these 5 derivations will be built:
  /nix/store/20hps1fzpzj6wnpkcv78kaqv9yc4wvjx-nixos-system-server-test.drv
  /nix/store/i657pdi5jdkzaxjj5311hq3x4n8fjkk2-run-nixos-vm.drv
  /nix/store/xvnywk1b4kwlssrsa05iz0yslwgpfz26-nixos-vm.drv
  /nix/store/ihh3nrabkldfi84q74wqk4yfszlkaa6q-nixos-test-driver-amcheck-upgrade.drv
  /nix/store/hki3r05xwwc0k81l92mq2667a2gbp95j-vm-test-run-amcheck-upgrade.drv
this path will be fetched (70.6 KiB download, 385.0 KiB unpacked):
  /nix/store/8yx1d8f6r59d0kh2cdffxx06dhrwv4za-closure-info
don't know how to build these paths:
  /nix/store/vzyvi6s80ms3y4isjjr65fj697qqgjbr-nixos-system-server-test