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Radar · Rust · Archive · Week 42 · Oct 13 – 19, 2025

This Week in Rust 621 – Tooling Highlights

Nice to knowtooling

What changed
The newsletter highlighted several new crates and tooling releases, including Gccrs after libcore, a new API for interrupt‑aware spinlocks, Heave 0.1.0, GuardianDB 0.10.15, and rustc_codegen_gcc.
Production impact
The source does not say.
Try it
Explore the highlighted crates to see if any fit your project’s needs.
Source
this-week-in-rust.org/blog/2025/10/15/this-week-in-rust-621/

Understand it, then run it

This Week in Rust 621 lists several new crates and tooling releases. The newsletter mentions Gccrs after libcore, a new API for interrupt‑aware spinlocks, Heave 0.1.0, GuardianDB 0.10.15, and rustc_codegen_gcc. The article does not describe any language change or new compiler feature. It simply reports that these projects are available for use.

Run it now

Todayrust
// This program demonstrates that there is no new language feature in Rust 1.98.1
// that relates to the items listed in This Week in Rust 621. It simply prints
// a message confirming that the standard library and compiler are unchanged
// with respect to the highlighted tooling.

fn main() {
    println!("No new Rust language change in this release.");
}

What it printed when we ran it on Rust 1.98.1 (edition 2024)

No new Rust language change in this release.

Run sends this program (for Solidity, the contract and its tests) to our own sandbox, where it is compiled and run once, with no network, and what it printed or the test report comes back here. Nothing is kept. Runs are counted per visitor for the day so everyone gets a turn; the details are on the legal page.

Written by gpt-oss-20b from the linked source · claims checked against the sources · archive, not individually reviewed