src/test/ui/error-codes/E0499.stderr

   1 error[E0499]: cannot borrow `i` as mutable more than once at a time
   2   --> $DIR/E0499.rs:14:22
   3    |
   4 13 |     let mut x = &mut i;
   5    |                      - first mutable borrow occurs here
   6 14 |     let mut a = &mut i; //~ ERROR E0499
   7    |                      ^ second mutable borrow occurs here
   8 15 | }
   9    | - first borrow ends here
  10
  11 error: aborting due to previous error
  12