Exit code 1 returned from process: file name '/home/runner/actions-runner/cached/bin/Runner.PluginHost', arguments 'action "GitHub.Runner.Plugins.Repository.v1_0.CheckoutTask, Runner.Plugins"'.

Git fetch failed with exit code: 128

couldn't find remote ref refs/pull/15/merge

couldn't find remote ref refs/pull/15/merge

couldn't find remote ref refs/pull/15/merge

Git fetch failed with exit code 128, back off 8.855 seconds before retry.