Compatibility with future Go versions

[Bo98]

Just a heads up that Go 1.17 (and the just-released 1.16 without first changing GO111MODULE) won't support builds that aren't in module-aware mode.

I'm not sure what the status of this project is. Is there any plans to migrate to Go modules?

https://blog.golang.org/go116-module-changes

[chenrui333]

Bump this cc @abiosoft