This Week in Rust

This Week in Rust 672

2026-10-07T00:00:00-04:00

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? Tag us at @thisweekinrust.bsky.social on Bluesky or @ThisWeekinRust on mastodon.social, or send us a pull request. Want to get involved? We love contributions.

This Week in Rust is openly developed on GitHub and archives can be viewed at this-week-in-rust.org. If you find any errors in this week's issue, please submit a PR.

Want TWIR in your inbox? Subscribe here.

Updates from Rust Community

Official

Foundation

A Fond Farewell To Three Rust Foundation Colleagues

Newsletters

Project/Tooling Updates

Observations/Thoughts

Rust Walkthroughs

Crate of the Week

This week's crate is karatepe, a statically typed localisation language and library.

Thanks to miro for the self-suggestion!

Please submit your suggestions and votes for next week!

Calls for Testing

An important step for RFC implementation is for people to experiment with the implementation and give feedback, especially before stabilization.

If you are a feature implementer and would like your RFC to appear in this list, add a call-for-testing label to your RFC along with a comment providing testing instructions and/or guidance on which aspect(s) of the feature need testing.

No calls for testing were issued this week by Rust, Cargo, Rustup or Rust language RFCs.

Let us know if you would like your feature to be tracked as a part of this list.

Call for Participation; projects and speakers

CFP - Projects

Always wanted to contribute to open-source projects but did not 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 or through a PR to TWiR or by reaching out on Bluesky or Mastodon!

CFP - Events

Are you a new or experienced speaker looking for a place to share something cool? This section highlights events that are being planned and are accepting submissions to join their event as a speaker.

RustWeek 2027 | CFP closes 2027-01-10 | Utrecht, The Netherlands | Event date: 2027-05-24
TokioConf 2027 | CFP closes 2026-11-30 | Portland, Oregon, USA | 2027-04-26 - 2027-04-27

If you are an event organizer hoping to expand the reach of your event, please submit a link to the website through a PR to TWiR or by reaching out on Bluesky or Mastodon!

Updates from the Rust Project

653 pull requests were merged in the last week

Compiler

Library

Cargo

Rustdoc

Rustfmt

Clippy

Rust-Analyzer

Rust Compiler Performance Triage

A relatively quiet week, but a very positive one nonetheless. Highlights are a 3.1% improvement in rustdoc speed from not using the metadata based crate_hash for rustdoc runs, a 0.5% improvement from a new fast path in the trait solver, and a 0.4% improvement from a cache for the parents of SpanData.

Triage done by @JonathanBrouwer. Revision range: c1070d69..cc9a14f7

Summary:

(instructions:u)	mean	range	count
Regressions ❌ (primary)	0.6%	[0.4%, 1.0%]	12
Regressions ❌ (secondary)	0.4%	[0.1%, 0.9%]	26
Improvements ✅ (primary)	-1.1%	[-6.2%, -0.2%]	212
Improvements ✅ (secondary)	-1.9%	[-15.7%, -0.1%]	208
All ❌✅ (primary)	-1.0%	[-6.2%, 1.0%]	224

4 Regressions, 3 Improvements, 1 Mixed; 5 of them in rollups 33 artifact 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.

Tracking Issues & PRs

Rust

Compiler Team (MCPs only)

Language Reference

Guarantee that the never type ! is zero-sized and 1-aligned.

No Items entered Final Comment Period this week for Rust RFCs, Cargo, Language Team, Leadership Council or Unsafe Code Guidelines. Let us know if you would like your PRs, Tracking Issues or RFCs to be tracked as a part of this list.

New and Updated RFCs

This RFC will appear in the Call for Testing section of the next issue (#) of This Week in Rust (TWiR). You may remove the call-for-testing label. Please feel free to leave the call-for-testing label in place if you would like this RFC to appear again in another issue of TWiR.

Upcoming Events

Rusty Events between 2026-10-07 - 2026-11-04 🦀

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.

Jobs

Please see the latest Who's Hiring thread on r/rust

Quote of the Week

There ain't no rules here in Quote of the Week - it's survival of the wittest

– Simon Buchan on rust-users

Thanks to Jonas Fassbender for the suggestion!

Please submit quotes and vote for next week!

This Week in Rust is edited by:

Email list hosting is sponsored by The Rust Foundation

Discuss on r/rust

This Week in Rust 671

2026-09-30T00:00:00-04:00

This Week in Rust is openly developed on GitHub and archives can be viewed at this-week-in-rust.org. If you find any errors in this week's issue, please submit a PR.

