/usr/lib/ is in libbit-vector-perl 7.4-1build4.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/x86_64-linux-gnu/
/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/Bit/
/usr/lib/x86_64-linux-gnu/perl5/5.26/Bit/Vector/
/usr/lib/x86_64-linux-gnu/perl5/5.26/Bit/Vector/Overload.pm
/usr/lib/x86_64-linux-gnu/perl5/5.26/Bit/Vector/Overload.pod
/usr/lib/x86_64-linux-gnu/perl5/5.26/Bit/Vector/String.pm
/usr/lib/x86_64-linux-gnu/perl5/5.26/Bit/Vector/String.pod
/usr/lib/x86_64-linux-gnu/perl5/5.26/Bit/Vector.pm
/usr/lib/x86_64-linux-gnu/perl5/5.26/Bit/Vector.pod
/usr/lib/x86_64-linux-gnu/perl5/5.26/auto/
/usr/lib/x86_64-linux-gnu/perl5/5.26/auto/Bit/
/usr/lib/x86_64-linux-gnu/perl5/5.26/auto/Bit/Vector/
/usr/lib/x86_64-linux-gnu/perl5/5.26/auto/Bit/Vector/Vector.so