tests: Improve test runner output in case of target errors
tests: Improve test runner output in case of target errors

Former-commit-id: e49e6e7c42f13b59eb96f86c1d08cadf36f69503
syscoin/syscoin,syscoin/syscoin,syscoin/syscoin,syscoin/syscoin,syscoin/syscoin,syscoin/syscoin,syscoin/syscoin,syscoin/syscoin