Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/e43b908da6bb45e69d0c5a809372841c : SUCCESS in 6m 43s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/57001f7b44f9469c9b5869e97221a084 : SUCCESS in 7m 19s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/bec1968d1b2f41369e31d210412ec6f4 : FAILURE in 4m 35s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/3cfc33b6001f4d61bf21983cde3e7e69 : FAILURE in 4m 44s