anchor.diff:      version = "2.200011";
       src = fetchurl {
         url = "mirror://cpan/authors/id/R/RJ/RJBS/Config-MVP-2.200011.tar.gz";
  -      sha256 = "23c95666fc43c4adaebcc093b1b56091efc2a6aa2d75366a216d18eda96ad716";
  +      hash = "sha256-I8lWZvxDxK2uvMCTsbVgke/CpqotdTZqIW0Y7alq1xY=";
       };
       buildInputs = [ TestFatal ];
       propagatedBuildInputs = [ ModulePluggable MooseXOneArgNew RoleHasMessage RoleIdentifiable Throwable TieIxHash ];
  
positive.code:     version = "1.054";
      src = fetchurl {
        url = "mirror://cpan/authors/id/B/BB/BBC/Test-Assertions-1.054.tar.gz";
        sha256 = "10026w4r3yv6k3vc6cby7d61mxddlqh0ls6z39c82f17awfy9p7w";
      };
      propagatedBuildInputs = [ LogTrace ];
      meta = {
  
negative.code:     version = "2.0001";
      src = fetchurl {
        url = "mirror://cpan/authors/id/J/JM/JMASLAK/Net-Netmask-2.0001.tar.gz";
        hash = "sha256-FzVu+GZ/s4xEEKHDzH+kxzVn2/VnS/l/USNtbkiPUXE=";
      };
      buildInputs = [ Test2Suite TestUseAllModules ];
      meta = {
  