1 error[E0596]: cannot borrow `x` as mutable, as it is not declared as mutable
2 --> $DIR/borrowck-mut-addr-of-imm-var.rs:3:25
5 | - help: consider changing this to be mutable: `mut x`
6 LL | let y: &mut isize = &mut x;
7 | ^^^^^^ cannot borrow as mutable
9 error: aborting due to previous error
11 For more information about this error, try `rustc --explain E0596`.