Build failed. https://zuul.opendev.org/t/openstack/buildset/f010ea0f2bed4fb58aed5cc1fdcfb77b - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/9ba93a74a68246b28557fe02455354e6 : SUCCESS in 5m 09s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/cafd784ee20a4194b3dae77ef50ac9c2 : SUCCESS in 5m 04s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/c4e45295fa99439cb9a1842a1447265b : SUCCESS in 5m 28s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/de0a92c93c284082b6bcb247c8439361 : FAILURE in 4m 02s