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Title: This Week in Rust 438
Number: 438
Date: 2022-04-13
Category: This Week in Rust
Hello and welcome to another issue of *This Week in Rust*!
[Rust](http://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? Tweet us at [@ThisWeekInRust](https://twitter.com/ThisWeekInRust) 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).
If you find any errors in this week's issue, [please submit a PR](https://github.com/rust-lang/this-week-in-rust/pulls).
## Updates from Rust Community
### Official
* [Announcing Rust 1.60.0](https://blog.rust-lang.org/2022/04/07/Rust-1.60.0.html)
* [Lang team April update](https://blog.rust-lang.org/inside-rust/2022/04/06/lang-team-april-update.html)
### Foundation
* [Member Spotlight: Tangram Vision](https://foundation.rust-lang.org/news/2022-04-11-member-spotlight-tangram-vision/)
### Project/Tooling Updates
* [rust-analyzer changelog #124](https://rust-analyzer.github.io/thisweek/2022/04/11/changelog-124.html)
* [IntelliJ Rust Changelog #168](https://intellij-rust.github.io/2022/04/11/changelog-168.html)
* [Ogma v0.3 release - now with type inference!](https://www.kurtlawrence.info/blog/ogma-v03-release-now-with-type-inference)
* [Slint (GUI crate) weekly update](https://slint-ui.com/thisweek/2022-04-11.html)
* [Introducing FoundationDB Client API for Tokio](https://fdb-rs.github.io/blog/introducing-fdb-crate/)
* [Introducing PCB-rs : Making it easier to write hardware](https://dev.to/yjdoc2/introducing-pcb-rs-making-it-easier-to-write-hardware-397m)
* [Fornjot (Code-CAD in Rust) - Weekly Dev Log - 2022-W14](https://www.fornjot.app/blog/weekly-dev-log/2022-w14/)
* [Fazi - a drop-in replacement for libfuzzer](https://www.reddit.com/r/rust/comments/u1el9n/release_fazi_a_dropin_replacement_for_libfuzzer/)
* [This Month in Rust OSDev (March 2022) | Rust OSDev](https://rust-osdev.com/this-month/2022-03/)
* [This week in Fluvio #28: the programmable streaming platform](https://www.fluvio.io/news/this-week-in-fluvio-0028/)
* [This week in Databend #36: A Modern Cloud Data Warehouse for Everyone](https://weekly.databend.rs/2022-04-06-databend-weekly/)
* [This week in Databend #37: A Modern Cloud Data Warehouse for Everyone](https://weekly.databend.rs/2022-04-13-databend-weekly/)
### Newsletters
* [This Month in Rust GameDev #32 - March 2022](https://gamedev.rs/news/032/)
### Observations/Thoughts
* [Defaults Affect Inference in Rust: Expressions Instead Of Types](https://gankra.github.io/blah/defaults-affect-inference/)
* [Rust in Action Book Review](https://blog.frankel.ch/rust-action/)
* [What I learned from making a DNS client in Rust](https://blog.adamchalmers.com/making-a-dns-client/)
* [dyn* doesn't need to be special](https://dev.to/cad97/dyn-doesnt-need-to-be-special-3ldm)
* [How to speed up the Rust compiler in April 2022](https://nnethercote.github.io/2022/04/12/how-to-speed-up-the-rust-compiler-in-april-2022.html)
* [Is life too short to fight Rust's borrow checker?](https://kerkour.com/life-is-short-rust-borrow-checker)
* [Learning Rust You Need a Cognitive Frame](https://dev.to/zhanghandong/learning-rust-you-need-a-cognitive-frame-41oa)
* [DE] [Programmiersprache: Rust-Team blickt zwei Jahre nach vorn auf Rust 2024](https://www.heise.de/news/Programmiersprache-Rust-Team-blickt-zwei-Jahre-nach-vorn-auf-Rust-2024-6664059.html)
* [DE] [Programmiersprache Rust 1.60 zeigt Codeabdeckung und sieht Zeitspannen positiv](https://www.heise.de/news/Programmiersprache-Rust-1-60-zeigt-Codeabdeckung-und-sieht-Zeitspannen-positiv-6666628.html)
### Rust Walkthroughs
* [Implied bounds and perfect derive](https://smallcultfollowing.com/babysteps/blog/2022/04/12/implied-bounds-and-perfect-derive/)
* [Postfix Spawn](https://blog.yoshuawuyts.com/postfix-spawn/)
* [Continuous Looper](https://beijaflor.io/blog/04-2022/rust-audio-experiments-5/)
* [Chumsky: A Tutorial](https://github.com/zesterer/chumsky/blob/82d534d2bd52de98dfe828bc84a177de9fd1a245/tutorial.md)
* [Pointers Are Complicated III, or: Pointer-integer casts exposed](https://www.ralfj.de/blog/2022/04/11/provenance-exposed.html)
