$ ./miniperl -I ~/g/gist-607990 -l ~/g/gist-607990/phase.pl
use       -> Module    -> BEGIN     -> START
use       -> Module    -> UNITCHECK -> START
phase.pl  -> main      -> BEGIN     -> START
phase.pl  -> main      -> UNITCHECK -> START
phase.pl  -> main      -> CHECK     -> CHECK
phase.pl  -> Module    -> CHECK     -> CHECK
phase.pl  -> Module    -> INIT      -> INIT
phase.pl  -> main      -> INIT      -> INIT
require   -> Module    -> BEGIN     -> RUN
require   -> Module    -> UNITCHECK -> RUN
require   -> Module    -> END       -> END
require   -> main      -> END       -> END
require   -> Module    -> END       -> END