Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/b2cccc40083240ca98f9f849e0adc669 : SUCCESS in 9m 52s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/915811e3c59e461abe4b5813ea54320f : FAILURE in 15m 21s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/f0e189e9e2b54ea3bfd58ecf5441b927 : FAILURE in 16m 27s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/1fdd2f693f974021b816e1ae7dc0e467 : SUCCESS in 6m 55s