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


Project/Tooling Updates


Rust Walkthroughs


Crate of the Week

This week's crate is fltk-rs, a crate with bindings to the FLTK GUI toolkit.

Thanks to Mark Summerfield for the 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

230 pull requests were merged in the last week

Rust Compiler Performance Triage

It was a relatively calm, but good week overall. Most of the gains were improvements to rustdoc running times.

Triage done by @pnkfelix. Revision range: e91ad5..2b681a

1 Regressions, 6 Improvements, 1 Mixed; 0 of them in rollups 38 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:

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.


  • No new RFCs entered Final Comment Period this week.

Tracking Issues & PRs

New RFCs

  • No new RFCs were published this week.

Upcoming Events

Rusty Events between 1/5/2022 - 2/2/2022 🦀


North 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.

Rust Jobs






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

Quote of the Week

I performed an extremely scientific poll on twitter, and determined this is not how it's pronounced

Well, it really is Vec<T, A>, pronounced Veck-tah. 😛

Look, I moved away from Boston to avoid this sort of thing 😄.

the8472 & Thom Chiovoloni on github

Thanks to Josh Triplett 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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