these 15 derivations will be built:
  /nix/store/pv04z9wrazzq5kzkbrklz51ghhzdlrvj-nix-grpc-e2e.drv
  /nix/store/20dr4s0adglslyv2rplgh95hz7k6hi8l-test-script.drv
  /nix/store/9im2wz40m4wspycr0a2dvflksg9f838y-envoy.json.drv
  /nix/store/ndgwrbjl0w68my6pqmpj0r3wj844aws8-validate-envoy-conf.drv
  /nix/store/l1zw18c1smd1iiwslx56qip5wb5r41i9-unit-envoy.service.drv
  /nix/store/3xviy17rcv6727bm3yb6a413nnyjn62g-system-units.drv
  /nix/store/cqijbvv969sjpvfkxigr4c57fng85015-etc.drv
  /nix/store/kk9byx3n2bbgmlgc4vizd87dlpqwxcca-activate.drv
  /nix/store/xa99ssnplhym3pr048kmrnhgspx5m464-nixos-system-lb-test.drv
  /nix/store/pn70iy5m74681jdgk0yb0qqm2bhg58rh-closure-info.drv
  /nix/store/a1zccm6dxlh34d095yw2167mmli7rwyw-run-nixos-vm.drv
  /nix/store/vzsv9l72aim0nb1hcampham3fn8m4zp5-nixos-vm.drv
  /nix/store/g83sh2pbvpqkqlaliqzsq5lxcmjvqjll-driverConfiguration.json.drv
  /nix/store/2kkbwb6pr5zsm4irvmra7xpxbbf4r77r-nixos-test-driver-nix-grpc-farm.drv
  /nix/store/i25v93fiq4np5rnb27df9gpxndvmnlni-vm-test-run-nix-grpc-farm.drv