error[E0657]: `impl Trait` cannot capture higher-ranked lifetime from outer `impl Trait`
  --> $DIR/issue-88236-2.rs:15:61
   |
LL | fn make_impl() -> impl for<'a> Hrtb<'a, Assoc = impl Send + 'a> {}
   |                                                             ^^
   |
note: lifetime declared here
  --> $DIR/issue-88236-2.rs:15:28
   |
LL | fn make_impl() -> impl for<'a> Hrtb<'a, Assoc = impl Send + 'a> {}
   |                            ^^

error[E0657]: `impl Trait` cannot capture higher-ranked lifetime from outer `impl Trait`
  --> $DIR/issue-88236-2.rs:18:80
   |
LL | fn make_weird_impl<'b>(x: &'b ()) -> impl for<'a> Hrtb<'a, Assoc = impl Send + 'a> {
   |                                                                                ^^
   |
note: lifetime declared here
  --> $DIR/issue-88236-2.rs:18:47
   |
LL | fn make_weird_impl<'b>(x: &'b ()) -> impl for<'a> Hrtb<'a, Assoc = impl Send + 'a> {
   |                                               ^^

error[E0657]: `impl Trait` cannot capture higher-ranked lifetime from outer `impl Trait`
  --> $DIR/issue-88236-2.rs:23:78
   |
LL | fn make_bad_impl<'b>(x: &'b ()) -> impl for<'a> Hrtb<'a, Assoc = impl Send + 'a> {
   |                                                                              ^^
   |
note: lifetime declared here
  --> $DIR/issue-88236-2.rs:23:45
   |
LL | fn make_bad_impl<'b>(x: &'b ()) -> impl for<'a> Hrtb<'a, Assoc = impl Send + 'a> {
   |                                             ^^

error: aborting due to 3 previous errors

For more information about this error, try `rustc --explain E0657`.