HTTP GET requests to /statistics/snapshot.json crash the slave

GIT SHA: 3758114ee4492dcbb784d5aac65d43ac54ddb439
The first 5 GET requests succeeded, but then the slave was crashed:

F0303 14:44:14.829720 52109312 statistics.cpp:362] Check failed: statistics[context][name].values.size() > 0

• • • Check failure stack trace: ***
      @ 0x10242449a google::LogMessage::Flush()
      @ 0x102425aa1 google::LogMessageFatal::~LogMessageFatal()
      @ 0x10233576c process::StatisticsProcess::snapshot()
      @ 0x10234239d std::tr1::_Mem_fn<>::operator()()
      @ 0x102349650 std::tr1::_Bind<>::operator()<>()
      @ 0x1023496a2 std::tr1::_Function_handler<>::_M_invoke()
      @ 0x1022f7629 std::tr1::function<>::operator()()
      @ 0x1022777a8 process::ProcessBase::visit()
      @ 0x10229ec2d process::HttpEvent::visit()
      @ 0x10228a6b0 process::ProcessManager::resume()
      @ 0x10228b6f6 process::schedule()
      @ 0x7fff887fe8bf _pthread_start
      @ 0x7fff88801b75 thread_start
      bin/mesos-slave.sh: line 24: 70166 Abort trap: 6 /Users/florian/airbnb_code/mesos/build/src/mesos-slave "${@}"