these 2 derivations will be built:
  /nix/store/g1gv85vir85lzx0v3mwsvvzvxbpjwgvn-nix-grpc-store-0.2.3.drv
  /nix/store/59s1rwwxm9sddlwm9bmbwr6l559ldia6-nix-grpc-store-exit-stress.drv