| struct Foo {} | |
| impl<const UNUSED: usize> Drop for Foo {} | |
| //~^ ERROR: `Drop` impl requires `the constant `_` has type `usize`` | |
| //~| ERROR: the const parameter `UNUSED` is not constrained by the impl trait, self type, or predicates | |
| //~| ERROR: missing: `drop` | |
| fn main() {} |