these 2 derivations will be built:
  /nix/store/n37f7pbmzqii2bbyfjzkwrzpnp2bdan0-nix-grpc-store-0.2.3.drv
  /nix/store/ivvyz4jm5x1rrb3v52a78dnxbcy3m0ic-nix-grpc-store-exit-stress.drv