The self-hosted runner: github-runner1-gha0 lost communication with the server. Verify the machine is running and has a healthy network connection. Anything in your workflow that terminates the runner process, starves it for CPU/Memory, or blocks its network access can cause this error.

buildx failed with: ERROR: failed to solve: failed to compute cache key: failed to copy: write /var/lib/buildkit/runc-overlayfs/content/ingest/93db8f81a0d3c32a1a8c290504a8ab0a51b667a653859cb3fec626eb5550a373/data: disk quota exceeded

Error: Error: No such object: buildx_buildkit_builder-e9a32c87-7dab-4d78-a91a-c7050fab619c1