func verifyChecksum(sclnt *minio.Client, srcSha256, tgtSha256 hash.Hash, srcCtnt, tgtCtnt minio.ObjectInfo) (allgood bool) {
	opts := minio.GetObjectOptions{}
	if srcCtnt.Size != tgtCtnt.Size {
		fmt.Printf("differ in size sourceSize: %d, targetSize: %d\n", srcCtnt.Size, tgtCtnt.Size)
		return false
	} else if srcCtnt.ContentType != tgtCtnt.ContentType {
		fmt.Printf("differ in contentType source: %s, target: %s\n", srcCtnt.ContentType, tgtCtnt.ContentType)