/home/cpanrun/build/5.6.1/bin/perl Build.PL 
Creating custom builder _build/lib/MyModuleBuilder.pm in _build/lib
Checking whether your kit is complete...
ERROR: LWP::Protocol: Version 1.39 is installed, but we need version >= 1.42
ERROR: Carp: Couldn't find a $VERSION in prerequisite '/home/cpanrun/build/5.6.1/lib/5.6.1/Carp.pm'
ERRORS/WARNINGS FOUND IN PREREQUISITES.  You may wish to install the versions
 of the modules indicated above before proceeding with this installation.

Can't locate object method "build_elements" via package "MyModuleBuilder" (perhaps you forgot to load "MyModuleBuilder"?) at Build.PL line 35.
Looks good
Couldn't run Build.PL:  at /home/cpanrun/build/5.6.1/lib/site_perl/5.6.1/Module/Build/Compat.pm line 118.