Build failed. https://zuul.opendev.org/t/openstack/buildset/980a3f4649364eb4ac3ff8e69ac75091 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/f6c3933a356044a898286c1d1d6aae34 : SUCCESS in 3m 19s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/61b0f86268724c9fa2134829642af38c : FAILURE in 2m 47s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/3ee6dc12a416458bb5750a45cd42b03a : SUCCESS in 3m 00s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/95997085de8044ebbac29352d78d6094 : FAILURE in 2m 52s