Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/cfcb18a899234a9f8ebc813f566b3939 : SUCCESS in 4m 29s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/426befd8dc1e480e93eb221169017090 : FAILURE in 3m 12s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/1946e39bea8e471698766aeaff951b91 : SUCCESS in 6m 08s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/f48be6eca9f7415ba8fb626088ebb71d : SUCCESS in 7m 04s