Title: This Week in Rust 611
Number: 611
Date: 2025-08-06
Category: This Week in Rust

Hello and welcome to another issue of *This Week in Rust*!
[Rust](https://www.rust-lang.org/) 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](https://bsky.app/profile/thisweekinrust.bsky.social) on Bluesky or
[@ThisWeekinRust](https://mastodon.social/@thisweekinrust) on mastodon.social, or
[send us a pull request](https://github.com/rust-lang/this-week-in-rust).
Want to get involved? [We love contributions](https://github.com/rust-lang/rust/blob/master/CONTRIBUTING.md).

*This Week in Rust* is openly developed [on GitHub](https://github.com/rust-lang/this-week-in-rust) and archives can be viewed at [this-week-in-rust.org](https://this-week-in-rust.org/).
If you find any errors in this week's issue, [please submit a PR](https://github.com/rust-lang/this-week-in-rust/pulls).

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## Updates from Rust Community

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### Official

### Foundation

### Newsletters

### Project/Tooling Updates

### Observations/Thoughts

### Rust Walkthroughs

### Research

### Miscellaneous

## Crate of the Week

<!-- COTW goes here -->

[Please submit your suggestions and votes for next week][submit_crate]!

[submit_crate]: https://users.rust-lang.org/t/crate-of-the-week/2704

## Calls for Testing
An important step for feature 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 feature 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.

<!-- If there are new CfT items this week, use: -->
<!--
  [Repo Name](Repo URL)
    * [<Feature name>](<Feature URL>)
        * [Testing steps](<Testing Steps URL>)
-->
<!-- where `Repo Name` and `Repo URL` are one of:
[Rust](https://github.com/rust-lang/rust/labels/call-for-testing),
[Rust language RFCs](https://github.com/rust-lang/rfcs/issues?q=label%3Acall-for-testing),
[Cargo](https://github.com/rust-lang/cargo/labels/call-for-testing) or
[Rustup](https://github.com/rust-lang/rustup/labels/call-for-testing)
-->

<!-- For all `Repo Names` with no new CfT items this week: use (removing the repos for which new
     CfT items did appear, of course) -->
<!--
* *No calls for testing were issued this week by
  [Rust](https://github.com/rust-lang/rust/labels/call-for-testing),
  [Rust language RFCs](https://github.com/rust-lang/rfcs/issues?q=label%3Acall-for-testing),
  [Cargo](https://github.com/rust-lang/cargo/labels/call-for-testing) or
  [Rustup](https://github.com/rust-lang/rustup/labels/call-for-testing).*
-->
* *No calls for testing were issued this week by [Rust](https://github.com/rust-lang/rust/labels/call-for-testing),
  [Rust language RFCs](https://github.com/rust-lang/rfcs/issues?q=label%3Acall-for-testing),
  [Cargo](https://github.com/rust-lang/cargo/labels/call-for-testing) or
  [Rustup](https://github.com/rust-lang/rustup/labels/call-for-testing).*

[Let us know](https://github.com/rust-lang/this-week-in-rust/issues) if you would like your feature to be tracked as a part of this list.
-->

### [RFCs](https://github.com/rust-lang/rfcs/issues?q=label%3Acall-for-testing)

### [Rust](https://github.com/rust-lang/rust/labels/call-for-testing)

### [Rustup](https://github.com/rust-lang/rustup/labels/call-for-testing)

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.

<!-- CFPs go here, use this format: * [project name - title of issue](URL to issue) -->
<!-- * [ - ]() -->
<!-- or if none - *No Calls for participation were submitted this week.* -->

If you are a Rust project owner and are looking for contributors, please submit tasks [here][guidelines] or through a [PR to TWiR](https://github.com/rust-lang/this-week-in-rust) or by reaching out on [X (formerly Twitter)](https://x.com/ThisWeekInRust) or [Mastodon](https://mastodon.social/@thisweekinrust)!

[guidelines]:https://github.com/rust-lang/this-week-in-rust?tab=readme-ov-file#call-for-participation-guidelines

### 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.

<!-- CFPs go here, use this format: * [**event name**](URL to CFP)| Date CFP closes in YYYY-MM-DD | city,state,country | Date of event in YYYY-MM-DD -->
<!-- or if none - *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](https://github.com/rust-lang/this-week-in-rust) or by reaching out on [X (formerly Twitter)](https://x.com/ThisWeekInRust) or [Mastodon](https://mastodon.social/@thisweekinrust)!

