/etc/fonts/conf.d/30-0-google-crosextra-caladea-fontconfig.conf is in fonts-crosextra-caladea 20130214-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /etc/fonts/conf.d/../conf.avail/30-0-google-crosextra-caladea-fontconfig.conf