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Cotw, help wanted & notable changes #634

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merged 2 commits into from May 2, 2018
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Cotw, help wanted & notable changes #634

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twir, help wanted & notable changes
llogiq May 2, 2018
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Merge branch 'master' into twir-232
llogiq May 2, 2018
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61 changes: 35 additions & 26 deletions drafts/2018-05-01-this-week-in-rust.md
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Expand Up @@ -18,7 +18,7 @@ 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 [human-panic](https://crates.io/crates/human-panic), a crate to make Rust's error handling usable to end users. Thanks to [Vikrant](https://users.rust-lang.org/u/nasa42) for the suggestion!
This week's crate is [imgref](https://github.com/kornelski/imgref), a trivial Rust struct for interchange of pixel buffers with width, height and stride. Thanks to [Willi Kappler](https://users.rust-lang.org/u/willi_kappler) for the suggestion!

[Submit your suggestions and votes for next week][submit_crate]!

Expand All @@ -33,6 +33,7 @@ Some of these tasks may also have mentors available, visit the task page for mor

* [hard] [tarpaulin: Link error with undefined reference to main on Arch](https://github.com/xd009642/tarpaulin/issues/23). Tarpaulin is a code coverage tool for Rust projects.
* [Clippy](https://github.com/rust-lang-nursery/rust-clippy) has a lot of [good first issues](https://github.com/rust-lang-nursery/rust-clippy/issues?q=is%3Aissue+is%3Aopen+label%3A%22good+first+issue%22) to get started.
* [mutagen has more 'good first issues'](https://github.com/llogiq/mutagen/issues?q=is%3Aopen+is%3Aissue+label%3A%22good+first+issue%22)
* [Get started with these beginner-friendly issues](https://www.rustaceans.org/findwork/starters).

If you are a Rust project owner and are looking for contributors, please submit tasks [here][guidelines].
Expand All @@ -41,31 +42,39 @@ If you are a Rust project owner and are looking for contributors, please submit

# Updates from Rust Core

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

[merged]: https://github.com/search?q=is%3Apr+org%3Arust-lang+is%3Amerged+merged%3A2018-04-16..2018-04-23

* [stabilize x86/x86_64 SIMD](https://github.com/rust-lang/rust/pull/49664) (WOOT!)
* [wasm: increase default stack size to 1MB](https://github.com/rust-lang/rust/pull/50083)
* [std: minimize size of panicking on wasm](https://github.com/rust-lang/rust/pull/49488)
* [remove 'proc' from the reserved keywords list](https://github.com/rust-lang/rust/pull/49699)
* [proc_macro: stay on the "use the cache" path more](https://github.com/rust-lang/rust/pull/50069)
* [work around LLVM debuginfo problem in librustc_driver](https://github.com/rust-lang/rust/pull/49904)
* [avoid allocating when parsing \u{...} literals](https://github.com/rust-lang/rust/pull/50052)
* [parser: do not override syntactic context for dummy spans](https://github.com/rust-lang/rust/pull/50152)
* [lazily evaluate EvalErrorKind::*.into() calls](https://github.com/rust-lang/rust/pull/50051)
* [change the hashcounts in raw `Lit` variants from `usize` to `u16`](https://github.com/rust-lang/rust/pull/49993)
* [remove HIR inlining](https://github.com/rust-lang/rust/pull/49991)
* [properly handle ranges of signed enums using both extremums](https://github.com/rust-lang/rust/pull/49981)
* [update Rhs on ShlAssign to default to Self](https://github.com/rust-lang/rust/pull/49630)
* [add inherent methods in libcore for `[T]`, `[u8]`, `str`, `f32`, and `f64`](https://github.com/rust-lang/rust/pull/49896)
* [implement size_hint for some iterators](https://github.com/rust-lang/cargo/pull/5272)
* [atomic: remove 'Atomic*' from Debug output](https://github.com/rust-lang/rust/pull/48553)
* [replace {`Alloc`, `GlobalAlloc`}`::oom` with a lang item](https://github.com/rust-lang/rust/pull/50144)
* [stabilize a bunch of minor api additions](https://github.com/rust-lang/rust/pull/50017)
* [rustdoc: UI tests for rustdoc](https://github.com/rust-lang/rust/pull/49542)
* [rustdoc: add doc search aliases](https://github.com/rust-lang/rust/pull/49757)
* [cargo: add new metadata fields](https://github.com/rust-lang/cargo/pull/5386)
140 pull requests were [merged in the last week][merged]

