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Title: This Week in Rust 595
Number: 595
Date: 2025-04-16
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).
Want TWIR in your inbox? [Subscribe here](https://this-week-in-rust.us11.list-manage.com/subscribe?u=fd84c1c757e02889a9b08d289&id=0ed8b72485).
## Updates from Rust Community
<!--
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Please read README.md for guidance on submissions.
Each submitted link should be of the form:
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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 RFC implementation is for people to experiment with the
implementation and give feedback, especially before stabilization. The following
RFCs would benefit from user testing before moving forward:
<!-- Calls for Testing go here, use this format:
* [<RFC Topic>](<RFC URL>)
* [Tracking Issue](<Tracking Issue URL>)
* [Testing steps](<Testing Steps URL>)
-->
<!-- or if there are no new or updated RFCs this week, use: -->
<!-- * *No New or Updated RFCs were created this week.* -->
<!-- Remember to remove the `call-for-testing` label from the RFC so that the maintainer can signal for testers again, if desired. -->
### [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 2025-04-16 - 2025-05-14 🦀
### Virtual
* 2025-04-10 | Virtual (Berlin, DE) | [Rust Berlin](https://www.meetup.com/rust-berlin/events/)
* [**Rust Hack and Learn**](https://www.meetup.com/rust-berlin/events/300820298)
* 2025-04-15 | Virtual (Washington, DC, US) | [Rust DC](https://www.meetup.com/rustdc/events/)
* [**Mid-month Rustful**](https://www.meetup.com/rustdc/events/305170698)
* 2025-04-16 | Virtual (Vancouver, BC, CA) | [Vancouver Rust](https://www.meetup.com/vancouver-rust/events/)
* [**Rust Study/Hack/Hang-out**](https://www.meetup.com/vancouver-rust/events/306231500)
* 2025-04-17 | Virtual and In-Person (Redmond, WA, US) | [Seattle Rust User Group](https://www.meetup.com/join-srug/events/)
* [**April, 2025 SRUG (Seattle Rust User Group) Meetup**](https://www.meetup.com/seattle-rust-user-group/events/305658454)
* 2025-04-22 | Virtual (Dallas, TX, US) | [Dallas Rust User Meetup](https://www.meetup.com/dallasrust/events/)
* [**Fourth Tuesday**](https://www.meetup.com/dallasrust/events/305361432)
* 2025-04-23 | Virtual (Cardiff, UK) | [Rust and C++ Cardiff](https://www.meetup.com/rust-and-c-plus-plus-in-cardiff/events/)
* [**Beyond embedded - OS development in Rust**](https://www.meetup.com/rust-and-c-plus-plus-in-cardiff/events/307036053)
* 2025-04-24 | Virtual (Berlin, DE) | [Rust Berlin](https://www.meetup.com/rust-berlin/events/)
* [**Rust Hack and Learn**](https://www.meetup.com/rust-berlin/events/300820299)
* 2025-04-24 | Virtual (Charlottesville, VA, US) | [Charlottesville Rust Meetup](https://www.meetup.com/charlottesville-rust-meetup/events/)
* [**Part 2: Quantum Computers Cant Rust-Proof This!"**](https://www.meetup.com/charlottesville-rust-meetup/events/306679733)
* 2025-05-03 | 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-628763176587)
* 2025-05-05 | Virtual (Tel Aviv-Yafo, IL) | [Rust 🦀 TLV](https://www.meetup.com/rust-tlv/events/)
* [**Tauri: Cross-Platform desktop applications with Rust and web technologies**](https://www.meetup.com/rust-tlv/events/307178592/)
* 2025-05-07 | Virtual (Indianapolis, IN, US) | [Indy Rust](https://www.meetup.com/indyrs/events/)
* [**Indy.rs - with Social Distancing**](https://www.meetup.com/indyrs/events/302031663)
