Updates from core

Add support for UWP targets
rust-lang/rust/pull/60260

Add riscv32i-unknown-none-elf target
rust-lang/rust/pull/62784

Update wasm32 support for LLVM 9
rust-lang/rust/pull/62809

Move unescape module to rustc_lexer
rust-lang/rust/pull/62851

Make the parser TokenStream more resilient after mismatched delimiter recovery
rust-lang/rust/pull/62887

Improve diagnostics for _ const/static declarations
rust-lang/rust/pull/62804

Avoid ICE when referencing desugared local binding in borrow error
rust-lang/rust/pull/63051

Suggest trait bound on type parameter when it is unconstrained
rust-lang/rust/pull/62772

Allow lifetime elision in Pin<&(mut) Self>
rust-lang/rust/pull/61207

Stop bare trait lint applying to macro call sites
rust-lang/rust/pull/63014

Add note suggesting to borrow a String argument to find
rust-lang/rust/pull/62981

Add method disambiguation help for trait implementation
rust-lang/rust/pull/62921

miri: Enable Intrptrcast by default
rust-lang/miri/pull/851

Don't access a static just for its size and alignment
rust-lang/rust/pull/62982

Use const array repeat expressions for uninit_array
rust-lang/rust/pull/62799

Stabilize the type_name intrinsic in core::any
rust-lang/rust/pull/60066

Constantly improve the Vec(Deque) array PartialEq impls
rust-lang/rust/pull/63061

hashbrown: Do not grow the container if an insertion is on a tombstone
rust-lang/hashbrown/pull/106

rust-bindgen: Cleanup wchar_t layout computation to happen later
rust-lang/rust-bindgen/pull/1596

rustdoc: Make #[doc(include)] relative to the containing file
rust-lang/rust/pull/60938

docs.rs: Fix weird layout workflow issues on firefox
rust-lang/docs.rs/pull/358

Force clippy to run every time (finally!)
rust-lang/cargo/pull/7157

News

The Rust compiler is still getting faster.
blog.mozilla.org

Unsafe as a human-assisted type system.
matklad.github.io

Why does the Rust compiler not optimize code assuming that two mutable references cannot alias?
stackoverflow.com

Python vs Rust for neural networks.
ngoldbaum.github.io

Dependency management and trust scaling.
lucumr.pocoo.org

Crate of the week: async-trait

This week's crate is async-trait, a procedural macro to allow async fns in trait methods.
Thanks to Ehsan M. Kermani for the suggestion!

This week in Rust #298 — 06 aug 2019

https://this-week-in-rust.org/blog/2019/08/06/this-week-in-rust-298/

Updates from core

Avoid ICE when suggestion span is at Eof
rust-lang/rust/pull/62995

On format!() arg count mismatch provide extra info
rust-lang/rust/pull/63121

Syntax: Recover on for ( $pat in $expr ) $block
rust-lang/rust/pull/62928

dead_code: Properly inspect fields in struct patterns with type relative paths
rust-lang/rust/pull/63227

Collect file → edition mapping after AST expansion
rust-lang/rls/pull/1513

Unsupport the await!(future) macro
rust-lang/rust/pull/62293

Round generator sizes to a multiple of their alignment
rust-lang/rust/pull/63208

miri: Fix determining size of an "extra function" allocation
rust-lang/rust/pull/63076

miri: Add misssing 'roundf32' and 'roundf64' intrinsics
rust-lang/miri/pull/885

Impl Debug for Chars
rust-lang/rust/pull/63000

const fn-ify std::any::type_name
rust-lang/rust/pull/63123

hashbrown: Replace FxHash with AHash as the default hasher
rust-lang/hashbrown/pull/97

hashbrown: Experimentally expose RawTable under the "raw" feature
rust-lang/hashbrown/pull/108

rustc: Stabilize options for pipelined compilation
rust-lang/rust/pull/62766

cargo: Enable pipelined compilation by default
rust-lang/cargo/pull/7143

cargo: Improve error message for unmatched prerelease dependencies
rust-lang/cargo/pull/7191

rustdoc: Use doc comments from 'pub use' statements
rust-lang/rust/pull/63048

News

We rewrote our IoT platform in Rust and got away with it.
medium.com/dwelo-r-d

About the future of nphysics: a pure rust 2D and 3D real-time physics engine.
www.patreon.com

Building GTK+ app in Rust for a first time.
turbomack.github.io

Understanding Rust through AVL trees.
francismurillo.github.io

Writing an OS in Rust: Updates in July 2019.
os.phil-opp.com

Rust reverses research ruin.
medium.com/@me_26124

Veloren: A multiplayer voxel RPG written in Rust.
veloren.net

Minimum safe abstractions.
llogiq.github.io

How to serve static files with Rust.
www.steadylearner.com

Rust Rocks NB-IoT! STM32 Blue Pill with Quectel BC95-G on Apache Mynewt.
medium.com/@ly.lee

Crate of the week: broot

This week's crate is broot, a program to show the gist of a directory tree.

