error: unsupported on types with type parameters
  --> tests/ui/union.rs:16:10
   |
16 | #[derive(AsBytes)]
   |          ^^^^^^^
   |
   = note: this error originates in the derive macro `AsBytes` (in Nightly builds, run with -Z macro-backtrace for more info)

error: cannot derive Unaligned with repr(align(N > 1))
  --> tests/ui/union.rs:34:11
   |
34 | #[repr(C, align(2))]
   |           ^^^^^^^^

error: cannot derive Unaligned with repr(align(N > 1))
  --> tests/ui/union.rs:50:16
   |
50 | #[repr(packed, align(2))]
   |                ^^^^^^^^

error: cannot derive Unaligned with repr(align(N > 1))
  --> tests/ui/union.rs:56:18
   |
56 | #[repr(align(1), align(2))]
   |                  ^^^^^^^^

error: cannot derive Unaligned with repr(align(N > 1))
  --> tests/ui/union.rs:62:8
   |
62 | #[repr(align(2), align(4))]
   |        ^^^^^^^^

error[E0277]: the trait bound `AsBytes: FieldsAreSameSize<true>` is not satisfied
  --> tests/ui/union.rs:24:7
   |
24 | union AsBytes {
   |       ^^^^^^^ the trait `FieldsAreSameSize<true>` is not implemented for `AsBytes`
   |
   = help: the trait `FieldsAreSameSize<false>` is implemented for `AsBytes`
note: required by a bound in `assert_fields_are_same_size`
  --> tests/ui/union.rs:22:10
   |
22 | #[derive(AsBytes)]
   |          ^^^^^^^ required by this bound in `assert_fields_are_same_size`
   = note: this error originates in the derive macro `AsBytes` (in Nightly builds, run with -Z macro-backtrace for more info)

error[E0587]: type has conflicting packed and align representation hints
  --> tests/ui/union.rs:51:1
   |
51 | union Unaligned3 {
   | ^^^^^^^^^^^^^^^^