错误信息:
```
dong@dong:/go-ethereum$ make geth
env GO111MODULE=on go run build/ci.go install ./cmd/geth
build/ci.go:62:2: use of internal package not allowed
/home/dong/goproject/src/crypto/ed25519/ed25519.go:33:2: use of internal package not allowed
make: *** [Makefile:16:geth] 错...