[merged]: https://github.com/search?q=is%3Apr+org%3Arust-lang+is%3Amerged+merged%3A2018-04-23..2018-04-30

* [make incremental compilation thread-safe](https://github.com/rust-lang/rust/pull/49732)
* [display correct unused field suggestion for nested struct patterns](https://github.com/rust-lang/rust/pull/50327)
* [improve error message for `#[repr(align=x)]`](https://github.com/rust-lang/rust/pull/50317)
* [don't ICE on tuple struct ctor with incorrect arg count](https://github.com/rust-lang/rust/pull/50257)
* [warn on all erroneous constants](https://github.com/rust-lang/rust/pull/50110)
* [warn on pointless #[derive] in more places](https://github.com/rust-lang/rust/pull/50092)
* [better error message when trying to write default impls](https://github.com/rust-lang/rust/pull/49372)
* [mark `std::str::replace`(`n`) as `#[must_use]`](https://github.com/rust-lang/rust/pull/50177)
* [allow MIR borrowck to catch unused mutable locals](https://github.com/rust-lang/rust/pull/48605)
* [allow `#[inline]` on closures](https://github.com/rust-lang/rust/pull/50273)
* [rustc: emit `uwtable` for allocator shims](https://github.com/rust-lang/rust/pull/50263)
* [make `dump_`{`alloc`,`allocs`,`local`}`()` no-ops when tracing is disabled](https://github.com/rust-lang/rust/pull/50246)
* [implement LazyBTreeMap and use it in a few places](https://github.com/rust-lang/rust/pull/50240)
* [speed up `nearest_common_ancestor`](https://github.com/rust-lang/rust/pull/50106)
* [use `FxHashMap` in `syntax_pos::symbol::Interner::intern`](https://github.com/rust-lang/rust/pull/50174)
* [make `Vec::new` a `const fn`](https://github.com/rust-lang/rust/pull/50233)
* [fix ICE with erroneous `impl Trait` in a trait impl](https://github.com/rust-lang/rust/pull/50227)
* [use enum for approximate suggestions](https://github.com/rust-lang/rust/pull/50204)
* [core: fix overflow in `int::mod_euc` when `self < 0 && rhs == MIN`](https://github.com/rust-lang/rust/pull/50185)
* [remove hack around comparisons of i1 values](https://github.com/rust-lang/rust/pull/50137)
* [stabilize dyn trait](https://github.com/rust-lang/rust/pull/49968)
* [stabilize `std::hint::unreachable_unchecked`](https://github.com/rust-lang/rust/pull/49906)
* [compiletest: detect non-ICE compiler panics](https://github.com/rust-lang/rust/pull/49891)
* [rustc_driver: catch ICEs on the main thread too](https://github.com/rust-lang/rust/pull/49826)
* [add `Cell::update`](https://github.com/rust-lang/rust/pull/49727)
* [treat `repr(Rust)` univariant fieldless enums as ZSTs](https://github.com/rust-lang/rust/pull/49513)
* [std: inline `DefaultResizePolicy::new`](https://github.com/rust-lang/rust/pull/50306)
* [cargo: add target directory parameter --target-dir](https://github.com/rust-lang/cargo/pull/5393)
* [docs: add "the Rustc book"](https://github.com/rust-lang/rust/pull/49707)

## New Contributors

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