## Updates from the Rust Project

<!-- Rust updates go here -->

### Rust Compiler Performance Triage

<!-- Perf results go here -->

### [Approved RFCs](https://github.com/rust-lang/rfcs/commits/master)

Changes to Rust follow the Rust [RFC (request for comments) process](https://github.com/rust-lang/rfcs#rust-rfcs). These
are the RFCs that were approved for implementation this week:

<!-- Approved RFCs go here, use this format: * [Topic](URL) -->
<!-- or if none were approved this week, use: * *No RFCs were approved this week.* -->
<!-- * []() -->

<!--
### [Approved Major Change Proposals (MCP)](https://forge.rust-lang.org/compiler/mcp.html)
<!~~ MCPs occur infrequently, so this section is commented out by default. ~~>
<!~~ MCPs which have been approved or rejected this week go here, use this format: * [major change accepted|rejected] [Topic](URL) ~~>
-->

### Final Comment Period

Every week, [the team](https://www.rust-lang.org/team.html) announces the 'final comment period' for RFCs and key PRs
which are reaching a decision. Express your opinions now.

#### [RFCs](https://github.com/rust-lang/rfcs/labels/final-comment-period)
<!-- RFCs which have entered FCP go here, use this format: * [disposition: merge|close] [Topic](URL) -->
<!-- or if none entered FCP this week, use: * *No RFCs entered Final Comment Period this week.* -->
<!-- * [disposition: ] []() -->

#### Tracking Issues & PRs
<!-- Tracking Issues which have entered FCP go here, use this format: * [disposition: merge|close] [Topic](URL) -->
<!-- or if none entered FCP this week, use: -->
<!-- * *No Tracking Issues or PRs entered Final Comment Period this week.* -->
<!-- * [disposition: ] []() -->

##### [Rust](https://github.com/rust-lang/rust/issues?q=is%3Aopen+label%3Afinal-comment-period+sort%3Aupdated-desc)

##### [Cargo](https://github.com/rust-lang/cargo/issues?q=is%3Aopen+label%3Afinal-comment-period+sort%3Aupdated-desc)

##### [Language Team](https://github.com/rust-lang/lang-team/issues?q=is%3Aopen+label%3Afinal-comment-period+sort%3Aupdated-desc+)

##### [Language Reference](https://github.com/rust-lang/reference/issues?q=is%3Aopen+label%3Afinal-comment-period+sort%3Aupdated-desc)

##### [Unsafe Code Guidelines](https://github.com/rust-lang/unsafe-code-guidelines/issues?q=is%3Aopen+label%3Afinal-comment-period+sort%3Aupdated-desc)

#### [New and Updated RFCs](https://github.com/rust-lang/rfcs/pulls)
<!-- New or updated RFCs go here, use this format: * [new|updated] [Topic](URL) -->
<!-- or if there are no new or updated RFCs this week, use: -->
<!-- * *No New or Updated RFCs were created this week.* -->
<!-- * [new|updated] []() -->

