Testing T ... in_args = 0, returned = 0, others = 0
wall time = 2

Testing T -> U ... in_args = 0, returned = 0, others = 0
wall time = 1

Testing grep ... in_args = 0, returned = 0, others = 0
wall time = 1

Testing regex::regex ... in_args = 0, returned = 0, others = 0
wall time = 0