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Oct 25, 2017
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CotW & notable changes #540

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60 changes: 23 additions & 37 deletions drafts/2017-10-24-this-week-in-rust.md
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Expand Up @@ -21,8 +21,7 @@ If you find any errors in this week's issue, [please submit a PR](https://github

# Crate of the Week

This week's crate is [if_chain](https://crates.io/crates/if_chain) a macro that helps combat rightwards drift where code nests many `if`s and `if let`s. Since the
latter cannot be contracted with `&&`, this can be really helpful to make code more readable. Thanks to [Michael Budde](https://users.rust-lang.org/u/mbudde) for
This week's crate is [colored](https://crates.io/crates/colored) a UNIX-based terminal color crate. Thanks to [Kyle Galloway](https://users.rust-lang.org/u/kylegalloway) for
the suggestion.

[Submit your suggestions and votes for next week][submit_crate]!
Expand Down Expand Up @@ -56,41 +55,28 @@ If you are a Rust project owner and are looking for contributors, please submit

# Updates from Rust Core

163 pull requests were [merged in the last week][merged]

[merged]: https://github.com/search?q=is%3Apr+org%3Arust-lang+is%3Amerged+merged%3A2017-10-09..2017-10-16

* [add `x86_64-unknown-linux-gnux32` target](https://github.com/rust-lang/rust/pull/45224)
* [inline `eq_slice` into `str::eq`](https://github.com/rust-lang/rust/pull/45005)
* [MIR-borrowck: moves of prefixes invalidate uses too](https://github.com/rust-lang/rust/pull/45025)
* [MIR borrowck: print lvalues in error messages in the same way that the AST borrowck](https://github.com/rust-lang/rust/pull/44985)
* [MIR-borrowck: add false edges to match arms](https://github.com/rust-lang/rust/pull/45200)
* [MIR-borrowck: migrate remaining AST diagnostics](https://github.com/rust-lang/rust/pull/45167)
* [querify `trans_fulfill_obligation`](https://github.com/rust-lang/rust/pull/44967)
* [querify Vtable methods](https://github.com/rust-lang/rust/pull/45137)
* [check namespaces when resolving associated items in typeck](https://github.com/rust-lang/rust/pull/45297)
* [rustc: Remove `used_mut_nodes` from `TyCtxt`](https://github.com/rust-lang/rust/pull/45283)
* [rustc: Fix some ThinLTO internalization](https://github.com/rust-lang/rust/pull/45215)
* [rustc: Update LLVM with a ThinLTO fix](https://github.com/rust-lang/rust/pull/45203)
* [rustc: Handle `#[inline(always)]` at `-O0`](https://github.com/rust-lang/rust/pull/45202)
* [rustc: Don't inline in CGUs at `-O0`](https://github.com/rust-lang/rust/pull/45075)
* [rustc: Reduce default CGUs to 16](https://github.com/rust-lang/rust/pull/45064)
* [incremental compilation auto assert (with except)](https://github.com/rust-lang/rust/pull/45104)
* [incremental compilation: Bring back output of -Zincremental-info](https://github.com/rust-lang/rust/pull/45063)
* [ensure `std::mem::Discriminant` is `Send + Sync`](https://github.com/rust-lang/rust/pull/45095)
* [fix `TcpStream::connect_timeout` on linux](https://github.com/rust-lang/rust/pull/45269)
* [improve performance of `spsc_queue` and stream](https://github.com/rust-lang/rust/pull/44963)
* [improve raw `Box` conversions](https://github.com/rust-lang/rust/pull/44877)
* [some hashmap cleanups](https://github.com/rust-lang/rust/pull/45263)
* [optimize comparison functions of `Iterator`](https://github.com/rust-lang/rust/pull/45007)
* [compiletest/runtest: format `ErrorKind` with `Display`](https://github.com/rust-lang/rust/pull/45258)
* [implement display_hint in gdb pretty printers](https://github.com/rust-lang/rust/pull/45071)
* [some low-hanging rustdoc optimizations](https://github.com/rust-lang/rust/pull/44613)
* [rustdoc: mobile sidebar improvements](https://github.com/rust-lang/rust/pull/45240)
* [let rustdoc print the crate version into docs](https://github.com/rust-lang/rust/pull/44989)
* [incr.comp.: Introduce `ensure` and `ensure` typeck_tables_of](https://github.com/rust-lang/rust/pull/45228)
* [enable building clippy in CI](https://github.com/rust-lang/rust/pull/45177) (one more step towards stable clippy!)
* [update grammar to parse current rust syntax](https://github.com/rust-lang/rust/pull/45125) (Language lawyers rejoice!)
121 pull requests were [merged in the last week][merged]

[merged]: https://github.com/search?q=is%3Apr+org%3Arust-lang+is%3Amerged+merged%3A2017-10-16..2017-10-23

* [rustbuild: Compile rustc with ThinLTO](https://github.com/rust-lang/rust/pull/45400)
* [code suggestions for non-shorthand field pattern, no-mangle lints](https://github.com/rust-lang/rust/pull/45232)
* [cleanly error for non-const variable in associated const](https://github.com/rust-lang/rust/pull/45442)
* [remove or encapsulate the remaining non-query data in tcx](https://github.com/rust-lang/rust/pull/44501)
* [make `erase_regions_ty` query anonymous](https://github.com/rust-lang/rust/pull/45364)
* [bump the minimum LLVM to 3.9](https://github.com/rust-lang/rust/pull/45326)
* [backport ThinLTO LLVM 5 fixes](https://github.com/rust-lang/rust/pull/45301)
* [rustc: Move bytecode compression into codegen](https://github.com/rust-lang/rust/pull/45399)
* [rustc: Add `_imp_` symbols later in compilation](https://github.com/rust-lang/rust/pull/45348)
* [incr.comp.: Use 128bit SipHash for fingerprinting](https://github.com/rust-lang/rust/pull/45319)
* [mark block exits as reachable if the block can break](https://github.com/rust-lang/rust/pull/45316)
* [avoid unnecessary allocas for indirect function arguments](https://github.com/rust-lang/rust/pull/44573)
* [std: Update randomness implementation on Windows](https://github.com/rust-lang/rust/pull/45370)
* [fix a few bugs in drop generation](https://github.com/rust-lang/rust/pull/45359)
* [introduce pthread_cancel() for terminating threads](https://github.com/rust-lang/libc/pull/810)
* [fix ABI breakage in syscall constants](https://github.com/rust-lang/libc/pull/815)
* [fix most rendering warnings from switching to CommonMark](https://github.com/rust-lang/rust/pull/45419)
* [allow cargo install --version as well (preferred)](https://github.com/rust-lang/cargo/pull/4637)

## New Contributors

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