* [rustdoc: Recent UI and UX changes in generated documentation](https://blog.guillaume-gomez.fr/articles/2022-04-08+rustdoc%3A+Recent+UI+and+UX+changes+in+generated+documentation)
* [Building a crawler in Rust: Associated Types](https://kerkour.com/rust-crawler-associated-types)
* [video] [Perfect Reflections - 034 - The Ray Tracer Challenge](https://www.youtube.com/watch?v=Jr8eXubvKbU)
* [video] [Let's Demystify the Borrow Checker! - Rust 101 Lecture 2](https://www.youtube.com/watch?v=2KM6e3O9V4o)
* [video] [Using Futures to wrap an unsafe USB API to play audio directly - Denver Rust Meetup](https://www.youtube.com/watch?v=r0M4_txi9Fo)
### Miscellaneous
* [audio] [Rustacean Station - Purdy with Marty Jones](https://rustacean-station.org/episode/063-martin-jones/)
* [video] [Rust Gamedev Meetup #15: April 2022](https://www.youtube.com/watch?v=okWFrfaaADs)
## Crate of the Week
This week's crate is [hifitime](https://github.com/nyx-space/hifitime), a high fidelity time management library.
Thanks to [Christopher Rabotin](https://users.rust-lang.org/t/crate-of-the-week/2704/1054) for the self-suggestion.
[Please submit your suggestions and votes for next week][submit_crate]!
[submit_crate]: https://users.rust-lang.org/t/crate-of-the-week/2704
## Call for Participation
Always wanted to contribute to open-source projects but didn't 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.
* [macro_railroad - SynParsing(Error("unrecognized fragment specifier"))](https://github.com/lukaslueg/macro_railroad/issues/25)
* [RustConf 2022 CFP is Open!](https://cfp.rustconf.com/events/rustconf-2022)
* [Rust Foundation Community Grants Program 2022 is accepting applications](https://foundation.rust-lang.org/grants/)
If you are a Rust project owner and are looking for contributors, please submit tasks [here][guidelines].
[guidelines]: https://users.rust-lang.org/t/twir-call-for-participation/4821
## Updates from the Rust Project
373 pull requests were [merged in the last week][merged]
[merged]: https://github.com/search?q=is%3Apr+org%3Arust-lang+is%3Amerged+merged%3A2022-04-04..2022-04-11
* [promote `x86_64-unknown-none` target to Tier 2 and distribute build artifacts](https://github.com/rust-lang/rust/pull/95705)
* [track individual proc-macro expansions in the self-profiler](https://github.com/rust-lang/rust/pull/95473)
* [only suggest removing semicolon when expression is compatible with `impl Trait`](https://github.com/rust-lang/rust/pull/95758)
* [stop flagging unexpected inner attributes as outer ones in certain diagnostics](https://github.com/rust-lang/rust/pull/95189)
* [strict provenance lints](https://github.com/rust-lang/rust/pull/95599)
* [suggest adding a local for vector to fix borrowck errors](https://github.com/rust-lang/rust/pull/95807)
* [suggest derivable trait on E0277 error](https://github.com/rust-lang/rust/pull/95525)
* [suggest replacing `typeof(...)` with an actual type](https://github.com/rust-lang/rust/pull/95784)
* [diagnostics: give a special note for unsafe fn / `Fn`/`FnOnce`/`FnMut`](https://github.com/rust-lang/rust/pull/95663)
* [diagnostics: translation infrastructure](https://github.com/rust-lang/rust/pull/95512)
* [diagnostics: use correct span for const generics](https://github.com/rust-lang/rust/pull/95654)
* [`assert_uninit_valid`: ensure we detect at least arrays of uninhabited types](https://github.com/rust-lang/rust/pull/95374)
* [report opaque type mismatches directly during borrowck of the function instead of within the `type_of` query](https://github.com/rust-lang/rust/pull/95767)
* [call `compute_locs` once per rule](https://github.com/rust-lang/rust/pull/95669)
* [shrink `Nonterminal`](https://github.com/rust-lang/rust/pull/95715)
* [cached stable hash cleanups](https://github.com/rust-lang/rust/pull/95524)
* [remove explicit delimiter token trees from `Delimited`](https://github.com/rust-lang/rust/pull/95797)
* [add new `ThinBox` type for 1 stack pointer wide heap allocated trait objects](https://github.com/rust-lang/rust/pull/90066)
* [enhance `ConstGoto` mir-opt by moving up `StorageDead` statements](https://github.com/rust-lang/rust/pull/95723)
