failed to checkout kernel repo git://git.cmpxchg.org/linux-mmots.git/master: failed to run ["git" "fetch" "--force" "219d78a6afef9ebb5d1330d6f8386cfd28e10e23" "master"]: exit status 128 fatal: unable to look up git.cmpxchg.org (port 9418) (Name or service not known)