mini-dinstall log notice (ERROR)

[Mini-Dinstall]

Failed to do rename (Permission denied); attempting rollback
Traceback (most recent call last):
  File "/home/groups/pkg-java/mini-dinstall", line 915, in _install_changefile_internal
    do_rename(oldname, newname)
  File "/home/groups/pkg-java/mini-dinstall", line 174, in do_rename
    os.rename(source, target)
OSError: [Errno 13] Permission denied