Build failed. https://zuul.opendev.org/t/openstack/buildset/fa170ec5c31c4e0c86d7ff496276e8e4 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/cb550f31c3df4051a16c05dfea66a33b : SUCCESS in 2m 54s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/c0c6468569e6452db9bc4811afe0a3d0 : SUCCESS in 2m 38s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/8076d0939cfa46bf8e24c25768b45fa3 : SUCCESS in 2m 46s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/f6d6d2c4737c4f8588cc5149a39bafe1 : FAILURE in 2m 52s