/usr/lib/ is in ruby-logging 2.0.0-1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/ruby/
/usr/lib/ruby/vendor_ruby/
/usr/lib/ruby/vendor_ruby/logging/
/usr/lib/ruby/vendor_ruby/logging/version.rb
/usr/lib/ruby/vendor_ruby/logging/layouts.rb
/usr/lib/ruby/vendor_ruby/logging/rails_compat.rb
/usr/lib/ruby/vendor_ruby/logging/color_scheme.rb
/usr/lib/ruby/vendor_ruby/logging/filters/
/usr/lib/ruby/vendor_ruby/logging/filters/level.rb
/usr/lib/ruby/vendor_ruby/logging/appender.rb
/usr/lib/ruby/vendor_ruby/logging/filter.rb
/usr/lib/ruby/vendor_ruby/logging/appenders.rb
/usr/lib/ruby/vendor_ruby/logging/logger.rb
/usr/lib/ruby/vendor_ruby/logging/appenders/
/usr/lib/ruby/vendor_ruby/logging/appenders/buffering.rb
/usr/lib/ruby/vendor_ruby/logging/appenders/string_io.rb
/usr/lib/ruby/vendor_ruby/logging/appenders/console.rb
/usr/lib/ruby/vendor_ruby/logging/appenders/syslog.rb
/usr/lib/ruby/vendor_ruby/logging/appenders/io.rb
/usr/lib/ruby/vendor_ruby/logging/appenders/file.rb
/usr/lib/ruby/vendor_ruby/logging/appenders/rolling_file.rb
/usr/lib/ruby/vendor_ruby/logging/utils.rb
/usr/lib/ruby/vendor_ruby/logging/log_event.rb
/usr/lib/ruby/vendor_ruby/logging/layout.rb
/usr/lib/ruby/vendor_ruby/logging/layouts/
/usr/lib/ruby/vendor_ruby/logging/layouts/pattern.rb
/usr/lib/ruby/vendor_ruby/logging/layouts/parseable.rb
/usr/lib/ruby/vendor_ruby/logging/layouts/basic.rb
/usr/lib/ruby/vendor_ruby/logging/diagnostic_context.rb
/usr/lib/ruby/vendor_ruby/logging/root_logger.rb
/usr/lib/ruby/vendor_ruby/logging/repository.rb
/usr/lib/ruby/vendor_ruby/logging/proxy.rb
/usr/lib/ruby/vendor_ruby/logging/filters.rb
/usr/lib/ruby/vendor_ruby/rspec/
/usr/lib/ruby/vendor_ruby/rspec/logging_helper.rb
/usr/lib/ruby/vendor_ruby/spec/
/usr/lib/ruby/vendor_ruby/spec/logging_helper.rb
/usr/lib/ruby/vendor_ruby/logging.rb