/usr/lib/ is in libyaml-libyaml-perl 0.69+repack-1.
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/YAML/
/usr/lib/x86_64-linux-gnu/perl5/5.26/YAML/LibYAML.pm
/usr/lib/x86_64-linux-gnu/perl5/5.26/YAML/LibYAML.pod
/usr/lib/x86_64-linux-gnu/perl5/5.26/YAML/XS/
/usr/lib/x86_64-linux-gnu/perl5/5.26/YAML/XS/LibYAML.pm
/usr/lib/x86_64-linux-gnu/perl5/5.26/YAML/XS.pm
/usr/lib/x86_64-linux-gnu/perl5/5.26/YAML/XS.pod
/usr/lib/x86_64-linux-gnu/perl5/5.26/auto/
/usr/lib/x86_64-linux-gnu/perl5/5.26/auto/YAML/
/usr/lib/x86_64-linux-gnu/perl5/5.26/auto/YAML/XS/
/usr/lib/x86_64-linux-gnu/perl5/5.26/auto/YAML/XS/LibYAML/
/usr/lib/x86_64-linux-gnu/perl5/5.26/auto/YAML/XS/LibYAML/LibYAML.so