these 11 derivations will be built:
  /nix/store/xlvb1k4h679433f6yma9r53cddv9f092-unit-echo.service.drv
  /nix/store/l1xygwv1q6g4iyigkl46f2x6r6x767p7-system-units.drv
  /nix/store/zv8gyabgnfylxhn9a54x0gjmg0firzxp-etc.drv
  /nix/store/3mx5k4r1brg0a9rw4nrrvm0hcjjksssy-activate.drv
  /nix/store/x2gfgcbywz32gfidj7gysdddbz8ila4s-nixos-system-machine-test.drv
  /nix/store/343z3k6lmms1k2y71lnpswbbakg45rj3-closure-info.drv
  /nix/store/ym9cb76spkv8pd0lhnx9ybhmppbpw0ii-run-nixos-vm.drv
  /nix/store/lpmm0cy46flik1cf14p3g4z4r05l71q7-nixos-vm.drv
  /nix/store/ynpzj1wcyidjsxrvrfghlj3rfwqn8qcc-driverConfiguration.json.drv
  /nix/store/1b30p15vmdq7vw4lymn6jd41ij3k646c-nixos-test-driver-systemd-escaping.drv
  /nix/store/l87m1vbn7jvkn5lzklkc3dzw7ynn56hr-vm-test-run-systemd-escaping.drv