  DIRECTOR │ Listening on /tmp/stepup-########/director
  DIRECTOR │ Launched worker 0
     PHASE │ run
     START │ ./plan.py
   SUCCESS │ ./plan.py
     START │ ./expensive.py
   SUCCESS │ ./expensive.py
     START │ cat average.txt
   SUCCESS │ cat average.txt
─────────────────────────────── Standard output ────────────────────────────────
2.580000
────────────────────────────────────────────────────────────────────────────────
  WORKFLOW │ Dumped to .stepup/workflow.mpk.xz
     PHASE │ watch
  DIRECTOR │ Stopping workers.
  DIRECTOR │ See you!
