these 5 derivations will be built:
  /nix/store/zv2b290k9m77zjsdgqbxyrxqf3pfiay1-nixos-system-machine4-test.drv
  /nix/store/p206n14852rik199xnnv97axs2rh5fmf-closure-info.drv
  /nix/store/wdd3f1bsi6nbbbnldmla1l4mpq5nqzhl-closure-info.drv
  /nix/store/2875vg7z3knwz7h938vwlh8vfkpnzgix-nixos-test-driver-syncthing-service.drv
  /nix/store/qpli640v8l9y6qwf0fv27w7jq45mlak1-container-test-run-syncthing-service.drv