Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/1036237b7b3c48ec87d59753fc77be72 : SUCCESS in 4m 32s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/5149da6e2a5c432c93f3fe145a5be0e5 : SUCCESS in 7m 54s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/74e579685b7349899503fbc3d8a2c9b9 : FAILURE in 5m 34s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/fe4315f566154d78b5072329a6e6f043 : FAILURE in 4m 44s