| error[E0596]: cannot borrow `x` as mutable, as it is not declared as mutable | |
| --> $DIR/E0596.rs:3:13 | |
| | | |
| LL | let x = 1; | |
| | - help: consider changing this to be mutable: `mut x` | |
| LL | let y = &mut x; | |
| | ^^^^^^ cannot borrow as mutable | |
| error: aborting due to previous error | |
| For more information about this error, try `rustc --explain E0596`. |