Want TWIR in your inbox? Subscribe here.

Updates from Rust Community

Newsletters

Observations/Thoughts

Rust Walkthroughs

Miscellaneous

[DE]Rust & Linux Community Event – November 20–21, 2026 @ TUXEDO, Augsburg – Help us choose the workshop topic

Crate of the Week

This week's crate is ying-profiler, a native Rust sampling memory profiler.

Thanks to Evan Chan for the self-suggestion!

Please submit your suggestions and votes for next week!

Calls for Testing

An important step for RFC implementation is for people to experiment with the implementation and give feedback, especially before stabilization.

No calls for testing were issued this week by Rust, Cargo, Rustup or Rust language RFCs.

Let us know if you would like your feature to be tracked as a part of this list.

Call for Participation; projects and speakers

CFP - Projects

Always wanted to contribute to open-source projects but did not 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 or through a PR to TWiR or by reaching out on Bluesky or Mastodon!

CFP - Events

Are you a new or experienced speaker looking for a place to share something cool? This section highlights events that are being planned and are accepting submissions to join their event as a speaker.

If you are an event organizer hoping to expand the reach of your event, please submit a link to the website through a PR to TWiR or by reaching out on Bluesky or Mastodon!

Updates from the Rust Project

546 pull requests were merged in the last week

Compiler

Library

Cargo

Rustdoc

Clippy

Rust-Analyzer

Rust Compiler Performance Triage

This week was fairly positive. We had no pure regressions, and most of the results came from a few architectural improvements with mixed or mostly positive impact. Some improvements also come from addressing previously triaged regression caused by missing no_alias annotation for references in closures.

The biggest improvement this week is in rustdoc, from tackling quadratic behaviour when generating sidebar links. This was reported by a user, but the effect didn't show up in our benchmarks, so we added a special stress test for it.

Triage done by @panstromek. Revision range: 3670d253..c1070d69

Summary:

(instructions:u)	mean	range	count
Regressions ❌ (primary)	0.6%	[0.2%, 0.8%]	8
Regressions ❌ (secondary)	1.4%	[0.1%, 5.8%]	30
Improvements ✅ (primary)	-0.6%	[-1.7%, -0.2%]	192
Improvements ✅ (secondary)	-1.5%	[-82.5%, -0.1%]	101
All ❌✅ (primary)	-0.6%	[-1.7%, 0.8%]	200

0 Regressions, 2 Improvements, 6 Mixed; 3 of them in rollups 26 artifact 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:

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

Rust

Rust RFCs

f16b type

Cargo

feat(trim-paths): stabilize profile.trim-paths

Compiler Team (MCPs only)

Create new Tier 3 Target for QTEE: aarch64-unknown-qtee

No Items entered Final Comment Period this week for Language Team, Language Reference, Leadership Council or Unsafe Code Guidelines. Let us know if you would like your PRs, Tracking Issues or RFCs to be tracked as a part of this list.

