these 3 derivations will be built:
  /nix/store/gj2wn73ir7w2l0s29pz4p1drl26qqr7z-driverConfiguration.json.drv
  /nix/store/z6y24p936wjj32byvgks1ck3rdcld6d8-nixos-test-driver-nix-grpc-store-main.drv
  /nix/store/2yx7sl1zijy0m491vajb55hq0yid6jj7-vm-test-run-nix-grpc-store-main.drv