cpan[9]> install Test::YAML
Running install for module 'Test::YAML'
Running make for I/IN/INGY/YAML-0.68.tar.gz
  Has already been unwrapped into directory /root/.cpan/build/YAML-0.68-hUwo0h
  Has already been made
Running make test
PERL_DL_NONLAZY=1 /usr/bin/perl5.10.0 "-MExtUtils::Command::MM" "-e" "test_harness(0, 'inc', 'blib/lib', 'blib/arch')" t/*.t
t/2-scalars..........Can't locate YAML/Base.pm in @INC (@INC contains: /root/.cpan/build/YAML-0.68-hUwo0h/inc /root/.cpan/build/YAML-0.68-hUwo0h/blib/lib /root/.cpan/build/YAML-0.68-hUwo0h/blib/arch /usr/lib/perl5/5.10.0/i486-linux-thread-multi /usr/lib/perl5/5.10.0/i486-linux-thread-multi /usr/lib/perl5/5.10.0 /usr/lib/perl5/site_perl/5.10.0/i486-linux-thread-multi /usr/lib/perl5/site_perl/5.10.0/i486-linux-thread-multi /usr/lib/perl5/site_perl/5.10.0 /usr/lib/perl5/site_perl/5.10.0/i486-linux-thread-multi /usr/lib/perl5/site_perl/5.10.0 /usr/lib/perl5/site_perl /usr/lib/perl5/vendor_perl/5.10.0/i486-linux-thread-multi /usr/lib/perl5/vendor_perl/5.10.0/i486-linux-thread-multi /usr/lib/perl5/vendor_perl/5.10.0 /usr/lib/perl5/vendor_perl/5.10.0/i486-linux-thread-multi /usr/lib/perl5/vendor_perl/5.10.0 /usr/lib/perl5/vendor_perl . /usr/lib/perl5/5.10.0/i486-linux-thread-multi /usr/lib/perl5/5.10.0 /usr/lib/perl5/site_perl/5.10.0/i486-linux-thread-multi /usr/lib/perl5/site_perl/5.10.0 /usr/lib/perl5/site_perl /usr/lib/perl5/vendor_perl/5.10.0/i486-linux-thread-multi /usr/lib/perl5/vendor_perl/5.10.0 /usr/lib/perl5/vendor_perl .) at /root/.cpan/build/YAML-0.68-hUwo0h/blib/lib/YAML.pm line 3.
BEGIN failed--compilation aborted at /root/.cpan/build/YAML-0.68-hUwo0h/blib/lib/YAML.pm line 3.
Compilation failed in require at t/2-scalars.t line 5.
# Looks like your test died before it could output anything.