## Upcoming Events

Rusty Events between 2025-08-06 - 2025-09-03 🦀

### Virtual

- 2025-07-30 | Virtual (Cardiff, UK) | [Rust and C++ Cardiff](https://www.meetup.com/rust-and-c-plus-plus-in-cardiff)
  - [**Jan Arends: How to turn Spaghetti Code into a Gourmet Architecture**](https://www.meetup.com/rust-and-c-plus-plus-in-cardiff/events/310006696)
- 2025-07-31 | Virtual (Berlin, DE) | [Rust Berlin](https://www.meetup.com/rust-berlin)
  - [**Rust Hack and Learn**](https://www.meetup.com/rust-berlin/events/300820306)
- 2025-08-02 | Virtual (Kampala, UG) | [Rust Circle Meetup](https://www.eventbrite.com/o/rust-circle-kampala-65249289033)
  - [**Rust Circle Meetup**](https://www.eventbrite.com/e/rust-circle-meetup-tickets-628763838567)
- 2025-08-03 | Virtual (Dallas, TX, US) | [Dallas Rust User Meetup](https://www.meetup.com/dallasrust)
  - [**Rust Readers Discord Discussion: Rust Atomics and Locks**](https://www.meetup.com/dallasrust/events/bhctrtyhclbfb)
- 2025-08-06 | Virtual (Indianapolis, IN, US) | [Indy Rust](https://www.meetup.com/indyrs)
  - [**Indy.rs - with Social Distancing**](https://www.meetup.com/indyrs/events/wqzhftyhclbjb)
- 2025-08-10 | Virtual (Dallas, TX, US) | [Dallas Rust User Meetup](https://www.meetup.com/dallasrust)
  - [**Rust Readers Discord Discussion: Rust Atomics and Locks**](https://www.meetup.com/dallasrust/events/bhctrtyhclbnb)
- 2025-08-12 | Virtual (Dallas, TX, US) | [Dallas Rust User Meetup](https://www.meetup.com/dallasrust)
  - [**Second Tuesday**](https://www.meetup.com/dallasrust/events/305361531)
- 2025-08-14 | Hybrid (Seattle, WA, US) | [Seattle Rust User Group](https://www.meetup.com/join-srug)
  - [**August, 2025 SRUG (Seattle Rust User Group) Meetup**](https://www.meetup.com/seattle-rust-user-group/events/307698880)
- 2025-08-14 | Virtual (Berlin, DE) | [Rust Berlin](https://www.meetup.com/rust-berlin)
  - [**Rust Hack and Learn**](https://www.meetup.com/rust-berlin/events/300820307)
- 2025-08-17 | Virtual (Dallas, TX, US) | [Dallas Rust User Meetup](https://www.meetup.com/dallasrust)
  - [**Rust Readers Discord Discussion: Rust Atomics and Locks**](https://www.meetup.com/dallasrust/events/310002458)
- 2025-08-19 | Virtual (Santa Clara, CA, US) | [UCSC Extension Community](https://www.meetup.com/ucsc-extension-community/events/)
  - [**Programming with Rust**](https://www.meetup.com/ucsc-extension-community/events/310108013)
- 2025-08-19 | Virtual (Washington, DC, US) | [Rust DC](https://www.meetup.com/rustdc)
  - [**Mid-month Rustful**](https://www.meetup.com/rustdc/events/306757756)
- 2025-08-20 | Hybrid (Vancouver, BC, CA) | [Vancouver Rust](https://www.meetup.com/vancouver-rust)
  - [**Rust Study/Hack/Hang-out**](https://www.meetup.com/vancouver-rust/events/307731032)
- 2025-08-21 | Virtual (Buenos Aires, AR) | [Rust en Español](https://www.meetup.com/rust-argentina)
  - [**Agosto de Protocol Buffers!**](https://www.meetup.com/rust-argentina/events/310019573)
- 2025-08-21 | Virtual (London, UK) | [Conf42: Online Tech Events](https://www.meetup.com/conf42/events/)
  - [**Conf42 Rustlang 2025**](https://www.meetup.com/conf42/events/305437705)
- 2025-08-21 | Virtual (Nürnberg, DE) | [Rust Nuremberg](https://www.meetup.com/rust-noris)
  - [**Rust Nürnberg online**](https://www.meetup.com/rust-noris/events/304567875)
- 2025-08-24 | Virtual (Dallas, TX, US) | [Dallas Rust User Meetup](https://www.meetup.com/dallasrust)
  - [**Rust Readers Discord Discussion: Rust Atomics and Locks**](https://www.meetup.com/dallasrust/events/310002461)
- 2025-08-26 | Virtual (Dallas, TX, US) | [Dallas Rust User Meetup](https://www.meetup.com/dallasrust)
  - [**Fourth Tuesday**](https://www.meetup.com/dallasrust/events/305361442)
- 2025-09-02 - 2025-09-05 | Hybrid (Seattle, WA, US) | [RustConf](https://rustconf.com/)
  - [**RustConf 2025**](https://rustconf.com/)

