anchor.diff:      };
       version = "0.6.3";
     };
  +  rainbow = {
  +    dependencies = ["rake"];
  +    source = {
  +      remotes = ["https://rubygems.org"];
  +      sha256 = "08w2ghc5nv0kcq5b257h7dwjzjz1pqcavajfdx2xjyxqsvh2y34w";
  +      type = "gem";
  +    };
  +    version = "2.2.2";
  +  };
     rake = {
       source = {
         remotes = ["https://rubygems.org"];
  
positive.code:       type = "gem";
      };
      version = "1.2.1";
    };
    selenium-webdriver = {
      dependencies = ["childprocess" "rubyzip" "websocket"];
  
negative.code:     };
      version = "2.15.0";
    };
    parser = {
      dependencies = ["ast"];
      source = {
        remotes = ["https://rubygems.org"];
        sha256 = "1sj8dlqs5l2pa5y2412r4d5fi7qvf26n8vpciz7k9fy0ch327gdc";
        type = "gem";
      };
      version = "2.5.0.5";
    };
    phantomjs = {
      source = {
        remotes = ["https://rubygems.org"];
  