these 2 derivations will be built:
  /nix/store/2mrykhlji19799m5cvk3b26d3ii2rqfa-nix-grpc-store-0.1.0-beta.3.drv
  /nix/store/h47df0ngvydxpyyb7xdyxmfnmh3h15jg-nix-grpc-store-exit-stress.drv