Function classify_red_each 

pub fn classify_red_each(
    result: &CheckResult,
    wanted: &[String],
) -> Option<Vec<(String, RedClass)>>

The class of each test in wanted from a run’s JUnit report: a test matches by its id or its last :: segments; one the report does not name was not collected. None when the run has no per-test report — then each test is run on its own, by name.