[ 2014-08-19 13:37:56.2545 21197/7f24042da700 Pool2/Spawner.h:738 ]: [App 32025 stdout]
[ 2014-08-19 13:37:57.0912 21197/7f240403f700 Pool2/Spawner.h:159 ]: [App 32025 stderr] Failed to load feature test for libuser: undefined method `exist?' for Puppet::FileSystem:Module
[ 2014-08-19 13:37:57.2312 21197/7f24042da700 Pool2/Implementation.cpp:849 ]: Could not spawn process for group /etc/puppet/rack#default: An error occured while starting up the preloader.
     in 'void Passenger::ApplicationPool2::SmartSpawner::handleErrorResponse(Passenger::ApplicationPool2::SmartSpawner::StartupDetails&)' (SmartSpawner.h:455)
     in 'std::string Passenger::ApplicationPool2::SmartSpawner::negotiatePreloaderStartup(Passenger::ApplicationPool2::SmartSpawner::StartupDetails&)' (SmartSpawner.h:558)
     in 'void Passenger::ApplicationPool2::SmartSpawner::startPreloader()' (SmartSpawner.h:206)
     in 'virtual Passenger::ApplicationPool2::ProcessPtr Passenger::ApplicationPool2::SmartSpawner::spawn(const Passenger::ApplicationPool2::Options&)' (SmartSpawner.h:744)
     in 'void Passenger::ApplicationPool2::Group::spawnThreadRealMain(const Passenger::ApplicationPool2::SpawnerPtr&, const Passenger::ApplicationPool2::Options&, unsigned int)' (Implementation.cpp:782)

[ 2014-08-19 13:37:57.2313 21197/7f23ebfff700 agents/HelperAgent/RequestHandler.h:1971 ]: [Client 20] Cannot checkout session. An error occured while starting up the preloader.
Error page:
exit (SystemExit)
  /usr/lib/ruby/site_ruby/1.8/puppet/util.rb:525:in `exit'
  /usr/lib/ruby/site_ruby/1.8/puppet/util.rb:525:in `exit_on_fail'
  /usr/lib/ruby/site_ruby/1.8/puppet/application.rb:362:in `run'
  /usr/lib/ruby/site_ruby/1.8/puppet/util/command_line.rb:132:in `run'
  /usr/lib/ruby/site_ruby/1.8/puppet/util/command_line.rb:86:in `execute'
  config.ru:38
  /usr/lib/ruby/gems/1.8/gems/rack-1.1.0/lib/rack/builder.rb:46:in `instance_eval'
  /usr/lib/ruby/gems/1.8/gems/rack-1.1.0/lib/rack/builder.rb:46:in `initialize'
  config.ru:1:in `new'
  config.ru:1

[Tue Aug 19 13:37:57 2014] [error] [client 10.199.206.4] (104)Connection reset by peer: ap_content_length_filter: apr_bucket_read() failed