error[E0277]: `Src` cannot be safely transmuted into `Dst` in the defining scope of `should_pad_variants::Context` --> $DIR/should_pad_variants.rs:44:36 | LL | assert::is_transmutable::(); | ^^^ The size of `Src` is smaller than the size of `Dst` | note: required by a bound in `is_transmutable` --> $DIR/should_pad_variants.rs:13:14 | 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`.