1 error[E0061]: this function takes 1 argument but 0 arguments were supplied
2 --> $DIR/arg-count-mismatch.rs:5:28
4 LL | fn main() { let i: (); i = f(); }
5 | ^-- supplied 0 arguments
9 note: function defined here
10 --> $DIR/arg-count-mismatch.rs:3:4
12 LL | fn f(x: isize) { }
15 error: aborting due to previous error
17 For more information about this error, try `rustc --explain E0061`.