these 4 derivations will be built:
  /nix/store/pq9wr9sy0x3pglbg5aa1awgdy1srxq3p-nixos-vm.drv
  /nix/store/gs4rjx4qmmc8gdkbx2i75w2jbyirsvsy-driverConfiguration.json.drv
  /nix/store/jr1hqzza06smma8d8incxa9j2f9lhpzy-nixos-test-driver-from-nixos-separated-phases.drv
  /nix/store/79r985bn92k1izpmc0810wh35ci023b4-vm-test-run-from-nixos-separated-phases.drv