error[E0277]: `()` cannot be safely transmuted into `u8` --> $DIR/unit.rs:31:35 | LL | assert::is_transmutable::<(), u8>(); | ^^ the size of `()` is smaller than the size of `u8` | note: required by a bound in `is_transmutable` --> $DIR/unit.rs:16:14 | LL | pub fn is_transmutable() | --------------- required by a bound in this function LL | where LL | Dst: BikeshedIntrinsicFrom | |__________^ required by this bound in `is_transmutable` error: aborting due to 1 previous error For more information about this error, try `rustc --explain E0277`.