   STARTUP │ (Re)initialized boot script
  DIRECTOR │ Launched worker 0
     PHASE │ run
     START │ ./plan.py
   SUCCESS │ ./plan.py
     START │ ./work.py case1.txt
      FAIL │ ./work.py case1.txt
────────────────────────────────── Step info ───────────────────────────────────
Command               ./work.py case1.txt
Return code           0
──────────────────────────────── Invalid inputs ────────────────────────────────
Input changed unexpectedly: cases.txt (digest 125bc6a0 ➜ 2863481f)
────────────────────────────────────────────────────────────────────────────────
     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 │ Made 1 step(s) in the queue pending again.
   WARNING │ Check logs: .stepup/fail.log .stepup/warning.log
     PHASE │ watch
   UPDATED │ cases.txt
     PHASE │ run
     START │ ./plan.py
   SUCCESS │ ./plan.py
     START │ ./work.py case3.txt
   SUCCESS │ ./work.py case3.txt
     START │ ./work.py case4.txt
   SUCCESS │ ./work.py case4.txt
  DIRECTOR │ Trying to delete 1 outdated output(s).
     CLEAN │ case1.txt
     PHASE │ watch
  DIRECTOR │ Stopping workers.
  DIRECTOR │ See you!
