Crate of the week: mtpng

This week's crate is mtpng, a parallelized PNG encoder. Thanks to Willi Kappler for the suggestion!

This week in Rust #253 — 25 sep 2018

https://this-week-in-rust.org/blog/2018/09/25/this-week-in-rust-253/

Updates from core

switch linker for aarch64-pc-windows-msvc from LLD to MSVC
https://github.com/rust-lang/rust/pull/54290

remove (more) CAS API from Atomic* types where not natively supported
https://github.com/rust-lang/rust/pull/54280

parser: tweak function parameter parsing to avoid rollback on succesfull path
https://github.com/rust-lang/rust/pull/54415

improve handling of type bounds in bit_set.rs
https://github.com/rust-lang/rust/pull/54370

use HybridBitSet in SparseBitMatrix
https://github.com/rust-lang/rust/pull/54318

merge bitvec.rs and indexed_set.rs
https://github.com/rust-lang/rust/pull/54286

split Liveness::users into three
https://github.com/rust-lang/rust/pull/54211

compress Liveness data some more
https://github.com/rust-lang/rust/pull/54420

NLL: deduplicate errors for incorrect move in loop
https://github.com/rust-lang/rust/pull/53995

NLL: rework checking for borrows conflicting with drops
https://github.com/rust-lang/rust/pull/54509

report when borrow could cause &mut aliasing during Drop
https://github.com/rust-lang/rust/pull/54310

move std::os::raw::c_void into libcore and re-export in libstd and
Re-export core::ffi::c_void if it exists (RFC #2521)
https://github.com/rust-lang/rust/pull/53910

make rustc::middle::region::Scope's fields public
https://github.com/rust-lang/rust/pull/54260

miri: correctly compute expected alignment for field
https://github.com/rust-lang/rust/pull/54298

extend MIR inlining to all operand variants
https://github.com/rust-lang/rust/pull/54416

std: check for overflow in str::repeat
https://github.com/rust-lang/rust/pull/54399

switch wasm math symbols to their original names
https://github.com/rust-lang/rust/pull/54257

update to a new pinning API
https://github.com/rust-lang/rust/pull/53877

implement [T]::copy_within
https://github.com/rust-lang/rust/pull/53652

implement MaybeUninit
https://github.com/rust-lang/rust/pull/53508

Duration div mul extras
https://github.com/rust-lang/rust/pull/52813

cargo: fix missing messages when --message-format=json is deeply nested
https://github.com/rust-lang/cargo/pull/6081

cargo: fix incomplete conflict set backjump
https://github.com/rust-lang/cargo/pull/5988

News

🎈🎉 Announcing Rust 1.29.1. 🎉🎈
https://blog.rust-lang.org/2018/09/25/Rust-1.29.1.html

Citybound: Introducing live builds.
http://aeplay.co/citybound-devblog/introducing-live-builds

The biggest wasm-pack release yet.
https://rustwasm.github.io/2018/09/24/the-biggest-wasm-pack-release-yet.html

Office hours with Niko Matsakis: Debugging with GDB.
http://smallcultfollowing.com/babysteps/blog/2018/09/21/office-hours-0-debugging-with-gdb/

Office hours with Niko Matsakis: Cyclic services.
http://smallcultfollowing.com/babysteps/blog/2018/09/24/office-hours-1-cyclic-services/

Rust on iOS: How to.
https://github.com/mtak-/rust-on-mobile/blob/master/examples/ios/example01.md

A Rust FFI adventure in unsafety.
https://travisf.net/capstone-rs-unsafety-adventure

How to integrate Rust with C#.
https://blog.getseq.net/rust-at-datalust-how-we-integrate-rust-with-csharp/

Rewriting a bash noscript in Rust.
https://wiredforge.com/blog/misc/getpid/index.html

Creating a robot for Eurobot in Rust: The context.
https://blog.florencepaul.com/creating-a-robot-for-eurobot-part-1-context

Incinerator: The ABA problem and concurrent reclamation.
https://bzim.gitlab.io/blog/posts/incinerator-the-aba-problem-and-concurrent-reclamation.html

Crate of the week: packed_simd

This week's crate is packed_simd, a crate with portable SIMD vector types. Thanks to Gabriel Majeri for the suggestion!

