o conf show_unparsable_versions 

##</code><code>##

Module  < Test::Deep::Methods    (RJBS/Test-Deep-1.205.tar.gz)
Module  = App::Ack::Filter::Collection (PETDANCE/ack-v3.9.0.tar.gz)
Module  = Plack::Handler::HTTP::Server::PSGI (MIYAGAWA/Plack-1.0051.tar.gz)

##</code><code>##

Module  = overload::numbers      (BOOK/perl-5.42.0.tar.gz)

##</code><code>##

$ perl -Moverload::numbers\ 999 -e1
overload::numbers does not define $overload::numbers::VERSION--version check failed.
BEGIN failed--compilation aborted.