1 error[E0596]: cannot borrow immutable local variable `x` as mutable
2 --> $DIR/borrowck-mut-addr-of-imm-var.rs:13:30
5 | - help: make this binding mutable: `mut x`
6 LL | let y: &mut isize = &mut x; //~ 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`.