class ParallelTests::Cucumber::FailuresLogger

def done
  return if @failures.empty?
  lock_output do
    @failures.each do |file, lines|
      lines.each do |line|
        @io.print "#{file}:#{line} "
      end
    end
  end
end

def initialize(runtime, path_or_io, options)
  super
  @io = prepare_io(path_or_io)
end