lock-o-motion failure on parslet

Gemfile

source 'https://rubygems.org'

gem 'colorize'

# RubyMotion unaware gems
group :lotion do
  gem 'parslet'
end

output

$ rake --trace                                                                                                                                           
** Invoke default (first_time)
** Invoke simulator (first_time)
** Invoke build:simulator (first_time)
** Execute build:simulator
rake aborted!
stack level too deep
/Users/doug/.rbenv/versions/1.9.2-p320/lib/ruby/gems/1.9.1/gems/rake-0.9.6/lib/rake/task.rb:170
Tasks: TOP => default => simulator => build:simulator

Rakefile

# -*- coding: utf-8 -*-
ROOT = File.expand_path('..', __FILE__)

$:.unshift("/Library/RubyMotion/lib")
require 'motion/project'
require 'rubygems'
require 'bundler'
Bundler.require

Motion::Project::App.setup do |app|
  # Use `rake config' to see complete project settings.
  app.name = 'parslet_test'
end

begin
  $: << File.join(ROOT, 'vendor/lock-o-motion/lib')
  require 'lock-o-motion'

  $: << File.join(ROOT, 'vendor/MocRuby/lib')
  require 'moc_ruby'

  Lotion.setup
end