Updates from core

Support both static and dynamic linking mode in testing for vxWorks
rust-lang/rust/pull/63789

Point at variant on pattern field count mismatch
rust-lang/rust/pull/64161

Use hygiene for AST passes
rust-lang/rust/pull/63919

Account for doc comments coming from proc macros without spans
rust-lang/rust/pull/63930

Reduce span to function name in unreachable calls
rust-lang/rust/pull/64229

Move path parsing earlier
rust-lang/rust/pull/64120

or-patterns: Uniformly use PatKind::Or in AST & Fix/Cleanup resolve
rust-lang/rust/pull/64111

Allow checking of run-pass execution output in compiletest
rust-lang/rust/pull/63825

Rust 2018: NLL migrate mode => hard error
rust-lang/rust/pull/63565

Extend Polonius fact generation for (some) move tracking
rust-lang/rust/pull/62800

polonius: Finalise initialisation calculations
rust-lang/polonius/pull/110

libc: Remove WASI Core API
rust-lang/libc/pull/1461

Use wasi crate for Core API
rust-lang/rust/pull/63676

Use unicode-xid crate instead of libcore
rust-lang/rust/pull/62848

Add Result::cloned{,_err} and Result::copied{,_err}
rust-lang/rust/pull/63166

Stabilize bind_by_move_pattern_guards in Rust 1.39.0
rust-lang/rust/pull/63118

Stabilize checked_duration_since for 1.38.0
rust-lang/rust/pull/62860

Stabilize pin_into_inner in 1.39.0
rust-lang/rust/pull/63985

Rev::rposition counts from the wrong end
rust-lang/rust/pull/63549

Override StepBy::{try_fold, try_rfold}
rust-lang/rust/pull/64121

Add Iterator comparison methods that take a comparison function
rust-lang/rust/pull/62205

Add methods for converting bool to Option<T>
rust-lang/rust/pull/64255

cargo: Rename --all to --workspace
rust-lang/cargo/pull/7241

News

How Rust optimizes async/await II: program analysis.
tmandry.gitlab.io

Rust on the ESP32.
mabez.dev

Linux.Fe2O3: a Rust virus.
www.guitmz.com

Improvement to the compile time of a crate.
antoyo.ml

hyper 0.13 alpha supports async/await.
seanmonstar.com

Writing an OS in Rust: updates in August 2019.
os.phil-opp.com

Rust in large organizations - meeting notes.
users.rust-lang.org

Futures concurrency.
blog.yoshuawuyts.com

Crate of the week: viu

This week's crate is viu, a terminal image viewer.

This week in Rust #304 — 17 sep 2019

https://this-week-in-rust.org/blog/2019/09/17/this-week-in-rust-304/

Updates from core

rustc: Allow the cdylib crate type with wasm32-wasi
rust-lang/rust/pull/64188

Hide diagnostics emitted during --cfg parsing
rust-lang/rust/pull/64467

Improve hygiene of alloc::format!
rust-lang/rust/pull/64060

Cleanup handling of hygiene for built-in macros
rust-lang/rust/pull/64469

resolve: Tweak some "cannot find" wording for macros
rust-lang/rust/pull/64483

Provide a span if main function is not present in crate
rust-lang/rust/pull/64290

def_collector: Do not ICE on attributes on unnamed fields
rust-lang/rust/pull/64457

Permit impls referencing errors to overlap
rust-lang/rust/pull/64474

lowering: Extend temporary lifetimes around await
rust-lang/rust/pull/64292

Shrink ObligationCauseCode
rust-lang/rust/pull/64302

check_match: Refactor + improve non-exhaustive diagnostics for default binding modes
rust-lang/rust/pull/64271

fn ptr is structural match
rust-lang/rust/pull/64431

rustc_mir: Buffer -Zdump-mir output instead of pestering the kernel constantly
rust-lang/rust/pull/64344

std: Add a backtrace module
rust-lang/rust/pull/64154

Stabilize Vec::new and String::new as const fns
rust-lang/rust/pull/64028

Stabilise weak_ptr_eq
rust-lang/rust/pull/61797

Make abs, wrapping_abs, overflowing_abs const functions
rust-lang/rust/pull/63786

Use try_fold instead of manually carrying an accumulator
rust-lang/rust/pull/64473