New and Updated RFCs

Make trait methods callable in const contexts, take III

Upcoming Events

Rusty Events between 2026-09-30 - 2026-10-28 🦀

Virtual

2026-09-30 | Virtual (Cardiff, UK) | Rust and C++ Cardiff
- Operating Systems Book Club: Segmentation and Introduction to Paging
2026-10-01 | Virtual | Rust Foundation & JetBrains
- Livestream: Smarter Coding Agents for Rust with Symposium
2026-10-02 | Virtual | Rust Girona
- Sessió setmanal de codificació / Weekly coding session
2026-10-03 | Virtual (Amsterdam, NL) | Bevy Game Development
- Bevy Meetup #14
2026-10-04 | Virtual (Dallas, TX, US) | Dallas Rust User Meetup
- Rust Deep Learning: First Sunday
2026-10-06 | Virtual (London, UK) | Women in Rust
- 👋 Community Catch Up
2026-10-07 | Virtual (Indianapolis, IN, US) | Indy Rust
- Indy.rs - with Social Distancing
2026-10-08 | Virtual (Berlin, DE) | Rust Berlin
- Rust Hack and Learn
2026-10-08 | Virtual (Nürnberg, DE) | Rust Nuremberg
- Rust Nürnberg online
2026-10-10 | Virtual (Gdansk, PL) | Stacja IT Trójmiasto
- [BEZPŁATNIE] Programowanie w języku Rust
2026-10-10 | Hybrid (Kuala Lumpur, Malaysia) | Rust Malaysia Meetup
- Rust Meetup October 2026
2026-10-13 | Virtual (Dallas, TX, US) | Dallas Rust User Meetup
- Second Tuesday
2026-10-14 - 2026-10-17 | Hybrid (Barcelona, ES) | EuroRust
- EuroRust 2026
2026-10-18 | Virtual (Dallas, TX, US) | Dallas Rust User Meetup
- Rust Deep Learning: Third Sunday
2026-10-20 | Virtual (Washington, DC, US) | Rust DC
- Mid-month Rustful
2026-10-21 | Hybrid (Vancouver, CA) | Vancouver Rust
- Disposable Agent Sandboxes in Rust
2026-10-22 | Virtual (Berlin, DE) | Rust Berlin
- Rust Hack and Learn
2026-10-27 | Virtual (Dallas, TX, US) | Dallas Rust User Meetup
- Fourth Tuesday Rust Bookclub
2026-10-27 | Virtual (London, UK) | Women in Rust
- Lunch & Learn: Reasoning with Async Rust

Asia

2026-10-09 | Hybrid (Kuala Lumpur, MY) | Rust Malaysia Meetup
- Rust Meetup August 2026

Europe

2026-09-30 | Basel, CH | Rust Basel
- Rust Meetup #16 @ ERNI
2026-09-30 | Berlin, DE | Rust Berlin
- Rust Berlin Talks: The next generation
2026-10-01 | Berlin, DE | Rust Berlin
- Rust Berlin on location 🏳️‍🌈 – Edition 018
2026-10-01 | Oxford, GB | Oxford ACCU/Rust Meetup.
- Embedded Rust for Duffers
2026-10-05 | München, DE | Rust Munich
- Rust Munich 2026 / 3
2026-10-08 | Oslo, NO | Rust Oslo
- Rust Hack'n'Learn at Kampen Bistro
2026-10-08 | Geneva, CH | Rust Geneva
- Rust Meetup Geneva
2026-10-14 | Barcelona, ES | BcnRust
- 22nd bcnrust session
2026-10-14 - 2026-10-17 | Hybrid (Barcelona, ES) | EuroRust
- EuroRust 2026
2026-10-20 | Leipzig, DE | Rust - Modern Systems Programming in Leipzig
- Topic TBD

North America

2026-10-01 | Saint Louis, MO, US | STL Rust
- Building a Minimal, Rootless Container in Rust
2026-10-03 | Boston, MA, US | Boston Rust Meetup
- Alewife Rust Lunch, Oct 3
2026-10-08 | Lehi, UT, US | Utah Rust
- Lightning Talks N' Chill
2026-10-08 | New York, NY, US | Rust NYC
- Rust NYC: Zero Knowledge Proofs & GPUs in Rendering
2026-10-08 | San Diego, CA, US | San Diego Rust
- San Diego Rust October Meetup - Back in person!
2026-10-10 | Boston, MA, US | Boston Rust Meetup
- Back Bay Rust Lunch, Oct 10
2026-10-14 | Los Angeles, CA, US | Rust Los Angeles
- Rust LA October: AI & Rust w/ Oxen.AI & Origin Lab!
2026-10-20 | San Francisco, CA, US | San Francisco Rust Study Group
- Rust Hacking in Person
2026-10-21 | Hybrid (Vancouver, CA) | Vancouver Rust
- Disposable Agent Sandboxes in Rust
2026-10-21 | San Francisco, CA, US | Bay Area Rust
- Bay Area Rust - Embedded Meetup
2026-10-28 | Austin, TX, US | Rust ATX
- Rust Lunch - Fareground

South America

2026-10-08 | Buenos Aires, AR | Rust en Español
- WebApp Ergonomics y Secretos Distribuidos.

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.

Jobs

Please see the latest Who's Hiring thread on r/rust

Quote of the Week

The community is obnoxiously helpful. I asked a simple question on the Rust community Discord server. What is the best way to read a file in Rust? I expected a straightforward response. Instead, I got back a 2,000-word essay on the inner workings of IO, buffering, error handling, and ownership, plus links to four different blog posts and three different approaches depending on file size, and a working code example.

...

