1 error[E0308]: mismatched types
2 --> $DIR/issue-84128.rs:13:13
5 | ^^ expected integer, found `()`
7 note: return type inferred to be `{integer}` here
8 --> $DIR/issue-84128.rs:10:20
13 error: aborting due to previous error
15 For more information about this error, try `rustc --explain E0308`.