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+Title: This Week in Rust 286
+Number: 286
+Date: 2019-05-14
+Category: This Week in Rust
+
+Hello and welcome to another issue of *This Week in Rust*!
+[Rust](http://rust-lang.org) is a systems language pursuing the trifecta: safety, concurrency, and speed.
+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/cmr/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/cmr/this-week-in-rust).
+If you find any errors in this week's issue, [please submit a PR](https://github.com/cmr/this-week-in-rust/pulls).
+
+# Updates from Rust Community
+
+## News & Blog Posts
+
+* 🎈🎉 [Announcing Rust 1.34.2](https://blog.rust-lang.org/2019/05/14/Rust-1.34.2.html). 🎉🎈
+* [Security advisory for the standard library](https://blog.rust-lang.org/2019/05/13/Security-advisory.html).
+* [Update on the CI investigation](https://internals.rust-lang.org/t/update-on-the-ci-investigation/10056).
+* [2D graphics on modern GPU](https://raphlinus.github.io/rust/graphics/gpu/2019/05/08/modern-2d.html).
+* [Rust patterns: enums instead of booleans](http://blakesmith.me/2019/05/07/rust-patterns-enums-instead-of-booleans.html).
+* [Asymmetric multi-processing on microcontrollers with μAMP](https://blog.japaric.io/microamp/).
+* [State of machine learning in Rust](https://ehsanmkermani.com/2019/05/13/state-of-machine-learning-in-rust/).
+
+# Crate of the Week
+
+This week's crate is [panic-never](https://github.com/japaric/panic-never), a crate to make every panic a link-time error. Thanks to [ehsanmok](https://users.rust-lang.org/t/crate-of-the-week/2704/544) for the suggestion!
+
+[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.
+
+* [Help answer: What are the similarities and differences between C++'s concepts and Rust’s traits](https://users.rust-lang.org/t/twir-call-for-participation/4821/242)?
+
+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 Rust Core
+
+190 pull requests were [merged in the last week][merged]
+
+[merged]: https://github.com/search?q=is%3Apr+org%3Arust-lang+is%3Amerged+merged%3A2019-05-06..2019-05-13
+
+* [Implement built-in `.await` syntax](https://github.com/rust-lang/rust/pull/60586) (Hooray!)
+* [Remove the old await! macro](https://github.com/rust-lang/rust/pull/60675)
+* [Cleanup the .await HIR lowering with .stmt(..)](https://github.com/rust-lang/rust/pull/60733)
+* [Revert "Disable big-endian simd in swap_nonoverlapping_bytes"](https://github.com/rust-lang/rust/pull/60588)
+* [syntax: introduce unescape module](https://github.com/rust-lang/rust/pull/60261)
+* [syntax_pos: Optimize symbol interner pre-filling slightly](https://github.com/rust-lang/rust/pull/60700)
+* [Keep original literal tokens in AST](https://github.com/rust-lang/rust/pull/60679)
+* [Tweak `Symbol` and `InternedString`](https://github.com/rust-lang/rust/pull/60659)
+* [Use `Symbol` more](https://github.com/rust-lang/rust/pull/60630)
+* [Better IO buffer when validating dist hashes](https://github.com/rust-lang/rustup.rs/pull/1845)
+* [Remove `hir::ExprKind::If`](https://github.com/rust-lang/rust/pull/59288)
+* [Optimize HIR map](https://github.com/rust-lang/rust/pull/60246)
+* [Fix HIR printing of existential type](https://github.com/rust-lang/rust/pull/60694)
+* [Const-stabilize `NonNull::dangling` and `NonNull::cast`](https://github.com/rust-lang/rust/pull/60244)
+* [std: Derive `Default` for `io::Cursor`](https://github.com/rust-lang/rust/pull/60234)
+* [cargo: Stabilize offline mode](https://github.com/rust-lang/cargo/pull/6934)
+* [cargo: Always include `Cargo.toml` when packaging](https://github.com/rust-lang/cargo/pull/6925)
+* [Implement the Cargo half of pipelined compilation](https://github.com/rust-lang/cargo/pull/6883)
+* [rustup: More progress bars](https://github.com/rust-lang/rustup.rs/pull/1842)
+
+## Approved RFCs
+
+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:
+
+* [RFC 2603: Symbol Mangling v2](https://github.com/rust-lang/rfcs/pull/2603).
+
+## 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)
+
+* [disposition: merge] [Named custom cargo profiles](https://github.com/rust-lang/rfcs/pull/2678).
+
+### [Tracking Issues & PRs](https://github.com/rust-lang/rust/labels/final-comment-period)
+
+* [disposition: merge] [Tracking issue for VecDeque::rotate_{left|right} (feature vecdeque_rotate)](https://github.com/rust-lang/rust/issues/56686).
