Git checkout: Error: fatal: repository not found (private repo)

Code to Cloud GitHub Actions
#1

Anyone else getting this? This just started yesterday evening and still getting it. The repository does exist and this flow used to work fine earlier in the day.

...
      - name: "Checkout"
        uses: actions/checkout@v2
        with:
          fetch-depth: 0
      - run: |
          git checkout ${{ github.event.inputs.ref }}

...

 Error: fatal: repository 'https://github.com/bitsofinfo/my-private-repo/' not found
  The process '/usr/bin/git' failed with exit code 128
  Waiting 12 seconds before trying again
  /usr/bin/git -c protocol.version=2 fetch --prune --progress --no-recurse-submodules origin +refs/heads/*:refs/
#2

Hi,

We have had a few users report this issue with actions/checkout and private repositories, and our team is currently investigating.

We recommend following along in this issue for updates: