Build failed. https://zuul.opendev.org/t/openstack/buildset/09896e75f0634e7dbf9a978291b92ad7 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/b2f732dc7f354164a9e0a661e0758ab2 : SUCCESS in 3m 42s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/7d79f7f390df45be8b54812a846ef4fd : FAILURE in 3m 34s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/2ae9d7bdc49e468a813af31290b3f48c : SUCCESS in 2m 35s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/d294366bea7445d5ba2c45f21c22c294 : FAILURE in 2m 52s