The Rust community has weaponized education against me. I'm now a better engineer than I was yesterday against my will.

– tris on youtube

Thanks to MusicalNinjaDad for the suggestion!

Please submit quotes and vote for next week!

This Week in Rust is edited by:

Email list hosting is sponsored by The Rust Foundation

Discuss on r/rust

This Week in Rust 670

2026-09-23T00:00:00-04:00

This Week in Rust is openly developed on GitHub and archives can be viewed at this-week-in-rust.org. If you find any errors in this week's issue, please submit a PR.

Want TWIR in your inbox? Subscribe here.

Updates from Rust Community

Official

Foundation

Guest Post: Rust Is Tier-1 Language at Microsoft

Project/Tooling Updates

Observations/Thoughts

Rust Walkthroughs

Crate of the Week

This week's crate is fastlogging-rs, a fast logger which supports 8 different programming languages.

Thanks to brmmm3 for the self-suggestion!

Please submit your suggestions and votes for next week!

Calls for Testing

An important step for RFC implementation is for people to experiment with the implementation and give feedback, especially before stabilization.

No calls for testing were issued this week by Rust, Cargo, Rustup or Rust language RFCs.

Let us know if you would like your feature to be tracked as a part of this list.

RFCs

Rust

Rustup

If you are a feature implementer and would like your RFC to appear on the above list, add the new call-for-testing label to your RFC along with a comment providing testing instructions and/or guidance on which aspect(s) of the feature need testing.

Call for Participation; projects and speakers

CFP - Projects

Always wanted to contribute to open-source projects but did not 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 or through a PR to TWiR or by reaching out on Bluesky or Mastodon!

CFP - Events

Are you a new or experienced speaker looking for a place to share something cool? This section highlights events that are being planned and are accepting submissions to join their event as a speaker.

If you are an event organizer hoping to expand the reach of your event, please submit a link to the website through a PR to TWiR or by reaching out on Bluesky or Mastodon!

Updates from the Rust Project

618 pull requests were merged in the last week

Compiler

Library

Cargo

Rustdoc

Clippy

Rust-Analyzer

Rust Compiler Performance Triage

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

Rust

Cargo

Compiler Team (MCPs only)

Leadership Council

No Items entered Final Comment Period this week for Rust RFCs, Language Team, Language Reference or Unsafe Code Guidelines. Let us know if you would like your PRs, Tracking Issues or RFCs to be tracked as a part of this list.

New and Updated RFCs

No New or Updated RFCs were created this week.

Upcoming Events

Rusty Events between 2026-09-23 - 2026-10-21 🦀

Virtual

2026-09-24 | Virtual (Berlin, DE) | Rust Berlin
- Rust Hack and Learn
2026-09-24 | Virtual (Charlottesville, VA, US) | Charlottesville Rust Meetup
- Rust Cells — Interior Mutability from Rust Core to Tock OS
2026-09-29 | Virtual (London, UK) | Women in Rust
- Lunch & Learn: Crates, Tips & Tricks Lightning Talks - Bring your ideas!
2026-09-30 | Virtual (Cardiff, UK) | Rust and C++ Cardiff
- Operating Systems Book Club: Segmentation and Introduction to Paging
2026-10-02 | Virtual | Rust Girona
- Sessió setmanal de codificació / Weekly coding session
2026-10-04 | Virtual (Dallas, TX, US) | Dallas Rust User Meetup
- Rust Deep Learning: First Sunday
2026-10-06 | Virtual (London, UK) | Women in Rust
- 👋 Community Catch Up
2026-10-07 | Virtual (Indianapolis, IN, US) | Indy Rust
- Indy.rs - with Social Distancing
2026-10-08 | Virtual (Berlin, DE) | Rust Berlin
- Rust Hack and Learn
2026-10-08 | Virtual (Nürnberg, DE) | Rust Nuremberg
- Rust Nürnberg online
2026-10-10 | Virtual (Gdansk, PL) | Stacja IT Trójmiasto
- [BEZPŁATNIE] Programowanie w języku Rust
2026-10-13 | Virtual (Dallas, TX, US) | Dallas Rust User Meetup
- Second Tuesday
2026-10-14 - 2026-10-17 | Hybrid (Barcelona, ES) | EuroRust
- EuroRust 2026
2026-10-18 | Virtual (Dallas, TX, US) | Dallas Rust User Meetup
- Rust Deep Learning: Third Sunday
2026-10-20 | Virtual (Washington, DC, US) | Rust DC
- Mid-month Rustful
2026-10-21 | Hybrid (Vancouver, CA) | Vancouver Rust
- Disposable Agent Sandboxes in Rust

