error[E0573]: expected type, found variant `Ok` --> $DIR/issue-106062.rs:15:64 | LL | async fn connection_handler(handler: impl Sized) -> Result { | ^^ not a type | help: try using the variant's enum | LL | async fn connection_handler(handler: impl Sized) -> Result { | ~~~~~~~~~~~~~~~~~~~~ LL | async fn connection_handler(handler: impl Sized) -> Result { | ~~~~~~~~~~~~~~~~~~~ error: aborting due to 1 previous error For more information about this error, try `rustc --explain E0573`.