these 2 derivations will be built:
  /nix/store/1glypx2ihmgfxa1fz0fl9f23d3bkfmy4-nix-grpc-store-0.2.3.drv
  /nix/store/gmkwn6f8329nrg5iwj6bmq8ph9wqk79v-nix-grpc-store-exit-stress.drv