/usr/ is in ruby-mousetrap-rails 1.4.6-5.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/ruby/vendor_ruby/
/usr/share/doc/
/usr/share/doc/ruby-mousetrap-rails/
/usr/lib/ruby/
/usr/share/
/usr/share/doc/ruby-mousetrap-rails/README.md.gz
/usr/share/doc/ruby-mousetrap-rails/changelog.Debian.gz
/usr/share/doc/ruby-mousetrap-rails/copyright
/usr/share/ruby-mousetrap-rails/
/usr/share/ruby-mousetrap-rails/vendor/
/usr/share/ruby-mousetrap-rails/vendor/assets/
/usr/share/ruby-mousetrap-rails/vendor/assets/javascripts/
/usr/share/ruby-mousetrap-rails/vendor/assets/javascripts/mousetrap/
/usr/share/ruby-mousetrap-rails/vendor/assets/javascripts/mousetrap/plugins.js
/usr/share/ruby-mousetrap-rails/app/
/usr/share/ruby-mousetrap-rails/app/assets/
/usr/share/ruby-mousetrap-rails/app/assets/stylesheets/
/usr/share/ruby-mousetrap-rails/app/assets/stylesheets/mousetrap.css.sass
/usr/share/ruby-mousetrap-rails/app/assets/stylesheets/mousetrap.css
/usr/share/rubygems-integration/
/usr/share/rubygems-integration/all/
/usr/share/rubygems-integration/all/specifications/
/usr/share/rubygems-integration/all/specifications/mousetrap-rails-1.4.6.gemspec
/usr/lib/
/usr/lib/ruby/vendor_ruby/mousetrap-rails.rb
/usr/lib/ruby/vendor_ruby/generators/
/usr/lib/ruby/vendor_ruby/generators/mousetrap/
/usr/lib/ruby/vendor_ruby/generators/mousetrap/install/
/usr/lib/ruby/vendor_ruby/generators/mousetrap/install/install_generator.rb
/usr/lib/ruby/vendor_ruby/generators/mousetrap/install/USAGE
/usr/lib/ruby/vendor_ruby/generators/mousetrap/install/templates/
/usr/lib/ruby/vendor_ruby/generators/mousetrap/install/templates/keybindings.js.coffee
/usr/lib/ruby/vendor_ruby/generators/mousetrap/install/templates/application.js
/usr/lib/ruby/vendor_ruby/generators/mousetrap/install/templates/application.css
/usr/lib/ruby/vendor_ruby/mousetrap-rails/
/usr/lib/ruby/vendor_ruby/mousetrap-rails/railtie.rb
/usr/lib/ruby/vendor_ruby/mousetrap-rails/version.rb
/usr/lib/ruby/vendor_ruby/mousetrap-rails/engine.rb
/usr/share/ruby-mousetrap-rails/vendor/assets/javascripts/mousetrap/global.js
/usr/share/ruby-mousetrap-rails/vendor/assets/javascripts/mousetrap/pause.js
/usr/share/ruby-mousetrap-rails/vendor/assets/javascripts/mousetrap/record.js
/usr/share/ruby-mousetrap-rails/vendor/assets/javascripts/mousetrap/dictionary.js
/usr/share/ruby-mousetrap-rails/vendor/assets/javascripts/mousetrap.js