This week in Rust #254 — 02 oct 2018

https://this-week-in-rust.org/blog/2018/10/02/this-week-in-rust-254/

Updates from core

Stabilize pattern_parentheses feature.
https://github.com/rust-lang/rust/pull/54497

Support an explicit annotation for marker traits.
https://github.com/rust-lang/rust/pull/53693

Better user experience when attempting to call associated functions with dot notation.
https://github.com/rust-lang/rust/pull/54308

Add "temporary value borrowed for too long" error.
https://github.com/rust-lang/rust/pull/54164

Remove -Z disable_ast_check_for_mutation_in_guard.
https://github.com/rust-lang/rust/pull/54676

Add a -C default-linker-libraries option.
https://github.com/rust-lang/rust/pull/54675

Implement the dbg!(..) macro.
https://github.com/rust-lang/rust/pull/54317

Add -Z emit-stack-sizes.
https://github.com/rust-lang/rust/pull/51946

impl trait in bindings (feature: impl-trait-existential-types.
https://github.com/rust-lang/rust/pull/53542

Make "await" a pseudo-edition keyword.
https://github.com/rust-lang/rust/pull/54411

Use full name to identify a macro in a FileName.
https://github.com/rust-lang/rust/pull/54338

Introduce the partition_dedup/by/by_key methods for slices.
https://github.com/rust-lang/rust/pull/54058

Rework how we handle outlives relationships.
https://github.com/rust-lang/rust/pull/54453

NLL: Get Polonius borrow check to work in simple cases.
https://github.com/rust-lang/rust/pull/54468

NLL: Be more permissive when checking access due to Match.
https://github.com/rust-lang/rust/pull/53438

NLL: Rework checking for borrows conflicting with drops.
https://github.com/rust-lang/rust/pull/54509

Don't lint non-extern-prelude extern crate's in Rust 2018.
https://github.com/rust-lang/rust/pull/54650

Deny the overflowing_literals lint for the 2018 edition.
https://github.com/rust-lang/rust/pull/54507

Rename slice::exact_chunks() to slice::chunks_exact().
https://github.com/rust-lang/rust/pull/54537

Avoid loading constructor attributes in AdtDef decoding.
https://github.com/rust-lang/rust/pull/54485

Panic when using mem::uninitialized or mem::zeroed on an uninhabited type.
https://github.com/rust-lang/rust/pull/54667

Improvements to finding LLVM's FileCheck.
https://github.com/rust-lang/rust/pull/54558

In which we include attributes in unused extern crate suggestion spans.
https://github.com/rust-lang/rust/pull/54488

In which inferable outlives-requirements are linted.
https://github.com/rust-lang/rust/pull/53013

Add a per-tree error cache to the obligation forest.
https://github.com/rust-lang/rust/pull/53255

News

Announcing the web-sys crate!
https://rustwasm.github.io/2018/09/26/announcing-web-sys.html

The relative performance of C and Rust.
http://dtrace.org/blogs/bmc/2018/09/28/the-relative-performance-of-c-and-rust/

Understanding compilers — for humans (version 2).
https://towardsdatascience.com/understanding-compilers-for-humans-version-2-157f0edb02dd

How I’ve found vulnerability in a popular Rust crate (and you can too).
https://medium.com/@shnatsel/how-ive-found-vulnerability-in-a-popular-rust-crate-and-you-can-too-3db081a67fb

lolbench: automagically and empirically discovering Rust performance regressions.
https://blog.anp.lol/rust/2018/09/29/lolbench/

This week in Rust and WebAssembly 8.
https://rustwasm.github.io/2018/10/01/this-week-in-rust-wasm-008.html

The embedded WG newsletter 12.
https://rust-embedded.github.io/blog/2018-09-25-newsletter-12/

Crate of the week: Evcxr

This week's crate is Evcxr, a Rust REPL and Rust Jupyter Kernel. Thanks to Willi Kappler for the suggestion!

