1 error[E0596]: cannot borrow immutable local variable `v` as mutable
2 --> $DIR/borrowck-mut-slice-of-imm-vec.rs:7:16
4 LL | let v = vec![1, 2, 3];
5 | - help: make this binding mutable: `mut v`
6 LL | write(&mut v); //~ ERROR cannot borrow
7 | ^ cannot borrow mutably
9 error: aborting due to previous error
11 For more information about this error, try `rustc --explain E0596`.