This Week in Rust 610
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.
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Updates from Rust Community
Foundation
RustConf 2025 is Almost Here — Register Now!
Project/Tooling Updates
Embedded DHT Sensor Library
Rust eBooks Nightly: always up-to-date Rust books in EPUB, AZW3, MOBI, PDF
git-cliff 2.10.0 is released! (a highly customizable changelog generator)
Nutype 0.6.2 - supports derive_unsafe attribute to derive arbitrary third party traits.
Observations/Thoughts
Rust Async Web Framework Performance Breakthrough(9247)
Rust Walkthroughs
Using ESP32 as a Rust Beginner
The Signal Protocol Explained #2: Implementing the Double Ratchet Algorithm in Rust
Vibe coding a Rust MCP proxy in VSCode with GitHub Copilot
Programming Extensible Data Types in Rust with CGP - Part 4
Miscellaneous
100 Exercises to Learn Rust: RustRover Edition
Stackoverflow Survey: Rust is yet again the most admired programming language
Crate of the Week
This week's crate is qop, a standalone SQL migration tool.
Thanks to Alexander Weber 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, Rust language RFCs, Cargo or Rustup.
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 X (formerly Twitter) 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 X (formerly Twitter) or Mastodon!
Updates from the Rust Project
428 pull requests were merged in the last week
Compiler
avoid unnecessary new_adt/new_fn_def calls
loop_match: suggest extracting to a const item
Library
add Rev::into_inner
str: mark unstable round_char_boundary feature functions as const
Cargo
schema: Expose IndexPackage, the description of a package within a Registry Index
allow using Cargo-as-a-library with gix's reqwest backend
fix: no-proc-macro is overridden by subsequent edges
timings: make graphs scalable to user's window
use gix for cargo package
Rustdoc
rustdoc: add ways of collapsing all impl blocks
Clippy
cast-lossless should not suggest when casting type is from macro input
correct help message for arc_with_non_send_sync
detect prefixed attributes as duplicated
fix empty_structs_with_brackets suggesting wrongly on generics
fix if_then_some_else_none false positive when require type coercion
fix ip_constant when call wrapped in extra parens
fix let_unit_value suggesting wrongly for format macros
fix match_single_binding wrongly handling scope
fix module_name_repetitions false positive on exported macros
fix unused_async false positive on function with todo!
unnecessary_map_or: don't add parens if the parent expr…
Rust-Analyzer
add ide-assist: generate_impl_trait for generate_impl
change rename self to parameter use Self type
fix generate_trait_from_impl whitespace after vis
fix fold doc comment for multiline param list fn
consider all produced artifacts for proc-macro dylib search
fix incorrect build script version check
fix runnables extra env not substituting env vars
ignore Destruct bounds again
parse for<'a> [const]
use TempDir for copied lockfiles
Rust Compiler Performance Triage
A week with lots of mixed results, including a few benchmarks that appear to be newly bimodal, which made some of the results look closer to noise than signal. Overall, however, the week ended as a slight improvement.
Triage done by @simulacrum. Revision range: 3f9f20f7..e3514bde
1 Regressions, 2 Improvements, 9 Mixed; 2 of them in rollups 38 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
Allow the global allocator to use thread-local storage and std::thread::current()
Tracking Issue for str::{floor, ceil}_char_boundary
Check coroutine upvars in dtorck constraint
Tracking Issue for arithmetic and certain bitwise ops on AtomicPtr
Add lint against dangling pointers from local variables
apply_member_constraints: fix placeholder check
[Remove the #[no_sanitize] attribute in favor of #[sanitize(xyz = "on|off")]](https://github.com/rust-lang/rust/pull/142681)
Port #[should_panic] to the new attribute parsing infrastructure
emit StorageLive and schedule StorageDead for let - else's bindings after matching
lower pattern bindings in the order they're written and base drop order on primary bindings' order
Upgrade semicolon_in_expressions_from_macros from warn to deny
Stabilize const TypeId::of
Mark all deprecation lints in name resolution as deny-by-default and report-in-deps
Tracking Issue for arithmetic that panics on overflow ( strict_* operations)
[rustdoc] Display unsafe attrs with edition 2024 unsafe() wrappers.
Rust RFCs,
Demote x86_64-apple-darwin from Tier 1 to Tier 2 with host tools
RFC: enable derive(From) for single-field structs
No Items entered Final Comment Period this week for Cargo, 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
[new] Demote x86_64-apple-darwin from Tier 1 to Tier 2 with host tools
Upcoming Events
Rusty Events between 2025-07-30 - 2025-08-27 🦀
Virtual
2025-07-30 | Virtual (Cardiff, UK) | Rust and C++ Cardiff
Jan Arends: How to turn Spaghetti Code into a Gourmet Architecture
2025-07-31 | Virtual (Berlin, DE) | Rust Berlin
Rust Hack and Learn
2025-08-02 | Virtual (Kampala, UG) | Rust Circle Meetup
Rust Circle Meetup
2025-08-03 | Virtual (Dallas, TX, US) | Dallas Rust User Meetup
Rust Readers Discord Discussion: Rust Atomics and Locks
2025-08-06 | Virtual (Indianapolis, IN, US) | Indy Rust
Indy.rs - with Social Distancing
2025-08-10 | Virtual (Dallas, TX, US) | Dallas Rust User Meetup
Rust Readers Discord Discussion: Rust Atomics and Locks
2025-08-12 | Virtual (Dallas, TX, US) | Dallas Rust User Meetup
Second Tuesday
2025-08-14 | Hybrid (Seattle, WA, US) | Seattle Rust User Group
August, 2025 SRUG (Seattle Rust User Group) Meetup
2025-08-14 | Virtual (Berlin, DE) | Rust Berlin
Rust Hack and Learn
2025-08-17 | Virtual (Dallas, TX, US) | Dallas Rust User Meetup
Rust Readers Discord Discussion: Rust Atomics and Locks
2025-08-19 | Virtual (Santa Clara, CA, US) | UCSC Extension Community
Programming with Rust
2025-08-19 | Virtual (Washington, DC, US) | Rust DC
Mid-month Rustful
2025-08-20 | Hybrid (Vancouver, BC, CA) | Vancouver Rust
Rust Study/Hack/Hang-out
2025-08-21 | Virtual (Buenos Aires, AR) | Rust en Español
Agosto de Protocol Buffers!
