these 2 derivations will be built:
  /nix/store/1janiqvbxjrg12v9yabnrb7vv3m6v4cg-nix-grpc-store-0.2.3.drv
  /nix/store/9chyw6g4y3948i0zc5fdgnaf0hanhgi2-nix-grpc-store-exit-stress.drv