/usr/mips64el-linux-gnuabi64/libo32/libgo.so.13 is in lib32go13-mips64el-cross 8-20180414-1ubuntu2cross1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/mips64el-linux-gnuabi64/libo32/libgo.so.13.0.0