/usr/lib/x86_64-linux-gnu/ is in libx11-xcb-perl 0.15-2.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/x86_64-linux-gnu/perl5/5.22/auto/
/usr/lib/x86_64-linux-gnu/perl5/
/usr/lib/x86_64-linux-gnu/perl5/5.22/
/usr/lib/x86_64-linux-gnu/perl5/5.22/auto/X11/
/usr/lib/x86_64-linux-gnu/perl5/5.22/auto/X11/XCB/
/usr/lib/x86_64-linux-gnu/perl5/5.22/auto/X11/XCB/XCB.so
/usr/lib/x86_64-linux-gnu/perl5/5.22/X11/
/usr/lib/x86_64-linux-gnu/perl5/5.22/X11/XCB/
/usr/lib/x86_64-linux-gnu/perl5/5.22/X11/XCB/Screen.pm
/usr/lib/x86_64-linux-gnu/perl5/5.22/X11/XCB/Rect.pm
/usr/lib/x86_64-linux-gnu/perl5/5.22/X11/XCB/Atom.pm
/usr/lib/x86_64-linux-gnu/perl5/5.22/X11/XCB/Window.pm
/usr/lib/x86_64-linux-gnu/perl5/5.22/X11/XCB/Connection.pm
/usr/lib/x86_64-linux-gnu/perl5/5.22/X11/XCB/Sizehints.pm
/usr/lib/x86_64-linux-gnu/perl5/5.22/X11/XCB/Color.pm
/usr/lib/x86_64-linux-gnu/perl5/5.22/X11/XCB/Event/
/usr/lib/x86_64-linux-gnu/perl5/5.22/X11/XCB/Event/PropertyNotify.pm
/usr/lib/x86_64-linux-gnu/perl5/5.22/X11/XCB/Event/Focus.pm
/usr/lib/x86_64-linux-gnu/perl5/5.22/X11/XCB/Event/ClientMessage.pm
/usr/lib/x86_64-linux-gnu/perl5/5.22/X11/XCB/Event/Generic.pm
/usr/lib/x86_64-linux-gnu/perl5/5.22/X11/XCB/Event/MapNotify.pm
/usr/lib/x86_64-linux-gnu/perl5/5.22/X11/XCB/Sizehints/
/usr/lib/x86_64-linux-gnu/perl5/5.22/X11/XCB/Sizehints/Aspect.pm
/usr/lib/x86_64-linux-gnu/perl5/5.22/X11/XCB.pm