1error[E0277]: the trait bound `Dst: AsBytes` is not satisfied
2  --> tests/ui-stable/transmute-mut-dst-not-asbytes.rs:24:36
3   |
424 | const DST_NOT_AS_BYTES: &mut Dst = transmute_mut!(&mut Src);
5   |                                    ^^^^^^^^^^^^^^^^^^^^^^^^
6   |                                    |
7   |                                    the trait `AsBytes` is not implemented for `Dst`
8   |                                    required by a bound introduced by this call
9   |
10   = help: the following other types implement trait `AsBytes`:
11             ()
12             F32<O>
13             F64<O>
14             I128<O>
15             I16<O>
16             I32<O>
17             I64<O>
18             ManuallyDrop<T>
19           and $N others
20note: required by a bound in `AssertDstIsAsBytes`
21  --> tests/ui-stable/transmute-mut-dst-not-asbytes.rs:24:36
22   |
2324 | const DST_NOT_AS_BYTES: &mut Dst = transmute_mut!(&mut Src);
24   |                                    ^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `AssertDstIsAsBytes`
25   = note: this error originates in the macro `transmute_mut` (in Nightly builds, run with -Z macro-backtrace for more info)
26