| error[E0376]: the trait `CoerceUnsized` may only be implemented for a coercion between structures | |
| --> $DIR/E0376.rs:18:1 | |
| | | |
| LL | impl<T, U> CoerceUnsized<U> for Foo<T> {} //~ ERROR E0376 | |
| | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | |
| error: aborting due to previous error | |
| For more information about this error, try `rustc --explain E0376`. |