Process completed with exit code 255.

Process completed with exit code 255.

The runner has received a shutdown signal. This can happen when the runner service is stopped, or a manually started runner is canceled.

Process completed with exit code 255.

The operation was canceled.

Process completed with exit code 99.

The runner has received a shutdown signal. This can happen when the runner service is stopped, or a manually started runner is canceled.

The hosted runner: GitHub Actions 23 lost communication with the server. Anything in your workflow that terminates the runner process, starves it for CPU/Memory, or blocks its network access can cause this error.

Process completed with exit code 255.

Process completed with exit code 255.

Process completed with exit code 255.

Process completed with exit code 255.

Process completed with exit code 255.

Process completed with exit code 255.

Process completed with exit code 255.

Process completed with exit code 255.

Process completed with exit code 255.

Process completed with exit code 255.

The hosted runner: GitHub Actions 30 lost communication with the server. Anything in your workflow that terminates the runner process, starves it for CPU/Memory, or blocks its network access can cause this error.

Process completed with exit code 255.

Process completed with exit code 255.

Process completed with exit code 99.

Process completed with exit code 255.

Process completed with exit code 255.

Process completed with exit code 255.

Process completed with exit code 255.

Process completed with exit code 255.

ubuntu-latest pipelines will use ubuntu-24.04 soon. For more details, see https://github.com/actions/runner-images/issues/10636