Maintainers for libgo16 are Debian GCC Maintainers <debian-gcc@lists.debian.org>.
You may want to refer to the following packages that are part of the same source: cpp-10, g++-10, g++-10-multilib, gcc-10, gcc-10-base, gcc-10-hppa64-linux-gnu, gcc-10-locales, gcc-10-multilib, gcc-10-offload-amdgcn, gcc-10-offload-nvptx, gcc-10-plugin-dev, gcc-10-source, gcc-10-test-results, gccbrig-10, gccgo-10, gccgo-10-multilib, gdc-10, gdc-10-multilib, gfortran-10, gfortran-10-multilib, gm2-10, gnat-10, gobjc++-10, gobjc++-10-multilib, gobjc-10, gobjc-10-multilib, lib32gcc-10-dev, lib32gfortran-10-dev, lib32go-10-dev, lib32go16, lib32gphobos-10-dev, lib32gphobos1, lib32objc-10-dev, lib32stdc++-10-dev, lib32stdc++6-10-dbg, lib64gcc-10-dev, lib64gfortran-10-dev, lib64go-10-dev, lib64go16, lib64gphobos-10-dev, lib64gphobos1, lib64objc-10-dev, lib64stdc++-10-dev, lib64stdc++6-10-dbg, libgcc-10-dev, libgccjit-10-dev, libgccjit-10-doc, libgfortran-10-dev, libgm2-10-dev, libgm2-15, libgnat-10, libgnat-util10, libgnat-util10-dev, libgo-10-dev, libgomp-plugin-hsa1, libgphobos-10-dev, libgphobos1, libhsail-rt-10-dev, libobjc-10-dev, libstdc++-10-dev, libstdc++-10-doc, libstdc++-10-pic, libstdc++6-10-dbg, libx32gcc-10-dev, libx32gfortran-10-dev, libx32go-10-dev, libx32go16, libx32gphobos-10-dev, libx32gphobos1, libx32objc-10-dev, libx32stdc++-10-dev, libx32stdc++6-10-dbg.
You might like to refer to the libgo16 package page, to the Package Tracking System, or to the source package src:gcc-10's bug page.
If you find a bug not listed here, please report it.