Asia

2026-09-23 | Maharashtra, IN | Rust Pune
- Exploring standard traits in Rust

Europe

2026-09-24 | Aarhus, DK | Rust Aarhus
- Talk Night at SkyTEM
2026-09-24 | Amsterdam, NL | Rust Developers Amsterdam Group
- Rust Meetup @ BlockTech
2026-09-24 | Frankfurt, DE | Rust Rhein-Main
- AI Agentic Coding
2026-09-24 | London, UK | Rust London User Group
- Rust London, Lloyds Banking Group, with Luca Palmieri & Mainmatter
2026-09-25 | Edinburgh, UK | Rust and Friends
- Rust and Friends (daytime coffee)
2026-09-26 | Stockholm, SE | Stockholm Rust
- Ferris' Fika Forum #30
2026-09-28 | Augsburg, DE | Rust Meetup Augsburg
- Rust Meetup #21: Maximilian Grauvogl & Marcel Fink - From Bits to Bugs: A Rust generator for SUIT Manifests and Structure-Aware Parser Fuzzing
2026-09-29 | Manchester, UK | Rust Manchester
- Rust Manchester September Code Night
2026-09-29 | Milano, IT | Rust Language Milan
- Why Rust is not really OOP?
2026-09-30 | Basel, CH | Rust Basel
- Rust Meetup #16 @ ERNI
2026-09-30 | Berlin, DE | Rust Berlin
- Rust Berlin Talks: The next generation
2026-10-05 | München, DE | Rust Munich
- Rust Munich 2026 / 3
2026-10-08 | Oslo, NO | Rust Oslo
- Rust Hack'n'Learn at Kampen Bistro
2026-10-10 | Geneva, CH | Rust Geneva
- Rust Meetup Geneva
2026-10-14 | Barcelona, ES | BcnRust
- 22nd bcnrust session
2026-10-14 - 2026-10-17 | Hybrid (Barcelona, ES) | EuroRust
- EuroRust 2026
2026-10-20 | Leipzig, DE | Rust - Modern Systems Programming in Leipzig
- Topic TBD

North America

2026-09-23 | Austin, TX, US | Rust ATX
- Rust Lunch - Fareground
2026-09-23 | Austin, TX, US | Rust ATX
- Rust Lunch - Fareground
2026-09-24 | Atlanta, GA, US | Rust Atlanta
- Rust-Atl
2026-09-26 | Boston, MA, US | Boston Rust Meetup
- Harvard Rust Lunch, Sep 26
2026-10-01 | Saint Louis, MO, US | STL Rust
- Building a Minimal, Rootless Container in Rust
2026-10-03 | Boston, MA, US | Boston Rust Meetup
- Alewife Rust Lunch, Oct 3
2026-10-08 | San Diego, CA, US | San Diego Rust
- San Diego Rust October Meetup - Back in person!
2026-10-10 | Boston, MA, US | Boston Rust Meetup
- Back Bay Rust Lunch, Oct 10
2026-10-14 | Los Angeles, CA, US | Rust Los Angeles
- Rust LA October: AI & Rust w/ Oxen.AI & Origin Lab!
2026-10-20 | San Francisco, CA, US | San Francisco Rust Study Group
- Rust Hacking in Person
2026-10-21 | Hybrid (Vancouver, CA) | Vancouver Rust
- Disposable Agent Sandboxes in Rust

Oceania

2026-09-29 | Barton, AU | Canberra Rust User Group
- September Meetup

South America

2026-10-08 | Buenos Aires, AR | Rust en Español
- WebApp Ergonomics y Secretos Distribuidos.

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.

Jobs

Please see the latest Who's Hiring thread on r/rust

Quote of the Week

operational pedantics

– Clar Fon on rust zulip

Thanks to Jules Bertholet for the suggestion!

Please submit quotes and vote for next week!

This Week in Rust is edited by:

Email list hosting is sponsored by The Rust Foundation

Discuss on r/rust

This Week in Rust 669

2026-09-16T00:00:00-04:00

This Week in Rust is openly developed on GitHub and archives can be viewed at this-week-in-rust.org. If you find any errors in this week's issue, please submit a PR.

