/usr/lib/x86_64-linux-gnu/ is in libscalar-list-utils-perl 1:1.50-1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/x86_64-linux-gnu/perl5/
/usr/lib/x86_64-linux-gnu/perl5/5.26/
/usr/lib/x86_64-linux-gnu/perl5/5.26/List/
/usr/lib/x86_64-linux-gnu/perl5/5.26/List/Util/
/usr/lib/x86_64-linux-gnu/perl5/5.26/List/Util/XS.pm
/usr/lib/x86_64-linux-gnu/perl5/5.26/List/Util.pm
/usr/lib/x86_64-linux-gnu/perl5/5.26/Scalar/
/usr/lib/x86_64-linux-gnu/perl5/5.26/Scalar/Util.pm
/usr/lib/x86_64-linux-gnu/perl5/5.26/Sub/
/usr/lib/x86_64-linux-gnu/perl5/5.26/Sub/Util.pm
/usr/lib/x86_64-linux-gnu/perl5/5.26/auto/
/usr/lib/x86_64-linux-gnu/perl5/5.26/auto/List/
/usr/lib/x86_64-linux-gnu/perl5/5.26/auto/List/Util/
/usr/lib/x86_64-linux-gnu/perl5/5.26/auto/List/Util/Util.so