Can't generate tar file when using checkbox-snappy-classic.test-runner on arm device

Platform: armv7l
Type: Freescale i.MX6 Quad/DualLite
image: ubuntu server

Description:
Can't upload report to C3 when using checkbox-snappy-classic.test-runner on arm device
Because of no tar file, the test report can't upload to C3

Error logs:
file:///home/ubuntu/.local/share/checkbox-ng/submission_2019-11-21T02.09.00.282201.html
file:///home/ubuntu/.local/share/checkbox-ng/submission_2019-11-21T02.09.00.282201.junit.xml
WARNING:checkbox-ng.launcher.stages:Problem occured when preparing com.canonical.plainbox::tar report:['Expecting value: line 810 column 17 (char 205698)']
file:///home/ubuntu/.local/share/checkbox-ng/submission_2019-11-21T02.09.00.282201.junit.xml

                        Application Malfunction Detected

Traceback (most recent call last):
  File "/snap/checkbox18/current/lib/python3.6/site-packages/guacamole/core.py", line 248, in eat
    return self._dispatch()
  File "/snap/checkbox18/current/lib/python3.6/site-packages/guacamole/core.py", line 298, in _dispatch
    result = ingredient.dispatch(self.context)
  File "/snap/checkbox18/current/lib/python3.6/site-packages/guacamole/ingredients/cmdtree.py", line 152, in dispatch
    return self._dispatch(context, 0)
  File "/snap/checkbox18/current/lib/python3.6/site-packages/guacamole/ingredients/cmdtree.py", line 179, in _dispatch
    return self._dispatch_None(context, level, retval, command)
  File "/snap/checkbox18/current/lib/python3.6/site-packages/guacamole/ingredients/cmdtree.py", line 208, in _dispatch_None
    return self._dispatch(context, level + 1)
  File "/snap/checkbox18/current/lib/python3.6/site-packages/guacamole/ingredients/cmdtree.py", line 165, in _dispatch
    retval = command.invoked(context)
  File "/snap/checkbox18/current/lib/python3.6/site-packages/checkbox_ng/launcher/subcommands.py", line 240, in invoked
    self._export_results()
  File "/snap/checkbox18/current/lib/python3.6/site-packages/checkbox_ng/launcher/stages.py", line 472, in _export_results
    exporter_id, transport)
  File "/snap/checkbox18/current/lib/python3.6/site-packages/plainbox/impl/decorators.py", line 142, in wrapper
    raise exc
  File "/snap/checkbox18/current/lib/python3.6/site-packages/plainbox/impl/decorators.py", line 136, in wrapper
    return func(*args, **kwargs)
  File "/snap/checkbox18/current/lib/python3.6/site-packages/plainbox/impl/session/assistant.py", line 1609, in export_to_transport
    exporter.dump_from_session_manager(self._manager, exported_stream)
  File "/snap/checkbox18/current/lib/python3.6/site-packages/plainbox/impl/exporter/xlsx.py", line 788, in dump_from_session_manager
    self.dump(data, stream)
  File "/snap/checkbox18/current/lib/python3.6/site-packages/plainbox/impl/exporter/xlsx.py", line 798, in dump
    self.write_systeminfo(data)
  File "/snap/checkbox18/current/lib/python3.6/site-packages/plainbox/impl/exporter/xlsx.py", line 332, in write_systeminfo
    hw_info = self._hw_collection(data)
  File "/snap/checkbox18/current/lib/python3.6/site-packages/plainbox/impl/exporter/xlsx.py", line 272, in _hw_collection
    '.1f')) for i in data["resource_map"][resource]]
  File "/snap/checkbox18/current/lib/python3.6/site-packages/plainbox/impl/exporter/xlsx.py", line 272, in <listcomp>
    '.1f')) for i in data["resource_map"][resource]]
KeyError: 'total'

  Please report a bug including the information from the paragraph above. To
  report the bug visit https://bugs.launchpad.net/checkbox-ng/+filebug

  We are sorry for the inconvenience!