draft 295

Author: nasa42

drafts/2019-07-16-this-week-in-rust.md

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+Title: This Week in Rust 295
+Number: 295
+Date: 2019-07-16
+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
+
+# Crate of the Week
+
+This week's CotW is not a crate but [Rustexp](https://rustexp.lpil.uk/) site, a Rust regular expression editor & tester.
+Thanks to [carols10cents](https://github.com/cmr/this-week-in-rust/issues/939) 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.
+
+* [js_int: wasm_bindgen support](https://github.com/jplatte/js_int/issues/7). js_int is JavaScript-interoperable integer types for Rust.
+* [js_int: Add a feature that adds a kind method to ParseIntError](https://github.com/jplatte/js_int/issues/8).
+* [js_int: Implement `std::iter::Sum` for `Int`, `UInt`](https://github.com/jplatte/js_int/issues/10).
+
+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
+
+237 pull requests were [merged in the last week][merged]
+
+[merged]: https://github.com/search?q=is%3Apr+org%3Arust-lang+is%3Amerged+merged%3A2019-07-01..2019-07-08
+
+* [Stabilize support for Profile-guided Optimization](https://github.com/rust-lang/rust/pull/61268) (Hooray!)
+* [Break out of the correct number of scopes in loops](https://github.com/rust-lang/rust/pull/62388)
+* [Improve error span for async type inference error](https://github.com/rust-lang/rust/pull/62383)
+* [Remove `hir::ExprKind::While`](https://github.com/rust-lang/rust/pull/61988)
+* [Generalize impl trait to permit multiple lifetime bounds](https://github.com/rust-lang/rust/pull/61775)
+* [Support stability and deprecation checking for all macros](https://github.com/rust-lang/rust/pull/62042)
+* [Implement `Option::contains` and `Result::contains`](https://github.com/rust-lang/rust/pull/62356)
+* [implement `Iterator::last` via `DoubleEndedIterator::next_back` for some libcore types](https://github.com/rust-lang/rust/pull/62316)
+* [Add `Vec::leak`](https://github.com/rust-lang/rust/pull/62196)
+* [Implement `mem::`{`zeroed`, `uninitialized`} in terms of `MaybeUninit`](https://github.com/rust-lang/rust/pull/62150)
+* [`nth_back` for `chunks_exact`](https://github.com/rust-lang/rust/pull/62064)
+* [Only call the closure parameter of `Iterator::is_sorted_by_key` once per item](https://github.com/rust-lang/rust/pull/62473)
+
+## 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:
+
+*No RFCs were approved this week.*
+
+## 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 are currently in final comment period.*
+
+### [Tracking Issues & PRs](https://github.com/rust-lang/rust/labels/final-comment-period)
+
+* [disposition: merge] [Tracking issue for the `cast` method of raw pointers](https://github.com/rust-lang/rust/issues/60602.)
+* [disposition: merge] [Stabilize todo macro](https://github.com/rust-lang/rust/pull/61879).
+* [disposition: merge] [Add `impl<T> FromIterator<T> for Arc/Rc<[T]>`](https://github.com/rust-lang/rust/pull/61953).
+
+## New RFCs
+
+* [Private registry authentication](https://github.com/rust-lang/rfcs/pull/2719).
+
+# Upcoming Events
+
+### Asia Pacific
+
+* [Jul 23. Wellington, NZ - Rust Wellington - Talk: 5 Essential Traits](https://www.meetup.com/Rust-Wellington/events/262407494/).
+
+### Europe
+
+* [Jun 17. Munich, DE - Rust Munich - Rust Mini Unconference V2](https://www.meetup.com/rust-munich/events/261925415/).
+* [Jul 18. Turin, IT - Mozilla Torino - Gruppo di studio Rust](https://www.meetup.com/Mozilla-Torino/events/258593192).
+* [Jul 24. Berlin, DE - OpenTechSchool Berlin - Rust Hack and Learn](https://www.meetup.com/opentechschool-berlin/events/gkkttqyzkbgc/).
+
+### North America
+
+* [Jul 11. Columbus, OH, US - Columbus Rust Society - Monthly Meeting](https://www.meetup.com/columbus-rs/events/dbcfrpyzkbpb/).
+* [Jul 11. San Diego, CA, US - San Diego Rust July Meetup](https://www.meetup.com/San-Diego-Rust/events/262650307/).
+* [Jul 17. San Francisco, CA, US - Rust in Blockchain San Francisco - In Rust We Trust](https://www.meetup.com/Rust-in-Blockchain-San-Francisco/events/262773260/).
+* [Jul 17. Portland, OR, US - PDXRust - PDX Rust Hack Night (not the usual meetup)](https://www.meetup.com/PDXRust/events/262623734/).
+* [Jul 24. Mexico City, MX - Rust MX - Reunión Julio: Rust y Big data](https://www.meetup.com/Rust-MX/events/262960131/).
+* [Jun 24. Durham, NC, US - Triangle Rustaceans - Project Night & Lightning Talks](https://www.meetup.com/triangle-rustaceans/events/mfglwpyzkbdc/).
+
+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:[email protected]
+
+# Rust Jobs
+
+* [Backend Engineer at Bitski, San Francisco, US](https://angel.co/company/bitski/jobs/366874-backend-engineer).
+* [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
+
+> > Are we trying to steal the JVM’s “compile once run everywhere” concept?
+
+> No, we just borrow it mutably.
+
+– [minno & llogiq on /r/rust](https://reddit.com/r/rust/comments/cap8sy/rust_136_stabilized_the_wasm32wasi_target/etahiix/?context=8&depth=9)
+
+Thanks to [Will Page](https://users.rust-lang.org/t/twir-quote-of-the-week/328/664) 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>