error[E0308]: mismatched types --> $DIR/dont-record-adjustments-when-pointing-at-arg.rs:26:37 | LL | ns_window.setFrame_display_(0); | ----------------- ^ expected `()`, found integer | | | arguments to this method are incorrect | note: method defined here --> $DIR/dont-record-adjustments-when-pointing-at-arg.rs:5:8 | LL | fn setFrame_display_(self, display: ()) {} | ^^^^^^^^^^^^^^^^^ ----------- error: aborting due to previous error For more information about this error, try `rustc --explain E0308`.