nixName => $build->get_column('nixname'),
                system => $build->get_column('system'),
                homepage => $build->get_column('homepage'),
                description => $build->get_column('description'),
                license => $build->get_column('license'),

  metrics = mkDerivation {
    name = "my-build-product";
    builder = "/bin/sh";
    outputs = [ "out" "bin" ];
    args = [
      (
        builtins.toFile "builder.sh" ''
          #! /bin/sh

  metrics = (
    mkDerivation {
      name = "my-build-product";
      builder = "/bin/sh";
      outputs = [ "out" "bin" ];
      args = [
        (
          builtins.toFile "builder.sh" ''
            #! /bin/sh

          echo "$PATH"

            echo "$PATH"

          mkdir $bin
          echo "foo" > $bin/bar

            mkdir $bin
            echo "foo" > $bin/bar

          metrics=$out/nix-support/hydra-metrics
          mkdir -p "$(dirname "$metrics")"
          echo "lineCoverage 18 %" >> "$metrics"
          echo "maxResident 27 KiB" >> "$metrics"
        ''
      )
    ];

            metrics=$out/nix-support/hydra-metrics
            mkdir -p "$(dirname "$metrics")"
            echo "lineCoverage 18 %" >> "$metrics"
            echo "maxResident 27 KiB" >> "$metrics"
          ''
        )
      ];
    }
  ) // {
    meta = {
      license = "GPL";
      description = "An example meta property.";
      homepage = "https://github.com/NixOS/hydra";
    };

    is($dat->{nixName}, "my-build-product", "The nixName matches.");
    is($dat->{system}, $newbuild->system, "The system matches.");

    is($dat->{homepage}, "https://github.com/NixOS/hydra", "The homepage is passed.");
    is($dat->{description}, "An example meta property.", "The description is passed.");
    is($dat->{license}, "GPL", "The license is passed.");