gccgo-multilib-x86-64-linux-gnu 4:8.2.0-1ubuntu1 (arm64 binary) in ubuntu cosmic

 This is the GNU Go compiler, which compiles Go on platforms supported by
 the gcc compiler. It uses the gcc backend to generate optimized code.
 .
 This is a dependency package providing the default GNU Go cross-compiler
 for the amd64 architecture.