Pushing to list in Node.js and running out of memory

I am pushing functions onto a list to be called later:

var insertFunctions = [];

 insertFunctions.push(function(callback){
                    newPlayer.save(function (err, result) {
                        if (err) {
                            console.log("error in player save method:", err);
                            callback(err);
                            return;
                        }
                      callback(null,result);
                    });
                });

but I am pushing so many of these I think I am blowing up memory. What's the best way to get around this?

I get Node.js exit code 3, which at this point, means blowing memory to me.