error: unsafe block missing a safety comment
  --> $DIR/auxiliary/ice-7868-aux.rs:2:5
   |
LL |     unsafe { 0 };
   |     ^^^^^^^^^^^^
   |
   = note: `-D clippy::undocumented-unsafe-blocks` implied by `-D warnings`
   = help: consider adding a safety comment on the preceding line

error: aborting due to previous error