/usr/ is in ruby-yajl 1.2.0-3build4.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/x86_64-linux-gnu/ruby/vendor_ruby/2.3.0/yajl/
/usr/lib/
/usr/lib/x86_64-linux-gnu/
/usr/lib/x86_64-linux-gnu/ruby/
/usr/lib/x86_64-linux-gnu/ruby/vendor_ruby/
/usr/lib/x86_64-linux-gnu/ruby/vendor_ruby/2.3.0/
/usr/lib/x86_64-linux-gnu/ruby/vendor_ruby/2.3.0/yajl/yajl.so
/usr/lib/ruby/
/usr/lib/ruby/vendor_ruby/
/usr/lib/ruby/vendor_ruby/yajl/
/usr/lib/ruby/vendor_ruby/yajl/deflate.rb
/usr/lib/ruby/vendor_ruby/yajl/bzip2.rb
/usr/lib/ruby/vendor_ruby/yajl/bzip2/
/usr/lib/ruby/vendor_ruby/yajl/bzip2/stream_writer.rb
/usr/lib/ruby/vendor_ruby/yajl/bzip2/stream_reader.rb
/usr/lib/ruby/vendor_ruby/yajl/gzip/
/usr/lib/ruby/vendor_ruby/yajl/gzip/stream_writer.rb
/usr/lib/ruby/vendor_ruby/yajl/gzip/stream_reader.rb
/usr/lib/ruby/vendor_ruby/yajl/gzip.rb
/usr/lib/ruby/vendor_ruby/yajl/http_stream.rb
/usr/lib/ruby/vendor_ruby/yajl/json_gem/
/usr/lib/ruby/vendor_ruby/yajl/json_gem/parsing.rb
/usr/lib/ruby/vendor_ruby/yajl/json_gem/encoding.rb
/usr/lib/ruby/vendor_ruby/yajl/json_gem.rb
/usr/lib/ruby/vendor_ruby/yajl/version.rb
/usr/lib/ruby/vendor_ruby/yajl/deflate/
/usr/lib/ruby/vendor_ruby/yajl/deflate/stream_writer.rb
/usr/lib/ruby/vendor_ruby/yajl/deflate/stream_reader.rb
/usr/lib/ruby/vendor_ruby/yajl.rb
/usr/share/
/usr/share/rubygems-integration/
/usr/share/rubygems-integration/2.3.0/
/usr/share/rubygems-integration/2.3.0/specifications/
/usr/share/rubygems-integration/2.3.0/specifications/yajl-ruby-1.2.0.gemspec
/usr/share/doc/
/usr/share/doc/ruby-yajl/
/usr/share/doc/ruby-yajl/examples/
/usr/share/doc/ruby-yajl/examples/parsing/
/usr/share/doc/ruby-yajl/examples/parsing/from_file.rb
/usr/share/doc/ruby-yajl/examples/parsing/from_stdin.rb
/usr/share/doc/ruby-yajl/examples/parsing/from_string.rb
/usr/share/doc/ruby-yajl/examples/http/
/usr/share/doc/ruby-yajl/examples/http/twitter_search_api.rb
/usr/share/doc/ruby-yajl/examples/http/twitter_stream_api.rb
/usr/share/doc/ruby-yajl/examples/encoding/
/usr/share/doc/ruby-yajl/examples/encoding/to_an_io.rb
/usr/share/doc/ruby-yajl/examples/encoding/one_shot.rb
/usr/share/doc/ruby-yajl/examples/encoding/chunked_encoding.rb
/usr/share/doc/ruby-yajl/copyright
/usr/share/doc/ruby-yajl/changelog.Debian.gz
/usr/share/doc/ruby-yajl/README.md.gz