/usr/lib/x86_64-linux-gnu/ is in libhtml-parser-perl 3.71-1+b3.
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/HTML/
/usr/lib/x86_64-linux-gnu/perl5/5.20/auto/HTML/Parser/
/usr/lib/x86_64-linux-gnu/perl5/5.20/auto/HTML/Parser/Parser.so
/usr/lib/x86_64-linux-gnu/perl5/5.20/HTML/
/usr/lib/x86_64-linux-gnu/perl5/5.20/HTML/TokeParser.pm
/usr/lib/x86_64-linux-gnu/perl5/5.20/HTML/Parser.pm
/usr/lib/x86_64-linux-gnu/perl5/5.20/HTML/HeadParser.pm
/usr/lib/x86_64-linux-gnu/perl5/5.20/HTML/LinkExtor.pm
/usr/lib/x86_64-linux-gnu/perl5/5.20/HTML/Filter.pm
/usr/lib/x86_64-linux-gnu/perl5/5.20/HTML/Entities.pm
/usr/lib/x86_64-linux-gnu/perl5/5.20/HTML/PullParser.pm