/usr/lib/x86_64-linux-gnu/libvolume_io2.so is in libminc-dev 2.2.00-3.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libvolume_io2.so.3.0.0
/usr/lib/x86_64-linux-gnu/libvolume_io2.so.3.0.0