these 2 derivations will be built:
  /nix/store/srgmikhb6wki5lgy4ga63g1jfcz3i6br-nix-grpc-store-0.1.0.drv
  /nix/store/xc0fg81f1am3dc6nk2kiaifjps7mvd7m-nix-grpc-store-exit-stress.drv