handle missing file in final cleanup more gracefully
handle missing file in final cleanup more gracefully

o2r-project/o2r-muncher,nuest/o2r-muncher,nuest/o2r-muncher,o2r-project/o2r-muncher,nuest/o2r-muncher,nuest/o2r-muncher,o2r-project/o2r-muncher,o2r-project/o2r-muncher,nuest/o2r-muncher,o2r-project/o2r-muncher