1 error[E0308]: mismatched types
2 --> $DIR/output-type-mismatch.rs:5:31
4 LL | fn main() { let i: isize; i = f(); }
5 | ----- ^^^ expected `isize`, found `()`
7 | expected due to this type
9 error: aborting due to previous error
11 For more information about this error, try `rustc --explain E0308`.