Leaker.js memory leak generator using dbus-native

leaker.js

#!/usr/local/bin/node
var dbus = require('dbus-native');
var memwatch = require('memwatch');

var bus;

bus = dbus.sessionBus({socket: '/var/run/dbus/system_bus_socket'});
bus.connection.on('error',function(err){
  console.log("Error on dbus connection: " +JSON.stringify(err,null,2));
})

function leak() {
  bus.invoke({
    type: dbus.messageType.methodCall,
    path:'/org/freedesktop/DBus',
    destination: 'org.freedesktop.DBus',
    member: "ListNames",
  }, function invokeCallback(err,res){
    if(err) {
      console.log("Error invoking:" + err);
    }
  });
};

memwatch.on('leak', function memwatchLeak(info) { 
  console.log('*********************** LEAK *****:'+JSON.stringify(info));
});

setInterval(leak,10);

Any luck tracking down where the leak is happening?