All of your test runs show an error when trying to run the variations of cpanm --installdeps .: 
! No MYMETA file is found after configure. Your toolchain is too old?

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This is because the Makefile.PL includes the option: 
NO_MYMETA => 1,

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If you remove that option, --installdeps will start working.

In reply to Re: cpanm install test-dependencies by Haarg
in thread cpanm install test-dependencies by szabgab

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