This week in Rust #255 — 09 oct 2018

https://this-week-in-rust.org/blog/2018/10/09/this-week-in-rust-255/

Updates from core

merge proc_macro_ expansion feature gates as proc_macro_hygiene
https://github.com/rust-lang/rust/pull/52121

proptest basic validation
https://github.com/rust-lang/cargo/pull/6149

allow both explicit and elided lifetimes in the same impl header
https://github.com/rust-lang/rust/pull/54458

do not promote comparing function pointers
https://github.com/rust-lang/rust/pull/54702

nest the impl Trait existential item inside the return type
https://github.com/rust-lang/rust/pull/54741

do not normalize all non-scalar constants to a ConstValue::ScalarPair
https://github.com/rust-lang/rust/pull/54693

fix dead code lint for functions using impl Trait
https://github.com/rust-lang/rust/pull/54810

add suggestion for inverted function parameters
https://github.com/rust-lang/rust/pull/54804

suggest to use self for fake-self from other languages
https://github.com/rust-lang/rust/pull/54694

NLL: improve move error loop detection
https://github.com/rust-lang/rust/pull/54343

make NLL suggest "try removing &mut here"
https://github.com/rust-lang/rust/pull/54720

introduce TyKind::UnnormalizedProjection
https://github.com/rust-lang/rust/pull/54789

stabilize min_const_fn
https://github.com/rust-lang/rust/pull/54835

improve error message when trying to move from an Rc or Arc
https://github.com/rust-lang/rust/pull/54703

revisit work on cvoid
https://github.com/rust-lang/libc/pull/1086

fix Once perf regression
https://github.com/rust-lang/rust/pull/54662

make CStr::from_bytes_with_nul_unchecked() a const fn
https://github.com/rust-lang/rust/pull/54745

std: start implementing wasm32 atomics
https://github.com/rust-lang/rust/pull/54017

make spec_extend use for_each()
https://github.com/rust-lang/rust/pull/54761

News

Porting C to Rust, a case study: minimp3.
https://wiki.alopex.li/PortingCToRust

Lessons learned on writing web applications completely in Rust.
https://medium.com/@saschagrunert/lessons-learned-on-writing-web-applications-completely-in-rust-2080d0990287

comacro: a declarative building block for static analysis.
http://blog.lambdaverse.org/comacro

Oxidizing Python: Speeding up URL quoting by 10x using Rust.
https://tech.blue-yonder.com/oxidizing-python-speeding-up-urlquoting-by-using-rust/

GLSL quasiquoting in Rust.
https://phaazon.net/blog/glsl-quasiquoting

Going four times faster using multi-threading.
http://worthe-it.co.za/programming/2018/10/03/going-four-times-faster-with-multithreading.html

Bluetooth Low Energy with Rust.
https://219design.com/bluetooth-low-energy-with-rust/

Hunting for bugs in Rust.
https://blog.troutwine.us/2018/10/08/hunting-for-bugs-in-rust/

Who authors the most popular crates on crates.io?
https://words.steveklabnik.com/who-authors-the-most-popular-crates-on-crates-io

Rust's story for default arguments.
https://medium.com/@softprops/default-values-copy-that-ae43831781f3

Remacs continues to improve.
http://db48x.net/rust-remacs-2018/

Future directions for cbindgen (rust-ffi).
http://dreamingofbits.com/post/future-directions-for-cbindgen-rust-ffi/

The Embedded WG newsletter 13.
https://rust-embedded.github.io/blog/2018-10-09-newsletter-13/

Crate of the week: pest

This week's crate is pest, a Parsing Expression Grammar-based parser library. Thanks to CAD97 for the suggestion!

