and replace some Path with path in run-makeSpan and visit::Locationneeds-llvm-components directives for run-make tests that need target-specific codegenCodeRegion to SourceRegionwasm_c_abi lint to nudge the last 25%rustc_type_ir::inherent outside of type ir + new trait solversource_span when not tracking dependenciesTyKind in a linttime<=0.3.35predicates_defined_onstruct target featuresraw_eqelided_named_lifetimes)LazyArray panic if not setconst_precise_live_drops per-functionunreachable_pub'tcx lifetime off of impl and onto methods for CrateMetadataRefremove_dir_all impl into a module and make it more race resistantBikeshedIntrinsicFrom to TransmuteFromlint_expectations in a single passsysty::GenericPredicates for non-predicates_of queriespanic_immediate_abortDuration::MAXderive(SmartPointer): assume pointee from the single generic and better error messagesfmt::Debug to sync::Weak<T, A>read_buf stub for x86_64-unknown-l4re-uclibcBufReader::peek to be called on unsized typescompare_bytes for more slice element typesPin::set bounds regressionchecked_isqrt and isqrt methodsfeature(new_uninit)HashTable::iter_hash, HashTable::iter_hash_mutimplicit_saturating_sub lintzombie_processesfeature=cargo-clippy argumentasync fn ... in impl trait for async fn in trait that's defined in desugar formfor in impl T for A in function bodyenum discriminant assistaddr_of[_mut]!(EXTERN_OR_MUT_STATIC)let_stmt and fn_paramstd::error::Error is object unsafestruct and the oppositeTokenStream::to_string implementation dropping quotation marksThis week we had some trouble with our performance bot, but luckily the issue has been resolved. In the end, we saw much more improvements than regressions.
Triage done by @kobzol. Revision range: acb4e8b6..6199b69c
Summary:
| (instructions:u) | mean | range | count |
|---|---|---|---|
| Regressions โ (primary) |
0.3% | [0.2%, 0.4%] | 8 |
| Regressions โ (secondary) |
0.7% | [0.2%, 1.5%] | 9 |
| Improvements โ
(primary) |
-0.8% | [-3.4%, -0.2%] | 158 |
| Improvements โ
(secondary) |
-0.7% | [-2.3%, -0.2%] | 96 |
| All โโ (primary) | -0.7% | [-3.4%, 0.4%] | 166 |
2 Regressions, 3 Improvements, 1 Mixed; 3 of them in rollups 19 artifact comparisons made in total
Changes to Rust follow the Rust RFC (request for comments) process. These are the RFCs that were approved for implementation this week:
Every week, the team announces the 'final comment period' for RFCs and key PRs which are reaching a decision. Express your opinions now.
catch_unwind doc comments for c_unwindconst_extern_fnextern "C" frames to be executedchar::MIN#![feature(entry_insert)]Rusty Events between 2024-09-04 - 2024-10-02 ๐ฆ
If you are running a Rust event please add it to the calendar to get it mentioned here. Please remember to add a link to the event too. Email the Rust Community Team for access.
Please see the latest Who's Hiring thread on r/rust
I'm pretty sure I'm the only person ever to single handedly write a complex GPU kernel driver that has never had a memory safety kernel panic bug (itself) in production, running on thousands of users' systems for 1.5 years now.
Because I wrote it in Rust.
Thanks to Ludwig Stecher for the suggestion!
Please submit quotes and vote for next week!
This Week in Rust is edited by: nellshamrell, llogiq, cdmistman, ericseppanen, extrawurst, andrewpollack, U007D, kolharsam, joelmarcey, mariannegoldin, bennyvasquez.
Email list hosting is sponsored by The Rust Foundation
๐ท๏ธ Rust_feed