Checking if your kit is complete...
Looks good
Writing Makefile for ExtUtils::Constant
cp lib/ExtUtils/Constant.pm blib\lib\ExtUtils\Constant.pm
cp lib/ExtUtils/Constant/XS.pm blib\lib\ExtUtils\Constant\XS.pm
cp lib/ExtUtils/Constant/Aaargh56Hash.pm blib\lib\ExtUtils\Constant\Aaargh56Hash.pm
cp lib/ExtUtils/Constant/Base.pm blib\lib\ExtUtils\Constant\Base.pm
cp lib/ExtUtils/Constant/Utils.pm blib\lib\ExtUtils\Constant\Utils.pm
	D:\cpanrun\build\5-6-1\bin\perl.exe -Mblib -Id:\cpanrun\build\5-6-1\lib -Id:\cpanrun\build\5-6-1\lib -e "use Test::Harness qw(&runUsing D:/cpanrun/depot/main/contrib-patched/perl/CPAN/src/Ext\Constant..........FAILED tests 27, 29-30, 60, 62-63, 97, 99-100, 169, 171-172, 223, 225-226, 268, 270-271
	Failed 18/272 tests, 93.38% okay
Failed Test  Status Wstat Total Fail  Failed  List of Failed
--------------------------------------------------------------------------------
t\Constant.t	             272   18   6.62%  27, 29-30, 60, 62-63, 97, 99-100,
                                              169, 171-172, 223, 225-226, 268,
                                              270-271
gh at Makefile.PL line 8.
Not in MANIFEST: vc60.pdb
Failed 1/1 test scripts, 0.00% okay. 18/272 subtests failed, 93.38% okay.
NMAKE : fatal error U1077: 'D:\cpanrun\build\5-6-1\bin\perl.exe' : return code '0xff'
Stop.