Build failed. https://zuul.opendev.org/t/openstack/buildset/f8437d78b66043cab3cfd3203ca683f7 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/7da0b4fb46404d17a5c16a66281c8e28 : SUCCESS in 3m 01s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/0bc73841763345e590aae1bc267c84c0 : FAILURE in 2m 44s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/8566d1ff7b8c41dbb48fc81f55661889 : SUCCESS in 2m 32s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/c4115fed65304e219b1f0fe5ea849917 : FAILURE in 2m 54s