error[E0277]: the size for values of type `dyn Values` cannot be known at compilation time
  --> src/lib.rs:54:49
   |
54 |         self.unsafe_write(THREADED_OBJECT_SPACE.create(Box::new(x))).await;
   |                                                 ^^^^^^ doesn't have a size known at compile-time
   |
   = help: the trait `std::marker::Sized` is not implemented for `dyn Values`
   = note: to learn more, visit <https://doc.rust-lang.org/book/ch19-04-advanced-types.html#dynamically-sized-types-and-the-sized-trait>
   = note: required because of the requirements on the impl of `_::_gcmodule::Trace` for `std::boxed::Box<dyn Values>`