+++ /dev/null
-error[E0271]: type mismatch resolving `<[closure@$DIR/issue-63279.rs:8:5: 8:28] as FnOnce<()>>::Output == ()`
- --> $DIR/issue-63279.rs:5:16
- |
-LL | type Closure = impl FnOnce();
- | ^^^^^^^^^^^^^ expected opaque type, found `()`
- |
- = note: expected opaque type `impl FnOnce<()>`
- found unit type `()`
-
-error: aborting due to previous error
-
-For more information about this error, try `rustc --explain E0271`.