error[E0061]: this function takes 1 argument but 0 arguments were supplied
  --> $DIR/issue-58451.rs:12:9
   |
LL | / fn f<I>(i: I)
LL | | where
LL | |     I: IntoIterator,
LL | |     I::Item: for<'a> Into<&'a ()>,
   | |__________________________________- defined here
...
LL |       f(&[f()]);
   |           ^-- supplied 0 arguments
   |           |
   |           expected 1 argument

error: aborting due to previous error

For more information about this error, try `rustc --explain E0061`.