message: Fix duplicate allocation printing.
diff: @@ -411,7 +411,6 @@ impl<'a, 'tcx> Memory<'a, 'tcx> {
  let mut allocs_seen = HashSet::new();
  while let Some(id) = allocs_to_print.pop_front() {
  - allocs_seen.insert(id);
  if id == ZST_ALLOC_ID || id == NEVER_ALLOC_ID { continue; }
  let mut msg = format!("Alloc {:<5} ", format!("{}:", id));
  let prefix_len = msg.len();
  @@ -433,7 +432,7 @@ impl<'a, 'tcx> Memory<'a, 'tcx> {
  for i in 0..(alloc.bytes.len() as u64) {
  if let Some(&target_id) = alloc.relocations.get(&i) {
  - if !allocs_seen.contains(&target_id) {
  + if allocs_seen.insert(target_id) {
  allocs_to_print.push_back(target_id);
  }
  relocations.push((i, target_id));
  