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error[E0277]: `Superset` cannot be safely transmuted into `Subset` in the defining scope of `assert::Context`.
--> $DIR/should_reject_contraction.rs:35:41
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LL | assert::is_transmutable::<Superset, Subset>();
| ^^^^^^ `Superset` cannot be safely transmuted into `Subset` in the defining scope of `assert::Context`.
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= help: the trait `BikeshedIntrinsicFrom<Superset, assert::Context, Assume { alignment: false, lifetimes: false, safety: true, validity: false }>` is not implemented for `Subset`
note: required by a bound in `is_transmutable`
--> $DIR/should_reject_contraction.rs:13:14
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LL | pub fn is_transmutable<Src, Dst>()
| --------------- required by a bound in this
LL | where
LL | Dst: BikeshedIntrinsicFrom<Src, Context, { Assume::SAFETY }>
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `is_transmutable`
error: aborting due to previous error
For more information about this error, try `rustc --explain E0277`.
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