these 2 derivations will be built:
  /nix/store/wi587k0x44idbqjwdxzhw2fn6pdl26p8-nix-grpc-store-0.1.0.drv
  /nix/store/1vfflsafp8xlbzx66ld1fm081x4f9kns-nix-grpc-store-exit-stress.drv