Hello and welcome to another issue of This Week in Rust! Rust is a systems language pursuing the trifecta: safety, concurrency, and speed. 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.

News & Blog Posts

Crate of the Week

This week's crate is async-trait, a procedural macro to allow async fn s in trait methods. Thanks to Ehsan M. Kermani for the suggestion!

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.

324 pull requests were merged in the last week

Approved RFCs

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.

No new RFCs were proposed this week.

New RFCs

Upcoming Events

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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.

Rust Jobs

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Quote of the Week

Rust clearly popularized the ownership model, with similar implementations being considered in D, Swift and other languages. This is great news for both performance and memory safety in general. Also let's not forget that Rust is not the endgame. Someone may at one point find or invent a language that will offer an even better position in the safety-performance-ergonomics space. We should be careful not to get too attached to Rust, lest we stand in progress' way.

– llogiq on reddit

Thanks to Vikrant for the suggestion!

Please submit quotes and vote for next week!

This Week in Rust is edited by: nasa42, llogiq, and Flavsditz.