Rust周报 390(译)

• this-week-in-rust
• 日期：2021-05-12
• 原文：390 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

• The Plan for the Rust 2021 Edition
• Announcing Rust 1.52.1
• Announcing Rust 1.52.0

Newsletters

• This Month in Rust GameDev #21 - April 2021
• RiB Newsletter #23 - Rewriting in Rust?

Project/Tooling Updates

• rust-analyzer Changelog #76
• Knurling-rs changelog #24: three releases, defmt-test supports more items and a nasty issue
• This Week In TensorBase 2
• Naga：shader translation 基准测试
• Announcing egui 0.12 - the simple GUI library
• GCC Rust Weekly Status Report 14
• Integrating Rust Into the Android Open Source Project
• A New AWS SDK for Rust - Alpha Launch
• Gleam v0.15 released!
• IsomorphicDB. The Road ahead
• My first Rust crate, pretend

Observations/Thoughts

• Rust on the Frontend and Backend
• Why we should consider Rust for Embedded Developement?
• Aiming for idiomatic Rust
• Optimizing 7000 CPUs Away with Rust
• Improving our development confidence and productivity with Bors
• Increasing the level of parallelism in DataFusion 4.0
• My second impression of Rust and why I think it’s the best general-purpose language!
• Incrementally porting a small Python project to Rust
• [video] rust verification workshop 2021 - ferrite: a rust edsl for message-passing protocol verification
• [video] rust verification workshop 2021 - rustbelt: a quick dive into the abyss
• [video] rust verification workshop 2021 - polonius
• [video] rust verification workshop 2021 - rust interest in safety- and mission-critical environments
• [video] rust verification workshop 2021 - leveraging compiler intermediate representation for multi- and cross-language verification

Rust Walkthroughs

• BABE – 共识算法 and How to Implement it
• Pallets（构建运行时的核心） in Substrate（区块链开发框架） and using them in runtime.
• How to deploy Rust web app with DigitalOcean
• Learning Rust #4: Parsing JSON with strong types
• How to use Rust web framework Warp
• Ray Tracing in One Weekend
• Procedural Macros: Error handling
• Speeding up algorithms with arena allocators
• Building a REST and Web Socket API with Actix and Rust
• Building Rust binaries in CI that work with older GLIBC
• [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 4
• [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 3
• [video] graphs in rust: what is a graph? representing them in rust
• [video] rust verification workshop 2021 - peeking at compiler-internal data (for fun and profit)
• [video] rust verification workshop 2021 - verifying that rust programs don’t crash
• [video] rust verification workshop 2021 - crux-mir: symbolic testing for rust
• [video] rust verification workshop 2021 - rustv: semi-automatic verification of unsafe rust programs
• [video] rust verification workshop 2021 - towards automatic verification of unsafe rust with constrained horn solvers
• [video] rust verification workshop 2021 - prusti - deductive verification for rust
• [video] rust verification workshop 2021 - creusot: a prototype tool for verification of rust software
• [video] rust verification workshop 2021 - hacspec: succinct, executable, verifiable specifications for high-assurance cryptography

Miscellaneous

• Building Rust binaries in CI that work with older GLIBC
• Rust 不断创新
• What can C++ do that Rust can’t? (2021 edition)
• [video] the rust borrow checker—a deep dive @ rust dc, april 20, 2021 w/ nell shamrell-harrington

Crate of the Week

这周的箱子是tokio-console，类似于“top”的实用程序，用于查看您的任务运行情况。

谢谢Simon Farnsworth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。

• advent_of_code_traits - Improve the efficiency of the default run method
• compress-tools-rs - Cannot statically compile on Windows due to linking failure, exit code 1120

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。

Updates from Rust Core

共有 324 个拉取请求merged in the last week

• fix duplicate unknown lint errors
• improve diagnostics for functions in struct definitions
• ensure failing promoteds in const/static bodies are handled correctly
• implement Native link modifiers（RFC#2951）
• deduplicate native libs before they are passed to the linker
• retain data in vectorized registers for longer
• only compute Obligation cache_key once in register_obligation_at
• “const” initialized thread locals in rustc
• streamline try_start code
• simplify chdir implementation and minimize unsafe block
• optimize BufWriter
• provide io::Seek::rewind
• stablize {HashMap, BTreeMap}::into_{keys, values}
• futures: add FuturesUnordered::into_iter, make iter_pin_ref public
• regex: fix compilation with pattern feature
• datafrog: speed up Relation::merge
• cargo: improve two error messages
• rustdoc: fix source code line number display and make it clickable again
• compiletest: add needs-unwind and beginning of support for testing panic=abort std
• clippy: fix stack overflow issue in redundant_pattern_matching
• clippy: fix eval_order_dependence async false positive
• clippy: fix unused_unit macro false positive
• clippy: fix needless_quesiton_mark false positive
• clippy: for to_* variant don’t lint in trait impl taking self when non-Copy type
• clippy: fix unnecessary_filter_map false positive
• clippy needless_collect: Lint cases with type annotations for indirect usage and recognize BinaryHeap

Rust Compiler Performance Triage

总体上变化不大 —— 除了 PR 的 libcore 的编译时间提高了 2 倍之外，退步和改进都很小#83278。

分流由 @pnkfelix。修订范围：7a0f..382f

2 个退步，3 个改进，0 个混合 0 个在 rollups

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：

• RFC: Reserved prefixes in the 2021 edition

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)
• [disposition: postpone] Allow Overloading || and &&

Tracking Issues & PRs

• [disposition: merge] stabilize const_fn_unsize
• [disposition: merge] FCP poll for ErrorKind::OutOfMemory
• [disposition: merge] impl FromStr for proc_macro::Literal
• [disposition: merge] stabilize member constraints
• [disposition: merge] Uplift the invalid_atomic_ordering lint from clippy to rustc
• [disposition: merge] Stabilize “RangeFrom” patterns
• [disposition: merge] Stabilize extended_key_value_attributes
• [disposition: merge] Add functions Duration::try_from_secs_{f32, f64}

New RFCs

• Scrape code examples from examples/ directory for Rustdoc

Quote of the Week

除非您花费数周的时间进行 Rust 构建，不然你会对 Rust 无感。最初的陡峭学习曲线可能会令人沮丧或充满挑战，具体取决于您如何看待它，但是一旦过去，那就很难不喜欢它了。毕竟，会如同拥有超能力一般 💗

– Deepu K Sasidharan on their blog

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