Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/0e83dc072d1547e7aa7774258a6ab15a : SUCCESS in 8m 10s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/e321000bb870411bbba2211c9775a671 : FAILURE in 7m 59s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/a7522a673dbb4e659d84d8183ccd0ef7 : FAILURE in 7m 03s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/db3a949a042949d9b28c91ec5e575e51 : SUCCESS in 6m 37s