these 7 derivations will be built:
  /nix/store/avf67l0mggqldqx1khi7gb7zx6wlacjx-nixos-system-server-test.drv
  /nix/store/qrihfyc3yc09gf566c6xr847j7srih7s-nixos-system-server-test.drv
  /nix/store/4hgwv9h9jkz3f0paajqbb4qndifsn414-closure-info.drv
  /nix/store/yssbd630a9wffqsqjdxng61bn1y8aqn1-run-nixos-vm.drv
  /nix/store/1nbqs2lph7b8qi5qd454s45q9knpr8km-nixos-vm.drv
  /nix/store/x2c57fxkqwwz0p28lhv9z35529l8lcfp-nixos-test-driver-amcheck-upgrade.drv
  /nix/store/bygswmkn7sdqgw3krj5lx0whm7f1ymii-vm-test-run-amcheck-upgrade.drv