This week in Rust #256 — 16 oct 2018

https://this-week-in-rust.org/blog/2018/10/16/this-week-in-rust-256/

Updates from core

rustc: allow targets to specify SIMD args are by-val
https://github.com/rust-lang/rust/pull/55024

stabilize tool lints
https://github.com/rust-lang/rust/pull/54870

user annotations in patterns
https://github.com/rust-lang/rust/pull/54757

impl Eq+Hash for TyLayout
https://github.com/rust-lang/rust/pull/54936

prepare miri engine for enforcing validity invariant during execution
https://github.com/rust-lang/rust/pull/54762

miri engine: fix run-time validation
https://github.com/rust-lang/rust/pull/54955

fix handling of #[must_use] on unit and uninhabited types
https://github.com/rust-lang/rust/pull/54920

#[must_use] for associated functions is supposed to actually work
https://github.com/rust-lang/rust/pull/55003

the #[panic_handler] attribute can be applied to non-functions
https://github.com/rust-lang/rust/pull/54997

NLL is missing struct field suggestion
https://github.com/rust-lang/rust/pull/54831

add chalk rules related to associated type defs
https://github.com/rust-lang/rust/pull/54909

better Diagnostic for Trait Object Capture
https://github.com/rust-lang/rust/pull/54848

structured suggestions for unused-lifetimes lint
https://github.com/rust-lang/rust/pull/54686

mir-inlining: don't inline virtual calls
https://github.com/rust-lang/rust/pull/55046

use MaybeUninit in liballoc
https://github.com/rust-lang/rust/pull/54924

stabilize the Option::replace method
https://github.com/rust-lang/rust/pull/54904

std: implement Thread-local storage for wasm32-unknown-unknown
https://github.com/rust-lang/rust/pull/54951

std: synchronize global allocator on wasm32
https://github.com/rust-lang/rust/pull/54950

rustdoc: fix mobile docs
https://github.com/rust-lang/rust/pull/54869

News

🎈🎉 Announcing Rust 1.29.2. 🎉🎈
https://blog.rust-lang.org/2018/10/12/Rust-1.29.2.html

Rust has a static garbage collector.
https://words.steveklabnik.com/borrow-checking-escape-analysis-and-the-generational-hypothesis

Serverless Rust with Cloudflare Workers.
https://blog.cloudflare.com/cloudflare-workers-as-a-serverless-rust-platform/

Notes on type layouts and ABIs in Rust.
https://gankro.github.io/blah/rust-layouts-and-abis/

Game dev from zero - part 1: Hello, Rust lang.
https://hashnode.com/post/game-dev-from-zero-part-1-hello-rust-lang-cjn3brwto001jv7s2e533bdfc

Fixing a Clippy crash.
https://phansch.net/2018/10/10/fixing-a-clippy-crash/

Handling configurations in a Rust app with envy.
https://medium.com/@softprops/configuration-envy-a09584386705

Routing and extraction in Tide: a first sketch.
https://rust-lang-nursery.github.io/wg-net/2018/10/16/tide-routing.html

Amethyst is growing; news on ongoing projects.
https://www.amethyst.rs/blog/dev-news-10-2018/

Crate of the week: Noria

This week's crate is Noria, a new streaming data-flow system designed to act as a fast storage backend for read-heavy web applications. Thanks to Stevensonmt for the suggestion!

This week in Rust #257 — 23 oct 2018

https://this-week-in-rust.org/blog/2018/10/23/this-week-in-rust-257/

Updates from core

mir-inlining: don't inline virtual calls
https://github.com/rust-lang/rust/pull/55046

reject partial init and reinit of uninitialized data
https://github.com/rust-lang/rust/pull/54941

improve verify_llvm_ir config option
https://github.com/rust-lang/rust/pull/55031

add missing lifetime fragment specifier to error message
https://github.com/rust-lang/rust/pull/55025

rustc: fix (again) simd vectors by-val in ABI
https://github.com/rust-lang/rust/pull/55073

resolve: scale back hard-coded extern prelude additions on 2015 edition
https://github.com/rust-lang/rust/pull/54671

resolve: do not skip extern prelude during speculative resolution
https://github.com/rust-lang/rust/pull/55102

allow explicit matches on ! without warning
https://github.com/rust-lang/rust/pull/55119

deduplicate some code and compile-time values around vtables
https://github.com/rust-lang/rust/pull/55016

NLL: propagate bounds from generators
https://github.com/rust-lang/rust/pull/55013

NLL lacks various special case handling of closures
https://github.com/rust-lang/rust/pull/54976

