Build failed. https://zuul.opendev.org/t/openstack/buildset/01efaee0bc0b44fc9a14575dc3b4e7a1 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/8406de1f658f4ec5880ad4cacdb1bf98 : SUCCESS in 3m 53s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/17f5707e147c412ebd37a7a365aa5022 : SUCCESS in 4m 50s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/1f407f826da944068d02043ffdcacaed : SUCCESS in 3m 59s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/fa38e6ddda6248758aa70d11ab7e2993 : FAILURE in 2m 56s