Build failed. https://zuul.opendev.org/t/openstack/buildset/e9bde21ad6d641b2920982364744f42d - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/594de105ea1e4b11907d576102c03d82 : SUCCESS in 3m 40s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/bca79f8bacfe4da7a4d7715d8a7ca97b : FAILURE in 3m 24s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/c85bc05a1d8149449015736034f074f4 : SUCCESS in 3m 14s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/dc8adc35664749d48b89a12e19dd51b2 : SUCCESS in 3m 49s