Rust Devblog 261 -
fn main() -> Result<()> let re = Regex::new(r"\d+")?; println!("Found numbers: :?", re.find_all("a1 b2 c3")); Ok(())
Temporarily building an older crate that declares rust-version = "1.80" while you’re on 1.75 . rust devblog 261
if n.is_multiple_of(7) ...
let x = 42u32; assert!(x.is_multiple_of(7)); assert!(!x.is_multiple_of(5)); Avoids division by zero — it’s a panic (same as % ). 5. Cargo: --ignore-rust-version flag What’s new: Build crates even if they require a newer Rust version than your current toolchain. fn main() -> Result<()> let re = Regex::new(r"\d+")
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. fn main() ->
if n % 7 == 0 ...
If you use #![deny(clippy::pedantic)] or custom lints, they are now more predictable.