error[E0599]: the method `clone` exists for struct `Foo<NonCopy>`, but its trait bounds were not satisfied
  --> $DIR/deriving-with-repr-packed-2.rs:18:11
   |
LL | pub struct Foo<T>(T, T, T);
   | -----------------
   | |
   | method `clone` not found for this struct
   | doesn't satisfy `Foo<NonCopy>: Clone`
LL |
LL | struct NonCopy;
   | --------------
   | |
   | doesn't satisfy `NonCopy: Clone`
   | doesn't satisfy `NonCopy: Copy`
...
LL |     _ = x.clone();
   |           ^^^^^ method cannot be called on `Foo<NonCopy>` due to unsatisfied trait bounds
   |
note: the following trait bounds were not satisfied:
      `NonCopy: Clone`
      `NonCopy: Copy`
  --> $DIR/deriving-with-repr-packed-2.rs:5:16
   |
LL | #[derive(Copy, Clone, Default, PartialEq, Eq)]
   |                ^^^^^ unsatisfied trait bound introduced in this `derive` macro
help: consider annotating `NonCopy` with `#[derive(Clone, Copy)]`
   |
LL | #[derive(Clone, Copy)]
   |

error: aborting due to previous error

For more information about this error, try `rustc --explain E0599`.