DEPRECATED. Please see: https://github.com/CircleCI-Public/cci-demo-go for the current demo application for Go on CircleCI 2.0
CircleCI 2.0 Demo Application: Go (Golang) 
This is an example application showcasing how to run Go on CircleCI 2.0.
You can follow along with this project by reading the following doc: https://circleci.com/docs/2.0/language-go/