error[E0261]: use of undeclared lifetime name `'b`
  --> $DIR/nested-rpit-hrtb.rs:54:77
   |
LL | fn two_htrb_outlives() -> impl for<'a> Foo<'a, Assoc = impl for<'b> Sized + 'b> {}
   |                                                                             ^^ undeclared lifetime
   |
   = note: for more information on higher-ranked polymorphism, visit https://doc.rust-lang.org/nomicon/hrtb.html
help: consider making the bound lifetime-generic with a new `'b` lifetime
   |
LL | fn two_htrb_outlives() -> impl for<'b, 'a> Foo<'a, Assoc = impl for<'b> Sized + 'b> {}
   |                                    +++
help: consider introducing lifetime `'b` here
   |
LL | fn two_htrb_outlives<'b>() -> impl for<'a> Foo<'a, Assoc = impl for<'b> Sized + 'b> {}
   |                     ++++

error[E0261]: use of undeclared lifetime name `'b`
  --> $DIR/nested-rpit-hrtb.rs:61:82
   |
LL | fn two_htrb_outlives_uses() -> impl for<'a> Bar<'a, Assoc = impl for<'b> Sized + 'b> {}
   |                                                                                  ^^ undeclared lifetime
   |
help: consider making the bound lifetime-generic with a new `'b` lifetime
   |
LL | fn two_htrb_outlives_uses() -> impl for<'b, 'a> Bar<'a, Assoc = impl for<'b> Sized + 'b> {}
   |                                         +++
help: consider introducing lifetime `'b` here
   |
LL | fn two_htrb_outlives_uses<'b>() -> impl for<'a> Bar<'a, Assoc = impl for<'b> Sized + 'b> {}
   |                          ++++

error: higher kinded lifetime bounds on nested opaque types are not supported yet
  --> $DIR/nested-rpit-hrtb.rs:25:69
   |
LL | fn one_hrtb_outlives() -> impl for<'a> Foo<'a, Assoc = impl Sized + 'a> {}
   |                                                                     ^^
   |
note: lifetime declared here
  --> $DIR/nested-rpit-hrtb.rs:25:36
   |
LL | fn one_hrtb_outlives() -> impl for<'a> Foo<'a, Assoc = impl Sized + 'a> {}
   |                                    ^^

error: higher kinded lifetime bounds on nested opaque types are not supported yet
  --> $DIR/nested-rpit-hrtb.rs:29:68
   |
LL | fn one_hrtb_trait_param() -> impl for<'a> Foo<'a, Assoc = impl Qux<'a>> {}
   |                                                                    ^^
   |
note: lifetime declared here
  --> $DIR/nested-rpit-hrtb.rs:29:39
   |
LL | fn one_hrtb_trait_param() -> impl for<'a> Foo<'a, Assoc = impl Qux<'a>> {}
   |                                       ^^

error: higher kinded lifetime bounds on nested opaque types are not supported yet
  --> $DIR/nested-rpit-hrtb.rs:32:74
   |
LL | fn one_hrtb_outlives_uses() -> impl for<'a> Bar<'a, Assoc = impl Sized + 'a> {}
   |                                                                          ^^
   |
note: lifetime declared here
  --> $DIR/nested-rpit-hrtb.rs:32:41
   |
LL | fn one_hrtb_outlives_uses() -> impl for<'a> Bar<'a, Assoc = impl Sized + 'a> {}
   |                                         ^^

error: higher kinded lifetime bounds on nested opaque types are not supported yet
  --> $DIR/nested-rpit-hrtb.rs:35:73
   |
LL | fn one_hrtb_trait_param_uses() -> impl for<'a> Bar<'a, Assoc = impl Qux<'a>> {}
   |                                                                         ^^
   |
note: lifetime declared here
  --> $DIR/nested-rpit-hrtb.rs:35:44
   |
LL | fn one_hrtb_trait_param_uses() -> impl for<'a> Bar<'a, Assoc = impl Qux<'a>> {}
   |                                            ^^

error: aborting due to 6 previous errors

For more information about this error, try `rustc --explain E0261`.