these 2 derivations will be built:
  /nix/store/yka0b92vw7hjkvw8lb5qn3ixp4n0iz3b-nix-grpc-store-0.1.0-beta.3.drv
  /nix/store/vvp82m6y1m501s7ramp2zclvsply0sh7-nix-grpc-store-exit-stress.drv