Checking if your kit is complete...
Looks good
Writing Makefile for Acme::Steganography::Image::Png
cp Png.pm blib/lib/Acme/Steganography/Image/Png.pm
Manifying blib/man3/Acme::Steganography::Image::Png.3
PERL_DL_NONLAZY=1 /Users/cpanrun/build/5.10.0/bin/perl "-MExtUtils::Command::MM" "-e" "test_harness(1, 'blib/lib', 'blib/arch')" t/*.t
t/grey................ok 1
ok 2 - /Users/cpanrun/build/5.10.0/bin/perl has some contents
ok 3 - Read in /Users/cpanrun/build/5.10.0/bin/perl for testing
ok 4 - Testing Acme::Steganography::Image::Png::FlashingNeonSignGrey
ok 5 - Generated some images

#   Failed test '0.png exists'
not ok 6 - 0.png exists
#   at /Users/cpanrun/depot/main/contrib-patched/perl/CPAN/src/Acme-Steganography-Image-Png/t/Tester.pm line 38.
Can't read '0.png': Could not open 0.png: No such file or directory at /Users/cpanrun/depot/main/contrib-patched/perl/CPAN/src/Acme-Steganography-Image-Png/t/Tester.pm line 41
Use of uninitialized value $payload in unpack at /Users/cpanrun/depot/main/contrib-patched/perl/CPAN/src/Acme-Steganography-Image-Png/blib/lib/Acme/Steganography/Image/Png.pm line 353, <FH> line 1.
Argument "" isn't numeric in numeric eq (==) at /Users/cpanrun/depot/main/contrib-patched/perl/CPAN/src/Acme-Steganography-Image-Png/blib/lib/Acme/Steganography/Image/Png.pm line 354, <FH> line 1.
Use of uninitialized value $datum in unpack at /Users/cpanrun/depot/main/contrib-patched/perl/CPAN/src/Acme-Steganography-Image-Png/blib/lib/Acme/Steganography/Image/Png.pm line 356, <FH> line 1.
Argument "" isn't numeric in sort at /Users/cpanrun/depot/main/contrib-patched/perl/CPAN/src/Acme-Steganography-Image-Png/blib/lib/Acme/Steganography/Image/Png.pm line 362, <FH> line 1.
Use of uninitialized value in join or string at /Users/cpanrun/depot/main/contrib-patched/perl/CPAN/src/Acme-Steganography-Image-Png/blib/lib/Acme/Steganography/Image/Png.pm line 362, <FH> line 1.
Argument "" isn't numeric in substr at /Users/cpanrun/depot/main/contrib-patched/perl/CPAN/src/Acme-Steganography-Image-Png/blib/lib/Acme/Steganography/Image/Png.pm line 363, <FH> line 1.

#   Failed test 'Same length'
#   at /Users/cpanrun/depot/main/contrib-patched/perl/CPAN/src/Acme-Steganography-Image-Png/t/Tester.pm line 43.
not ok 7 - Same length
#          got: '0'
#     expected: '34272'

#   Failed test 'Same contents'
not ok 8 - Same contents
#   at /Users/cpanrun/depot/main/contrib-patched/perl/CPAN/src/Acme-Steganography-Image-Png/t/Tester.pm line 45.
# Looks like you failed 3 tests of 8.
1..8
dubious
	Test returned status 3 (wstat 768, 0x300)
DIED. FAILED tests 6-8
	Failed 3/8 tests, 62.50% okay
t/rgb.................ok 1
ok 2 - /Users/cpanrun/build/5.10.0/bin/perl has some contents
ok 3 - Read in /Users/cpanrun/build/5.10.0/bin/perl for testing
ok 4 - We have our test image '/Users/cpanrun/depot/main/contrib-patched/perl/CPAN/src/Acme-Steganography-Image-Png/t/Elsa'
ok 5 - Testing Acme::Steganography::Image::Png::RGB::556
Undefined subroutine &Acme::Steganography::Image::Png::RGB::croak called at /Users/cpanrun/depot/main/contrib-patched/perl/CPAN/src/Acme-Steganography-Image-Png/blib/lib/Acme/Steganography/Image/Png.pm line 255, <FH> line 1.
1..5
# Looks like your test died just after 5.
dubious
	Test returned status 255 (wstat 65280, 0xff00)
	after all the subtests completed successfully
t/rgb_inline_image....ok 1
ok 2 - /Users/cpanrun/build/5.10.0/bin/perl has some contents
ok 3 - Read in /Users/cpanrun/build/5.10.0/bin/perl for testing
ok 4 - Testing Acme::Steganography::Image::Png::RGB::556
Undefined subroutine &Acme::Steganography::Image::Png::RGB::croak called at /Users/cpanrun/depot/main/contrib-patched/perl/CPAN/src/Acme-Steganography-Image-Png/blib/lib/Acme/Steganography/Image/Png.pm line 263, <DATA> line 1.
1..4
# Looks like your test died just after 4.
dubious
	Test returned status 255 (wstat 65280, 0xff00)
	after all the subtests completed successfully
Failed Test          Stat Wstat Total Fail  List of Failed
-------------------------------------------------------------------------------
t/grey.t                3   768     8    3  6-8
t/rgb.t               255 65280     5    0  ??
t/rgb_inline_image.t  255 65280     4    0  ??
Failed 3/3 test scripts. 3/17 subtests failed.
Files=3, Tests=17,  1 wallclock secs ( 0.52 cusr +  0.17 csys =  0.69 CPU)
Failed 3/3 test programs. 3/17 subtests failed.
make: *** [test_dynamic] Error 255