Rust周报 389(译)

• this-week-in-rust
• 日期：2021-05-05
• 原文：388 期

你好，欢迎再来一期本周的螃蟹行情！Rust是一种追求三位一体的系统语言：安全性、并发性和速度。这是它的进展和社区的每周总结。有什么要说的吗？推特@ThisWeekInRust或向我们发送请求。 想参与吗？我们热爱贡献.

这本周的螃蟹行情是在在 Github 上公开的。如果你在本周的问题中发现任何错误，请提交 PR。

Updates from Rust Community

Official

• Announcing Rustup 1.24.1
• /[Inside] rustup 1.24.0 release incident report for 2021-04-27
• /[Inside] 1.52.0 pre-release testing
• /[Inside] core team update: may 2021
• /[Foundation] q12021 membership update

Newsletters

• This Month in Rust OSDev (April 2021)

Project/Tooling Updates

• One Third Of 2021
• This Week In TensorBase 1
• gfx/wgpu releases 0.8
• Last Month in Flott (运动控制 Toolkit in Rust) - May 2021
• rust-analyzer Changelog #75
• GCC Rust Monthly Report #5 April 2021
• RustCrypto Release Announcements (aead, cipher, crypto, elliptic-curve, ecdsa, and more)

Observations/Thoughts

• How Rust makes Rayon’s data parallelism magical
• Making Generative Art with Rust
• An Incomplete Explanation of the Proc Macro ，让我省了 4000 Lines of Rust
• 最被低估，但有用的 Rust standard library type
• Guaranteed unique; Or, 为什么喂狗会很累。
• The Great Rewriting in Rust
• A story about async Rust and using !Send types
• Compilers as Teachers
• Making Generative Art with Rust: 采访 Alexis André
• Building on the Shoulders of Giants: Combining TensorFlow and Rust
• Let’s make everything iterable - Iterate over pagination result in the Rest API
• [video] 采访 niko matsakis, co-lead of the rust language team

Rust Walkthroughs

• Introduction to gRPC in Rust
• I2C on the Pinephone
• Late Night Confessions - Building a Website Using Rust, Rocket, Diesel, and Askama - Part 3
• Rust ownership and borrows - Fighting the borrow-checker
• Running Rust on Android
• 使用 GDB and defmt ，调试 embedded programs
• Data Modelling in Rust p1
• Data Modelling in Rust p2
• Embedding Rust code in Java Jar for distribution
• Late Night Confessions — Building a Website Using Rust, Rocket, Diesel, and Askama - Part 3
• 用 KAS GUI 做一个Counter和Calculator
• [ZH][series] Build GraphQL services based on Async Rust using tide + async-graphql + mongodb (基于 Async Rust 构建 GraphQL 服务，使用 tide + async-graphql + mongodb) - Part 3
• [ZH][series] Build GraphQL services based on Async Rust using actix-web + async-graphql + rbatis + postgresql / mysql (基于 actix-web + async-graphql + rbatis + postgresql / mysql 构建异步 Rust GraphQL 服务) - Part 2
• [video] crust of rust: dispatch and fat pointers
• [video] ockam | oss community call | april 2021

Papers/Research Projects

• New Variant of Buer Loader Written in Rust
• Is it possible to write 免费成本，循环的 数据结构 in safe, stable Rust?

Miscellaneous

• Rust’s Most Unrecognized Contributor
• Facebook Joins the Rust Foundation
• A brief history of Rust at Facebook
• rustc 性能提升 from rust 1.46 to 1.51
• Microsoft joins Bytecode Alliance，推进 WebAssembly - aka the thing that lets you run compiled C/C++/Rust code in browsers

