src/test/ui/nll/issue-46589.stderr

   1 error[E0499]: cannot borrow `**other` as mutable more than once at a time
   2   --> $DIR/issue-46589.rs:23:21
   3    |
   4 LL |         *other = match (*other).get_self() {
   5    |                        ------------------- first mutable borrow occurs here
   6 LL |             Some(s) => s,
   7 LL |             None => (*other).new_self()
   8    |                     ^^^^^^^^^^^^^^^^^^^
   9    |                     |
  10    |                     second mutable borrow occurs here
  11    |                     first borrow later used here
  12
  13 error: aborting due to previous error
  14
  15 For more information about this error, try `rustc --explain E0499`.