* [miri: add support for `FUTEX_`{`WAIT`, `WAKE`}`_BITSET`](https://github.com/rust-lang/miri/pull/2054)
* [miri: for variadic functions, accept arbitrary trailing arguments](https://github.com/rust-lang/miri/pull/2058)
* [add `<[[T; N]]>::flatten`{`_mut`}](https://github.com/rust-lang/rust/pull/95579)
* [fix unsound `File` methods](https://github.com/rust-lang/rust/pull/95469)
* [replace Linux `Mutex` and `Condvar` with futex based ones](https://github.com/rust-lang/rust/pull/95035)
* [stabilize `Stdin::lines`](https://github.com/rust-lang/rust/pull/95185)
* [use bitwise XOR in `to_ascii_uppercase`](https://github.com/rust-lang/rust/pull/95831)
* [fix: `Vec` leak when capacity is 0](https://github.com/rust-lang/rust/pull/95699)
* [portable-SIMD: use SIMD equality for `PartialEq` on SIMD vectors](https://github.com/rust-lang/portable-simd/pull/274)
* [cargo: part 2 of RFC2906 - allow inheriting from a different `Cargo.toml`](https://github.com/rust-lang/cargo/pull/10517)
* [cargo: part 3 of RFC2906 - Add support for inheriting `license-path`, and `depednency.path`](https://github.com/rust-lang/cargo/pull/10538)
* [cargo: part 4 of RFC2906 - Add support for inheriting `readme`](https://github.com/rust-lang/cargo/pull/10548)
* [rustdoc: early doc link resolution fixes and refactorings](https://github.com/rust-lang/rust/pull/95706)
* [rustdoc: fix empty doc comment with backline ICE](https://github.com/rust-lang/rust/pull/95804)
* [rustdoc: reduce allocations in a `html::markdown` function](https://github.com/rust-lang/rust/pull/95868)
* [clippy: add `err_expect` lint](https://github.com/rust-lang/rust-clippy/pull/8606)
* [clippy: add a lint to detect cast to unsigned for `abs()` and suggest `unsigned_abs()`](https://github.com/rust-lang/rust-clippy/pull/8635)
* [clippy: add lints `drop_non_drop` and `forget_non_drop`](https://github.com/rust-lang/rust-clippy/pull/8630)
* [clippy: new lint `is_digit_ascii_radix`](https://github.com/rust-lang/rust-clippy/pull/8624)
* [clippy: don't lint `iter_with_drain` on references](https://github.com/rust-lang/rust-clippy/pull/8668)
* [clippy: don't lint various match lints when expanded by a proc-macro](https://github.com/rust-lang/rust-clippy/pull/8667)
* [clippy: fix `as_deref_mut` false positives in `needless_option_as_deref`](https://github.com/rust-lang/rust-clippy/pull/8646)
* [clippy: fix `same_functions_in_if_condition` false positive](https://github.com/rust-lang/rust-clippy/pull/8673)
* [clippy: fix `unsound_collection_transmute`](https://github.com/rust-lang/rust-clippy/pull/8648)
* [clippy: fix subtraction overflow in `cast_possible_truncation`](https://github.com/rust-lang/rust-clippy/pull/8687)
* [clippy: fix `unnecessary_cast` suggestion for type aliasses](https://github.com/rust-lang/rust-clippy/pull/8596)
* [clippy: remove overlap between `manual_split_once` and `needless_splitn`](https://github.com/rust-lang/rust-clippy/pull/8631)
* [clippy: suggest `from_utf8_unchecked` in const contexts](https://github.com/rust-lang/rust-clippy/pull/8612)
* [clippy: `indexing_slicing` should not fire if a valid array index comes from a constant function that is evaluated at compile-time](https://github.com/rust-lang/rust-clippy/pull/8588)
* [clippy: `unnecessary_owned_empty_strings`](https://github.com/rust-lang/rust-clippy/pull/8660)
* [clippy: fix false positive in `needless_match`](https://github.com/rust-lang/rust-clippy/pull/8549)
* [clippy: ignore `&x | &y` in `unnested_or_patterns`](https://github.com/rust-lang/rust-clippy/pull/8619)
### Rust Compiler Performance Triage
A week with a large amount of changes in rollups, which makes performance triage difficult. The performance team and the infra team are working on finding ways to automate marking PRs as likely a poor choice for rolling up. Otherwise, the week overall saw a ~1% improvement in incremental check builds, with smaller improvements to incremental debug and release builds. A number of benchmarks have been updated in the last few weeks, which has meant a decrease in the automated noise assessment's algorithm performance, but that should settle out to steady state behavior on its own in the next few days.
