error[E0271]: type mismatch resolving `<L<[closure@issue-62203-hrtb-ice.rs:42:16]> as T0<'r, (&u8,)>>::O == <_ as Ty<'r>>::V`
  --> $DIR/issue-62203-hrtb-ice.rs:39:9
   |
LL |       let v = Unit2.m(
   |                     - required by a bound introduced by this call
LL | /         L {
LL | |
LL | |
LL | |             f: |x| {
...  |
LL | |             },
LL | |         },
   | |_________^ type mismatch resolving `<L<[closure@issue-62203-hrtb-ice.rs:42:16]> as T0<'r, (&u8,)>>::O == <_ as Ty<'r>>::V`
   |
note: expected this to be `<_ as Ty<'_>>::V`
  --> $DIR/issue-62203-hrtb-ice.rs:21:14
   |
LL |     type O = T::Output;
   |              ^^^^^^^^^
   = note: expected associated type `<_ as Ty<'_>>::V`
                       found struct `Unit4`
   = help: consider constraining the associated type `<_ as Ty<'_>>::V` to `Unit4` or calling a method that returns `<_ as Ty<'_>>::V`
   = note: for more information, visit https://doc.rust-lang.org/book/ch19-03-advanced-traits.html
note: required by a bound in `T1::m`
  --> $DIR/issue-62203-hrtb-ice.rs:27:51
   |
LL |     fn m<'a, B: Ty<'a>, F>(&self, f: F) -> Unit1
   |        - required by a bound in this associated function
LL |     where
LL |         F: for<'r> T0<'r, (<Self as Ty<'r>>::V,), O = <B as Ty<'r>>::V>,
   |                                                   ^^^^^^^^^^^^^^^^^^^^ required by this bound in `T1::m`

error[E0271]: expected `[closure@issue-62203-hrtb-ice.rs:42:16]` to be a closure that returns `Unit3`, but it returns `Unit4`
  --> $DIR/issue-62203-hrtb-ice.rs:39:9
   |
LL |       let v = Unit2.m(
   |                     - required by a bound introduced by this call
LL | /         L {
LL | |
LL | |
LL | |             f: |x| {
...  |
LL | |             },
LL | |         },
   | |_________^ expected `Unit3`, found `Unit4`
   |
note: required for `L<[closure@$DIR/issue-62203-hrtb-ice.rs:42:16: 42:19]>` to implement `for<'r> T0<'r, (&'r u8,)>`
  --> $DIR/issue-62203-hrtb-ice.rs:17:16
   |
LL | impl<'a, A, T> T0<'a, A> for L<T>
   |                ^^^^^^^^^     ^^^^
LL | where
LL |     T: FnMut(A) -> Unit3,
   |                    ----- unsatisfied trait bound introduced here
note: required by a bound in `T1::m`
  --> $DIR/issue-62203-hrtb-ice.rs:27:12
   |
LL |     fn m<'a, B: Ty<'a>, F>(&self, f: F) -> Unit1
   |        - required by a bound in this associated function
LL |     where
LL |         F: for<'r> T0<'r, (<Self as Ty<'r>>::V,), O = <B as Ty<'r>>::V>,
   |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `T1::m`

error: aborting due to 2 previous errors

For more information about this error, try `rustc --explain E0271`.