these 9 derivations will be built:
  /nix/store/kb2ffz4fwwh13q58fwyf0869745vfv93-etc.drv
  /nix/store/ilaq2jsajy1lqs7x6h128hg5rigcs6dk-activate.drv
  /nix/store/sz3h5ia1k2qdzy6cwy185vjrwk30z41r-nixos-system-server-test.drv
  /nix/store/rd38ihfqm3mk6jim0r441n475mr49ixm-nixos-system-server-test.drv
  /nix/store/k422ac1yvij3v60wwc9jfzza02a1lnsw-closure-info.drv
  /nix/store/6mw6nbhr4dnxxdzbq1rkxcmz61gl521s-run-nixos-vm.drv
  /nix/store/r7ahri7c6jsdn2hqy9wqgq4gdw18nhwr-nixos-vm.drv
  /nix/store/zfyx0lfrsasb97lf7fqr6xhj5l2m1iyn-nixos-test-driver-pg_repack.drv
  /nix/store/j8x68qhsi7z1b6pi8nnsqq1s49nmaplg-vm-test-run-pg_repack.drv