This Week In Rust 521#

2023-11-15

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 on Twitter 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.

Updates from Rust Community#

Official#

• Faster compilation with the parallel front-end in nightly
• November 2023 Leadership Council Update
• Our Vision for the Rust Specification

Foundation#

• The Rust Foundation to Develop Training and Certification Program

Project/Tooling Updates#

• Slint 1.3 Released with Revamped Native Styles and JavaScript API
• rustc_codegen_gcc: Progress Report #27
• rust-analyzer changelog #207
• breadcrumbs 0.1.4

Observations/Thoughts#

• Why Rust in Production?
• Building a Web App in Rust
• Rust without crates.io
• How I Improved My Rust Compile Times by 75%
• Iterator as an Alias
• What is a team?

Rust Walkthroughs#

• Building and Deploying A Static Site Generator
• Tracking the current active process in Windows with Rust
• Edge IoT with Rust on ESP: MQTT Subscriber
• Building a Central Authentication Server with Rust, PostgreSQL, Kafka and gRPC
• I Got a Milk-V Duo (and It’s Running Rust)
• [video] An Introduction to Veilid, by Christien Rioux
• [video] Code in Rust with RustRover, by Vitaly Bragilevsky
• [video] Create a Dummy GitHub CLI in Rust!

Miscellaneous#

• [audio] RustShip: Corrode.dev and lychee with Matthias Endler

Crate of the Week#

This week's crate is cargo-msrv, a cargo subcommand to find out the Minimum Supported Rust Version (MSRV) of your crate.

llogiq is a bit worried about not having received suggestions for two weeks in a row, but still offers you his choice.

Please submit your suggestions and votes for next week!

Call for Participation#

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.

Updates from the Rust Project#

364 pull requests were merged in the last week

• speed up x clean

• llvm-wrapper: remove include of non-existant Vectorize.h

• rustc_llvm: Link to libkstat on Solaris/SPARC

• add -Zcross-crate-inline-threshold=yes

• add std::hash::{DefaultHasher, RandomState} exports

• add a new download-ci-llvm = if-unchanged option and enable it by default for profile = codegen

• allow configuring the parent GitHub repository

• build a better MIR body when errors are encountered

• compute layout with spans for better cycle errors in coroutines

• compute polonius loan scopes over the region graph

• coverage: avoid creating malformed macro name spans

• coverage: rename the run-coverage test mode to coverage-run

• deny more ~const trait bounds

• extend builtin/auto trait args with error when they have >1 argument

• format macro const literals with pretty printer

• generator layout: ignore fake borrows

• give a better diagnostic for missing parens in Fn* bounds

• handle the case when the change-id isn't found

• improve diagnostic for const ctors in array repeat expressions

• make FatalErrorMarker lower priority than other panics

• on method chain expression failure, look for missing method in earlier segments of the chain

• only instantiate binder during dyn's built-in trait candidate probe once

• only use normalize_param_env when normalizing predicate in check_item_bounds

• patterns: reject raw pointers that are not just integers

• recover from incorrectly ordered/duplicated function keywords

• reorder checks to make sure potential missing expect on Option/Result…

• restore rustc shim error message

• catch stray { in let-chains

• suggest removing ; for ; within let-chains

• thir unsafeck fixes

• warn when using an unstable feature with -Ctarget-feature

• when not finding assoc fn on type, look for builder fn

• miri: data_race: link to docs for 'unusual' race conditions

• miri: freebsd adding getentropy interception support

• miri: implement round.ps and round.pd SSE4.1 intrinsics

• miri: share getentropy shim across various unixes

• miri: treat thread-local statics on main thread as static roots for leakage analysis

• emit #[inline] on derive(Debug)

• stabilize result_option_inspect

• move BorrowedBuf and BorrowedCursor from std:io to core::io

• closure-consuming helper functions for fmt::Debug helpers

• don't panic in <BorrowedCursor as io::Write>::write

• futures: provide a non-destructive mechanism to determine if a sink/stream are paired

• codegen-cranelift: implement AArch64 intrinsics necessary for simd-json

• codegen-cranelift: implement AES-NI and SHA256 crypto intrinsics using inline asm

• codegen-cranelift: implement a lot of SIMD intrinsics

• codegen_gcc: do not emit .eh_frame section if using -Cpanic=abort

• cargo: query{_vec} use IndexSummary

• cargo: add better error message when it can not find the search section

• cargo: add cache garbage collection

• cargo credential: include license files in all published crates

• cargo: do not allow empty feature name

• cargo: make browser links out of HTML file paths

• cargo: filter cargo-credential-* dependencies by OS

• cargo: fix --quiet being used with nested subcommands

• cargo: fix non-deterministic behavior in last-use repopulation

• cargo: do not panic when failed to parse rustc commit-hash

• cargo: preserve jobserver file descriptors on rustc invocation in fix_exec_rustc

• cargo: report more detailed semver errors

• rustdoc: properly elide cross-crate host effect args

• clippy: arc_with_non_send_sync Improve suggested resolution

• clippy: map_identity: respect match ergonomics

• clippy: mod_module_files Don't emit lint for mod.rs in tests

• clippy: add type details to unnecessary_fallible_conversions note

• clippy: destructure Conf in register_lints

• clippy: disable vec_box when using different allocators

• clippy: don't check for late-bound vars, check for escaping bound vars

• clippy: fixes to manual_let_else's divergence check

• clippy: lint needless_borrow and explicit_auto_deref on most union field accesses

