/usr/lib/x86_64-linux-gnu/libgo.so.13 is in libgo13 8-20180414-1ubuntu2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libgo.so.13.0.0
/usr/lib/x86_64-linux-gnu/libgo.so.13.0.0