these 2 derivations will be built:
  /nix/store/5prbik30xvx8lhrwi57yn3q6cjg929cd-nixos-test-driver-pgmq.drv
  /nix/store/j1y3lni23j1kzmrd59smdzlm4zjyxvnq-vm-test-run-pgmq.drv