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

News & Blog Posts

Rust Community team is happy to announce the Rust Community blog. Read one of the first posts: About the Rust Community team.
Mozilla Press Release: Shipping Rust in Firefox.
Tor project is considering an incremental migration to Rust.
Fuzzing is magic - Or how I found a panic in Rust's regex library.
Writing a raytracer in Rust. Part 1: First rays.
Introducing Linkerd-tcp. A TCP load balancer written in Rust with Tokio.
A comparison of regex engines.
Async, Futures, AMQP, pick three.
Definitive guide to Rust, SDL 2 and Emscripten
Generic numeric functions in safe, stable Rust with the num crate.
Building realtime APIs in Rust.
Writing GStreamer elements in Rust (part 4). Logging, COWs and plugins.
This week in Rust docs 50.
These weeks in Servo 96.

Crate of the Week

This week's Crate of this Week is fst, which contains Finite State Transducers and assorted algorithms that use them (e.g. fuzzy text search). Thanks to Jules Kerssemakers 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.

Want to join the Rust docs team?
Rust reference docs: Document all features.
Rusoto an AWS SDK for Rust is looking for maintainers.
liner: Make keyboard interrupts (e.g. SIGINT from Ctrl-c) work. Liner is a readline-like library in Rust.
liner: Tilde expansion.
liner: Password mode.
liner: Use right arrow key to select autocompletion.
Ion: Optional Descriptions for Functions. Ion is a shell for UNIX platforms, and is the default shell in Redox.
Ion: Implement Mapfiles.
parenchyma: CUDA maintainer. Parenchyma is an extensible HPC-Framework for CUDA, OpenCL and native CPU.

If you are a Rust project owner and are looking for contributors, please submit tasks here.

Updates from Rust Core

114 pull requests were merged in the last week.

New Contributors

Alan Stoate
aStoate
Donnie Bishop
GAJaloyan
Jörg Thalheim
Malo Jaffré
Micah Tigley
Nick Sweeting
Phil Ellison
raph

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. This week's FCPs are:

[disposition: postpone] Polymorphic Numeric Constants.
[disposition: postpone] Introduce with bounds for pi types.
[disposition: merge] extend ? to operate over other types.
[disposition: merge] Remove static bound from type_id.
[disposition: merge] Extend entry API to work on borrowed keys.
[disposition: merge] Deprecate anonymous parameters.

New RFCs

Copy most of the static ptr:: functions to methods on unsafe pointers themselves.

Style RFCs

Style RFCs are part of the process for deciding on style guidelines for the Rust community and defaults for Rustfmt. The process is similar to the RFC process, but we try to reach rough consensus on issues (including a final comment period) before progressing to PRs. Just like the RFC process, all users are welcome to comment and submit RFCs. If you want to help decide what Rust code should look like, come get involved!

We're making good progress and the style is coming together. If you want to see the style in practice, check out our example or use the Integer32 Playground and select 'Proposed RFC' from the 'Format' menu. Be aware that implementation is work in progress.

Issues in final comment period:

Good first issues:

We're happy to mentor these, please reach out to us in #rust-style if you'd like to get involved