disallowed-fields = [
    # just a string is shorthand for path only
    "std::ops::Range::start",
    # can give path and reason with an inline table
    { path = "std::ops::Range::end", reason = "no end allowed" },
    # can use an inline table but omit reason
    { path = "std::ops::RangeTo::end" },
    # local paths
    "conf_disallowed_fields::X::y",
    # re-exports
    "conf_disallowed_fields::Y::y",
    # field of a variant
    "conf_disallowed_fields::Z::B::x",
]
