TWiR with AI summaries

This Week in Rust 624
Official
The Rust Project's 2025H2 goals focus on enhancing smart pointers, unblocking trait system capabilities, improving compilation speed and flexibility, and making Rust more ergonomic for higher-level use cases.
Rust 1.91.0 promotes Windows ARM64 to Tier 1, adds a warn-by-default lint for dangling raw pointers from local variables, and stabilizes many APIs including `strict` integer operations and `BTreeMap::extract_if`.
Foundation
Newsletters
Explore Cloudflare's internet-scale Rust proxy (Pingora), the evolution of Rust's excellent diagnostics (`annotate-snippets`), a community debate on "unmaintained" crates, and a detailed comparison of `std::sync::Mutex` and `parking_lot`.
Project/Tooling Updates
Developing UEFI in Rust with Patina opendevicepartnership.github.io
Patina is a pure Rust, secure, and opinionated UEFI DXE Core for modern firmware development with a monolithically compiled component model.
Announces `cgp-serde`, a Serde-compatible library that leverages Context-Generic Programming to bypass Rust's coherence rules, enabling deeply customizable, context-dependent, and capabilities-enabled serialization and deserialization.
CGP v0.6.0 streamlines context and provider implementation with `#[cgp_impl]`, direct delegation, and `#[cgp_inherit]` for a more ergonomic and Rust-friendly experience.
esp-hal 1.0.0 release announcement developer.espressif.com
Espressif announces the 1.0 release of `esp-hal`, a vendor-backed Rust SDK for embedded devices with stable core drivers (GPIO, UART, SPI, I2C) and async support.
Observations/Thoughts
`cargo-semver-checks` faced a perplexing build failure where `cargo check` passed, revealing a subtle difference in how `cargo doc` (used by the linter) and `cargo check` interpret `rustflags` vs. `rustdocflags` from `.cargo/config.toml`.
Learn how to leverage Rust's compiler and type system with idiomatic patterns to write robust, maintainable, and future-proof code.
Cloudflare engineers discuss Pingora, their Rust-based proxy handling 90M RPS, detailing why they chose Rust to replace Nginx across their global network.
This article discusses asynchronous programming in Rust, covering Futures, Executors, and Wakers, alongside memory management concepts like Move and Pin, to understand how Tokio and Smol operate.
A survey of Rust's SIMD options in 2025, comparing autovectorization, portable abstractions (`std::simd`, `pulp`), and raw intrinsics to guide implementation.
A podcast interview about building next-generation rail systems with Rust, featuring Tom Praderio of Parallel, and discussing Rust's outlook in the embedded space.
A EuroRust 2025 talk discusses the challenges and development of the COSMIC Linux desktop environment, including its Rust-native toolkit and Wayland compositor, by a System76 engineer.
Netstack.FM, a podcast by rama™ creators, offers deep dives and expert interviews on Rust-based networking and systems programming.
Rust Walkthroughs
Defines two public string constants, one labeled "secret" and the other a trivially "ciphered" version.
Implements a conversational AI chat feature in Rust using the Gemini API, demonstrating modular architecture, `reqwest` for HTTP, `serde` for API types, and `rustyline` for an interactive CLI.
Implements an Axum server for AI image classification using `tch-rs` (libtorch), processing multipart image uploads and leveraging CUDA.
A deep dive and benchmark comparison of Rust's `std::sync::Mutex` and `parking_lot::Mutex` shows `std` excels in low contention for throughput, while `parking_lot` provides superior fairness and predictability under heavy contention or bursty workloads.
Learn to use `nice`, `ionice`, and build optimizations to keep your Rust/Nix development environment responsive under heavy load.
Guide to integrating Rust with ClickHouse via `clickhouse-rs`, detailing setup, Serde usage, and addressing specific challenges with nullables, date/time, and `UInt128` types.
Discover why Rust's `SocketAddrV6` is not roundtrip serializable via JSON due to the `flowinfo` field being omitted from its textual representation, a quirk uncovered through property-based testing.
Discover how Parallel leverages Rust from bare metal to cloud to develop autonomous, platooning electric rail vehicles for cargo, tackling real-world safety certification and embedded system challenges.
Example of chained and composite multi-column sorting expressions in a Rust database query builder.
This article is Part 2 of building a Rust coding agent, focusing on implementing a chat CLI with Gemini API integration.
Miscellaneous
A personal project to rewrite PyTorch in Rust, detailing the implementation of `Tensor`s, `Operation`s (including broadcasting and matrix multiplication), and a global `Equation` graph for ML inference.