2025-08-21 | Virtual (London, UK) | Conf42: Online Tech Events
Conf42 Rustlang 2025
2025-08-21 | Virtual (Nürnberg, DE) | Rust Nuremberg
Rust Nürnberg online
2025-08-24 | Virtual (Dallas, TX, US) | Dallas Rust User Meetup
Rust Readers Discord Discussion: Rust Atomics and Locks
2025-08-26 | Virtual (Dallas, TX, US) | Dallas Rust User Meetup
Fourth Tuesday
2025-09-02 - 2025-09-05 | Hybrid (Seattle, WA, US) | RustConf
RustConf 2025
Europe
2025-07-30 | Amsterdam, NL | Rust Developers Amsterdam Group
Rust Meetup @ BlockTech
2025-07-31 | Augsburg, DE | Rust Meetup Augsburg
Rust Meetup #14: Prof. Dr. Claudia Meitinger - Embassy - Möglichkeiten und Herausforderungen im Modul "Interdisciplinary Project"
2025-07-31 | Copenhagen, DK | Copenhagen Rust Community
Rust meetup #59
2025-08-06 | Girona, ES | Rust Girona
Rust Girona Hack & Learn 08 2025
2025-08-06 | Oxford, UK | Oxford ACCU/Rust Meetup.
Alastair Harrison: Version control for the agentic age.
2025-08-13 | Cambridge, UK | Cambridge Rust Meetup
Monthly Rust Meetup
2025-08-13 | Reading, UK | Reading Rust Workshop
Reading Rust Meetup
2025-08-16 | Basel, CH | Rust Basel
Rust Embedded - Workshop #4 @letsboot
2025-08-19 | Aarhus, DK | Rust Aarhus
Hack Night - Robot Edition
2025-08-19 | Leipzig, DE | Rust - Modern Systems Programming in Leipzig
Topic TBD
2025-08-21 | Oslo, NO | Rust Oslo
Rust Hack'n'Learn at Kampen Bistro
North America
2025-07-31 | Atlanta, GA, US | Rust Atlanta
Rust-Atl
2025-07-31 | Los Angeles, CA, US | Rust Los Angeles
Rust in Web3 Developer Group
2025-08-01 | Chicago, IL, US | Chicago Rust Meetup
Rust Lunch - Loop Edition
2025-08-02 | Boston, MA, US | Boston Rust Meetup
Central Cambridge Rust Lunch, Aug 2
2025-08-05 | New York, NY, US | Rust NYC
Rust NYC: Validating/Optimizing DB Queries w/Types & Rust in Enterprise AI
2025-08-07 | Montréal, QC, CA | Rust Montréal
August Monthly Social
2025-08-07 | Mountain View, CA, US | Hacker Dojo
RUST MEETUP at HACKER DOJO
2025-08-07 | Saint Louis, MO, US | STL Rust
macros!
2025-08-08 | Boston, MA, US | Boston Rust Meetup
Northeastern Rust Lunch, Aug 8
2025-08-12 | San Francisco, CA, US | San Francisco Rust Study Group
Rust Hacking in Person
2025-08-14 | Hybrid (Seattle, WA, US) | Seattle Rust User Group
August, 2025 SRUG (Seattle Rust User Group) Meetup
2025-08-14 | Lehi, UT, US | Utah Rust
Programming a Fighting Robot in Rust with Rex Magana
2025-08-18 | Denver, CO, US | FOSS Rust Colorado
FOSS Rust Hack Night
2025-08-20 | Hybrid (Vancouver, BC, CA) | Vancouver Rust
Rust Study/Hack/Hang-out
2025-08-21 | Nashville, TN, US | Music City Rust Developers
Rust on Bare Metal Series 2 : Place Holder
2025-08-23 | Boston, MA, US | Boston Rust Meetup
Somerville Union Square Rust Lunch, Aug 23
2025-08-27 | Austin, TX, US | Rust ATX
Rust Lunch - Fareground
2025-09-02 - 2025-09-05 | Hybrid (Seattle, WA, US) | RustConf
RustConf 2025
Oceania
2025-08-11 | Christchurch, NZ | Christchurch Rust Meetup Group
Christchurch Rust Meetup
2025-08-26 | Barton, AU | Canberra Rust User Group
August Meetup
2025-08-27 - 2025-08-30 | Wellington, NZ | Rust Forge
Rust Forge
South America
2025-08-07 | Montevideo, UY | Rust Meetup Uruguay
Rust Uruguay meetup de Agosto
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 same compute logic runs on all targets, written entirely in regular Rust. No shader or kernel languages are used.
– Christian Legnitto on the rust-gpu blog showing off a demo compiling Rust to all major GPU platforms + web.
Despite a lack of suggestions, llogiq is remarkably pleased with his choice.
Please submit quotes and vote for next week!
This Week in Rust is edited by: nellshamrell, llogiq, cdmistman, ericseppanen, extrawurst, U007D, joelmarcey, mariannegoldin, bennyvasquez, bdillo
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Discuss on r/rust
