error[E0277]: the trait bound `Dst: FromBytes` is not satisfied --> tests/ui-msrv/transmute-mut-dst-not-frombytes.rs:24:38 | 24 | const DST_NOT_FROM_BYTES: &mut Dst = transmute_mut!(&mut Src); | ^^^^^^^^^^^^^^^^^^^^^^^^ the trait `FromBytes` is not implemented for `Dst` | note: required by `AssertDstIsFromBytes` --> tests/ui-msrv/transmute-mut-dst-not-frombytes.rs:24:38 | 24 | const DST_NOT_FROM_BYTES: &mut Dst = transmute_mut!(&mut Src); | ^^^^^^^^^^^^^^^^^^^^^^^^ = note: this error originates in the macro `transmute_mut` (in Nightly builds, run with -Z macro-backtrace for more info)