# File lib/cucumber/cli/main.rb, line 45
      def execute!(legacy_step_mother = nil)
        if legacy_step_mother
          warn("Passing a step_mother to #execute! is deprecated, and has been ignored: #{caller[0]}")
        end

        trap_interrupt
        return @drb_output if run_drb_client
        
        runtime = Runtime.new(configuration)
        runtime.run!
        runtime.results.failure?
      rescue ProfilesNotDefinedError, YmlLoadError, ProfileNotFound => e
        @error_stream.puts e.message
        true
      end