these 6 derivations will be built:
  /nix/store/myd0fwx8da8hyibz9837hjj46dzmwn32-nixos-system-server-test.drv
  /nix/store/spj3h6pyih37qszl900x6vcd4q9swrw4-closure-info.drv
  /nix/store/n24ighjjp0917mwa2ilflksanvlcqfzs-run-nixos-vm.drv
  /nix/store/lnb53d5pql1bzr6m6318qn3gwpr56xs8-nixos-vm.drv
  /nix/store/2fafkxgq7lh4npic8nwfk6w4jzc2db6p-nixos-test-driver-pgjwt.drv
  /nix/store/irydnpdah87c3g8723ds290fg1a0c9za-vm-test-run-pgjwt.drv