$ go get -u github.com/simon3z/rh-multistage-check
You may consider to set your GOBIN path to your local bin directory, e.g.:
$ GOBIN=$HOME/.local/bin go get -u github.com/simon3z/rh-multistage-check
$ rh-multistage-check --branch <branch> --repository <repo1> --repository <repo2> ...
Go 1.11 is required to build (modules support). You can check your Go version with:
$ go version