error[E0080]: referenced constant has errors
  --> $DIR/issue-50814-2.rs:26:5
   |
LL |     const BAR: usize = [5, 6, 7][T::BOO];
   |                        ----------------- index out of bounds: the len is 3 but the index is 42
...
LL |     &<A<T> as Foo<T>>::BAR //~ ERROR erroneous constant used
   |     ^^^^^^^^^^^^^^^^^^^^^^

error[E0080]: erroneous constant used
  --> $DIR/issue-50814-2.rs:26:5
   |
LL |     &<A<T> as Foo<T>>::BAR //~ ERROR erroneous constant used
   |     ^---------------------
   |      |
   |      referenced constant has errors

error: aborting due to 2 previous errors

For more information about this error, try `rustc --explain E0080`.