1 error[E0061]: this function takes 1 argument but 0 arguments were supplied
2 --> $DIR/issue-58451.rs:12:9
6 LL | | I: IntoIterator,
7 LL | | I::Item: for<'a> Into<&'a ()>,
12 | ^-- supplied 0 arguments
16 error: aborting due to previous error
18 For more information about this error, try `rustc --explain E0061`.