  DIRECTOR │ Launched worker 0
     PHASE │ run
     START │ ./plan.py
   SUCCESS │ ./plan.py
     START │ mkdir -p sub/
   SUCCESS │ mkdir -p sub/
     START │ mkdir -p exists/
   SUCCESS │ mkdir -p exists/
     START │ touch sub/foo.txt
   SUCCESS │ touch sub/foo.txt
  WORKFLOW │ Dumped to .stepup/workflow.mpk.xz
     PHASE │ watch
  DIRECTOR │ Stopping workers.
  DIRECTOR │ See you!
