error: higher kinded lifetime bounds on nested opaque types are not supported yet
  --> $DIR/issue-67830.rs:21:62
   |
LL | fn test() -> impl for<'a> MyFn<&'a A, Output=impl Iterator + 'a> {
   |                                                              ^^
   |
note: lifetime declared here
  --> $DIR/issue-67830.rs:21:23
   |
LL | fn test() -> impl for<'a> MyFn<&'a A, Output=impl Iterator + 'a> {
   |                       ^^

error: aborting due to previous error