fn partition_adaptively_skipped_mutants(
handler: &mut MutationHandler,
mutants: &[Mutant],
) -> (Vec<Mutant>, Vec<(Mutant, MutationResult)>)fn partition_adaptively_skipped_mutants(
handler: &mut MutationHandler,
mutants: &[Mutant],
) -> (Vec<Mutant>, Vec<(Mutant, MutationResult)>)