F1TYM1

This Week in Rust 547

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 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.

Official

Newsletters

Project/Tooling Updates

Observations/Thoughts

Rust Walkthroughs

Miscellaneous

This week’s crate is stated-scope-guard, a library supporting a more flexible RAII pattern for stated resouce management.

Thanks to Evian Zhang 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:

RFCs

  • No calls for testing were issued this week.

Rust

  • No calls for testing were issued this week.

Rustup

  • No calls for testing were issued this week.

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.

CFP – Projects

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.

“*” = Issues open for student applications via OSPP. Selected students will be assigned a mentor(s), and may receive bonuses. Please register through the OSPP link.

If you are a Rust project owner and are looking for contributors, please submit tasks here.

CFP – Speakers

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 submission website through a PR to TWiR.

329 pull requests were merged in the last week

Rust Compiler Performance Triage

A pretty quiet week with only a few PRs being flagged for analysis.
More improvements than regressions this week, and also several nice
binary size reductions caused by generating less LLVM IR.

Triage done by @kobzol.
Revision range: 69f53f5e..9105c57b

Summary:

(instructions:u) mean range count
Regressions ❌
(primary)		 0.4% [0.2%, 0.9%] 8
Regressions ❌
(secondary)		 0.9% [0.2%, 2.4%] 18
Improvements ✅
(primary)		 -1.1% [-2.3%, -0.2%] 51
Improvements ✅
(secondary)		 -0.6% [-1.4%, -0.3%] 19
All ❌✅ (primary) -0.9% [-2.3%, 0.9%] 59

1 Regression, 0 Improvements, 3 Mixed; 0 of them in rollups
75 artifact comparisons made in total

Full report here

Approved RFCs

Changes to Rust follow the Rust RFC (request for comments) process. These
are the RFCs that were approved for implementation this week:

  • No RFCs were approved 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.

RFCs

  • No RFCs entered Final Comment Period this week.

Tracking Issues & PRs

Rust
Unsafe Code Guidelines

New and Updated RFCs

Rusty Events between 2024-05-15 – 2024-06-12 ????

Virtual

Africa

Asia

Europe

North America

Oceania

South America

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

Unfortunately, most people seem to have taken the wrong lesson from Rust. They see all of this business with lifetimes and ownership as a dirty mess that Rust has had to adopt because it wanted to avoid garbage collection. But this is completely backwards! Rust adopted rules around shared mutable state and this enabled it to avoid garbage collection. These rules are a good idea regardless.

– without boats

Thanks to Jules Bertholet for the last-minute 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.

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