Improve BTreeSet::Intersection::size_hint
rust-lang/rust/pull/64383

cargo: Don't build libstd as a dylib
rust-lang/cargo/pull/7353

rustup: Update to most recent viable nightly
rust-lang/rustup.rs/pull/1997

News

Upcoming docs.rs changes.
blog.rust-lang.org

GitHub Actions for Rust.
svartalf.info

Rustconf 2019 videos.
www.youtube.com

Improved C variadics in Rust and C2Rust.
immunant.com

Oreboot: Coreboot minus C, a talk by Google.
osfc.io

Announcing awesome-rust-mentors.
rustbeginners.github.io

Adventures in motion control.
adventures.michaelfbryan.com

Crate of the week: texture-synthesis

This week's crate is texture-synthesis, a program to generate textures by choosing examples.

This week in Rust #305 — 24 sep 2019

https://this-week-in-rust.org/blog/2019/09/24/this-week-in-rust-305/

Updates from core

Infer consts more consistently
rust-lang/rust/pull/64679

Parse assoc type bounds in generic params and provide custom diagnostic
rust-lang/rust/pull/64676

Update to LLVM 9.0.0
rust-lang/rust/pull/64634

rustbuild: Copy crate doc files fewer times
rust-lang/rust/pull/64613

Point at original span when emitting unreachable lint
rust-lang/rust/pull/64592

record fewer adjustment types in generator witnesses, avoid spurious drops in MIR construction
rust-lang/rust/pull/64584

More ObligationForest improvements
rust-lang/rust/pull/64545

Replace state_for_location with DataflowResultsCursor
rust-lang/rust/pull/64532

Load proc macro metadata in the correct order
rust-lang/rust/pull/64528

Various ObligationForest improvements
rust-lang/rust/pull/64500

Shrink SubregionOrigin
rust-lang/rust/pull/64394

save-analysis: Nest typeck tables when processing functions/methods
rust-lang/rust/pull/64250

Add cmp::{min_by, min_by_key, max_by, max_by_key}
rust-lang/rust/pull/64047

Stabilize param_attrs in Rust 1.39.0
rust-lang/rust/pull/64010

Make sure interned constants are immutable
rust-lang/rust/pull/63955

Added ability to crosscompile doctests
rust-lang/cargo/pull/6892

Add std_detect::detect::features() API that returns iterator of target-features and reject unstable features in feature-detection macros
rust-lang/stdarch/pull/739

News

LLVM: closing the gap - cross-language LTO between Rust and C/C++.
blog.llvm.org

Weld: accelerating numpy, scikit and pandas as much as 100x with Rust and LLVM.
notamonadtutorial.com

Declarative memory management.
amos.me

Generic newtypes: A way to work around the orphan rule.
blog.eizinger.io

Async builders.
blog.yoshuawuyts.com

Adventures in motion control: top-level infrastructure.
adventures.michaelfbryan.com

Build an NB-IoT GPS Tracker on STM32 L476 with Apache Mynewt and Embedded Rust.
medium.com/@ly.lee

Navigating the Rust OSS community.
yaah.dev

Crate of the week: runtime

This week's crate is runtime, an experimental hot-reloading oriented runtime in Rust.

This week in Rust #306 — 01 oct 2019

https://this-week-in-rust.org/blog/2019/10/01/this-week-in-rust-306/

Updates from core

Rest In Peace, AST borrowck (2012-2019)
rust-lang/rust/pull/64790

Fix double panic when printing query stack during an ICE
rust-lang/rust/pull/64799

or-patterns: Push PatKind/PatternKind::Or at top level to HIR & HAIR
rust-lang/rust/pull/64508

Fix format macro expansions spans to be macro-generated
rust-lang/rust/pull/64793

Remove blanket silencing of "type annotation needed" errors
rust-lang/rust/pull/64746

Include message on tests that should panic but do not
rust-lang/rust/pull/64745

Point at definition when misusing ADT
rust-lang/rust/pull/64691

Account for tail expressions when pointing at return type
rust-lang/rust/pull/64802

On obligation errors point at the unfulfilled binding when possible
rust-lang/rust/pull/64151

Fix coherence checking for impl trait in type aliases
rust-lang/rust/pull/63934

Propagate types.err in locals further to avoid spurious knock-down errors
rust-lang/rust/pull/64674

check_match: Improve diagnostics for let A = 2; with const A: i32 = 3
rust-lang/rust/pull/64859

