error[E0061]: this method takes 1 argument but 0 arguments were supplied --> $DIR/issue-102645.rs:16:22 | LL | Pin::new(&mut b).resume(); | ^^^^^^-- an argument of type `()` is missing | note: method defined here --> $SRC_DIR/core/src/ops/generator.rs:LL:COL help: provide the argument | LL | Pin::new(&mut b).resume(()); | ~~~~ error: aborting due to previous error For more information about this error, try `rustc --explain E0061`.