1 error[E0580]: main function has wrong type
2 --> $DIR/bad-main.rs:11:1
4 LL | fn main(x: isize) { } //~ ERROR: main function has wrong type [E0580]
5 | ^^^^^^^^^^^^^^^^^ incorrect number of function parameters
7 = note: expected type `fn()`
10 error: aborting due to previous error
12 For more information about this error, try `rustc --explain E0580`.