Triage done by **@simulacrum**.
Revision range: [949b98ca..4e1927d](https://perf.rust-lang.org/?start=949b98cab8a186b98bf87e64374b8d0848c55271&end=4e1927db3c399fa34dc71992bd5dbec09f945c3d&absolute=false&stat=instructions%3Au)
5 Regressions, 4 Improvements, 7 Mixed; 7 of them in rollups
50 artifact comparisons made in total
[Full report here](https://github.com/rust-lang/rustc-perf/blob/master/triage/2022-04-12.md)
### [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:
* [New Rust attribute to support embedding debugger visualizers](https://github.com/rust-lang/rfcs/pull/3191)
### 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)
* *No RFCs entered Final Comment Period this week.*
#### [Tracking Issues & PRs](https://github.com/rust-lang/rust/issues?q=is%3Aopen+label%3Afinal-comment-period+sort%3Aupdated-desc)
* [disposition: merge] [Check if call return type is visibly uninhabited when building MIR](https://github.com/rust-lang/rust/pull/93313)
### [New and Updated RFCs](https://github.com/rust-lang/rfcs/pulls)
* *No New or Updated RFCs were created this week.*
## Upcoming Events
Rusty Events between 2022-04-13 - 2022-05-11 🦀
### Virtual
* 2022-04-13 | Boulder, CO, US | [Boulder Elixir and Rust](https://www.meetup.com/boulder-elixir-rust/)
* [**Monthly Meetup**](https://www.meetup.com/boulder-elixir-rust/events/zvxcsrydcgbrb/)
* 2022-04-13 | Egg Harbor City, NJ, US | [Neighborhood Math Club](https://www.meetup.com/neighborhood-math-club/)
* [**The Early Rustacean Gets The Worm!**](https://www.meetup.com/neighborhood-math-club/events/kpgpssydcgbrb/)
* 2022-04-13 | Munich, DE | [Rust Munich](https://www.meetup.com/rust-munich/)
* [**Rust Munich 2022 / 1 - hybrid**](https://www.meetup.com/rust-munich/events/283790509/)
* 2022-04-14 | Stuttgart, DE | [Rust Community Stuttgart](https://www.meetup.com/Rust-Community-Stuttgart/)
* [**Rust-Meetup**](https://www.meetup.com/Rust-Community-Stuttgart/events/swgrssydcgbsb/)
* 2022-04-18 | Philadelphia, PA, US | [Rust Philly (Rust Philadelphia)](https://www.meetup.com/RustPhilly/)
* [**Mob Programming: Rome Tools**](https://www.meetup.com/RustPhilly/events/bgqgtsydcgbxb/)
* 2022-04-19 | Washington, DC, US | [Rust DC](https://www.meetup.com/RustDC/)
* [**Mid-month Rustful**](https://www.meetup.com/RustDC/events/vdhxgsydcgbzb/)
* 2022-04-20 | Philadelphia, PA, US | [Rust Philly (Rust Philadelphia)](https://www.meetup.com/RustPhilly/)
* [**Remote Book Club: Rust for Rustaceans Chapter Discussion**](https://www.meetup.com/RustPhilly/events/284644487)
* 2022-04-20 | San Diego, CA, US | [San Diego Rust](https://www.meetup.com/San-Diego-Rust/)
* [**San Diego Rust April 2022 Tele-Meetup**](https://www.meetup.com/San-Diego-Rust/events/284705301/)
* 2022-04-20 | Vancouver, BC, CA | [Vancouver Rust](https://www.meetup.com/Vancouver-Rust/)
* [**Rust Movie/Study/Hack/Hang-out night**](https://www.meetup.com/Vancouver-Rust/events/nwcmpsydcgbbc/)
* 2022-04-21 | Charlottesville, VA, US | [Charlottesville Rust Meetup](https://www.meetup.com/Charlottesville-Rust-Meetup/)
* [**The Rusty Boss--directing the world with Rust, Bluetooth, and a Raspberry Pi**](https://www.meetup.com/Charlottesville-Rust-Meetup/events/284922970)
* 2022-04-23 | Various - EMEA | [Rustfest](https://rustfest.world/)
* [**Rust EMEA Conference**](https://rustfest.world/news/twirf-latam-emea-announcement)
