/usr/lib/x86_64-linux-gnu/ is in libglib-object-introspection-perl 0.025-1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/x86_64-linux-gnu/perl5/
/usr/lib/x86_64-linux-gnu/perl5/5.20/
/usr/lib/x86_64-linux-gnu/perl5/5.20/auto/
/usr/lib/x86_64-linux-gnu/perl5/5.20/auto/Glib/
/usr/lib/x86_64-linux-gnu/perl5/5.20/auto/Glib/Object/
/usr/lib/x86_64-linux-gnu/perl5/5.20/auto/Glib/Object/Introspection/
/usr/lib/x86_64-linux-gnu/perl5/5.20/auto/Glib/Object/Introspection/Introspection.so
/usr/lib/x86_64-linux-gnu/perl5/5.20/Glib/
/usr/lib/x86_64-linux-gnu/perl5/5.20/Glib/Object/
/usr/lib/x86_64-linux-gnu/perl5/5.20/Glib/Object/Introspection.pm
/usr/lib/x86_64-linux-gnu/perl5/5.20/Glib/Object/Introspection/
/usr/lib/x86_64-linux-gnu/perl5/5.20/Glib/Object/Introspection/Install/
/usr/lib/x86_64-linux-gnu/perl5/5.20/Glib/Object/Introspection/Install/Files.pm