Want TWIR in your inbox? Subscribe here.

Updates from Rust Community

Newsletters

Project/Tooling Updates

Slint 1.18 Released

Observations/Thoughts

Rust Walkthroughs

Research

Optimizing a single Clippy lint by 3133X

Crate of the Week

This week's crate is zenjpeg, a pure Rust JPEG encoder and decoder.

Thanks to Kornel for the suggestion!

Please submit your suggestions and votes for next week!

Calls for Testing

An important step for RFC implementation is for people to experiment with the implementation and give feedback, especially before stabilization.

Cargo

No calls for testing were issued this week by Rust, Rustup or Rust language RFCs.

Let us know if you would like your feature to be tracked as a part of this list.

Call for Participation; projects and speakers

CFP - Projects

Always wanted to contribute to open-source projects but did not 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.

No Calls for participation were submitted this week.

If you are a Rust project owner and are looking for contributors, please submit tasks here or through a PR to TWiR or by reaching out on Bluesky or Mastodon!

CFP - Events

Are you a new or experienced speaker looking for a place to share something cool? This section highlights events that are being planned and are accepting submissions to join their event as a speaker.

No Calls for papers or presentations were submitted this week.

If you are an event organizer hoping to expand the reach of your event, please submit a link to the website through a PR to TWiR or by reaching out on Bluesky or Mastodon!

Updates from the Rust Project

523 pull requests were merged in the last week

Compiler

Library

Cargo

Rustfmt

Clippy

Rust-Analyzer

Rust Compiler Performance Triage

There were almost no regressions this week, and several performance improvements! Though some of them were reverts of regressions from a previous week. #162422 improved the performance of Polonius, whose performance is getting closer to the previous NLL borrow checker.

Triage done by @Kobzol. Revision range: 656a9da1..20d35a3a

Summary:

(instructions:u)	mean	range	count
Regressions ❌ (primary)	-	-	0
Regressions ❌ (secondary)	0.4%	[0.1%, 0.9%]	3
Improvements ✅ (primary)	-0.7%	[-4.4%, -0.1%]	199
Improvements ✅ (secondary)	-0.9%	[-2.7%, -0.1%]	222
All ❌✅ (primary)	-0.7%	[-4.4%, -0.1%]	199

0 Regressions, 5 Improvements, 5 Mixed; 2 of them in rollups 40 artifact 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:

No RFCs were approved this week.

Fix broken Zig link in RFC 3308 and typos across RFC texts

Upcoming Events

Rusty Events between 2026-09-16 - 2026-10-14 🦀

Virtual

2026-09-16 | Hybrid (Vancouver, CA) | Vancouver Rust
- Building a Rust GPU driver in the Linux kernel
2026-09-17 | Hybrid (Seattle, WA, US) | Seattle Rust User Group
- September, 2026 SRUG (Seattle Rust User Group) Meetup
2026-09-18 | Virtual | Rust Girona
- Sessió setmanal de codificació / Weekly coding session
2026-09-20 | Virtual (Bengaluru, IN) | Embedded Rust Discord
- Silicon Sundays 3
2026-09-20 | Virtual (Dallas, TX, US) | Dallas Rust User Meetup
- Rust Deep Learning: Third Sunday
2026-09-22 | Virtual (Dallas, TX, US) | Dallas Rust User Meetup
- Fourth Tuesday Rust Bookclub
2026-09-24 | Virtual (Berlin, DE) | Rust Berlin
- Rust Hack and Learn
2026-09-24 | Virtual (Charlottesville, VA, US) | Charlottesville Rust Meetup
- Rust Cells — Interior Mutability from Rust Core to Tock OS
2026-09-29 | Virtual (London, UK) | Women in Rust
- Lunch & Learn: Crates, Tips & Tricks Lightning Talks - Bring your ideas!
2026-09-30 | Virtual (Cardiff, UK) | Rust and C++ Cardiff
- Operating Systems Book Club: Segmentation and Introduction to Paging
2026-10-02 | Virtual | Rust Girona
- Sessió setmanal de codificació / Weekly coding session
2026-10-04 | Virtual (Dallas, TX, US) | Dallas Rust User Meetup
- Rust Deep Learning: First Sunday
2026-10-06 | Virtual (London, UK) | Women in Rust
- 👋 Community Catch Up
2026-10-07 | Virtual (Indianapolis, IN, US) | Indy Rust
- Indy.rs - with Social Distancing
2026-10-08 | Virtual (Berlin, DE) | Rust Berlin
- Rust Hack and Learn
2026-10-08 | Virtual (Nürnberg, DE) | Rust Nuremberg
- Rust Nürnberg online
2026-10-10 | Virtual (Gdansk, PL) | Stacja IT Trójmiasto
- [BEZPŁATNIE] Programowanie w języku Rust
2026-10-13 | Virtual (Dallas, TX, US) | Dallas Rust User Meetup
- Second Tuesday

