1 files changed, 63 insertions, 0 deletions
diff --git a/src/test/ui/higher-rank-trait-bounds/issue-62203-hrtb-ice.stderr b/src/test/ui/higher-rank-trait-bounds/issue-62203-hrtb-ice.stderr
new file mode 100644
index 000000000..ab5598e36
--- /dev/null
+++ b/src/test/ui/higher-rank-trait-bounds/issue-62203-hrtb-ice.stderr
@@ -0,0 +1,63 @@
+error[E0271]: type mismatch resolving `for<'r> <L<[closure@$DIR/issue-62203-hrtb-ice.rs:42:16: 42:19]> as T0<'r, (&'r u8,)>>::O == <_ as Ty<'r>>::V`
+  --> $DIR/issue-62203-hrtb-ice.rs:39:9
+   |
+LL |       let v = Unit2.m(
+   |                     - required by a bound introduced by this call
+LL | /         L {
+LL | |
+LL | |
+LL | |             f: |x| {
+...  |
+LL | |             },
+LL | |         },
+   | |_________^ type mismatch resolving `for<'r> <L<[closure@$DIR/issue-62203-hrtb-ice.rs:42:16: 42:19]> as T0<'r, (&'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`
+  --> $DIR/issue-62203-hrtb-ice.rs:27:51
+   |
+LL |     fn m<'a, B: Ty<'a>, F>(&self, f: F) -> Unit1
+   |        - required by a bound in this
+LL |     where
+LL |         F: for<'r> T0<'r, (<Self as Ty<'r>>::V,), O = <B as Ty<'r>>::V>,
+   |                                                   ^^^^^^^^^^^^^^^^^^^^ required by this bound in `T1::m`
+
+error[E0271]: expected `[closure@$DIR/issue-62203-hrtb-ice.rs:42:16: 42:19]` to be a closure that returns `Unit3`, but it returns `Unit4`
+  --> $DIR/issue-62203-hrtb-ice.rs:39:9
+   |
+LL |       let v = Unit2.m(
+   |                     - required by a bound introduced by this call
+LL | /         L {
+LL | |
+LL | |
+LL | |             f: |x| {
+...  |
+LL | |             },
+LL | |         },
+   | |_________^ expected struct `Unit3`, found struct `Unit4`
+   |
+note: required for `L<[closure@$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>
+   |                ^^^^^^^^^     ^^^^
+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
+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`.