Hey,
Did you explicitly request an emulated build?
Qemu is known to be unreliable with go compilations, and we would always recommend using our native arm builders instead (and they’ll also provide much faster builds).
Occassionally network hiccups can cause the builder to fallback to an emulated build, perhaps this is what happened? In that case you should be able to repush, get a native ARM builder, and your build will succeed.