=== remove the ballast ===
  avail: 949296586752
  ballast files left: 0

=== step 5: the SAME destructive restore, now with space. It must WORK. ===
before: calibre-web Up 9 minutes (healthy)
--- log ---
auth: valid session for POST /backup/offbox/reconstitute
ServeHTTP: POST /backup/offbox/reconstitute from 172.18.0.4:56072
reconstituted calibre-web from snapshot ece64c87: 0 file(s) placed, 1 volume(s) replayed, 0 DB dump(s) replayed, safety dump=., skewed=false
off-box reconstitute calibre-web completed (async): files=0 dbs=0 snapshot=ece64c87
--- app after ---
after: calibre-web Up 37 seconds (healthy)
--- userdata ---
  files: 22
  TREE fingerprint: 5a9b2db75dfd4ba4131adb3255670472
  (was 5a9b2db75dfd4ba4131adb3255670472 before the drill)
