1 error[E0050]: method `bar` has 1 parameter but the declaration in trait `Foo::bar` has 2
2 --> $DIR/impl-different-num-params.rs:5:12
4 LL | fn bar(&self, x: usize) -> Self;
5 | --------------- trait requires 2 parameters
7 LL | fn bar(&self) -> isize {
8 | ^^^^^ expected 2 parameters, found 1
10 error: aborting due to previous error
12 For more information about this error, try `rustc --explain E0050`.