error[E0382]: use of moved value: `y`
  --> $DIR/liveness-move-in-while.rs:17:24
   |
LL |         println!("{}", y); //~ ERROR use of moved value: `y`
   |                        ^ value used here after move
LL |         while true { while true { while true { x = y; x.clone(); } } }
   |                                                    - value moved here
   |
   = note: move occurs because `y` has type `std::boxed::Box<isize>`, which does not implement the `Copy` trait

error[E0382]: use of moved value: `y`
  --> $DIR/liveness-move-in-while.rs:18:52
   |
LL |         while true { while true { while true { x = y; x.clone(); } } }
   |                                                    ^ value moved here in previous iteration of loop
   |
   = note: move occurs because `y` has type `std::boxed::Box<isize>`, which does not implement the `Copy` trait

error: aborting due to 2 previous errors

For more information about this error, try `rustc --explain E0382`.