Parse Cloud Code - function param is undefined in function

Parse.Cloud.job("getWP8Apps", function(request, response)
{
  console.log("********************************************");
  Parse.Cloud.useMasterKey();
  console.log("useMasterKey");
  var query = new Parse.Query("developer");
  console.log("Parse.Query(\"developer\")");
  query.each(function(developer)
  {
    console.log("query.each(function(developer))");
    Parse.Cloud.httpRequest(
    {
      url: 'http://zunderstorehost.azurewebsites.net/api/WP8StoreAppList/Publisher/' + developer.get("publisherName"),
      success: function(httpResponse)
      {
        console.log("Parse.Cloud.httpRequest.success");
        var apps = httpResponse.data;
        for(i=0; i<apps.length; i++)
        {
          var app = apps[i];
          console.log("Parse.Query(\"application\")");
          var query2 = new Parse.Query("application");
          console.log("quey2.equalTo(\"Guid\", " + app.Guid + ")");
          query2.equalTo("Guid", app.Guid);
          query2.first(
          {
                                        // app passed to function
            success: function(results, app)
            {
              console.log("quey2.first.success");
                                        // app is undefined when used
              if(results.toJSON() != app)
              {
                console.log("result != " + app);
                // save changes
              }else{
                var application = Parse.Object.extend("application");
                var newApp = new application();
                newApp.set("Categories", app.Categories);
                newApp.set("Guid", app.Guid);
                newApp.set("HasLiveTile", app.HasLiveTile);
                newApp.set("Icon", app.Icon);
                newApp.set("Name", app.Name);
                newApp.set("Offers", app.Offers);
                newApp.set("Publisher", app.Publisher);
                newApp.set("PublisherId", app.PublisherId);
                newApp.set("Rating", app.Rating);
                newApp.set("RatingCount", app.RatingCount);
                newApp.set("ReleaseDate", app.ReleaseDate);
                newApp.set("Version", app.Version);
                newApp.set("Tags", app.Tags);
                newApp.save();
              }
            }, // end of query2.first.success
            error: function()
            {
              console.log("quey2.first.error");
              // handling query2.first.error
            } // end of query2.first.error
          }); // end of query2.first
        } // end of for loop
      }, // end of httpRequest.success
      error: function()
      {
        // handling httpRequest.error
      } // end of httpRequest.error
    }); // end of httpRequest
  }); // end of query.each
  console.log("********************************************");
}); // end of Parse.define.job