def determine_output_hash(crate_root, label):
    """Generates a hash of the crate root file's path.

    Args:
        crate_root (File): The crate's root file (typically `lib.rs`).
        label (Label): The label of the target.

    Returns:
        str: A string representation of the hash.
    """

    # Take the absolute value of hash() since it could be negative.
    h = abs(hash(crate_root.path) + hash(repr(label)))
    return repr(h)