Crate of the week: log-derive

This week's crate is log-derive, a procedural macro to log function outputs. Thanks to elichai2 for the suggestion!

This week in Rust #273 — 12 feb 2019

https://this-week-in-rust.org/blog/2019/02/12/this-week-in-rust-273/

Updates from core

Initial addition of the Embedded Rust Book.
https://github.com/rust-lang/rust/pull/56291

Add const generics to the AST.
https://github.com/rust-lang/rust/pull/58191

Error on duplicate matcher bindings.
https://github.com/rust-lang/rust/pull/57617

libc: RFC 2235 - Implement PartialEq,Eq,Hash,Debug for all types.
https://github.com/rust-lang/libc/pull/1217

Lower constant patterns with ascribed types.
https://github.com/rust-lang/rust/pull/58161

Make intern_lazy_const actually intern its argument.
https://github.com/rust-lang/rust/pull/58207

Avoid committing to autoderef in object method probing.
https://github.com/rust-lang/rust/pull/57885

Add #[must_use] to core::task::Poll.
https://github.com/rust-lang/rust/pull/58145

Add #[must_use] message to Fn* traits.
https://github.com/rust-lang/rust/pull/58262

Avoid some bounds checks in binary_heap::{PeekMut,Hole}.
https://github.com/rust-lang/rust/pull/58123

Make -Zdump-mir dump shims.
https://github.com/rust-lang/rust/pull/58103

Cargo: Bail when trying to run "test --doc --no-run".
https://github.com/rust-lang/cargo/pull/6628

Improve error message and docs for non-UTF-8 bytes in stdio on Windows.
https://github.com/rust-lang/rust/pull/58136

Move privacy checking later in the pipeline and make some passes run in parallel.
https://github.com/rust-lang/rust/pull/58010

Overhaul syntax::fold::Folder.
https://github.com/rust-lang/rust/pull/58061

Factor out error reporting from smart_resolve_path_fragment fn.
https://github.com/rust-lang/rust/pull/58065

Do not ICE in codegen when using a extern_type static.
https://github.com/rust-lang/rust/pull/58192

hir: add more HirId methods.
https://github.com/rust-lang/rust/pull/58139

Implement more detailed self profiling.
https://github.com/rust-lang/rust/pull/58085

Add a forever unstable opt-out of const qualification checks.
https://github.com/rust-lang/rust/pull/56123

Initial implementation of rustfixable unused_imports lint.
https://github.com/rust-lang/rust/pull/56645

Add a query type which is always marked as red if it runs.
https://github.com/rust-lang/rust/pull/57770

Don't try to clean predicates involving ReErased.
https://github.com/rust-lang/rust/pull/57851

Deduplicate mismatched delimiter errors.
https://github.com/rust-lang/rust/pull/57944

Add suggestion for duplicated import.
https://github.com/rust-lang/rust/pull/57973

Allow #[repr(align(x))] on enums.
https://github.com/rust-lang/rust/pull/57998

News

Learning Rust in 2019.
https://www.ragona.com/posts/learning_rust_2019

A quick look at trait objects in Rust.
https://tratt.net/laurie/blog/entries/a_quick_look_at_trait_objects_in_rust.html

Allocations in Rust: An introduction to the memory model.
https://speice.io/2019/02/understanding-allocations-in-rust.html

Custom exit status codes with ? in main.
https://www.joshmcguigan.com/blog/custom-exit-status-codes-rust/

Rust: a unique perspective.
https://limpet.net/mbrubeck/2019/02/07/rust-a-unique-perspective.html

Rust on STM32: Blinking an LED.
https://jonathanklimt.de/electrics/programming/rust-STM32F103-blink/

Generators I: Toward a minimum viable product.
https://boats.gitlab.io/blog/post/generators-i/

Aturon retires from the Core Team (but not from Rust).
https://internals.rust-lang.org/t/aturon-retires-from-the-core-team-but-not-from-rust/9392

Rewriting stackcollapse-xdebug in Rust.
https://daniellockyer.com/rewriting-stackcollapse-xdebug/

Are you still using 'println' in Rust for debugging?
https://blog.knoldus.com/are-you-still-using-println-in-rust-for-debugging/

UCG+Miri All-Hands 2019 Recap.
https://www.ralfj.de/blog/2019/02/12/all-hands-recap.html

Crate of the week: sysinfo

This week's crate is sysinfo, a system handler to get information and interact with processes. Thanks to GuillaumeGomez for the suggestion!