### Asia
* 2025-04-22 | Tel Aviv-Yafo, IL | [Rust 🦀 TLV](https://www.meetup.com/rust-tlv/events/)
* [**In person Rust April 2025 at Braavos in Tel Aviv in collaboration with StarkWare**](https://www.meetup.com/rust-tlv/events/306530984)
### Europe
* 2025-04-09 | Girona, ES | [Rust Girona](https://lu.ma/rust-girona)
* [**Rust Girona Hack & Learn 04 2025**](https://lu.ma/dlvfol30)
* 2025-04-09 | Reading, UK | [Reading Rust Workshop](https://www.meetup.com/reading-rust-workshop/events/)
* [**Reading Rust Meetup**](https://www.meetup.com/reading-rust-workshop/events/305045446)
* 2025-04-10 | Karlsruhe, DE | [Rust Hack & Learn Karlsruhe](https://www.meetup.com/rust-hack-learn-karlsruhe/events/)
* [**Karlsruhe Rust Hack and Learn Meetup bei BlueYonder**](https://www.meetup.com/rust-hack-learn-karlsruhe/events/306682264)
* 2025-04-15 | Leipzig, DE | [Rust - Modern Systems Programming in Leipzig](https://www.meetup.com/rust-modern-systems-programming-in-leipzig/events/)
* [**Topic TBD**](https://www.meetup.com/rust-modern-systems-programming-in-leipzig/events/305741632)
* 2025-04-15 | London, UK | [Women in Rust](https://www.meetup.com/women-in-rust/events/)
* [**WIR x WCC: Finding your voice in Tech**](https://www.meetup.com/women-in-rust/events/306774769)
* 2025-04-19 | Istanbul, TR | [Türkiye Rust Community](https://kommunity.com/turkiye-rust-community/events)
* [**Rust Konf Türkiye**](https://kommunity.com/turkiye-rust-community/events/rust-konf-turkiye-91f7b3a6)
* 2025-04-23 | London, UK | [London Rust Project Group](https://www.meetup.com/london-rust-project-group/events/)
* [**Fusing Python with Rust using raw C bindings**](https://www.meetup.com/london-rust-project-group/events/306644439)
* 2025-04-24 | Aarhus, DK | [Rust Aarhus](https://www.meetup.com/rust-aarhus/events/)
* [**Talk Night at MFT Energy**](https://www.meetup.com/rust-aarhus/events/305809344)
* 2025-04-24 | Edinburgh, UK | [Rust and Friends](https://www.meetup.com/rust-edi/events/)
* [**Rust and Friends (evening pub)**](https://www.meetup.com/rust-and-friends/events/306911347)
* 2025-04-24 | Manchester, UK | [Rust Manchester](https://www.meetup.com/rust-manchester/events/)
* [**Rust Manchester April Code Night**](https://www.meetup.com/rust-manchester/events/306899063)
* 2025-04-25 | Edinburgh, UK | [Rust and Friends](https://www.meetup.com/rust-edi/events/)
* [**Rust and Friends (daytime coffee)**](https://www.meetup.com/rust-and-friends/events/306911357)
* 2025-04-26 | Stockholm, SE | [Stockholm Rust](https://www.meetup.com/stockholm-rust/events/)
* [**Ferris' Fika Forum #11**](https://www.meetup.com/stockholm-rust/events/307164617)
* 2025-04-29 | Paris, FR | [Rust Paris](https://www.meetup.com/rust-paris/events/)
* [**Rust meetup #76**](https://www.meetup.com/rust-paris/events/306952202)
* 2025-04-30 | Frankfurt, DE | [Rust Rhein-Main](https://www.meetup.com/rust-rhein-main/events/)
* [**Kubernetes Operator in Rust**](https://www.meetup.com/rust-rhein-main/events/306772838)
* 2025-05-01 | Nürnberg, DE | [Rust Nuremberg](https://www.meetup.com/rust-noris/events/)
* [**Hackers Hike 0x0**](https://www.meetup.com/rust-noris/events/305522254)
* 2025-05-06 - 2025-05-07 | Paris, FR | [WebAssembly and Rust Meetup](https://www.meetup.com/wasm-rust-meetup/)
* [**GOSIM AI Paris 2025**](https://www.meetup.com/wasm-rust-meetup/events/306530699/)
* 2025-05-07 | Madrid, ES | [MadRust](https://www.meetup.com/madrust/events/)
