something is making my docker img really big? Is there way to find culprit?     root@BracServUltra:~# ls -la /mnt/user total 4 drwxrwxrwx 1 nobody users 195 Sep 21 17:37 ./ drwxr-xr-x 20 root root 400 Sep 21 17:27 ../ drwx------ 1 nobody users 43 Sep 5 16:13 .Trash-99/ drwxrwxrwx 1 nobody users 6 Aug 31 01:01 Backup/ drwxrwxrwx 1 nobody users 128 Sep 20 03:55 BracServ/ drwxrwxrwx 1 nobody users 116 Sep 21 09:31 BracServSSD/ drwxrwxrwx 1 nobody users 67 May 24 2