* 2022-04-26 | Berlin, DE | [OpenTechSchool Berlin](https://www.meetup.com/opentechschool-berlin/)
* [**Rust Hack and Learn**](https://www.meetup.com/opentechschool-berlin/events/284399979/)
* 2022-04-26 | Dallas, TX, US | [Dallas Rust](https://www.meetup.com/Dallas-Rust/)
* [**Last Tuesday**](https://www.meetup.com/Dallas-Rust/events/285118431/)
* 2022-04-27 | Stuttgart, DE | [Rust Community Stuttgart](https://www.meetup.com/Rust-Community-Stuttgart/)
* [**Rust-Meetup**](https://www.meetup.com/Rust-Community-Stuttgart/events/qwgrssydcgbkc/)
* 2022-05-03 | Beijing, CN | [WebAssembly and Rust Meetup (Rustlang)](https://www.meetup.com/Wasm-Rust-Meetup/)
* [**Monthly WasmEdge Community Meeting, a CNCF sandbox WebAssembly runtime**](https://www.meetup.com/Wasm-Rust-Meetup/events/jbfnrsydchbfb/)
* 2022-05-03 | Buffalo, NY, US | [Buffalo Rust Meetup](https://www.meetup.com/Buffalo-Rust-Meetup/)
* [**Buffalo Rust User Group, First Tuesdays**](https://www.meetup.com/Buffalo-Rust-Meetup/events/284996307/)
* 2022-05-04 | Indianapolis, IN, US | [Indy Rust](https://www.meetup.com/indyrs/)
* [**Indy.rs - with Social Distancing**](https://www.meetup.com/indyrs/events/285121667/)
* 2022-05-05 | Charlottesville, VA, US | [Charlottesville Rust Meetup](https://www.meetup.com/Charlottesville-Rust-Meetup/)
* [**Dealing with failure: producing and consuming Errors in Rust**](https://www.meetup.com/Charlottesville-Rust-Meetup/events/285078007/)
* 2022-05-10 | Berlin, DE | [OpenTechSchool Berlin](https://www.meetup.com/opentechschool-berlin/)
* [**Rust Hack and Learn**](https://www.meetup.com/opentechschool-berlin/events/284399988/)
* 2022-05-10 | Dallas, TX, US | [Dallas Rust](https://www.meetup.com/Dallas-Rust/)
* [**Second Tuesday**](https://www.meetup.com/Dallas-Rust/events/vqtjcsydchbnb/)
* 2022-05-10 | Rostock, DE | [Altow Academy](https://www.meetup.com/altow-academy/)
* [**7. Rust Meetup Rostock**](https://www.meetup.com/altow-academy/events/283819127/)
* 2022-05-10 | Seattle, WA, US | [Seattle Rust Meetup](https://www.meetup.com/Seattle-Rust-Meetup/)
* [**Monthly meetup**](https://www.meetup.com/Seattle-Rust-Meetup/events/gskksrydchbnb/)
* 2022-05-11 | Boulder, CO, US | [Boulder Elixir and Rust](https://www.meetup.com/boulder-elixir-rust/)
* [**Monthly Meetup**](https://www.meetup.com/boulder-elixir-rust/events/zvxcsrydchbpb/)
### Europe
* 2022-04-13 | Munich, DE | [Rust Munich](https://www.meetup.com/rust-munich/)
* [**Rust Munich 2022 / 1 - hybrid**](https://www.meetup.com/rust-munich/events/283790509/)
* 2022-04-13 | Paris, FR | [Stockly](https://www.welcometothejungle.com/fr/companies/stockly-1)
* [**Rust Meetup in Paris - hosted by Stockly, Qovery & Meilisearch**](https://www.eventbrite.com/e/rust-meetup-in-paris-hosted-by-stockly-qovery-meilisearch-tickets-277690869867)
* 2022-04-14 | Cambridge, UK | [Cambridge Rust Meetup](https://www.meetup.com/Cambridge-Rust-Meetup/)
* [**Cambridge Rust Reboot 2**](https://www.meetup.com/Cambridge-Rust-Meetup/events/284505361/)
* 2022-04-19 | Bristol, UK | [Rust Bristol](https://www.meetup.com/rust-bristol/)
* [**Rust Bristol 🦀 Kickoff (2/2)**](https://www.meetup.com/rust-bristol/events/284704573/)
### North America
* 2022-04-13 | Atlanta, GA, US | [Rust ATL](https://www.meetup.com/Rust-ATL/)
