pub static RUST_2024_INCOMPATIBLE_PAT: &Lint
Expand description

The rust_2024_incompatible_pat lint detects patterns whose meaning will change in the Rust 2024 edition.



if let Some(&a) = &Some(&0u8) {
    let _: u8 = a;
if let Some(mut _a) = &mut Some(0u8) {
    _a = 7u8;



In Rust 2024 and above, the mut keyword does not reset the pattern binding mode, and nor do & or &mut patterns. The lint will suggest code that has the same meaning in all editions.