Build failed. https://zuul.opendev.org/t/openstack/buildset/0abc9f080fac4db1adf8f336b8f68bd1 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/f73fd1a4a7ea40f9870a0266a8ac62c6 : SUCCESS in 2m 55s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/34337ee3d73949fe868efa27dae875ed : SUCCESS in 2m 20s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/7d5408b1a21941f7b25982f730092134 : SUCCESS in 2m 50s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/af0b6d25c74e4814b22022710af826f6 : FAILURE in 2m 42s