1 error[E0308]: mismatched types
2 --> $DIR/slice-mut.rs:7:22
4 LL | let y: &mut[_] = &x[2..4];
5 | ^^^^^^^^ types differ in mutability
7 = note: expected type `&mut [_]`
10 error: aborting due to previous error
12 For more information about this error, try `rustc --explain E0308`.