these 4 derivations will be built:
  /nix/store/1xkcb8q28fdp3n5v7vy20ryhz659j2gv-ubuntu-26.04-server-cloudimg-amd64.img-nix-vm-test.qcow2.drv
  /nix/store/bm39m7gidm2shf8zdb5gw9flwhwmwpay-run-vm-vm.drv
  /nix/store/nr6h460i55cxmfzx5fpa57m8p4w5cn61-driver-configuration.json.drv
  /nix/store/9j0zkq6b5sh4950sja4mimmv19031mm5-vm-test-ubuntu_26_04.drv