error[E0277]: the trait bound `NotZerocopy<AU16>: zerocopy::IntoBytes` is not satisfied
  --> tests/ui-nightly/transmute-src-not-intobytes.rs:19:32
   |
19 | const SRC_NOT_AS_BYTES: AU16 = transmute!(NotZerocopy(AU16(0)));
   |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |                                |
   |                                unsatisfied trait bound
   |                                required by a bound introduced by this call
   |
help: the trait `zerocopy::IntoBytes` is not implemented for `NotZerocopy<AU16>`
  --> tests/ui-nightly/../../zerocopy-derive/tests/include.rs
   |
   |     pub struct NotZerocopy<T = ()>(pub T);
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   = note: Consider adding `#[derive(IntoBytes)]` to `NotZerocopy<AU16>`
   = help: the following other types implement trait `zerocopy::IntoBytes`:
             ()
             AU16
             AtomicBool
             AtomicI16
             AtomicI32
             AtomicI64
             AtomicI8
             AtomicIsize
           and $N others
note: required by a bound in `SRC_NOT_AS_BYTES::transmute`
  --> tests/ui-nightly/transmute-src-not-intobytes.rs:19:32
   |
19 | const SRC_NOT_AS_BYTES: AU16 = transmute!(NotZerocopy(AU16(0)));
   |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |                                |
   |                                required by a bound in this function
   |                                required by this bound in `transmute`
   = note: this error originates in the macro `transmute` (in Nightly builds, run with -Z macro-backtrace for more info)