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Nov 5, 2020
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C/QotW + notable changes #1612

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61 changes: 31 additions & 30 deletions draft/2020-11-4-this-week-in-rust.md
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Expand Up @@ -28,9 +28,9 @@ 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 [rust-gpu](https://github.com/EmbarkStudios/rust-gpu) from Embark Studios, a system to compile Rust code into Vulkan graphics shaders (with other shader types to follow).
This week's crate is [tract](https://github.com/sonos/tract) from Sonos, a neural network inference library, written purely in Rust for models in ONNX, NNEF and TF formats.

Thanks to [Vlad Frolov](https://users.rust-lang.org/t/crate-of-the-week/2704/831) for the suggestion!
Thanks to [Benjamin Minixhofer](https://users.rust-lang.org/t/crate-of-the-week/2704/837) for the suggestion!

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

Expand All @@ -49,31 +49,32 @@ If you are a Rust project owner and are looking for contributors, please submit

# Updates from Rust Core

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

[merged]: https://github.com/search?q=is%3Apr+org%3Arust-lang+is%3Amerged+merged%3A2020-10-19..2020-10-26

* [tweak `if let` suggestion to be more liberal with suggestion and to not ICE](https://github.com/rust-lang/rust/pull/77283)
* [reduce diagram mess in 'match arms have incompatible types' error](https://github.com/rust-lang/rust/pull/78255)
* [tweak match arm semicolon removal suggestion to account for futures](https://github.com/rust-lang/rust/pull/78214)
* [explain where the closure return type was inferred](https://github.com/rust-lang/rust/pull/78235)
* [rewrite `collect_tokens` implementations to use a flattened buffer](https://github.com/rust-lang/rust/pull/77250)
* [fix trait solving ICEs](https://github.com/rust-lang/rust/pull/77720)
* [stop promoting union field accesses in 'const'](https://github.com/rust-lang/rust/pull/77526)
* [ensure that statics are inhabited](https://github.com/rust-lang/rust/pull/78324)
* [rustc_mir: track inlined callees in `SourceScopeData`](https://github.com/rust-lang/rust/pull/68965)
* [optimize const value interning for ZST types](https://github.com/rust-lang/rust/pull/78061)
* [calculate visibilities once in resolve](https://github.com/rust-lang/rust/pull/78077)
* [mir-opt: disable MatchBranchSimplification](https://github.com/rust-lang/rust/pull/78151)
* [implement `TryFrom` between `NonZero` types](https://github.com/rust-lang/rust/pull/77339)
* [add `Pin::static_ref`, `static_mut`](https://github.com/rust-lang/rust/pull/77726)
* [support custom allocators in `Box`](https://github.com/rust-lang/rust/pull/77187)
* [hashbrown: parametrize RawTable, HashSet and HashMap over an allocator](https://github.com/rust-lang/hashbrown/pull/133)
* [rustdoc: greatly improve display for small mobile devices screens](https://github.com/rust-lang/rust/pull/78084)
* [clippy: add linter for a single element for loop](https://github.com/rust-lang/rust-clippy/pull/6109)
* [clippy: add lint for `&mut Mutex::lock`](https://github.com/rust-lang/rust-clippy/pull/6103)
* [clippy: add new lint for undropped `ManuallyDrop` values](https://github.com/rust-lang/rust-clippy/pull/6181)
* [clippy: lint unnecessary int-to-int and float-to-float casts](https://github.com/rust-lang/rust-clippy/pull/6187)
374 pull requests were [merged in the last week][merged]

[merged]: https://github.com/search?q=is%3Apr+org%3Arust-lang+is%3Amerged+merged%3A2020-10-26..2020-11-02

* [add cg_clif as optional codegen backend](https://github.com/rust-lang/rust/pull/77975) (Woohoo!)
* [rustc_span: improve bounds checks in byte_pos_to_line_and_col](https://github.com/rust-lang/rust/pull/78423)
* [adjust turbofish help message for const generics](https://github.com/rust-lang/rust/pull/78460)
* [avoid complex diagnostics in snippets which contain newlines](https://github.com/rust-lang/rust/pull/75020)
* [suggest calling await on method call and field access](https://github.com/rust-lang/rust/pull/78297)
* [fix control flow check for breaking with diverging values](https://github.com/rust-lang/rust/pull/77317)
* [uplift `temporary-cstring-as-ptr` lint from clippy into rustc](https://github.com/rust-lang/rust/pull/75671)
* [check object safety of generic constants](https://github.com/rust-lang/rust/pull/78365)
* [chalk: make max goal size for recursive solver configurable](https://github.com/rust-lang/chalk/pull/647)
* [coherence check perf: iterate over the smaller list](https://github.com/rust-lang/rust/pull/78323)
* [optimise align_offset for stride=1 further](https://github.com/rust-lang/rust/pull/75728)
* [inline `NonZeroN::from(n)`](https://github.com/rust-lang/rust/pull/78491)
* [inline Default::default() for atomics](https://github.com/rust-lang/rust/pull/78621)
* [inline some functions in core::str](https://github.com/rust-lang/rust/pull/78073)
* [prevent `String::retain` from creating non-utf8 strings when abusing panic](https://github.com/rust-lang/rust/pull/78499)
* [add `fetch_update` methods to `AtomicBool` and `AtomicPtr`](https://github.com/rust-lang/rust/pull/78637)
* [add `[T]::as_chunks`(`_mut`)](https://github.com/rust-lang/rust/pull/76635)
* [fix `Box::into_unique`](https://github.com/rust-lang/rust/pull/78446)
* [hashbrown: better branch likelyness on stable](https://github.com/rust-lang/hashbrown/pull/209)
* [futures: add `WeakShared`](https://github.com/rust-lang/futures-rs/pull/2169)
* [cargo: add a future-compatibility warning on allowed feature name characters](https://github.com/rust-lang/cargo/pull/8814)
* [cargo: new namespaced features implementation](https://github.com/rust-lang/cargo/pull/8799)

## Rust Compiler Performance Triage

Expand Down Expand Up @@ -139,11 +140,11 @@ Email the [Rust Community Team][community] for access.

# Quote of the Week

> what many devs often miss initially when talking about Rust is that it isn't just about the design & details of the language (which is great), Rust's super power is that in combination with its fantastic community & ecosystem, and the amazing friendly people that create & form it
> Like other languages Rust does have footguns. The difference is that we keep ours locked up in the unsafe.

– [Johann Andersson on twitter](https://mobile.twitter.com/repi)
– [Ted Mielczarek on twitter](https://twitter.com/TedMielczarek/status/1322618223980892161)

llogiq is pretty pleased with his own suggestion and unanimously voted for it.
Thanks to [Nikolai Vazquez](https://users.rust-lang.org/t/twir-quote-of-the-week/328/956) for the suggestion.

[Please submit quotes and vote for next week!](https://users.rust-lang.org/t/twir-quote-of-the-week/328)

Expand Down