Radar · Rust · Archive · Week 7 · Feb 9 – 15, 2026

Rust 1.93.1 released

Worth knowingtooling

What changed: The Rust team released version 1.93.1.
Production impact: The source does not say.
Try it: Run rustc --version to confirm the new version is installed.
Source: blog.rust-lang.org/2026/02/12/Rust-1.93.1/

Understand it, then run it

Rust 1.93.1 is a new point release that fixes a few bugs that slipped into the previous 1.93.0 version. The main problems were an internal compiler error that could happen when using rustfmt, a false warning from clippy about unwrapping, and a leak of file descriptors when building WebAssembly for the wasm32-wasip2 target. The release is delivered through rustup with the command rustup update stable. No new language features or APIs are added, so existing code will compile unchanged.

Run it now

Todayrust

// This program demonstrates that the compiler and tooling work correctly
// after applying Rust 1.93.1. It simply prints a message and exits.
fn main() {
    // Print a greeting to show that the program runs.
    println!("Hello, Rust 1.93.1 is installed and working!");
}

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

Hello, Rust 1.93.1 is installed and working!

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