Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/gi/overrides/GLib.py", line 634, in <lambda>
    return (lambda data: callback(*data), user_data)
  File "/usr/share/unity-scopes/shotwell/unity_shotwell_daemon.py", line 181, in update_results_model
    for i in self.shotwell(search, date, limit):
  File "/usr/share/unity-scopes/shotwell/unity_shotwell_daemon.py", line 342, in shotwell
    db = self.getDB ()
  File "/usr/share/unity-scopes/shotwell/unity_shotwell_daemon.py", line 440, in getDB
    shutil.copy2(shotwell_db, CACHE+"/photos.db")
  File "/usr/lib/python3.3/shutil.py", line 243, in copy2
    copyfile(src, dst, follow_symlinks=follow_symlinks)
  File "/usr/lib/python3.3/shutil.py", line 110, in copyfile
    with open(dst, 'wb') as fdst:
PermissionError: [Errno 13] Permission denied: '/home/username/.cache/unity-lens-photos/photos.db'