1 #### Note: this error code is no longer emitted by the compiler.
3 An attempt to implement the `Copy` trait for an enum failed because one of the
4 variants does not implement `Copy`. To fix this, you must implement `Copy` for
5 the mentioned variant. Note that this may not be possible, as in the example of
16 This fails because `Vec<T>` does not implement `Copy` for any `T`.
18 Here's another example that will fail:
28 This fails because `&mut T` is not `Copy`, even when `T` is `Copy` (this
29 differs from the behavior for `&T`, which is always `Copy`).