error[E0499]: cannot borrow `*f` as mutable more than once at a time
  --> $DIR/moves-based-on-type-no-recursive-stack-closure.rs:20:27
   |
LL |                     (f.c)(f, true);
   |                     ----- ^      - first borrow ends here
   |                     |     |
   |                     |     second mutable borrow occurs here
   |                     first mutable borrow occurs here

error[E0382]: use of moved value: `f`
  --> $DIR/moves-based-on-type-no-recursive-stack-closure.rs:32:5
   |
LL |     let mut r = R {c: Box::new(f)};
   |                                - value moved here
LL |     f(&mut r, false)
   |     ^ value used here after move
   |
   = note: move occurs because `f` has type `F`, which does not implement the `Copy` trait

error: aborting due to 2 previous errors

Some errors occurred: E0382, E0499.
For more information about an error, try `rustc --explain E0382`.