NLL: fix migrate mode issue by not buffering lints
https://github.com/rust-lang/rust/pull/55135

NLL: change compare-mode=nll to use borrowck=migrate
https://github.com/rust-lang/rust/pull/55134

NLL: use new region infer errors when explaining borrows
https://github.com/rust-lang/rust/pull/55069

NLL type annotations in multisegment path
https://github.com/rust-lang/rust/pull/55093

add filtering option to rustc_on_unimplemented and reword Iterator E0277 errors
https://github.com/rust-lang/rust/pull/54946

custom E0277 diagnostic for Path
https://github.com/rust-lang/rust/pull/54979

unused_patterns lint
https://github.com/rust-lang/rust/pull/54820

check the type of statics and constants for Sizedness
https://github.com/rust-lang/rust/pull/55004

miri: layout should not affect CTFE checks
https://github.com/rust-lang/rust/pull/55142

added graphviz visualization for obligation forests
https://github.com/rust-lang/rust/pull/54486

replace CanonicalVar with DebruijnIndex
https://github.com/rust-lang/rust/pull/52984

stabilize slice::chunks_exact(), chunks_exact_mut(), rchunks(), rchunks_mut(), rchunks_exact(), rchunks_exact_mut()
https://github.com/rust-lang/rust/pull/55178

add a copysign function to f32 and f64
https://github.com/rust-lang/rust/pull/55169

don't warn about parentheses on match (return)
https://github.com/rust-lang/rust/pull/55166

handle underscore bounds in unexpected places
https://github.com/rust-lang/rust/pull/55162

fix ICE and report a human readable error
https://github.com/rust-lang/rust/pull/55071

add slice::rchunks(), rchunks_mut(), rchunks_exact() and rchunks_exact_mut()
https://github.com/rust-lang/rust/pull/54580

unify multiple errors on single typo in match pattern
https://github.com/rust-lang/rust/pull/55156

fix LLVMRustInlineAsmVerify return type mismatch
https://github.com/rust-lang/rust/pull/55128

miri engine: hooks for basic stacked borrows
https://github.com/rust-lang/rust/pull/55125

add support for 'cargo check --all-features'
https://github.com/rust-lang/rust.vim/pull/265

cargo: add PackageError wrappers for activation errors
https://github.com/rust-lang/cargo/pull/6175

rustdoc: use dyn keyword when rendering dynamic traits
https://github.com/rust-lang/rust/pull/55077

rustdoc: don't prefer dynamic linking in doc tests
https://github.com/rust-lang/rust/pull/54939

rustdoc: add lint for doc without codeblocks
https://github.com/rust-lang/rust/pull/54349

detect if access to localStorage is forbidden by the user's browser
https://github.com/rust-lang/rust/pull/55080

librustdoc: disable spellcheck for search field
https://github.com/rust-lang/rust/pull/55161

crates.io: add a missing index on crates
https://github.com/rust-lang/crates.io/pull/1527

News

Writing an OS in Rust: Hardware interrupts.
https://os.phil-opp.com/hardware-interrupts/

Towards fearless SIMD.
https://raphlinus.github.io/rust/simd/2018/10/19/fearless-simd.html

Shifgrethor I: Garbage collection as a Rust library.
https://boats.gitlab.io/blog/post/shifgrethor-i/

Update on the October 15, 2018 incident on crates.io.
https://blog.rust-lang.org/2018/10/19/Update-on-crates.io-incident.html

docs.rs is now part of the rust-lang-nursery organization.
https://github.com/rust-lang-nursery/docs.rs

Is Rust functional?
https://www.fpcomplete.com/blog/2018/10/is-rust-functional

Multithreading Rust and WebAssembly.
https://rustwasm.github.io/2018/10/24/multithreading-rust-and-wasm.html

Rust has higher kinded types already... sort of.
https://joshlf.com/post/2018/10/18/rust-higher-kinded-types-already/

Auth web microservice with Rust using actix-web.
https://hgill.io/posts/auth-microservice-rust-actix-web-diesel-complete-tutorial-part-1/