/usr/lib/ is in ruby-factory-girl-rails 4.7.0-1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/ruby/
/usr/lib/ruby/vendor_ruby/
/usr/lib/ruby/vendor_ruby/factory_girl_rails/
/usr/lib/ruby/vendor_ruby/factory_girl_rails/generator.rb
/usr/lib/ruby/vendor_ruby/factory_girl_rails/generators/
/usr/lib/ruby/vendor_ruby/factory_girl_rails/generators/non_rspec_generator.rb
/usr/lib/ruby/vendor_ruby/factory_girl_rails/generators/null_generator.rb
/usr/lib/ruby/vendor_ruby/factory_girl_rails/generators/rspec_generator.rb
/usr/lib/ruby/vendor_ruby/factory_girl_rails/railtie.rb
/usr/lib/ruby/vendor_ruby/factory_girl_rails.rb
/usr/lib/ruby/vendor_ruby/generators/
/usr/lib/ruby/vendor_ruby/generators/factory_girl/
/usr/lib/ruby/vendor_ruby/generators/factory_girl/model/
/usr/lib/ruby/vendor_ruby/generators/factory_girl/model/model_generator.rb
/usr/lib/ruby/vendor_ruby/generators/factory_girl.rb