/usr/share/doc/libcr-dev/changelog.Debian.gz is in libcr-dev 0.8.5-2.1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/libcr-dev/../libcr0/changelog.Debian.gz
/usr/share/doc/libcr-dev/../libcr0/changelog.Debian.gz