/usr/lib/ruby/ is in ruby-factory-girl 4.2.0-1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/ruby/vendor_ruby/
/usr/lib/ruby/vendor_ruby/factory_girl.rb
/usr/lib/ruby/vendor_ruby/factory_girl/
/usr/lib/ruby/vendor_ruby/factory_girl/aliases.rb
/usr/lib/ruby/vendor_ruby/factory_girl/evaluator.rb
/usr/lib/ruby/vendor_ruby/factory_girl/version.rb
/usr/lib/ruby/vendor_ruby/factory_girl/errors.rb
/usr/lib/ruby/vendor_ruby/factory_girl/syntax_runner.rb
/usr/lib/ruby/vendor_ruby/factory_girl/find_definitions.rb
/usr/lib/ruby/vendor_ruby/factory_girl/evaluation.rb
/usr/lib/ruby/vendor_ruby/factory_girl/attribute_list.rb
/usr/lib/ruby/vendor_ruby/factory_girl/configuration.rb
/usr/lib/ruby/vendor_ruby/factory_girl/decorator.rb
/usr/lib/ruby/vendor_ruby/factory_girl/registry.rb
/usr/lib/ruby/vendor_ruby/factory_girl/reload.rb
/usr/lib/ruby/vendor_ruby/factory_girl/factory.rb
/usr/lib/ruby/vendor_ruby/factory_girl/attribute_assigner.rb
/usr/lib/ruby/vendor_ruby/factory_girl/evaluator_class_definer.rb
/usr/lib/ruby/vendor_ruby/factory_girl/callbacks_observer.rb
/usr/lib/ruby/vendor_ruby/factory_girl/attribute.rb
/usr/lib/ruby/vendor_ruby/factory_girl/strategy/
/usr/lib/ruby/vendor_ruby/factory_girl/strategy/attributes_for.rb
/usr/lib/ruby/vendor_ruby/factory_girl/strategy/build.rb
/usr/lib/ruby/vendor_ruby/factory_girl/strategy/null.rb
/usr/lib/ruby/vendor_ruby/factory_girl/strategy/stub.rb
/usr/lib/ruby/vendor_ruby/factory_girl/strategy/create.rb
/usr/lib/ruby/vendor_ruby/factory_girl/null_factory.rb
/usr/lib/ruby/vendor_ruby/factory_girl/factory_runner.rb
/usr/lib/ruby/vendor_ruby/factory_girl/callback.rb
/usr/lib/ruby/vendor_ruby/factory_girl/attribute/
/usr/lib/ruby/vendor_ruby/factory_girl/attribute/dynamic.rb
/usr/lib/ruby/vendor_ruby/factory_girl/attribute/association.rb
/usr/lib/ruby/vendor_ruby/factory_girl/attribute/static.rb
/usr/lib/ruby/vendor_ruby/factory_girl/attribute/sequence.rb
/usr/lib/ruby/vendor_ruby/factory_girl/decorator/
/usr/lib/ruby/vendor_ruby/factory_girl/decorator/invocation_tracker.rb
/usr/lib/ruby/vendor_ruby/factory_girl/decorator/new_constructor.rb
/usr/lib/ruby/vendor_ruby/factory_girl/decorator/disallows_duplicates_registry.rb
/usr/lib/ruby/vendor_ruby/factory_girl/decorator/class_key_hash.rb
/usr/lib/ruby/vendor_ruby/factory_girl/decorator/attribute_hash.rb
/usr/lib/ruby/vendor_ruby/factory_girl/declaration_list.rb
/usr/lib/ruby/vendor_ruby/factory_girl/null_object.rb
/usr/lib/ruby/vendor_ruby/factory_girl/sequence.rb
/usr/lib/ruby/vendor_ruby/factory_girl/trait.rb
/usr/lib/ruby/vendor_ruby/factory_girl/declaration.rb
/usr/lib/ruby/vendor_ruby/factory_girl/definition_proxy.rb
/usr/lib/ruby/vendor_ruby/factory_girl/strategy_calculator.rb
/usr/lib/ruby/vendor_ruby/factory_girl/syntax.rb
/usr/lib/ruby/vendor_ruby/factory_girl/definition.rb
/usr/lib/ruby/vendor_ruby/factory_girl/definition_hierarchy.rb
/usr/lib/ruby/vendor_ruby/factory_girl/declaration/
/usr/lib/ruby/vendor_ruby/factory_girl/declaration/dynamic.rb
/usr/lib/ruby/vendor_ruby/factory_girl/declaration/implicit.rb
/usr/lib/ruby/vendor_ruby/factory_girl/declaration/association.rb
/usr/lib/ruby/vendor_ruby/factory_girl/declaration/static.rb
/usr/lib/ruby/vendor_ruby/factory_girl/strategy_syntax_method_registrar.rb
/usr/lib/ruby/vendor_ruby/factory_girl/syntax/
/usr/lib/ruby/vendor_ruby/factory_girl/syntax/default.rb
/usr/lib/ruby/vendor_ruby/factory_girl/syntax/methods.rb