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