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

No Rust Blog posts this week.




Rust Walkthroughs

Project Updates


Crate of the Week

This week's crate is tract from Sonos, a neural network inference library, written purely in Rust for models in ONNX, NNEF and TF formats.

Thanks to Benjamin Minixhofer 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

374 pull requests were merged in the last week

Rust Compiler Performance Triage

  • 2020-11-03: 0 Regressions, 5 Improvements, 0 mixed

A number of improvements on various benchmarks. The most notable news this week in compiler performance is the progress on instruction metric collection on a per-query level; see measureme#143 for the latest.

Otherwise, this week was an excellent one for performance (though mostly on stress tests and auto-generated test cases rather than commonly seen code).

See the full report for more.

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.


Tracking Issues & PRs

New RFCs

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

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

Quote of the Week

Like other languages Rust does have footguns. The difference is that we keep ours locked up in the unsafe.

Ted Mielczarek on twitter

Thanks to Nikolai Vazquez 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