class ParallelTests::Cucumber::FailuresLogger

def initialize(config)
  super
  @io = prepare_io(config.out_stream)
  # Remove handler inherited from Cucumber::Formatter::Rerun that does not
  # properly join file failures
  handlers = config.event_bus.instance_variable_get(:@handlers)
  handlers[::Cucumber::Events::TestRunFinished.to_s].pop
  # Add our own handler
  config.on_event :test_run_finished do
    next if @failures.empty?
    lock_output do
      @failures.each do |file, lines|
        lines.each do |line|
          @io.print "#{file}:#{line} "
        end
      end
    end
  end
end