Rust Devblog 261 (2026)
Better error messages for your macro users.
fn main() -> Result<()> let re = Regex::new(r"\d+")?; println!("Found numbers: :?", re.find_all("a1 b2 c3")); Ok(()) rust devblog 261
cargo script script.rs Add #!/usr/bin/env cargo-script shebang and chmod +x for executable scripts. 4. Standard library: integer::is_multiple_of What’s new: New method is_multiple_of on integer types. Better error messages for your macro users