Build failed. https://zuul.opendev.org/t/openstack/buildset/ab8d925da2224f81a913fa117410bdd9 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/ae360e5058b44d20896f05fbb0fc8ab0 : SUCCESS in 3m 20s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/20b05d9e775b46199d29f233e899aaca : SUCCESS in 2m 40s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/d998f24168034bb4ade2944f59af2848 : SUCCESS in 2m 56s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/a14bd273a2be45b79be1259e2aad2b58 : FAILURE in 4m 16s