$ uvt-simplestreams-libvirt sync arch=amd64 release=trusty
Traceback (most recent call last):
  File "/usr/bin/uvt-simplestreams-libvirt", line 27, in <module>
    uvtool.libvirt.simplestreams.main()
  File "/usr/lib/python2.7/dist-packages/uvtool/libvirt/simplestreams.py", line 326, in main
    args.func(args)
  File "/usr/lib/python2.7/dist-packages/uvtool/libvirt/simplestreams.py", line 270, in main_sync
    clean_extraneous_images()
  File "/usr/lib/python2.7/dist-packages/uvtool/libvirt/simplestreams.py", line 152, in clean_extraneous_images
    filter_by_dir=IMAGE_DIR)
  File "/usr/lib/python2.7/dist-packages/uvtool/libvirt/__init__.py", line 225, in get_all_domain_volume_names
    volume = conn.storageVolLookupByKey(path)
  File "/usr/lib/python2.7/dist-packages/libvirt.py", line 3996, in storageVolLookupByKey
    if ret is None:raise libvirtError('virStorageVolLookupByKey() failed', conn=self)
libvirt.libvirtError: Storage volume not found: no storage vol with matching key /data/vm/uvtool/libvirt/images/x-uvt-b64-Y29tLnVidW50dS5jbG91ZDpzZXJ2ZXI6MTQuMDQ6YW1kNjQgMjAxNTAyMDkuMQ==