$ cargo build
   Compiling gui v0.1.0 (file:///projects/gui)
error[E0038]: the trait `std::clone::Clone` cannot be made into an object
 --> src/lib.rs:2:5
  |
2 |     pub components: Vec<Box<dyn Clone>>,
  |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `std::clone::Clone` cannot be made into an object
  |
  = note: the trait cannot require that `Self : Sized`

error: aborting due to previous error

For more information about this error, try `rustc --explain E0038`.
error: could not compile `gui`.

To learn more, run the command again with --verbose.