* [**Grab a beer with fellow Rustaceans**](https://www.meetup.com/Rust-ATL/events/pczdssydcgbrb/)
* 2022-04-14 | Columbus, OH, US | [Columbus Rust Society](https://www.meetup.com/columbus-rs/)
* [**Monthly Meeting**](https://www.meetup.com/columbus-rs/events/dpkhgrydcgbsb/)
* 2022-04-19 | 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/wjkjssydcgbzb/)
* 2022-04-27 | Boston, MA, US | [Boston Rust Meetup](https://www.meetup.com/BostonRust/)
* [**Boston Rust Meetup at Amazon**](https://www.meetup.com/BostonRust/events/284808948)
* 2022-05-11 | Atlanta, GA, US | [Rust ATL](https://www.meetup.com/Rust-ATL/)
* [**Grab a beer with fellow Rustaceans**](https://www.meetup.com/Rust-ATL/events/pczdssydchbpb/)
### Oceania
* 2022-04-21 | Melbourne, AUS | [Rust Melbourne](https://www.meetup.com/Rust-Melbourne/)
* [**Rust Melbourne is back!**](https://www.meetup.com/Rust-Melbourne/events/284327357/)
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
# Rust Jobs
**Element**
* [Software Engineer - VoIP (Go/Rust) (Remote)](https://apply.workable.com/elementio/j/5BD58AFB6F/)
**Amazon**
* [Software Development Manager, Builder Tools (London, UK or Berlin, DE)](https://www.amazon.jobs/en/jobs/1977699/software-development-manager-builder-tools)
**dcSpark**
* [Rust Engineer (Remote)](https://apply.workable.com/dcspark/j/47EF5C1E7E/)
**Stockly**
* [Back-end developer (Rust, gRPC, PostgreSQL) (Paris, FR)](https://www.welcometothejungle.com/fr/companies/stockly-1/jobs/back-end-developer-rust-grpc-postgresql_paris)
* [Back-end developer - Engine (Rust, gRPC, PostgreSQL) (Paris, FR)](https://www.welcometothejungle.com/fr/companies/stockly-1/jobs/back-end-developer-engine-team-rust-grpc-postgresql_paris)
**Grover**
* [Senior/Mid Software Engineer - Rust & Python (EU || Remote)](https://boards.greenhouse.io/grover/jobs/4470003003)
* [Machine Learning Engineer - Rust & Python (EU || Remote)](https://boards.greenhouse.io/grover/jobs/4692980003)
* [Data Engineer - Rust & Python (EU || Remote)](https://boards.greenhouse.io/grover/jobs/5041627003)
**Kollider**
* [Senior Frontend Engineer - Rust (Remote)](https://careers.kollider.xyz/senior-frontend-engineer/en)
* [Junior Backend Engineer - Rust (Remote)](https://careers.kollider.xyz/junior-backend-engineer/en)
* [Senior Full Stack Developer - Rust (Remote)](https://careers.kollider.xyz/senior-full-stack-developer/en)
*Tweet us at [@ThisWeekInRust](https://twitter.com/ThisWeekInRust) to get your job offers listed here!*
# Quote of the Week
> Relying on the programmer to always read, comprehend, and remember the documentation – and then do everything right, every time – is how we get bugs.
– [Cliff Biffle on his blog](http://cliffle.com/blog/rust-mutexes/#conclusions)
Thanks to [Brian Kung](https://users.rust-lang.org/t/twir-quote-of-the-week/328/1210) for the suggestion!
[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), [andrewpollack](https://github.com/andrewpollack), [U007D](https://github.com/U007D), [kolharsam](https://github.com/kolharsam), [joelmarcey](https://github.com/joelmarcey), [mariannegoldin](https://github.com/mariannegoldin).*
*Email list hosting is sponsored by [The Rust Foundation](https://foundation.rust-lang.org/)*
<small>[Discuss on r/rust](https://www.reddit.com/r/rust/comments/u3504r/this_week_in_rust_438/)</small>
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