Europe

2026-09-14 - 2026-09-16 | Berlin, DE | Oxidize 2026
- Oxidize 2026
2026-09-17 | Dortmund, DE | Rust Dortmund
- Rust Dortmund Meetup - From Segfault to Safety @DiWoDo
2026-09-22 | Prague, CZ | Rust Prague
- Rust Meetup Prague @ Rockwell Automation
2026-09-24 | Aarhus, DK | Rust Aarhus
- Talk Night at SkyTEM
2026-09-24 | Amsterdam, NL | Rust Developers Amsterdam Group
- Rust Meetup @ BlockTech
2026-09-24 | Frankfurt, DE | Rust Rhein-Main
- AI Agentic Coding
2026-09-26 | Stockholm, SE | Stockholm Rust
- Ferris' Fika Forum #30
2026-09-28 | Augsburg, DE | Rust Meetup Augsburg
- Rust Meetup #21: Maximilian Grauvogl & Marcel Fink - From Bits to Bugs: A Rust generator for SUIT Manifests and Structure-Aware Parser Fuzzing
2026-09-29 | Manchester, UK | Rust Manchester
- Rust Manchester September Code Night
2026-09-30 | Basel, CH | Rust Basel
- Rust Meetup #16 @ ERNI
2026-10-05 | München, DE | Rust Munich
- Rust Munich 2026 / 3
2026-10-08 | Oslo, NO | Rust Oslo
- Rust Hack'n'Learn at Kampen Bistro
2026-10-10 | Geneva, CH | Rust Geneva
- Rust Meetup Geneva
2026-10-14 | Barcelona, ES | BcnRust
- 22nd bcnrust session

North America

2026-09-16 | Hybrid (Vancouver, CA) | Vancouver Rust
- Building a Rust GPU driver in the Linux kernel
2026-09-16 | San Francisco, CA, US | Bay Area Rust
- Bay Area Rust - Graphics Meetup
2026-09-17 | Hybrid (Seattle, WA, US) | Seattle Rust User Group
- September, 2026 SRUG (Seattle Rust User Group) Meetup
2026-09-17 | Mountain View, CA, US | Hacker Dojo
- RUST MEETUP at HACKER DOJO
2026-09-19 | Boston, MA, US | Boston Rust Meetup
- Boston Common Rust Lunch, Sep 19
2026-09-22 | Chicago, IL, US | Chicago Rust Meetup
- Rust Happy Hour
2026-09-23 | Austin, TX, US | Rust ATX
- Rust Lunch - Fareground
2026-09-23 | Austin, TX, US | Rust ATX
- Rust Lunch - Fareground
2026-09-24 | Atlanta, GA, US | Rust Atlanta
- Rust-Atl
2026-09-26 | Boston, MA, US | Boston Rust Meetup
- Harvard Rust Lunch, Sep 26
2026-10-01 | Saint Louis, MO, US | STL Rust
- Building a Minimal, Rootless Container in Rust
2026-10-03 | Boston, MA, US | Boston Rust Meetup
- Alewife Rust Lunch, Oct 3
2026-10-08 | San Diego, CA, US | San Diego Rust
- San Diego Rust October Meetup - Back in person!
2026-10-10 | Boston, MA, US | Boston Rust Meetup
- Back Bay Rust Lunch, Oct 10
2026-10-14 | Los Angeles, CA, US | Rust Los Angeles
- Rust LA October: AI & Rust w/ Oxen.AI & Origin Lab!

Oceania

2026-09-29 | Barton, AU | Canberra Rust User Group
- September Meetup

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.

Jobs

Please see the latest Who's Hiring thread on r/rust

Quote of the Week

Every so often I am told about some maths fact that I can only assume someone went to prison for discovering

– Simon Buchan

Thanks to Chayim Refael Friedman for the suggestion!

Please submit quotes and vote for next week!

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