these 2 derivations will be built:
  /nix/store/vy40yf985p2wy1p47mfms2xbadwbnfg3-nix-grpc-store-0.2.3.drv
  /nix/store/0sfwbxymbwxcc784jvk6qby6v5aiwav7-nix-grpc-store-exit-stress.drv