/usr/lib/ is in ruby-gettext-activerecord 2.1.0-4.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/ruby/
/usr/lib/ruby/vendor_ruby/
/usr/lib/ruby/vendor_ruby/gettext_activerecord.rb
/usr/lib/ruby/vendor_ruby/gettext_activerecord/
/usr/lib/ruby/vendor_ruby/gettext_activerecord/i18n.rb
/usr/lib/ruby/vendor_ruby/gettext_activerecord/validations.rb
/usr/lib/ruby/vendor_ruby/gettext_activerecord/parser.rb
/usr/lib/ruby/vendor_ruby/gettext_activerecord/migration.rb
/usr/lib/ruby/vendor_ruby/gettext_activerecord/schema_definitions.rb
/usr/lib/ruby/vendor_ruby/gettext_activerecord/base.rb
/usr/lib/ruby/vendor_ruby/gettext_activerecord/tools.rb
/usr/lib/ruby/vendor_ruby/gettext_activerecord/version.rb