Point at enclosing match when expecting () in arm
rust-lang/rust/pull/64825

Add a cycle detector for generic Graphs and mir::Bodys
rust-lang/rust/pull/64622

Add const-eval support for SIMD types, insert, and extract
rust-lang/rust/pull/64738

Implement dataflow-based const validation
rust-lang/rust/pull/64470

Optimize try_eval_bits to avoid layout queries
rust-lang/rust/pull/64673

Even more ObligationForest improvements
rust-lang/rust/pull/64627

A more explanatory thread local storage panic message
rust-lang/rust/pull/64481

Stabilize str::len, [T]::len and str::as_bytes as const fn
rust-lang/rust/pull/63770

Reserve impl<T> From<!> for T
rust-lang/rust/pull/62661

Remove manual unrolling from slice::Iter(Mut)::try_fold
rust-lang/rust/pull/64600

compiler-builtins: Implement bcmp
rust-lang/compiler-builtins/pull/315

cargo: Improve test output with --quiet
rust-lang/cargo/pull/7446

News

🎈🎉 Announcing Rust 1.38.0. 🎉🎈
blog.rust-lang.org

Security advisory for Cargo.
blog.rust-lang.org

Async-await hits beta.
blog.rust-lang.org

Accurate mental model for Rust's reference types.
docs.rs

Fighting the Async fragmentation.
vorner.github.io

Making a RISC-V Operating System using Rust.
web.eecs.utk.edu

Plugins in Rust.
adventures.michaelfbryan.com

Building the Azure IoT Edge Security Daemon in Rust.
msrc-blog.microsoft.com

Adventures in motion control: FPS counter.
adventures.michaelfbryan.com

Causal profiling Rust code.
llogiq.github.io

gfx-rs 2019 update.
gfx-rs.github.io

Announcing Drone OS - an embedded operating system for writing real-time applications in Rust.
www.reddit.com

Crate of the week: pin-project

This week's crate is pin-project, a proc-macro-derive for ergonomic and safe Pin projections.

This week in Rust #307 — 08 oct 2019

https://this-week-in-rust.org/blog/2019/10/08/this-week-in-rust-307/

Updates from core

Only add sanitizer runtimes when linking an executable
rust-lang/rust/pull/64780

LLVM/wasm: Fix conflict between ret legalization and sjlj
rust-lang/llvm-project/pull/25

LLVM/wasm: Restore defaults for stores per memop
rust-lang/llvm-project/pull/24

When encountering chained operators use heuristics to recover from bad turbofish
rust-lang/rust/pull/64909

Make visit projection iterative
rust-lang/rust/pull/65056

Make re-export collection deterministic
rust-lang/rust/pull/65043

Deduplicate closure type errors
rust-lang/rust/pull/64937

Suggest fix for type mismatch based on operator precendence
rust-lang/rust/pull/64933

syntax: improve parameter without type suggestions
rust-lang/rust/pull/64959

Polonius: use the fx hasher when interning
rust-lang/polonius/pull/131

extract expected return type for async fn generators
rust-lang/rust/pull/64999

async/await: improve not-send errors
rust-lang/rust/pull/64895

const-prop: Fix ICE when trying to eval polymorphic promoted MIR
rust-lang/rust/pull/65066

const-prop: Correctly handle locals that can't be propagated
rust-lang/rust/pull/64991

Still more ObligationForest improvements
rust-lang/rust/pull/64805

Avoid chain() in find_constraint_paths_between_regions()
rust-lang/rust/pull/64801

Optimize integral pattern matching
rust-lang/rust/pull/65089

proc_macro API: Expose macro_rules hygiene
rust-lang/rust/pull/64690

Deprecate #![plugin] & #[plugin_registrar]
rust-lang/rust/pull/64675

metadata: Some crate loading cleanup
rust-lang/rust/pull/65026

Do not ICE when dereferencing non-Copy raw pointer
rust-lang/rust/pull/65011

Fix zebra-striping in generic dataflow visualization
rust-lang/rust/pull/64974

Don't mark borrows of zero-sized arrays as indirectly mutable
rust-lang/rust/pull/64967

Deny specializing items not in the parent impl
rust-lang/rust/pull/64564

Add feature gate for raw_dylib
rust-lang/rust/pull/63948

Stabilize macros in some more positions
rust-lang/rust/pull/63931

syntax: Support modern attribute syntax in the meta matcher
rust-lang/rust/pull/63674

