these 2 derivations will be built:
  /nix/store/hc90g3j7grqili8vh21338s1rg737kh9-nix-grpc-store-0.2.3.drv
  /nix/store/2gyzm3n98v97sqwh0l1nh3w4wrqzcxs3-nix-grpc-store-exit-stress.drv