  DIRECTOR │ Launched worker 0
     PHASE │ run
     START │ ./plan.py
   SUCCESS │ ./plan.py
     START │ ./plan.py  # wd=sub/
   SUCCESS │ ./plan.py  # wd=sub/
     START │ cp -aT inp1.txt out1.txt  # wd=sub/
   SUCCESS │ cp -aT inp1.txt out1.txt  # wd=sub/
     START │ cp -aT inp2.txt out2.txt  # wd=sub/
   SUCCESS │ cp -aT inp2.txt out2.txt  # wd=sub/
  WORKFLOW │ Dumped to .stepup/workflow.mpk.xz
     PHASE │ watch
  DIRECTOR │ Stopping workers.
  DIRECTOR │ See you!
