/* handle deprecated store specification */
    if (hydraConfig["store_mode"] != "")
        throw Error("store_mode in hydra.conf is deprecated, please use store_uri");
    if (hydraConfig["binary_cache_dir"] != "")
        printMsg(lvlError, "hydra.conf: binary_cache_dir is deprecated and ignored. use store_uri=file:// instead");
    if (hydraConfig["binary_cache_s3_bucket"] != "")
        printMsg(lvlError, "hydra.conf: binary_cache_s3_bucket is deprecated and ignored. use store_uri=s3:// instead");
    if (hydraConfig["binary_cache_secret_key_file"] != "")
        printMsg(lvlError, "hydra.conf: binary_cache_secret_key_file is deprecated and ignored. use store_uri=...?secret-key= instead");