error[E0277]: the trait bound `NotZerocopy: FromBytes` is not satisfied --> tests/ui-stable/transmute-ref-dst-not-frombytes.rs:18:42 | 18 | const DST_NOT_FROM_BYTES: &NotZerocopy = transmute_ref!(&AU16(0)); | ^^^^^^^^^^^^^^^^^^^^^^^^ | | | the trait `FromBytes` is not implemented for `NotZerocopy` | required by a bound introduced by this call | = help: the following other types implement trait `FromBytes`: isize i8 i16 i32 i64 i128 usize u8 and $N others note: required by a bound in `AssertIsFromBytes` --> tests/ui-stable/transmute-ref-dst-not-frombytes.rs:18:42 | 18 | const DST_NOT_FROM_BYTES: &NotZerocopy = transmute_ref!(&AU16(0)); | ^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `AssertIsFromBytes` = note: this error originates in the macro `transmute_ref` (in Nightly builds, run with -Z macro-backtrace for more info)