### Europe

- 2025-07-30 | Amsterdam, NL | [Rust Developers Amsterdam Group](https://www.meetup.com/rust-amsterdam-group)
  - [**Rust Meetup @ BlockTech**](https://www.meetup.com/rust-amsterdam-group/events/308548455)
- 2025-07-31 | Augsburg, DE | [Rust Meetup Augsburg](https://rust-augsburg.github.io/meetup)
  - [**Rust Meetup #14: Prof. Dr. Claudia Meitinger - Embassy - Möglichkeiten und Herausforderungen im Modul "Interdisciplinary Project"**](https://rust-augsburg.github.io/meetup/Meetup_14.html)
- 2025-07-31 | Copenhagen, DK | [Copenhagen Rust Community](https://www.meetup.com/copenhagen-rust-community)
  - [**Rust meetup #59**](https://www.meetup.com/copenhagen-rust-community/events/310147999)
- 2025-08-06 | Girona, ES | [Rust Girona](https://lu.ma/rust-girona)
  - [**Rust Girona Hack & Learn 08 2025**](https://lu.ma/eoydaar9)
- 2025-08-06 | Oxford, UK | [Oxford ACCU/Rust Meetup.](https://www.meetup.com/oxford-rust-meetup-group)
  - [**Alastair Harrison: Version control for the agentic age.**](https://www.meetup.com/oxford-rust-meetup-group/events/310101048)
- 2025-08-13 | Cambridge, UK | [Cambridge Rust Meetup](https://www.meetup.com/cambridge-rust-meetup)
  - [**Monthly Rust Meetup**](https://www.meetup.com/cambridge-rust-meetup/events/310014719)
- 2025-08-13 | Reading, UK | [Reading Rust Workshop](https://www.meetup.com/reading-rust-workshop)
  - [**Reading Rust Meetup**](https://www.meetup.com/reading-rust-workshop/events/308944036)
- 2025-08-16 | Basel, CH | [Rust Basel](https://www.meetup.com/rust-basel)
  - [**Rust Embedded - Workshop #4 @letsboot**](https://www.meetup.com/rust-basel/events/309894848)
- 2025-08-19 | Aarhus, DK | [Rust Aarhus](https://www.meetup.com/rust-aarhus)
  - [**Hack Night - Robot Edition**](https://www.meetup.com/rust-aarhus/events/310039453)
- 2025-08-19 | Leipzig, DE | [Rust - Modern Systems Programming in Leipzig](https://www.meetup.com/rust-modern-systems-programming-in-leipzig)
  - [**Topic TBD**](https://www.meetup.com/rust-modern-systems-programming-in-leipzig/events/308592249)
- 2025-08-21 | Oslo, NO | [Rust Oslo](https://www.meetup.com/rust-oslo)
  - [**Rust Hack'n'Learn at Kampen Bistro**](https://www.meetup.com/rust-oslo/events/310062129)

### North America

- 2025-07-31 | Atlanta, GA, US | [Rust Atlanta](https://www.meetup.com/rust-atl)
  - [**Rust-Atl**](https://www.meetup.com/rust-atl/events/308675947)
- 2025-07-31 | Los Angeles, CA, US | [Rust Los Angeles](https://www.meetup.com/rust-los-angeles)
  - [**Rust in Web3 Developer Group**](https://www.meetup.com/rust-los-angeles/events/310240265)
- 2025-08-01 | Chicago, IL, US | [Chicago Rust Meetup](https://www.meetup.com/chicago-rust-meetup)
  - [**Rust Lunch - Loop Edition**](https://www.meetup.com/chicago-rust-meetup/events/310199297)
- 2025-08-02 | Boston, MA, US | [Boston Rust Meetup](https://www.meetup.com/bostonrust)
  - [**Central Cambridge Rust Lunch, Aug 2**](https://www.meetup.com/bostonrust/events/310106288)
- 2025-08-05 | New York, NY, US | [Rust NYC](https://www.meetup.com/rust-nyc)
  - [**Rust NYC: Validating/Optimizing DB Queries w/Types & Rust in Enterprise AI**](https://www.meetup.com/rust-nyc/events/310107945)
- 2025-08-07 | Montréal, QC, CA | [Rust Montréal](https://www.meetup.com/rust-montreal)
  - [**August Monthly Social**](https://www.meetup.com/rust-montreal/events/310259905)
- 2025-08-07 | Mountain View, CA, US | [Hacker Dojo](https://www.meetup.com/hackerdojo/events/)
  - [**RUST MEETUP at HACKER DOJO**](https://www.meetup.com/hackerdojo/events/310030338)
- 2025-08-07 | Saint Louis, MO, US | [STL Rust](https://www.meetup.com/stl-rust)
  - [**macros!**](https://www.meetup.com/stl-rust/events/306648747)
- 2025-08-08 | Boston, MA, US | [Boston Rust Meetup](https://www.meetup.com/bostonrust)
  - [**Northeastern Rust Lunch, Aug 8**](https://www.meetup.com/bostonrust/events/310106298)
- 2025-08-12 | San Francisco, CA, US | [San Francisco Rust Study Group](https://www.meetup.com/san-francisco-rust-study-group)
  - [**Rust Hacking in Person**](https://www.meetup.com/san-francisco-rust-study-group/events/308284338)
- 2025-08-14 | Hybrid (Seattle, WA, US) | [Seattle Rust User Group](https://www.meetup.com/join-srug)
  - [**August, 2025 SRUG (Seattle Rust User Group) Meetup**](https://www.meetup.com/seattle-rust-user-group/events/307698880)
- 2025-08-14 | Lehi, UT, US | [Utah Rust](https://www.meetup.com/utah-rust)
  - [**Programming a Fighting Robot in Rust with Rex Magana**](https://www.meetup.com/utah-rust/events/310053631)
- 2025-08-18 | Denver, CO, US | [FOSS Rust Colorado](https://mobilizon.us/@foss_rust_colorado/events)
  - [**FOSS Rust Hack Night**](https://mobilizon.us/events/9092695a-89f0-40fa-b3d0-50072827b0ec)
- 2025-08-20 | Hybrid (Vancouver, BC, CA) | [Vancouver Rust](https://www.meetup.com/vancouver-rust)
  - [**Rust Study/Hack/Hang-out**](https://www.meetup.com/vancouver-rust/events/307731032)
- 2025-08-21 | Nashville, TN, US | [Music City Rust Developers](https://www.meetup.com/music-city-rust-developers)
  - [**Rust on Bare Metal Series 2 : Place Holder**](https://www.meetup.com/music-city-rust-developers/events/304333117)
- 2025-08-23 | Boston, MA, US | [Boston Rust Meetup](https://www.meetup.com/bostonrust)
  - [**Somerville Union Square Rust Lunch, Aug 23**](https://www.meetup.com/bostonrust/events/310106302)
- 2025-08-27 | Austin, TX, US | [Rust ATX](https://www.meetup.com/rust-atx)
  - [**Rust Lunch - Fareground**](https://www.meetup.com/rust-atx/events/310205991)
- 2025-09-02 - 2025-09-05 | Hybrid (Seattle, WA, US) | [RustConf](https://rustconf.com/)
  - [**RustConf 2025**](https://rustconf.com/)

