buildx failed with: ERROR: failed to solve: process "/bin/sh -c apt-get update && apt-get install -y --no-install-recommends gnupg1 && apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys EEA14886 && apt-get purge -y --auto-remove gnupg1 && rm -rf /var/lib/apt/lists/* && echo \"deb http://ppa.launchpad.net/webupd8team/java/ubuntu xenial main\" | tee /etc/apt/sources.list.d/webupd8team-java.list && echo oracle-java9-installer shared/accepted-oracle-license-v1-1 select true | debconf-set-selections" did not complete successfully: exit code: 1

The self-hosted runner: small-runner-xnlfl-8pg98 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.

The self-hosted runner: small-runner-xnlfl-nc7tw 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.

The self-hosted runner: small-runner-xnlfl-lqdcm 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.