* [**VII Lenguajes, VII Perspectivas, I Problema**](https://www.meetup.com/madrust/events/307030185)
* 2025-05-07 | Oxford, UK | [Oxford Rust Meetup Group](https://www.meetup.com/oxford-rust-meetup-group/events/)
* [**Oxford Rust and C++ social**](https://www.meetup.com/oxford-rust-meetup-group/events/306541571)
### North America
* 2025-04-09 | Austin, TX, US | [Rust ATX](https://www.meetup.com/rust-atx/events/)
* [**Rust ATX at Arm**](https://www.meetup.com/rust-atx/events/307039679)
* 2025-04-10 | Portland, OR, US | [PDXRust](https://www.meetup.com/pdxrust/events/)
* [**TetaNES: A Vaccination for Rust—No Needle, Just the Borrow Checker**](https://www.meetup.com/pdxrust/events/306714209)
* 2025-04-14 | Boston, MA, US | [Boston Rust Meetup](https://www.meetup.com/bostonrust/events/)
* [**Coolidge Corner Brookline Rust Lunch, Apr 14**](https://www.meetup.com/bostonrust/events/306844334)
* 2025-04-15 | San Francisco, CA, US | [San Francisco Rust Study Group](https://www.meetup.com/san-francisco-rust-study-group/events/)
* [**Rust Hacking in Person**](https://www.meetup.com/san-francisco-rust-study-group/events/307181732)
* 2025-04-17 | Mountain View, CA, US | [Hacker Dojo](https://www.meetup.com/hackerdojo/events/)
* [**RUST MEETUP at HACKER DOJO**](https://www.meetup.com/hackerdojo/events/xdxtqtyhcgbwb)
* 2025-04-17 | Nashville, TN, US | [Music City Rust Developers](https://www.meetup.com/music-city-rust-developers/events/)
* [**Using Rust For Web Series 1 : Why HTMX Is Bad**](https://www.meetup.com/music-city-rust-developers/events/304333092)
* 2025-04-17 | Redmond, WA, US | [Seattle Rust User Group](https://www.meetup.com/join-srug/events/)
* [**April, 2025 SRUG (Seattle Rust User Group) Meetup**](https://www.meetup.com/seattle-rust-user-group/events/305658454)
* 2025-04-23 | Austin, TX, US | [Rust ATX](https://www.meetup.com/rust-atx/events/)
* [**Rust Lunch - Fareground**](https://www.meetup.com/rust-atx/events/307089940)
* 2025-04-23 | Austin, TX, US | [Rust ATX](https://www.meetup.com/rust-atx/events/)
* [**Rust Lunch - Fareground**](https://www.meetup.com/rust-atx/events/xvkdgtyhcgbfc)
* 2025-04-24 | Atlanta, GA, US | [Rust Atlanta](https://www.meetup.com/rust-atl/events/)
* [**3rd 3RD TIME OMG YES!**](https://www.meetup.com/rust-atl/events/307152133)
* 2025-04-25 | Boston, MA, US | [Boston Rust Meetup](https://www.meetup.com/bostonrust/events/)
* [**Ball Square Rust Lunch, Apr 25**](https://www.meetup.com/bostonrust/events/306844343)
* 2025-05-01 | Saint Louis, MO, US | [STL Rust](https://www.meetup.com/stl-rust/events/)
* [**SIUE Capstone Project reflections on Rust**](https://www.meetup.com/stl-rust/events/304026152)
* 2025-05-03 | Boston, MA, US | [Boston Rust Meetup](https://www.meetup.com/bostonrust/events/)
* [**Boston Common Rust Lunch, May 3**](https://www.meetup.com/bostonrust/events/306845368)
### Oceania
* 2025-04-09 | Sydney, NS, AU | [Rust Sydney](https://www.meetup.com/rust-sydney/events/)
* [**Crab 🦀 X 🕳️🐇**](https://www.meetup.com/rust-sydney/events/306978026)
* 2025-04-14 | Christchurch, NZ | [Christchurch Rust Meetup Group](https://www.meetup.com/christchurch-rustlang-meetup-group/events/)
* [**Christchurch Rust Meetup**](https://www.meetup.com/christchurch-rustlang-meetup-group/events/306841248)
* 2025-04-22 | Barton, AC, AU | [Canberra Rust User Group](https://www.meetup.com/rust-canberra/events/)
* [**April Meetup**](https://www.meetup.com/rust-canberra/events/306425557)
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>