Build failed. https://zuul.opendev.org/t/openstack/buildset/e0f326e7bff34f6d8b781d730e699ea2 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/bd2c25f634494a2282901cfd601de766 : SUCCESS in 4m 27s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/2fbcfd27e0dd4bccbe01f40e77bf6e77 : FAILURE in 3m 18s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/f68a31bf4dc9420589dfced235777115 : SUCCESS in 3m 54s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/75c14d618ea241e0b2cd1573de47a6c7 : FAILURE in 3m 32s