these 19 derivations will be built:
  /nix/store/4w8hlba584fj2ldnhk1hw25k2hmymk1x-user-units.drv
  /nix/store/yf0xqgbpi4m7f7wgni8gpnhn8zvhjvmv-system-units.drv
  /nix/store/p5q6z7z08y989vwnr1yqyqng3kzzwd3x-etc.drv
  /nix/store/jg69z6kqdsr1hjvkjaj8sssw24napkkv-activate.drv
  /nix/store/8mk7bh7fw2rg9gq1p36izfc71b85k93f-nixos-system-beta-test.drv
  /nix/store/7kf4nxdaz640qcvka7sdgvrrrmnkxchr-closure-info.drv
  /nix/store/54vdmv0zgyl3xqf8jw5fykra5q2pihfs-run-nixos-vm.drv
  /nix/store/j3981i7yb0flz5bk1afwxx3xplwg75a0-nixos-vm.drv
  /nix/store/kjqi5j61snaham3xpj1g4f6bbxfjbr8k-unit-dbus-broker.service.drv
  /nix/store/0bdvb54bwsyhlmf78j13b50djjq0ggic-user-units.drv
  /nix/store/7gq6afp7nqnh7l1lb4imds4nbhqwqi3w-etc.drv
  /nix/store/d1rdmj79rnv1v4jqw6ay1nb7lpiz75hr-activate.drv
  /nix/store/5sisdp1a4xsk7ksnzq61l27msv95h3wp-nixos-system-alpha-test.drv
  /nix/store/cflidj399cjn1amfjq03v2lkmphk3pmj-closure-info.drv
  /nix/store/dawj0fls8s65f5radx8p3x42xzzibv0k-run-nixos-vm.drv
  /nix/store/v6i21bh9sv5cgkss1l5gbanbfp3llg9r-nixos-vm.drv
  /nix/store/y3ynp6rbb4j91skymrni34xkfw3zkphq-driverConfiguration.json.drv
  /nix/store/038vypkwya7yn5b9mdaadyyhc537vasn-nixos-test-driver-tincr-module.drv
  /nix/store/as96z885cabq72i9pwrzdm7i31ffp8fs-vm-test-run-tincr-module.drv