/usr/lib/gcc-cross/mips-linux-gnu/5/n32/libgo.so is in gccgo-5-multilib-mips-linux-gnu 5.5.0-12ubuntu1cross1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/gcc-cross/mips-linux-gnu/5/n32/../../../../../mips-linux-gnu/lib32/libgo.so.7