/usr/lib/x86_64-linux-gnu/libusermetricsinput.so.1 is in libusermetricsinput1 1.1.1+15.10.20150915-0ubuntu1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libusermetricsinput.so.1.0.0