This week in Rust #274 — 19 feb 2019

https://this-week-in-rust.org/blog/2019/02/19/this-week-in-rust-274/

Updates from core

Implement incremental "fat" LTO
https://github.com/rust-lang/rust/pull/58378

Enable comparing fat pointers
https://github.com/rust-lang/rust/pull/58301

impl iter() for dyn Error
https://github.com/rust-lang/rust/pull/58289

Improve the error messages for missing stability attributes
https://github.com/rust-lang/rust/pull/58276

Cut down on number formating code size
https://github.com/rust-lang/rust/pull/58272

Reduce the size of hir::Expr
https://github.com/rust-lang/rust/pull/58258

Make saturating_add and saturating_sub const functions
https://github.com/rust-lang/rust/pull/58246

Stabilize slice_sort_by_cached_key
https://github.com/rust-lang/rust/pull/58074

Stabilize str::escape_* methods with new return types
https://github.com/rust-lang/rust/pull/58051

Stabilize the time_checked_add feature
https://github.com/rust-lang/rust/pull/58034

Update the future/task API
https://github.com/rust-lang/rust/pull/57992

Speed up the fast path for assert_eq! and assert_ne!
https://github.com/rust-lang/rust/pull/57815

cargo: Stabilize Alternative Registries
https://github.com/rust-lang/cargo/pull/6654

News

Moving from Ruby to Rust.
https://deliveroo.engineering/2019/02/14/moving-from-ruby-to-rust.html

Rust lifetime visualization ideas.
https://blog.adamant-lang.org/2019/rust-lifetime-visualization-ideas/

Generators II: The question mark problem.
https://boats.gitlab.io/blog/post/generators-ii/

A list of itch.io games written in Rust.
https://itch.io/c/449652/rustlang-games

Cross-compiling Rust code to Minix.
https://iandouglasscott.com/2019/02/18/cross-compiling-rust-code-to-minix/

One hundred Rust PRs later.
https://phansch.net/2019/02/18/onehundred-rust-prs/

This week in Rust and WebAssembly 10.
https://rustwasm.github.io/2019/02/13/this-week-in-rust-and-wasm-010.html

Crate of the week: num-format

This week's crate is num-format, a crate to format numbers to international standards. Thanks to Vikrant for the suggestion!

This week in Rust #275 — 26 feb 2019

https://this-week-in-rust.org/blog/2019/02/26/this-week-in-rust-275/

Updates from core

Add an unstable option to build proc macros for both the host and the target
https://github.com/rust-lang/cargo/pull/6547

Avoid ICE when region sneaks into impl trait
https://github.com/rust-lang/rust/pull/58649

Add const generics to the HIR
https://github.com/rust-lang/rust/pull/58503

Improve parsing diagnostic for negative supertrait bounds
https://github.com/rust-lang/rust/pull/57364

Optimise vec![false; N] to zero-alloc
https://github.com/rust-lang/rust/pull/58628

Add expected/provided byte alignments to validation error message
https://github.com/rust-lang/rust/pull/58658

Remove LazyTokenStream
https://github.com/rust-lang/rust/pull/58476

Add better error message for partial move
https://github.com/rust-lang/rust/pull/58199

Suggest removing parentheses surrounding lifetimes
https://github.com/rust-lang/rust/pull/58198

Use normal mutable borrows in matches
https://github.com/rust-lang/rust/pull/57609

Monomorphize less code in fs::{read, write}
https://github.com/rust-lang/rust/pull/58530

Make overflowing and wrapping negation const
https://github.com/rust-lang/rust/pull/58044

