these 2 derivations will be built:
  /nix/store/2527qr8pbfgg1hs9c6pf1xb1i0zy8as6-nix-grpc-store-0.2.3.drv
  /nix/store/ar7xzvppwk6qhbz6272xdcd355q2yqx1-nix-grpc-store-exit-stress.drv