perform

# File railties/lib/rails/commands/rake/rake_command.rb, line 15
        def perform(task, args, config)
          require_rake

          Rake.with_application do |rake|
            rake.init("rails", [task, *args])
            rake.load_rakefile
            if Rails.respond_to?(:root)
              rake.options.suppress_backtrace_pattern = /\A(?!#{Regexp.quote(Rails.root.to_s)})/
            end
            rake.standard_exception_handling { rake.top_level }
          end
        end