/usr/ is in ruby-rsvg2-dbg 2.1.0-1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/debug/usr/lib/
/usr/lib/
/usr/lib/debug/
/usr/lib/debug/usr/
/usr/lib/debug/usr/lib/x86_64-linux-gnu/
/usr/lib/debug/usr/lib/x86_64-linux-gnu/ruby/
/usr/lib/debug/usr/lib/x86_64-linux-gnu/ruby/vendor_ruby/
/usr/lib/debug/usr/lib/x86_64-linux-gnu/ruby/vendor_ruby/2.0.0/
/usr/lib/debug/usr/lib/x86_64-linux-gnu/ruby/vendor_ruby/2.0.0/rsvg2.so
/usr/lib/debug/usr/lib/ruby/
/usr/lib/debug/usr/lib/ruby/vendor_ruby/
/usr/lib/debug/usr/lib/ruby/vendor_ruby/1.9.1/
/usr/lib/debug/usr/lib/ruby/vendor_ruby/1.9.1/x86_64-linux/
/usr/lib/debug/usr/lib/ruby/vendor_ruby/1.9.1/x86_64-linux/rsvg2.so
/usr/share/
/usr/share/doc/
/usr/share/doc/ruby-rsvg2-dbg/
/usr/share/doc/ruby-rsvg2-dbg/copyright
/usr/share/doc/ruby-rsvg2-dbg/changelog.Debian.gz