root@hassio:~# docker logs resin_supervisor
Traceback (most recent call last):
  File "/usr/lib/python3.6/runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "/usr/lib/python3.6/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/usr/lib/python3.6/site-packages/hassio/__main__.py", line 7, in <module>
    import hassio.bootstrap as bootstrap
  File "/usr/lib/python3.6/site-packages/hassio/bootstrap.py", line 10, in <module>
    from .core import HassIO
  File "/usr/lib/python3.6/site-packages/hassio/core.py", line 6, in <module>
    from .coresys import CoreSysAttributes
  File "/usr/lib/python3.6/site-packages/hassio/coresys.py", line 3, in <module>
    import aiohttp
  File "/usr/lib/python3.6/site-packages/aiohttp/__init__.py", line 6, in <module>
    from .client import *  # noqa
  File "/usr/lib/python3.6/site-packages/aiohttp/client.py", line 14, in <module>
    from yarl import URL
ValueError: source code string cannot contain null bytes