/usr/share/doc/golang-go.crypto-dev/NEWS.Debian.gz is in golang-go.crypto-dev 1:0.0~git20170629.0.5ef0053-2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/golang-go.crypto-dev/../golang-golang-x-crypto-dev/NEWS.Debian.gz