• clippy: move suspicious_doc_comments to doc pass

• clippy: replace if_chain with let chains

• rust-analyzer: add config for preferring / ignoring prelude modules when inserting imports

• rust-analyzer: preview adt field when hover

• rust-analyzer: find Self reference

• rust-analyzer: ignore doc(hidden) attr if no body is present

• rust-analyzer: truncate closure capture place for raw pointer

• rust-analyzer: improve check for include macro

Upcoming Events#

Rusty Events between 2023-11-15 - 2023-12-13 🦀

Virtual#

• 2023-11-15 | Virtual (Cardiff, UK)| Rust and C++ Cardiff
  • Building Our Own Locks (Atomics & Locks Chapter 9)
• 2023-11-15 | Virtual (Richmond, VA, US) | Linux Plumbers Conference
  • Rust Microconference in LPC 2023 (Nov 13-16)
• 2023-11-15 | Virtual (Vancouver, BC, CA) | Vancouver Rust
  • Nightly Night: impl Trait in Type Aliases
• 2023-11-16 | Virtual (Charlottesville, NC, US) | Charlottesville Rust Meetup
  • Crafting Interpreters in Rust Collaboratively
• 2023-11-16 | Virtual (San Diego, CA, US) | San Diego Rust
  • San Diego Rust November 2023 Tele-Meetup
• 2023-11-16 | Virtual (Vilnius, LT) | Vilnius Rust and Go Meetup Group
  • Enjoy our first Rust event
• 2023-11-21 | Virtual (Berlin, DE) | OpenTechSchool Berlin
  • Rust Hack and Learn
• 2023-11-21 | Virtual (Washington, DC, US) | Rust DC
  • Mid-month Rustful
• 2023-11-23 | Virtual (Edmonton, AB, CA) | Edmonton R User Group - Yegrug
  • Edmonton R User Group Meetup: R and Rust, like a match made in heaven
• 2023-11-28 | Virtual (Dallas, TX, US) | Dallas Rust
  • Last Tuesday
• 2023-11-29 | Virtual (Cardiff, UK)| Rust and C++ Cardiff
  • Atomics & Locks Book Club Final Chapter! (Chapter 10)
• 2023-11-30 | Virtual (Charlottesville, NC, US) | Charlottesville Rust Meetup
  • Crafting Interpreters in Rust Collaboratively
• 2023-11-30 | Virtual (Dublin, IE) | Rust Dublin
  • Automating expertise with cargo-semver-checks
• 2023-12-01 | Virtual (Cardiff, UK)| Rust and C++ Cardiff
  • Rust & C++ Christmas Game Jam Kick-Off!
• 2023-12-02 | Virtual (Kampala, UG) | Rust Circle Kampala
  • Rust Circle Meetup
• 2023-12-05 | Virtual (Berlin, DE) | OpenTechSchool Berlin
  • Rust Hack and Learn | Mirror
• 2023-12-05 | Virtual (Buffalo, NY, US) | Buffalo Rust Meetup

  • Buffalo Rust User Group, First Tuesdays

Europe#

• 2023-11-21 | Leipzig, DE | Rust - Modern Systems Programming in Leipzig
  • GPU processing in Rust
• 2023-11-23 | Biel/Bienne, CH | Rust Bern
  • Rust Talks Bern @ Biel: Embedded Edition
• 2023-12-07 | Aarhus, DK | Rust Aarhus
  • Rust and Talk at Danske Commodities
• 2023-11-30 | Brussels, BE | Lambda Brussels

  • Lambda Brussels

North America#

• 2023-11-15 | Richmond, VA, US + Virtual | Linux Plumbers Conference
  • Rust Microconference in LPC 2023 (Nov 13-16)
• 2023-11-16 | Mountain View, CA, US | Mountain View Rust Meetup
  • Rust Meetup at Hacker Dojo
• 2023-11-16 | Nashville, TN, US | Music City Rust Developers
  • Python loves Rust!
• 2023-11-16 | Seattle, WA, US | Seattle Rust User Group
  • Seattle Rust User Group Meetup
• 2023-11-21 | San Francisco, CA, US | San Francisco Rust Study Group
  • Rust Hacking in Person
• 2023-11-22 | Austin, TX, US | Rust ATX
  • Rust Lunch - Fareground
• 2023-11-28 | Pasadena, CA, US | Pasadena Thursday Go / Rust
  • Monthly Rust group
• 2023-12-12 | Seattle, WA, US | Cap Hill Rust Coding/Hacking/Learning

  • Rusty Coding/Hacking/Learning Night

Oceania#

• 2023-11-21 | Christchurch, NZ | Christchurch Rust Meetup Group
  • Christchurch Rust meetup meeting
• 2023-11-28 | Canberra, ACT, AU | Rust Canberra
  • November Meetup
• 2023-12-11 | Perth, WA, AU | Rust Perth Meetup Group
  • Rust End of Year Event

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#

I decided to keep learning Rust because I liked the syntax. I liked the speed. I liked the community. I liked it all. It felt like a breath of fresh air: a syntax more intuitive than Python, JavaScript, or C, yet still faster.

– Goren Barak on their blog

Thanks to Goren Barak for the self-suggestion!

Please submit quotes and vote for next week!

This Week in Rust is edited by: nellshamrell, llogiq, cdmistman, ericseppanen, extrawurst, andrewpollack, U007D, kolharsam, joelmarcey, mariannegoldin, bennyvasquez.

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Discuss on r/rust