Feeding report back for focusing on failed test-cases

It would be nice to have built-in option for feeding json-report back into loop and use it as natural data source for focusing on failed test-cases. (Probably it's already there but I don't see anything similar)

Unlike to "go test" caching this will work explicitly for the end user.

Generally, there's a lot useful features which could be implemented in testing suites if core framework could provide standard way to fetch previous results.