/home/cpanrun/build/5.6.1/bin/perl Build.PL 
Checking whether your kit is complete...
ERROR: perl: Version 5.006001 is installed, but we need version >= 5.008000
ERROR: Data::Dumper: Version 2.102 is installed, but we need version >= 2.121
ERRORS/WARNINGS FOUND IN PREREQUISITES.  You may wish to install the versions
 of the modules indicated above before proceeding with this installation.

Looks good
Creating new 'Build' script for 'haver-client' version '0.06'
/home/cpanrun/build/5.6.1/bin/perl Build
lib/Haver/Client/Commands.pm -> blib/lib/Haver/Client/Commands.pm
lib/Haver/Client.pm -> blib/lib/Haver/Client.pm
lib/Haver/Client/UserList.pm -> blib/lib/Haver/Client/UserList.pm
lib/Haver/Formats/Error.pm -> blib/lib/Haver/Formats/Error.pm
Manifying blib/lib/Haver/Formats/Error.pm -> blib/libdoc/Haver::Formats::Error.3
Manifying blib/lib/Haver/Client.pm -> blib/libdoc/Haver::Client.3
/home/cpanrun/build/5.6.1/bin/perl Build test
t/basic.............ok
All tests successful.
Files=1, Tests=2,  0 wallclock secs ( 0.36 cusr +  0.03 csys =  0.39 CPU)
/home/cpanrun/build/5.6.1/bin/perl Build install
Installing /home/cpanrun/build/5.6.1/lib/site_perl/5.6.1/Haver/Client.pm
Installing /home/cpanrun/build/5.6.1/lib/site_perl/5.6.1/Haver/Formats/Error.pm
Installing /home/cpanrun/build/5.6.1/lib/site_perl/5.6.1/Haver/Client/Commands.pm
Installing /home/cpanrun/build/5.6.1/lib/site_perl/5.6.1/Haver/Client/UserList.pm
Installing /home/cpanrun/build/5.6.1/man/man3/Haver::Formats::Error.3
Installing /home/cpanrun/build/5.6.1/man/man3/Haver::Client.3