these 2 derivations will be built:
  /nix/store/sg77zn2agn8mpifxbc736b9nd04x8w2z-nixos-test-driver-pgmq.drv
  /nix/store/n6g3710rpvx7mmlncyqpkn2ki50xx6pq-vm-test-run-pgmq.drv