Ignoring revisions in .git-blame-ignore-revs. Click here to bypass and see the normal blame view.
//@ run-rustfix
#![allow(dead_code)]
fn main() {
fn x(a: &char) {
let &(mut b) = a;
b.make_ascii_uppercase();
//~^ cannot borrow `b` as mutable, as it is not declared as mutable
}