This week in Rust #299 — 13 aug 2019

https://this-week-in-rust.org/blog/2019/08/13/this-week-in-rust-299/

Updates from core

Sort the fat LTO modules to produce deterministic output
rust-lang/rust/pull/63352

More explicit diagnostic when using a vec![] in a pattern
rust-lang/rust/pull/63399

Give built-in macros stable addresses in the standard library
rust-lang/rust/pull/63056

Remove gensym in format_args
rust-lang/rust/pull/63114

Cleanup & Simplify stuff in lowering
rust-lang/rust/pull/63432

Revert "Simplify MIR generation for logical ops"
rust-lang/rust/pull/63431

CTFE: Simplify ConstValue by not checking for alignment
rust-lang/rust/pull/63079

Miri: Use ldexp from cmath instead
rust-lang/miri/pull/898

Fix generator size regressions due to optimization
rust-lang/rust/pull/63034

Improve invalid_value lint message
rust-lang/rust/pull/63483

Fix for "ambiguous associated type" issue with ATBs
rust-lang/rust/pull/61919

Add implementations for converting boxed slices into boxed arrays
rust-lang/rust/pull/61515

Add {IoSlice, IoSliceMut}::advance
rust-lang/rust/pull/62987

Stabilize duration_float
rust-lang/rust/pull/62756

Deprecate try! macro
rust-lang/rust/pull/62672

Use internal iteration in the Sum and Product impls of Result and Option
rust-lang/rust/pull/62459

Implement DoubleEndedIterator for iter::{StepBy, Peekable, Take}
rust-lang/rust/pull/61457

Skip roundtrip on few structs on OpenBSD
rust-lang/libc/pull/1456

cargo: Improve error message when using API command with non-remote registry
rust-lang/cargo/pull/7239

News

Tokio alpha release with async & await.
tokio.rs

Await a minute, why bother?
docs.rs

Functional programming jargon in Rust.
functional.works-hub.com

Migrating the TiKV Rust client from futures 0.1 to 0.3.
tikv.org

Updating to async/await.
leshow.github.io

Follow-up to Method on Emulating Higher-Kinded Types (HKTs) in Rust.
https://gist.github.com/edmundsmith/e09d5f473172066c0023ef84ee830cad

Runtime configuration reloading.
vorner.github.io

Parsing Rust strings into slices.
wduquette.github.io

Why is there a large performance impact when looping over an array over 240 elements?
stackoverflow.com

Crate of the week: topgrade

This week's crate is topgrade, a command-line program to upgrade all the things.

This week in Rust #300 — 20 aug 2019

https://this-week-in-rust.org/blog/2019/08/20/this-week-in-rust-300/

Updates from core

Hash the remapped sysroot instead of the original
rust-lang/rust/pull/63505

Make sure that all file loading happens via SourceMap
rust-lang/rust/pull/63525

syntax: Account for CVarArgs being in the argument list
rust-lang/rust/pull/63459

Remove redundant ty fields from mir::Constant and hair::pattern::PatternRange
rust-lang/rust/pull/63495

resolve: Remove remaining special cases from built-in macros
rust-lang/rust/pull/63449

resolve: Properly integrate derives and macro_rules scopes
rust-lang/rust/pull/63667

Point at the right enclosing scope when using await in non-async fn
rust-lang/rust/pull/63509

typeck: Prohibit RPIT types that inherit lifetimes
rust-lang/rust/pull/62849

Handle elision in async fn correctly
rust-lang/rust/pull/63499

When needing type annotations in local bindings, account for impl Trait and closures
rust-lang/rust/pull/63507

Improved error message for break in async block
rust-lang/rust/pull/63659

Suggest Rust 2018 on <expr>.await with no such field
rust-lang/rust/pull/63539

Crank up invalid value lint
rust-lang/rust/pull/63657

Refactor Miri ops (unary, binary) to have more types
rust-lang/rust/pull/63658

Do not generate allocations for zero sized allocations
rust-lang/rust/pull/63635

Feature gate 'yield $expr?' pre-expansion
rust-lang/rust/pull/63545

Provide map_ok and map_err method for Poll>>
rust-lang/rust/pull/63512

Implement Clone, Display for ascii::EscapeDefault
rust-lang/rust/pull/63421

Add APIs for uninitialized Box, Rc, and Arc (Plus get_mut_unchecked)
rust-lang/rust/pull/62451

