/usr/lib/ruby/vendor_ruby/ is in ruby-state-machine 1.2.0-2.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/ruby/vendor_ruby/state_machine/
/usr/lib/ruby/vendor_ruby/state_machine/machine.rb
/usr/lib/ruby/vendor_ruby/state_machine/extensions.rb
/usr/lib/ruby/vendor_ruby/state_machine/integrations/
/usr/lib/ruby/vendor_ruby/state_machine/integrations/active_record.rb
/usr/lib/ruby/vendor_ruby/state_machine/integrations/base.rb
/usr/lib/ruby/vendor_ruby/state_machine/integrations/active_model.rb
/usr/lib/ruby/vendor_ruby/state_machine/integrations/active_record/
/usr/lib/ruby/vendor_ruby/state_machine/integrations/active_record/versions.rb
/usr/lib/ruby/vendor_ruby/state_machine/integrations/active_record/locale.rb
/usr/lib/ruby/vendor_ruby/state_machine/integrations/sequel.rb
/usr/lib/ruby/vendor_ruby/state_machine/integrations/sequel/
/usr/lib/ruby/vendor_ruby/state_machine/integrations/sequel/versions.rb
/usr/lib/ruby/vendor_ruby/state_machine/integrations/active_model/
/usr/lib/ruby/vendor_ruby/state_machine/integrations/active_model/versions.rb
/usr/lib/ruby/vendor_ruby/state_machine/integrations/active_model/locale.rb
/usr/lib/ruby/vendor_ruby/state_machine/integrations/active_model/observer_update.rb
/usr/lib/ruby/vendor_ruby/state_machine/integrations/active_model/observer.rb
/usr/lib/ruby/vendor_ruby/state_machine/assertions.rb
/usr/lib/ruby/vendor_ruby/state_machine/node_collection.rb
/usr/lib/ruby/vendor_ruby/state_machine/event_collection.rb
/usr/lib/ruby/vendor_ruby/state_machine/yard.rb
/usr/lib/ruby/vendor_ruby/state_machine/transition.rb
/usr/lib/ruby/vendor_ruby/state_machine/graph.rb
/usr/lib/ruby/vendor_ruby/state_machine/integrations.rb
/usr/lib/ruby/vendor_ruby/state_machine/version.rb
/usr/lib/ruby/vendor_ruby/state_machine/matcher_helpers.rb
/usr/lib/ruby/vendor_ruby/state_machine/matcher.rb
/usr/lib/ruby/vendor_ruby/state_machine/initializers/
/usr/lib/ruby/vendor_ruby/state_machine/initializers/rails.rb
/usr/lib/ruby/vendor_ruby/state_machine/initializers/merb.rb
/usr/lib/ruby/vendor_ruby/state_machine/state_context.rb
/usr/lib/ruby/vendor_ruby/state_machine/branch.rb
/usr/lib/ruby/vendor_ruby/state_machine/transition_collection.rb
/usr/lib/ruby/vendor_ruby/state_machine/state.rb
/usr/lib/ruby/vendor_ruby/state_machine/machine_collection.rb
/usr/lib/ruby/vendor_ruby/state_machine/event.rb
/usr/lib/ruby/vendor_ruby/state_machine/macro_methods.rb
/usr/lib/ruby/vendor_ruby/state_machine/path_collection.rb
/usr/lib/ruby/vendor_ruby/state_machine/initializers.rb
/usr/lib/ruby/vendor_ruby/state_machine/yard/
/usr/lib/ruby/vendor_ruby/state_machine/yard/templates/
/usr/lib/ruby/vendor_ruby/state_machine/yard/templates/default/
/usr/lib/ruby/vendor_ruby/state_machine/yard/templates/default/class/
/usr/lib/ruby/vendor_ruby/state_machine/yard/templates/default/class/html/
/usr/lib/ruby/vendor_ruby/state_machine/yard/templates/default/class/html/setup.rb
/usr/lib/ruby/vendor_ruby/state_machine/yard/templates/default/class/html/state_machines.erb
/usr/lib/ruby/vendor_ruby/state_machine/yard/handlers/
/usr/lib/ruby/vendor_ruby/state_machine/yard/handlers/machine.rb
/usr/lib/ruby/vendor_ruby/state_machine/core_ext.rb
/usr/lib/ruby/vendor_ruby/state_machine/yard/handlers/base.rb
/usr/lib/ruby/vendor_ruby/state_machine/yard/handlers/transition.rb
/usr/lib/ruby/vendor_ruby/state_machine/yard/handlers/state.rb
/usr/lib/ruby/vendor_ruby/state_machine/yard/handlers/event.rb
/usr/lib/ruby/vendor_ruby/state_machine/yard/templates.rb
/usr/lib/ruby/vendor_ruby/state_machine/yard/handlers.rb
/usr/lib/ruby/vendor_ruby/state_machine/eval_helpers.rb
/usr/lib/ruby/vendor_ruby/state_machine/error.rb
/usr/lib/ruby/vendor_ruby/state_machine/core_ext/
/usr/lib/ruby/vendor_ruby/state_machine/core_ext/class/
/usr/lib/ruby/vendor_ruby/state_machine/core_ext/class/state_machine.rb
/usr/lib/ruby/vendor_ruby/state_machine/callback.rb
/usr/lib/ruby/vendor_ruby/state_machine/helper_module.rb
/usr/lib/ruby/vendor_ruby/state_machine/core.rb
/usr/lib/ruby/vendor_ruby/state_machine/state_collection.rb
/usr/lib/ruby/vendor_ruby/state_machine/path.rb
/usr/lib/ruby/vendor_ruby/yard-state_machine.rb
/usr/lib/ruby/vendor_ruby/state_machine.rb
/usr/lib/ruby/vendor_ruby/tasks/
/usr/lib/ruby/vendor_ruby/tasks/state_machine.rb
/usr/lib/ruby/vendor_ruby/tasks/state_machine.rake