error: it is more concise to loop over references to containers instead of using explicit iteration methods
  --> tests/ui/crashes/ice-11230.rs:8:14
   |
LL |     for v in A.iter() {}
   |              ^^^^^^^^ help: to write this more concisely, try: `A`
   |
   = note: `-D clippy::explicit-iter-loop` implied by `-D warnings`
   = help: to override `-D warnings` add `#[allow(clippy::explicit_iter_loop)]`

error: aborting due to 1 previous error