/usr/lib/guile/2.0/guile-gnutls-v-2.so.0 is in guile-gnutls 3.3.8-6+deb8u7.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/guile/2.0/guile-gnutls-v-2.so.0.0.0
/usr/lib/guile/2.0/guile-gnutls-v-2.so.0.0.0