bound is defined in more than one place

using `map_err` over `inspect_err`

using `map_err` over `inspect_err`

using `map_err` over `inspect_err`

using `map_err` over `inspect_err`

using `map_err` over `inspect_err`

the use of negated comparison operators on partially ordered types produces code that is hard to read and refactor, please consider using the `partial_cmp` method instead, to make it clear that the two values could be incomparable

using `map_err` over `inspect_err`

using `map_err` over `inspect_err`