This file is indexed.

/usr/s390x-linux-gnu/lib/libgfortran.so.3 is in libgfortran3-s390x-cross 6.4.0-17ubuntu1cross1.

This file is owned by root:root, with mode 0o777.

It is a symlink to /usr/s390x-linux-gnu/lib/libgfortran.so.3.0.0