error[E0320]: overflow while adding drop-check rules for FingerTree<i32>
  --> $DIR/dropck_no_diverge_on_nonregular_1.rs:24:9
   |
LL |     let ft = //~ ERROR overflow while adding drop-check rules for FingerTree
   |         ^^
   |
   = note: overflowed on FingerTree<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<i32>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

error[E0320]: overflow while adding drop-check rules for FingerTree<i32>
  --> $DIR/dropck_no_diverge_on_nonregular_1.rs:25:9
   |
LL |         FingerTree::Single(1);
   |         ^^^^^^^^^^^^^^^^^^^^^
   |
   = note: overflowed on FingerTree<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<Node<i32>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

error: aborting due to 2 previous errors

For more information about this error, try `rustc --explain E0320`.