Need help: Configure authentication credentials for the Go Git repository

Hi

I am trying to setup go environment for contribution using the contribution guide( in WSL(Ubuntu)),
but facing issues in Step 2 : Configure authentication credentials for the Go Git repository

after running the scripts provided through go.googlesource.com
I am trying to run $ go-contrib-init
and got following error:
git remote -v output didn't contain expected "https://go.googlesource.com/go". Got:

I am not sure if I am missing anything here.