Fix overlapping references in BTree
https://github.com/rust-lang/rust/pull/58431

Relax some Ord bounds on BinaryHeap
https://github.com/rust-lang/rust/pull/58421

Relax some Hash bounds on HashMap and HashSet
https://github.com/rust-lang/rust/pull/58370

Turn duration consts into associated consts
https://github.com/rust-lang/rust/pull/58595

RangeInclusive internal iteration performance improvement
https://github.com/rust-lang/rust/pull/58122

Override VecDeque::try_rfold, also update iterator
https://github.com/rust-lang/rust/pull/58064

Stabilize TryFrom and TryInto with a convert::Infallible empty enum
https://github.com/rust-lang/rust/pull/58302

Stabilize iter::successors and iter::from_fn
https://github.com/rust-lang/rust/pull/58576

Destabilize fixed-width const defined atomic integers
https://github.com/rust-lang/rust/pull/58616

Deprecate the unstable Vec::resize_default
https://github.com/rust-lang/rust/pull/57656

Modify doctest's auto-fn main() to allow Results
https://github.com/rust-lang/rust/pull/56470

crates.io: Stop logging the referer header
https://github.com/rust-lang/crates.io/pull/1636

News

Rust case study: Community makes Rust an easy choice for npm.
https://www.rust-lang.org/static/pdfs/Rust-npm-Whitepaper.pdf

Combine results for improved Rust validation logic.
https://www.joshmcguigan.com/blog/multi-try-improved-validation-logic-rust/

Rust now runs on the new Cortex-M33 based Nordic nRF9160 LTE SiP.
https://twitter.com/42Technology/status/1099009843967471617

Scientific computing: a Rust adventure - part 0 - vectors.
https://www.lpalmieri.com/posts/2019-02-23-scientific-computing-a-rust-adventure-part-0-vectors/

HTML code coverage reports for Rust.
https://blog.knoldus.com/bid-adieu-to-tarpaulin-html-reports-are-here-for-rust/

Blockchain in Rust - a video series.
https://www.youtube.com/watch?v=vJdT05zl6jk&list=PLwnSaD6BDfXL0RiKT_5nOIdxTxZWpPtAv&index=2&t=0s

Changes in the core team.
https://blog.rust-lang.org/2019/02/22/Core-team-changes.html

Rust lang team working groups.
http://smallcultfollowing.com/babysteps/blog/2019/02/22/rust-lang-team-working-groups/

This week in Rust and WebAssembly 11.
https://rustwasm.github.io/2019/02/21/this-week-in-rust-and-wasm-011.html

The embedded WG newsletter 15.
https://rust-embedded.github.io/blog/newsletter-15/

Crate of the week: shellfn

This week's crate is shellfn, a proc macro to easily and safely use shell noscripts in Rust. Thanks to Willi Kappler for the suggestion!

This week in Rust #276 — 05 mar 2019

https://this-week-in-rust.org/blog/2019/03/05/this-week-in-rust-276/

Updates from core

Support defining C compatible variadic functions
https://github.com/rust-lang/rust/pull/57760

Fix C-variadic function printing
https://github.com/rust-lang/rust/pull/58865

Add support for using a jobserver with Rayon
https://github.com/rust-lang/rust/pull/56946

Stabilize unrestricted_attribute_tokens
https://github.com/rust-lang/rust/pull/57367

Include bounds from promoted constants in NLL
https://github.com/rust-lang/rust/pull/57202

NLL: Type check operations with pointer types
https://github.com/rust-lang/rust/pull/58673

NLL: Remove LiveVar
https://github.com/rust-lang/rust/pull/58505

Self-Profiler: Make the profiler faster/more efficient
https://github.com/rust-lang/rust/pull/58425

Normalize the type Self resolves to in an impl
https://github.com/rust-lang/rust/pull/58757

Use internal iteration in all methods of Filter and FilterMap
https://github.com/rust-lang/rust/pull/58730

News

🎈🎉 Announcing Rust 1.33.0. 🎉🎈
https://blog.rust-lang.org/2019/02/28/Rust-1.33.0.html

Building fast interpreters in Rust.
https://blog.cloudflare.com/building-fast-interpreters-in-rust/

Implications of rewriting a browser component in Rust.
https://hacks.mozilla.org/2019/02/rewriting-a-browser-component-in-rust/

24 hours of game development in Rust.
http://iolivia.me/posts/24-hours-of-rust-game-dev/

Proposal: New channels for Rust's standard library.
https://stjepang.github.io/2019/03/02/new-channels.html

Async-await status report.
http://smallcultfollowing.com/babysteps/blog/2019/03/01/async-await-status-report/

Up and Running with React + Rust + Wasm.
https://prestonrichey.com/blog/react-rust-wasm/

Exposing FFI from the Rust library.
https://svartalf.info/posts/2019-03-01-exposing-ffi-from-the-rust-library/

Compile time function evaluation using const fn in Rust.
https://blog.knoldus.com/no-more-run-time-enjoy-compile-time-function-evaluation-using-const-fn-in-rust/

This week in Rust and WebAssembly 12.
https://rustwasm.github.io/2019/02/28/this-week-in-rust-and-wasm-012.html

Crate of the week: multi_try

This week's crate is multi_try, a crate to simplify working with multiple results. Thanks to Azriel Hoh for the suggestion!

This week in Rust #277 — 12 mar 2019

https://this-week-in-rust.org/blog/2019/03/12/this-week-in-rust-277/

Updates from core

Make the rustc driver and interface demand driven
rust-lang/rust/pull/56732

Make the lifetime parameters of tcx consistent
rust-lang/rust/pull/58926

Don't promote function calls to nonpromotable things
rust-lang/rust/pull/58784

HirIdification: almost there
rust-lang/rust/pull/58915

Monomorphize generator field types for debuginfo
rust-lang/rust/pull/58906

Always emit unclosed delimiter diagnostics
rust-lang/rust/pull/58903

Mention unwind(aborts) in diagnostics for #[unwind]
rust-lang/rust/pull/58762

Add const generics to ty (and transitive dependencies)
rust-lang/rust/pull/58583

Make the Entry API of HashMap Sync and Send
rust-lang/rust/pull/58369

On return type impl Trait for block with no expr point at last semi
rust-lang/rust/pull/58204

Create a derive macro for HashStable and allow proc macros in rustc
rust-lang/rust/pull/58013

Move index updates off the web server
rust-lang/crates.io/pull/1588

Make Unique::as_ptr, NonNull::dangling and NonNull::cast const
rust-lang/rust/pull/58750

MaybeUninit: add read_initialized, add examples
rust-lang/rust/pull/58660

Add as_slice() to slice::IterMut and vec::Drain
rust-lang/rust/pull/58924

cargo: Emit warning on misspelled environment variables
rust-lang/cargo/pull/6694

rustdoc: add option to calculate "documentation coverage"
rust-lang/rust/pull/58626

News

New members for the Rust core team.
internals.rust-lang.org

Tools team changes.
internals.rust-lang.org

Raspberry Pi 3: Hardware debugging using JTAG.
rust-embedded/rust-raspi3-OS-tutorials/tree/master/0B_hw_debug_JTAG

From 46s to 5s - Optimizing a 350 line raytracer in Rust.
blog.usejournal.com

Should Rust channels panic on send if nobody's listening?
www.randomhacks.net

In nightly Rust, 'await!' may never return (dropping futures).
www.randomhacks.net

The rise of wgpu.
gfx-rs.github.io

Making a case: Rust for Python developers.
medium.com/@rajasekar3eg

Intro to web programming in Rust for NodeJS developers.
medium.com/@gruberbastian

Remote development and debugging of Rust with CLion.
medium.com/nearprotocol

This week in Rust and WebAssembly 13.
rustwasm.github.io

The Embedded WG newsletter 16.
rust-embedded.github.io

Crate of the week: validator

This week's crate is validator, a crate offering simple validation for Rust structs. Thanks to Willi Kappler for the suggestion!