/usr/mips64-linux-gnuabi64/lib32/libgo.so.9 is in libn32go9-mips64-cross 6.3.0-18cross1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/mips64-linux-gnuabi64/lib32/libgo.so.9.0.0
/usr/mips64-linux-gnuabi64/lib32/libgo.so.9.0.0