check

# File railties/lib/rails/zeitwerk_checker.rb, line 5
  def self.check
    Zeitwerk::Loader.eager_load_all

    autoloaded = ActiveSupport::Dependencies.autoload_paths + ActiveSupport::Dependencies.autoload_once_paths
    eager_loaded = ActiveSupport::Dependencies._eager_load_paths.to_a

    unchecked = autoloaded - eager_loaded
    unchecked.select! { |dir| Dir.exist?(dir) && !Dir.empty?(dir)  }
    unchecked
  end