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? Tweet us at @ThisWeekInRust or send us a pull request. Want to get involved? We love contributions.

This Week in Rust is openly developed on GitHub. If you find any errors in this week's issue, please submit a PR.

Updates from Rust Community

Official

Newsletters

Project/Tooling Updates

Observations/Thoughts

Rust Walkthroughs

Research

Miscellaneous

Crate of the Week

This week's crate is cargo-pgo, a cargo subcommand to compile your code with profile-guided optimization and BOLT for good measure.

Thanks to Jakub Beránek for the self-suggestion!

Please submit your suggestions and votes for next week!

Call for Participation

Always wanted to contribute to open-source projects but didn't 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.

Updates from the Rust Project

410 pull requests were merged in the last week

Rust Compiler Performance Triage

A fairly quiet week for performance, with the exception of the LLVM 15 upgrade which resulted in many changes, mostly to the positive.

Triage done by @simulacrum. Revision range: cc4dd6fc9f..14a459b3

Summary:

(instructions:u) mean max count
Regressions ❌
(primary)		 0.7% 7.7% 62
Regressions ❌
(secondary)		 1.3% 5.0% 51
Improvements ✅
(primary)		 -1.8% -6.9% 93
Improvements ✅
(secondary)		 -2.4% -22.0% 128
All ❌✅ (primary) -0.8% 7.7% 155

2 Regressions, 4 Improvements, 2 Mixed; 1 of them in rollups 38 artifact comparisons made in total

Full report

Call for Testing

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:

  • No RFCs issued a call for testing 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.

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.

Final Comment Period

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

New and Updated RFCs

Upcoming Events

Rusty Events between 2022-08-17 - 2022-09-14 🦀

Virtual

Europe

North America

Oceania

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.

Jobs

Please see the latest Who's Hiring thread on r/rust

Quote of the Week

TL;DR: my claim is that Rust is attempting to raise the abstraction in the programming language and ultimately to join computer science and software engineering into one single discipline, an ambition that has been around since these disciplines were created.

– Linus Walleij on his blog

Thanks to Julian Wollersberger 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.

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