these 9 derivations will be built:
  /nix/store/4jiyf37rxif051bxzs32zzs1n18qc18f-etc.drv
  /nix/store/ypk9072l57kikx1zdj2ihj2zw3gkhfld-activate.drv
  /nix/store/5jmlg6camzhnzlm6gi785f59piaby3vc-nixos-system-server-test.drv
  /nix/store/c8bmgxlvnfibgwccd23xbgq6sx0kwd62-closure-info.drv
  /nix/store/pv4ibnfdxs7d99f3wlp3vv6d985mz1bl-run-nixos-vm.drv
  /nix/store/ynifm7wa83h7xa9znpa1frm4bjyj921q-nixos-vm.drv
  /nix/store/0pkk2icn5975b45s8zlz47k7yk1k7j79-driverConfiguration.json.drv
  /nix/store/fk7xzcimvrnwzhzqaw23sqskx2rbzlv8-nixos-test-driver-nixos-test-read-proxy.drv
  /nix/store/2zzdcwkih6ajqi8nnrsngpg5wirc028g-vm-test-run-nixos-test-read-proxy.drv