these 10 derivations will be built:
  /nix/store/2a1z0wkvip11gpgrqyjkxqqhn9k3ll5a-stage-2-init.sh.drv
  /nix/store/7b3rsqh0igdh4svmq6pbrsixsgi9l1sk-boot.json.drv
  /nix/store/klpbhfqpa80dd741jb3by0419j5l2fj5-builder.pl.drv
  /nix/store/jp37i1pvjvk5j16jm29k3vml1hlhmlwx-perl-5.42.0-env.drv
  /nix/store/m6r11llppr97bgwv3rk4ab6sxvb6lf49-nixos-system-server-test.drv
  /nix/store/bjpc92rfjg29vh3x3zsgwnf18aqphv70-closure-info.drv
  /nix/store/5rhp575nws72g87fajyfkx8fh386r2i4-run-nixos-vm.drv
  /nix/store/yxfnq1703w2b12hhs6dd2j920g9gzs4z-nixos-vm.drv
  /nix/store/bn846l8mq9cybnkkwz1hcb9qhlf78qxa-nixos-test-driver-plv8.drv
  /nix/store/ik62ld2wc92hpid75xlx4y8rhls8viyd-vm-test-run-plv8.drv