/usr/lib/x86_64-linux-gnu/libcrmcluster.so.4 is in libcrmcluster4 1.1.16-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libcrmcluster.so.4.2.1
/usr/lib/x86_64-linux-gnu/libcrmcluster.so.4.2.1