error[E0271]: type mismatch resolving `<[closure@$DIR/issue-63279.rs:8:5: 8:28] as std::ops::FnOnce<()>>::Output == ()` | |
--> $DIR/issue-63279.rs:5:16 | |
| | |
LL | type Closure = impl FnOnce(); | |
| ^^^^^^^^^^^^^ expected opaque type, found `()` | |
| | |
= note: expected opaque type `impl std::ops::FnOnce<()>` | |
found unit type `()` | |
= note: the return type of a function must have a statically known size | |
error: aborting due to previous error | |
For more information about this error, try `rustc --explain E0271`. |