Use PlaceBuilder to avoid a lot of slice → vec → slice convertions
rust-lang/rust/pull/64922

use try_fold instead of try_for_each to reduce compile time
rust-lang/rust/pull/64885

Stabilize UdpSocket::peer_addr
rust-lang/rust/pull/64728

Stabilize Option::as_deref and Option::as_deref_mut
rust-lang/rust/pull/64708

Stabilize todo!(..) macro
rust-lang/rust/pull/61879

hashbrown: Add RustcVacantEntry::insert_entry
rust-lang/hashbrown/pull/118

BTreeSet intersection, is_subset & difference optimizations
rust-lang/rust/pull/64820

Implement Clone::clone_from for LinkedList
rust-lang/rust/pull/64975

Inline {min,max}_value even in debug builds
rust-lang/rust/pull/64941

cargo: Support for named profiles (RFC 2678)
rust-lang/cargo/pull/6989

cargo: Disable preserving mtimes on archives
rust-lang/cargo/pull/7465

rustup: Cleaned up error messages
rust-lang/rustup.rs/pull/2035

rustbuild: Make all alt builders produce parallel-enabled compilers
rust-lang/rust/pull/64722

News

Announcing the Inside Rust blog.
blog.rust-lang.org

Async Foundations update: Time for polish.
blog.rust-lang.org

Keeping Rust projects secure with cargo-audit 0.9: dependency trees, core advisories, unmaintained crates.
blog.rust-lang.org

Designing a COM library for Rust.
msrc-blog.microsoft.com

Tonic: gRPC has come to async/await.
luciofran.co

reqwest alpha with async/await released.
seanmonstar.com

Writing an OS in Rust - updates in September 2019.
os.phil-opp.com

Static Assertions 1.0 is released.
nikolaivazquez.com

Ownership and impl Trait.
tech.fpcomplete.com

Writing an HTTP server in Rust (part 1).
curiosityoverflow.xyz

Adventures in motion control: The communications system part 1.
adventures.michaelfbryan.com

Coding nRF52 with Rust and Apache Mynewt on Visual Studio Code.
medium.com/@ly.lee

This month in Rust GameDev 2 - September 2019.
rust-gamedev.github.io

The Embedded Working Group newsletter 19.
rust-embedded.github.io

Rust now has more than 100000 commits.
rust-lang/rust

[pdf] Leveraging Rust types for modular specification and verification.
pm.inf.ethz.ch

Crate of the week: algebraics

This week's crate is algebraics, a pure-Rust algebraic numbers library for infinite-precision computation.

This week in Rust #308 — 15 oct 2019

https://this-week-in-rust.org/blog/2019/10/15/this-week-in-rust-308/

Updates from core

Add support for const unsafe? extern fn
rust-lang/rust/pull/64906

Split non-CAS atomic support off into target_has_atomic_load_store
rust-lang/rust/pull/65214

deriving: Avoid dummy Span on an artificial type_ident path
rust-lang/rust/pull/65310

Print lifetimes with backticks
rust-lang/rust/pull/65292

Fix suggested bound addition diagnostic
rust-lang/rust/pull/65289

Note when a mutable trait object is needed
rust-lang/rust/pull/65077

Use structured suggestion for removal of as_str() call
rust-lang/rust/pull/65194

Fix const generic arguments not displaying in types mismatch diagnostic
rust-lang/rust/pull/65154

Improve message when attempting to instantiate tuple structs with private fields
rust-lang/rust/pull/65153

Suggest dereferencing boolean reference when used in if or while
rust-lang/rust/pull/65150

When suggesting assoc function with type params, include turbofish
rust-lang/rust/pull/65145

self-profiling: Add events for everything except trait selection
rust-lang/rust/pull/65208

Avoid SmallVec::collect
rust-lang/rust/pull/64949

Speed up TokenStream concatenation
rust-lang/rust/pull/65198

Implement Clone::clone_from for VecDeque
rust-lang/rust/pull/65069

Stabilize slice::repeat
rust-lang/rust/pull/64877

Stabilize mem::take
rust-lang/rust/pull/64716

Implement (HashMap) Entry::insert
rust-lang/rust/pull/64656

improve performance of signed saturating_mul
rust-lang/rust/pull/65312

dist: minimize the rust-std component
rust-lang/rust/pull/64823