error[E0057]: this function takes 0 arguments but 1 argument was supplied --> $DIR/wrong_argument_ice-4.rs:2:5 | LL | (|| {})(|| { | _____^^^^^^^_- | | | | | expected 0 arguments LL | | LL | | let b = 1; LL | | }); | |_____- supplied 1 argument error: aborting due to previous error For more information about this error, try `rustc --explain E0057`.