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.

Updates from Rust Community



Project/Tooling Updates


Rust Walkthroughs

Papers and Research Projects


Crate of the Week

This week's crate is Sorceress, a Rust environment for sound synthesis and algorithmic composition.

Thanks to Zelda Hessler 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.

Updates from Rust Core

369 pull requests were merged in the last week

Rust Compiler Performance Triage

A generally positive albeit quiet week though many of the perf improvements were gaining performance back from previous regressions. We'll need to continue to keep an eye on rollups as there were two that caused small performance changes.

Triage done by @rylev. Revision range: edeee..86187

1 Regression, 4 Improvements, 1 Mixed

2 of them in rollups

Approved RFCs

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


Tracking Issues & PRs

New RFCs

No new RFCs were proposed this week.

Upcoming Events


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


Launchbadge, LLC.

Manta Network

Tweede golf


Tweet us at @ThisWeekInRust to get your job offers listed here!

Quote of the Week

it's funny, every time I run into a baffling borrow error, it's preventing me from committing a real, serious mistake

but it can take some thinking to figure out what exactly that mistake is..

sometimes the borrow checker feels like a wise sage on a mountain giving advice in riddles lol

Jarrett on discord

Thanks to Daniel H-M for the suggestion.

Please submit quotes and vote for next week!

This Week in Rust is edited by: nellshamrell, llogiq, and cdmistman.

Discuss on r/rust