these 2 derivations will be built:
  /nix/store/574q94106q4gqn44zscpm37k2j3mcxfy-nixos-test-driver-plpgsql_check.drv
  /nix/store/mg0p44qxax5igcqfjr50h573qrvbx74b-vm-test-run-plpgsql_check.drv
building '/nix/store/574q94106q4gqn44zscpm37k2j3mcxfy-nixos-test-driver-plpgsql_check.drv' on 'ssh-ng://nixbot-remote-build@78.232.36.247'