| error[E0499]: cannot borrow `v` as mutable more than once at a time | |
| --> $DIR/one_line.rs:3:12 | |
| | | |
| LL | v.push(v.pop().unwrap()); | |
| | - ---- ^ second mutable borrow occurs here | |
| | | | | |
| | | first borrow later used by call | |
| | first mutable borrow occurs here | |
| | | |
| help: try adding a local storing this argument... | |
| --> $DIR/one_line.rs:3:12 | |
| | | |
| LL | v.push(v.pop().unwrap()); | |
| | ^^^^^^^ | |
| help: ...and then using that local as the argument to this call | |
| --> $DIR/one_line.rs:3:5 | |
| | | |
| LL | v.push(v.pop().unwrap()); | |
| | ^^^^^^^^^^^^^^^^^^^^^^^^ | |
| error: aborting due to 1 previous error | |
| For more information about this error, try `rustc --explain E0499`. |