/usr/lib/libtorrent-rasterbar.so is in libtorrent-rasterbar-dev 0.16.18-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/libtorrent-rasterbar.so.7.0.0
/usr/lib/libtorrent-rasterbar.so.7.0.0