   STARTUP │ (Re)initialized boot script
  DIRECTOR │ Launched worker 0
     PHASE │ run
     START │ ./plan.py
   SUCCESS │ ./plan.py
     START │ ./add.py --inp=add_inp.json --out=add_out.json --amend-out
   SUCCESS │ ./add.py --inp=add_inp.json --out=add_out.json --amend-out
     START │ ./square.py --inp=add_out.json --out=square_out.json --amend-out
   SUCCESS │ ./square.py --inp=add_out.json --out=square_out.json --amend-out
  DIRECTOR │ Trying to delete 0 outdated output(s).
     PHASE │ watch
  DIRECTOR │ Stopping workers.
  DIRECTOR │ See you!
