these 2 derivations will be built:
  /nix/store/0kpcjjnvqmnyqaq40ycadhyq34jsc95g-nixos-test-driver-pgjwt.drv
  /nix/store/10a7zrpdhxpg7mcp7rb7n9jszwq15nqk-vm-test-run-pgjwt.drv