   STARTUP │ (Re)initialized boot script
  DIRECTOR │ Launched worker 0
     PHASE │ run
     START │ ./plan.py
   SUCCESS │ ./plan.py
─────────────────────────────── Standard output ────────────────────────────────
sub
────────────────────────────────────────────────────────────────────────────────
     START │ ./plan.py  # wd=sub/
   SUCCESS │ ./plan.py  # wd=sub/
─────────────────────────────── Standard output ────────────────────────────────
.
foo.txt
────────────────────────────────────────────────────────────────────────────────
  DIRECTOR │ Trying to delete 0 outdated output(s).
     PHASE │ watch
  DIRECTOR │ Stopping workers.
  DIRECTOR │ See you!
