$ mix dextrin.conformance REQUEST ANSWER
This implementation's adapter for the Dextrin Conformance Suite: reads
the JSON request at REQUEST, answers every case
(Dextrin.Conformance), and writes the JSON answer to ANSWER.
Exits non-zero only when the adapter itself cannot work — no request file, a request that is not JSON — never because a case failed: a failed case is an answer, and the suite judges it.