[Openstack-stable-maint] Stable check of openstack/nova for ref refs/heads/stable/train failed

Build failed. https://zuul.opendev.org/t/openstack/buildset/095fe494319f4f4ba4d378d2bd7d0f... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/40d7391b2a124d5eb32649a99a589efe : SUCCESS in 8m 48s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/d246a95ad706430f862f1aa993ecf53f : SUCCESS in 28m 44s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/09c7fe4ae3d64db389083de53d91fd80 : POST_FAILURE in 29m 47s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/369e38c22e1c44b1b11d5639da54a34c : SUCCESS in 26m 17s