Build failed. https://zuul.opendev.org/t/openstack/buildset/9dbc02065efe4f9b96f55f33822811a9 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/0a2c4e0b18b24a239ba940576c80c38a : SUCCESS in 5m 01s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/c84192e3f67a4916bbe1461ac29a8d21 : FAILURE in 3m 43s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/6338b190451b453bba3f2810877847a6 : SUCCESS in 3m 10s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/cc3562376ecc4c59899edf2fd42b9d9c : SUCCESS in 3m 23s