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 rug, a crate providing arbitrary-precision integers, rationals and floating-point numbers, using GMP, MPFR and MPC. Thank you, Trevor Spiteri 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.

160 pull requests were merged in the last week

New Contributors

42triangles

David Adler

Gauri Kholkar

Ixrec

J. Cliff Dyer

Michal Budzynski

rwakulszowa

smt923

Trevor Merrifield

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. This week's FCPs are:

New RFCs

Raw identifiers. Add a raw identifier format r#ident , so crates written in future language epochs/versions can still use an older API that overlaps with new keywords.

, so crates written in future language epochs/versions can still use an older API that overlaps with new keywords. new rand_core crate, rand adaptations.

crate, adaptations. Debuginfo-based panic locations.

Upcoming Events

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Rust Jobs

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

Quote of the Week

<heycam> one of the best parts about stylo has been how much easier it has been to implement these style system optimizations that we need, because Rust <heycam> can you imagine if we needed to implement this all in C++ in the timeframe we have <bholley> heycam: yeah srsly <bholley> heycam: it's so rare that we get fuzz bugs in rust code <bholley> heycam: considering all the complex stuff we're doing * heycam remembers getting a bunch of fuzzer bugs from all kinds of style system stuff in gecko <bholley> heycam: think about how much time we could save if each one of those annoying compiler errors today was swapped for a fuzz bug tomorrow :-) <njn> you guys sound like an ad for Rust

— Conversation between some long-time Firefox developers.

Thanks to Josh Matthews for the suggestion.

Submit your quotes for next week!

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