these 2 derivations will be built:
  /nix/store/v95s2jb3ag1d4fb0g2s7vr5p29gsncij-nix-grpc-store-0.2.3.drv
  /nix/store/psfjl2vql0yd27xyyjyy6rqz9mlahgnk-nix-grpc-store-exit-stress.drv