   STARTUP │ (Re)initialized boot script
  DIRECTOR │ Launched worker 0
     PHASE │ run
     START │ ./plan.py
   SUCCESS │ ./plan.py
     START │ echo hi > f1.txt
   SUCCESS │ echo hi > f1.txt
     START │ ./work.py
      FAIL │ ./work.py
────────────────────────────────── Step info ───────────────────────────────────
Command               ./work.py
Return code           0
──────────────────────────────── Invalid inputs ────────────────────────────────
Input vanished unexpectedly: f1.txt
────────────────────────────────────────────────────────────────────────────────
     ERROR │ The scheduler has been drained due to unexpected input changes.
   WARNING │ 1 step(s) failed.
   WARNING │ Scheduler is put on hold. Not reporting pending steps.
   WARNING │ Skipping file cleanup due to incomplete build.
   WARNING │ Check logs: .stepup/fail.log .stepup/warning.log
     PHASE │ watch
  DIRECTOR │ Stopping workers.
  DIRECTOR │ See you!
