[systemimage] Dec 21 16:41:12 2017 (3195) CheckForUpdate(): checking lock test and acquire
[systemimage] Dec 21 16:41:12 2017 (3195) CheckForUpdate(): checking lock acquired
[systemimage] Dec 21 16:41:12 2017 (3195) Mediator recreated <Mediator at 0xb6314c50 | State at 0xb6314bf0 | Downloader at 0xb6314c30>
[systemimage] Dec 21 16:41:12 2017 (3195) Enter _check_for_update()
[systemimage] Dec 21 16:41:12 2017 (3195) Looking for blacklist: https://system-image.ubports.com/gpg/blacklist.tar.xz
[systemimage] Dec 21 16:41:12 2017 (3195) [0xb6314ff0] Requesting group download:
	https://system-image.ubports.com/gpg/blacklist.tar.xz -> /var/lib/system-image/keyring.tar.xz
	https://system-image.ubports.com/gpg/blacklist.tar.xz.asc -> /var/lib/system-image/keyring.tar.xz.asc

[systemimage] Dec 21 16:41:12 2017 (3195) Allow GSM? No
[systemimage] Dec 21 16:41:12 2017 (3195) [/com/canonical/applications/download/20a60039c4f949ff8cc19121027566ca] Running group download reactor
[systemimage] Dec 21 16:41:12 2017 (3195) self: <UDMDownloadManager at 0xb6314ff0>, self._iface: <Interface <ProxyObject wrapping <dbus._dbus.SystemBus (system) at 0xb58fb870> :1.121 /com/canonical/applications/download/20a60039c4f949ff8cc19121027566ca at 0xb6314d70> implementing 'com.canonical.applications.GroupDownload' at 0xb6314cd0>
[systemimage] Dec 21 16:42:26 2017 (3195) CheckForUpdate(): checking lock test and acquire
[systemimage] Dec 21 16:42:26 2017 (3195) CheckForUpdate(): checking lock not acquired
[systemimage] Dec 21 16:51:12 2017 (3195) [/com/canonical/applications/download/20a60039c4f949ff8cc19121027566ca] Group download reactor done
[systemimage] Dec 21 16:51:12 2017 (3195) check_for_update failed
Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/systemimage/api.py", line 114, in check_for_update
    self._state.run_until('download_files')
  File "/usr/lib/python3/dist-packages/systemimage/state.py", line 179, in run_until
    step()
  File "/usr/lib/python3/dist-packages/systemimage/state.py", line 219, in _get_blacklist_1
    get_keyring('blacklist', url, 'image-master')
  File "/usr/lib/python3/dist-packages/systemimage/keyring.py", line 107, in get_keyring
    (ascxz_src, ascxz_dst),
  File "/usr/lib/python3/dist-packages/systemimage/download.py", line 209, in get_files
    self._get_files(records, pausable, signal_started)
  File "/usr/lib/python3/dist-packages/systemimage/udm.py", line 179, in _get_files
    raise TimeoutError
TimeoutError
[systemimage] Dec 21 16:51:12 2017 (3195) _check_for_update(): checking lock releasing
[systemimage] Dec 21 16:51:12 2017 (3195) _check_for_update(): checking lock released