| error[E0499]: cannot borrow `b` as mutable more than once at a time | |
| --> $DIR/mut-cant-alias.rs:19:20 | |
| | | |
| LL | let b1 = &mut *b; | |
| | - first mutable borrow occurs here | |
| LL | let b2 = &mut *b; //~ ERROR cannot borrow | |
| | ^ second mutable borrow occurs here | |
| LL | b1.use_mut(); | |
| | -- first borrow later used here | |
| error: aborting due to previous error | |
| For more information about this error, try `rustc --explain E0499`. |