### Oceania

- 2025-08-11 | Christchurch, NZ | [Christchurch Rust Meetup Group](https://www.meetup.com/christchurch-rustlang-meetup-group)
  - [**Christchurch Rust Meetup**](https://www.meetup.com/christchurch-rustlang-meetup-group/events/308880707)
- 2025-08-26 | Barton, AU | [Canberra Rust User Group](https://www.meetup.com/rust-canberra)
  - [**August Meetup**](https://www.meetup.com/rust-canberra/events/308746519)
- 2025-08-27 - 2025-08-30 | Wellington, NZ | [Rust Forge](https://rustforgeconf.com/)
  - [**Rust Forge**](https://rustforgeconf.com/)

### South America

- 2025-08-07 | Montevideo, UY | [Rust Meetup Uruguay](https://www.meetup.com/rust-uruguay)
  - [**Rust Uruguay meetup de Agosto**](https://www.meetup.com/rust-uruguay/events/310004109)

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][community] for access.

[calendar]: https://www.google.com/calendar/embed?src=apd9vmbc22egenmtu5l6c5jbfc%40group.calendar.google.com
[community]: mailto:community-team@rust-lang.org

## Jobs
<!--

Rust Jobs:

TWiR has stopped featuring individual job postings. You can read more about this change here:

https://github.com/rust-lang/this-week-in-rust/issues/3412

-->

Please see the latest [Who's Hiring thread on r/rust](INSERT_LINK_HERE)

# Quote of the Week

<!-- QOTW goes here -->

[Please submit quotes and vote for next week!](https://users.rust-lang.org/t/twir-quote-of-the-week/328)

*This Week in Rust is edited by: [nellshamrell](https://github.com/nellshamrell), [llogiq](https://github.com/llogiq), [cdmistman](https://github.com/cdmistman), [ericseppanen](https://github.com/ericseppanen), [extrawurst](https://github.com/extrawurst), [U007D](https://github.com/U007D), [joelmarcey](https://github.com/joelmarcey), [mariannegoldin](https://github.com/mariannegoldin), [bennyvasquez](https://github.com/bennyvasquez), [bdillo](https://github.com/bdillo)*

*Email list hosting is sponsored by [The Rust Foundation](https://foundation.rust-lang.org/)*

<small>[Discuss on r/rust](REDDIT_LINK_HERE)</small>