Reduce the genericity of closures in the iterator traits
rust-lang/rust/pull/62429

Add custom nth_back for Chain
rust-lang/rust/pull/60492

cargo install: Remove orphaned executables
rust-lang/cargo/pull/7246

News

🎈🎉 Announcing Rust 1.37.0. 🎉🎈
blog.rust-lang.org

Announcing async-std beta: an async port of the Rust standard library.
async.rs

How Rust optimizes async/await: Part 1.
tmandry.gitlab.io

System 76 releases new GTK firmware manager written in Rust.
blog.system76.com

Writing a Linux kernel module in Rust.
lizhuohua/linux-kernel-module-rust

Introducing the Rust Game Development Working Group.
rust-gamedev.github.io

Steam wishlist announced for Way of Rhea, a sidescrolling puzzle game written in Rust.
store.steampowered.com

Visual embedded Rust programming with Visual Studio Code.
medium.com/@ly.lee

How to diagnose async apps with tracing.
tokio.rs

Using C libraries in Rust: A practical guide to FFI using bindgen.
medium.com/dwelo-r-d

Pre-/Post-conf events: Sustainable 🚄 train travels from and to RustFest Barcelona.
blog.rustfest.eu

<_>::v::<_> - A fun little piece of Rust artwork.
chrismorgan.info

Crate of the week: async-std

This week's crate is async-std, a library with async variants of the standard library's IO etc.

This week in Rust #301 — 27 aug 2019

https://this-week-in-rust.org/blog/2019/08/27/this-week-in-rust-301/

Updates from core

Stabilize async_await in Rust 1.39.0
rust-lang/rust/pull/63209

When declaring a declarative macro in an item it's only accessible inside it
rust-lang/rust/pull/63624

Improve diagnostics: break/continue in wrong context
rust-lang/rust/pull/63780

Audit uses of apply_mark in built-in macros + Remove default macro transparencies
rust-lang/rust/pull/63823

Ensure miri can do bit ops on pointer values
rust-lang/rust/pull/63839

Use more optimal Ord implementation for integers
rust-lang/rust/pull/63767

Fix bug in iter::Chain::size_hint
rust-lang/rust/pull/63691

Implement nth_back for ChunksExactMut
rust-lang/rust/pull/63265

Avoid unnecessary reservations in std::io::Take::read_to_end
rust-lang/rust/pull/63216

cargo: Fix error:/warning: coloring inconsistency with rustc
rust-lang/cargo/pull/7294

rustdoc: Support impl Trait in inlined documentation
rust-lang/rust/pull/61613

rustup: Replace mem::uninitialized with MaybeUninit
rust-lang/rustup.rs/pull/1963

News

Should small Rust structs be passed by-copy or by-borrow?
www.forrestthewoods.com

Thoughts on Rust bloat.
raphlinus.github.io

Rust GUI ecosystem overview.
gitlab.com

Introduction to C2Rust.
immunant.com

Async stack traces in Rust.
fitzgeraldnick.com

Polsim - a case study for small-scale scientific computing in Rust.
tinkering.xyz

Managing memory in Rust: Entity-component systems.
mmstick.keybase.pub

Actually using Crev, or, the problem of trusting software dependencies.
wiki.alopex.li

Review of “Everything in Rust” of COSCUP 2019.
medium.com/coding-neutrino-blog

Crate of the week: include_flate

This week's crate is include_flate, a variant of include_bytes!/include_str with compile-time DEFLATE compression and runtime lazy decompression.

This week in Rust #302 — 03 sep 2019

https://this-week-in-rust.org/blog/2019/09/03/this-week-in-rust-302/

Updates from core

rustc: Handle modules in "fat" LTO more robustly
rust-lang/rust/pull/63956

Add default serialization for Idents
rust-lang/rust/pull/63853

Correctly suggest adding bounds to impl Trait argument
rust-lang/rust/pull/63811

Strip code to the left and right in diagnostics for long lines
rust-lang/rust/pull/63402

Do not complain about unused code when used in impl Self type
rust-lang/rust/pull/63317

Simplify eager normalization of constants
rust-lang/rust/pull/63820

miri: Stacked Borrows: Don't read from memory during retagging
rust-lang/miri/pull/931

miri: detect too large dynamically sized objects
rust-lang/rust/pull/64014

Small improvement for Ord implementation of integers
rust-lang/rust/pull/63992

Improve Rustdoc's handling of procedural macros
rust-lang/rust/pull/62855

crates.io: Show right-hand column for yanked versions to crate owners
rust-lang/crates.io/pull/1759