$ cargo build
   Compiling gui v0.1.0 (file:///projects/gui)
error[E0038]: the trait `Clone` cannot be made into an object
 --> src/lib.rs:2:21
  |
2 |     pub components: Vec<Box<dyn Clone>>,
  |                     ^^^^^^^^^^^^^^^^^^^ `Clone` cannot be made into an object
  |
  = note: the trait cannot be made into an object because it requires `Self: Sized`
  = note: for a trait to be "object safe" it needs to allow building a vtable to allow the call to be resolvable dynamically; for more information visit <https://doc.rust-lang.org/reference/items/traits.html#object-safety>

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.