Build failed. https://zuul.opendev.org/t/openstack/buildset/e4283dab327a4d44a2cca52a028fa7a4 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/b88e42318ced4abeb7e3740a4870e79a : SUCCESS in 3m 19s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/75f5ab8f39cd4cb9a1f4ee540d008412 : SUCCESS in 3m 20s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/c6f598fe91b0457b8806fda067f9e724 : FAILURE in 3m 08s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/a5e77b018ae449a4a6f9576a1181be16 : FAILURE in 3m 34s