Crate of the Week

这周的箱子是display_utils，能够Display的结构，简化字符串操作。

谢谢kangalioo提名

Submit your suggestions and votes for next week！

Call for Participation

一直想为开源项目做贡献，但不知道从哪里开始？每周我们都会重点介绍 Rust 社区中的一些任务，供您选择和开始！

其中一些任务也可能有导师，请访问任务页面以获取更多信息。

如果您是 Rust 项目的所有者并且正在寻找贡献者，请提交任务here。

• paru - Add -P –stats

Updates from Rust Core

共有 322 个拉取请求merged in the last week

• 添加 feature-gated #[no_coverage] function attribute, 用来修复 derived Eq 0 coverage
• 给出一个更好的错误信息，when std or core are missing
• 对 unit enum variant when matched with a pattern，给出建议
• 避免为 each key type，都生成 QueryMap::extend
• remove dead code in rustc_session::Options
• move iter_results to dyn FnMut rather than a generic
• miri: throw UB if f*_fast intrinsic called with non-finite value
• miri: use harness = false instead of #![feature(custom_test_frameworks)]
• LLVM: don’t merge thread_local constants with non-thread_local constants
• 更严格：rejecting LLVM reserved registers in asm!
• stabilize vec_extend_from_within
• stabilize ordering_helpers
• override clone_from method for PathBuf and OsString
• 简化 Mutex::into_inner
• i8 and u8::to_string() specialisation
• reuse sys::unix::cmath on other platforms
• add ErrorKind::OutOfMemory
• add std::os::unix::fs::chroot to change the root directory of the current process
• 内联大量的 raw socket, fd and handle conversions
• socket2: allow for niche optimization on Unix platforms
• regex: 修复 lazy DFA false quits on ASCII text
• regex: 更新到最新的 memchr + upgrade to Rust 2018 + bump MSRV to Rust 1.41
• cargo: add report subcommand
• cargo: show transfer rate when fetching/updating registry index
• rustdoc: remove unnecessary provided_trait_methods field from Impl
• rustdoc: shrink doctree::Module
• datafrog: micro-optimize binary_search
• clippy: fix a false-positive inside const fn in comparison_chain
• clippy: implicit_return improvements
• clippy: while_immutable_cond: check condition for mutation
• clippy: fix false negative in iter_cloned_collect with a large array

Rust Compiler Performance Triage

安静的一周，无明显变化。

分流由 @simulacrum。修订范围：537544..7a0f178

Full report here。

Approved RFCs

对 Rust 的更改跟随 RustRFC (request for comments) process。以下是本周批准实施的 RFC：

• Target tier policy
• add const-ub RFC

Final Comment Period

每周the team宣布即将做出决定的 RFC 和主要 PR 的“最终意见征询期”。立即发表您的意见。

RFCs

• [disposition: merge] a new prelude for the 2021 edition (trait-only edition)

Tracking Issues & PRs

• [disposition: merge] FCP poll for ErrorKind::OutOfMemory
• [disposition: merge] impl FromStr for proc_macro::Literal
• [disposition: merge] rustdoc: Make “rust code block is empty” and “could not parse code block” warnings a lint (INVALID_RUST_CODEBLOCKS)
• [disposition: merge] Uplift the invalid_atomic_ordering lint from clippy to rustc
• [disposition: merge] Stabilize “RangeFrom” patterns
• [disposition: merge] Stabilize extended_key_value_attributes

New RFCs

• RFC: Preview for Unstable Features
• Rust-lang crate ownership policy

Quote of the Week

使用 R 或 Numpy 就像在跑车上驾驶一样。您只要转动车轮，踩下踏板并燃烧橡胶即可。Rust（和其他系统语言）就像是一艘太空飞船。您可以去一些地方，去做，在汽车上不敢想的事情。是的，他们更难驾驶，但可能性似乎是无限的！由于 Rust 生态系统仍在开发中，因此感觉太空飞船的零件，也就放在标有“需要组装”的工具箱中。

– Erik Rose on rust-users

Thanks to Phlopsi for the suggestion!

Please submit quotes and vote for next week!

This Week in Rust is edited by: nellshamrell, llogiq, and cdmistman.

Discuss on r/rust