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 an email! 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.

This week's edition was edited by: nasa42, brson, and llogiq.

Updates from Rust Community

News & Blog Posts

• Redox is serious. Redox is an upcoming OS written in Rust.
• Index 1,600,000,000 keys with Automata and Rust.
• Writing an OS in Rust: Allocating frames.
• Making Popcorn: Adding a disk to a Rust Rumprun Unikernel.
• Rust in detail: Sending and receiving messages.
• Rust impressions from a C++/D programmer, part 1.
• Rust impressions from a C++/D programmer, part 2.
• Bare metal Rust 2: Retarget your compiler so interrupts are not evil.
• This week in Servo 41.

Notable New Crates & Projects

• rustfmt is now part of Rust Nursery.
• Leaf. Open Machine Intelligence Framework.
• lrs. An experimental, linux-only standard library.

Updates from Rust Core

95 pull requests were merged in the last week.

See the triage digest and subteam reports for more details.

Notable changes

• Add a MIR pass to simplify the control flow graph.
• BinaryHeap: Simplify sift down.
• Allow none Sized types in assert_eq!.
• Add -Zinput-stats.
• Suggest mut for mutability errors.
• Cargo: Add a rustdoc subcommand.
• Syntax: Merge parsing code for structures and variants.
• Report errors at macro definition, not expansion.

New Contributors

• corentih
• Danilo Bargen
• Eric Findlay
• Erik Davidson
• Kohei Hasegawa
• Sebastian Hahn

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:

• Amend recover with a PanicSafe bound.
• Document and expand the open options.
• Allow overlapping implementations for marker traits.
• #[deprecated] for Everyone.
• Improvements to the Time APIs.
• Define the general semantics of intrinsic functions.
• Add an alias attribute to #[link] and -l.

New RFCs

• Add #[repr(align = "N")].
• Add CommandExt::{exec, before_exec}.
• Improve Cargo target-specific dependencies.
• Transparently use verbatim paths on Windows.

Upcoming Events

• 11/17. Rust Hack and Learn Hamburg.
• 11/18. Rust Los Angeles Monthly Meetup.
• 11/19. Wellington Rust Meetup.
• 11/25. Columbus Rust Society.
• 11/25. RustBerlin Hack and Learn.

If you are running a Rust event please add it to the calendar to get it mentioned here. Email Erick Tryzelaar or Brian Anderson for access.

fn work(on: RustProject) -> Money

• Research Engineer - Servo at Mozilla.
• Senior Research Engineer - Rust at Mozilla. Join the core Rust team!
• Open Source Software Engineer at MaidSafe.
• Systems Engineer at IronNet Cybersecurity.

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

Crate of the Week

This week's Crate of the Week is Hyper which offers a Rust HTTP(S) implementation for both clients and servers.

Thanks to DanielKeep for this week's suggestion. Submit your suggestions for next week!