/usr/share/ is in ruby-cairo 1.15.2-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/doc/
/usr/share/doc/ruby-cairo/
/usr/share/doc/ruby-cairo/changelog.Debian.gz
/usr/share/doc/ruby-cairo/changelog.gz
/usr/share/doc/ruby-cairo/copyright
/usr/share/doc/ruby-cairo/examples/
/usr/share/doc/ruby-cairo/examples/agg/
/usr/share/doc/ruby-cairo/examples/agg/README
/usr/share/doc/ruby-cairo/examples/agg/aa_test.rb
/usr/share/doc/ruby-cairo/examples/blur.rb
/usr/share/doc/ruby-cairo/examples/pac-nomralize.rb
/usr/share/doc/ruby-cairo/examples/pac-tee.rb
/usr/share/doc/ruby-cairo/examples/pac.rb
/usr/share/doc/ruby-cairo/examples/png.rb
/usr/share/doc/ruby-cairo/examples/scalable.rb
/usr/share/doc/ruby-cairo/examples/text-on-path.rb
/usr/share/doc/ruby-cairo/examples/text2.rb
/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/cairo-1.15.2.gemspec