   STARTUP │ (Re)initialized boot script
  DIRECTOR │ Launched worker 0
     PHASE │ run
     START │ ./plan.py
   SUCCESS │ ./plan.py
     START │ ./add.py '{"a": 10, "b": 12}' --out=add1_out.json --amend-out
   SUCCESS │ ./add.py '{"a": 10, "b": 12}' --out=add1_out.json --amend-out
     START │ ./add.py '{"a": 8, "b": 90}' --out=add2_out.json --amend-out
   SUCCESS │ ./add.py '{"a": 8, "b": 90}' --out=add2_out.json --amend-out
  DIRECTOR │ Trying to delete 0 outdated output(s).
     PHASE │ watch
  DIRECTOR │ Stopping workers.
  DIRECTOR │ See you!
