| error[E0596]: cannot borrow `x` as mutable, as it is not declared as mutable | |
| --> $DIR/issue-37139.rs:12:18 | |
| | | |
| LL | test(&mut x); | |
| | ^^^^^^ cannot borrow as mutable | |
| | | |
| help: try removing `&mut` here | |
| | | |
| LL - test(&mut x); | |
| LL + test(x); | |
| | | |
| error: aborting due to 1 previous error | |
| For more information about this error, try `rustc --explain E0596`. |