these 2 derivations will be built:
  /nix/store/3v230z2fr6wrlhn134vv6fd2r39841ic-nix-grpc-store-0.1.0-beta.1.drv
  /nix/store/qgb79kv13kqk8k049mkbpk6r7bmkqpyj-nix-grpc-store-dispatcher.drv