| error[E0499]: cannot borrow `x` as mutable more than once at a time | |
| --> $DIR/issue-11715.rs:4:13 | |
| | | |
| LL | let y = &mut x; | |
| | ------ first mutable borrow occurs here | |
| LL | let z = &mut x; | |
| | ^^^^^^ second mutable borrow occurs here | |
| LL | z.use_mut(); | |
| LL | y.use_mut(); | |
| | - first borrow later used here | |
| error: aborting due to 1 previous error | |
| For more information about this error, try `rustc --explain E0499`. |