+* [disposition: merge] [std: implement `Error` for `Box<dyn Error>`](https://github.com/rust-lang/rust/pull/58974).
+* [disposition: merge] [Stabilize ADX, TBM, and SSE4a target features](https://github.com/rust-lang/rust/pull/60109).
+* [disposition: merge] [Allow null-pointer-optimized enums in FFI if their underlying representation is FFI safe](https://github.com/rust-lang/rust/pull/60300).
+* [disposition: merge] [Stabilize core parts of MaybeUninit](https://github.com/rust-lang/rust/pull/60445).
+
+## New RFCs
+
+* [Deprecate stdlib modules dedicated to numeric constants and move those constants to associated consts](https://github.com/rust-lang/rfcs/pull/2700).
+* [Annotate unwind rust](https://github.com/rust-lang/rfcs/pull/2699).
+
+# Upcoming Events
+
+### Asia
+
+* [May 18. Chennai, IN - Rust Chennai - Monthly meetup - May](https://www.meetup.com/mad-rs/events/261443876/).
+* [May 25. Taipei, TW - Rust Taiwan Meetup](https://www.facebook.com/events/381254712479005/).
+* [May 27. Tokyo, JP - Tokyo Rust Meetup - Rust LT #5](https://rust.connpass.com/event/129406/).
+
+### Europe
+
+* [May 20. Karlsruhe, DE - Rust Hack & Learn](https://www.meetup.com/Rust-Hack-Learn-Karlsruhe/events/261106439/).
+* [May 22. Erlangen, DE - Rust Franken Meetup #0](https://www.meetup.com/Rust-NERF/events/261101152/).
+* [May 22. Hamburg, DE - Rust Hack & Learn May 2019](https://www.meetup.com/Rust-Meetup-Hamburg/events/260454690/).
+* [May 22. Grenoble, FR - FLOSS Grenoble - Rust meetup](https://www.meetup.com/FLOSS-Grenoble/events/261250845/).
+* [May 23. Paris, FR - Rust Paris meetup #45](https://www.meetup.com/Rust-Paris/events/260925527/).
+* [May 29. Berlin, DE - OpenTechSchool Berlin - Rust Hack and Learn](https://www.meetup.com/opentechschool-berlin/events/gkkttqyzhbmc/).
+* [May 28. Vilnius, LT - Rust Vilnius - Rust Safety and Distributed Consensus](https://www.meetup.com/Rust-in-Vilnius/events/260937510/).
+
+### North America
+
+* [May 22. Ann Arbor, US - Ann Arbor Rust Meetup - Monthly Gathering](https://www.meetup.com/Ann-Arbor-Rust-Meetup/events/vsncvqyzhbdc/).
+* [May 22. Mesa, AZ, US - Desert Rust - Rust: Backend Web Frameworks](https://www.meetup.com/Desert-Rustaceans/events/mkwgvqyzhbdc/).
+* [May 27. Durham, NC, US - Triangle Rustaceans - Project Night & Lightning Talks](https://www.meetup.com/triangle-rustaceans/events/mfglwpyzhbkc/).
+* [May 28. Dallas, TX, US - Dallas Rust - Last Tuesday](https://www.meetup.com/Dallas-Rust/events/zfgwzmyzhblc/).
+* [May 29. Vancouver, CA - Vancouver Rust meetup](https://www.meetup.com/Vancouver-Rust/events/fzqqwqyzhbmc/).
+* [May 29. Chicago, IL, US - Chicago Rust Meetup - Unsafe Rust](https://www.meetup.com/Chicago-Rust-Meetup/events/260918979).
+
+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
+
+* [Lead Software Engineer at SE4, Tokyo, JP](https://www.linkedin.com/jobs/cap/view/1162802661/).
+* [Software Engineer - Backend at SISU, San Francisco, US](https://sisu.ai/careers/?gh_jid=4057600002).
+* [Software Engineer at TenX, Singapore](https://tenx.workable.com/jobs/689264).
+* [Blockchain Runtime Engineer at Parity, Berlin, DE or remote](https://www.parity.io/jobs/#berlin-blockchain-runtime-engineer).
+
+*Tweet us at [@ThisWeekInRust](https://twitter.com/ThisWeekInRust) to get your job offers listed here!*
+
+# Quote of the Week
+
+> The big gorilla 3D game framework. Apparently it actually works.
+
+[SimonHeath on Amethyst](https://wiki.alopex.li/AGuideToRustGraphicsLibraries2019)
+
+Thanks to [Magnus Larsen](https://users.rust-lang.org/t/twir-quote-of-the-week/328/640) 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: [nasa42](https://github.com/nasa42), [llogiq](https://github.com/llogiq), and [Flavsditz](https://github.com/Flavsditz).*
+
+<small>[Discuss on r/rust]().</small>