these 2 derivations will be built:
  /nix/store/bkrd3bc6jm4wk3xjp9b7papajdiyzqfs-nix-grpc-store-0.2.3.drv
  /nix/store/n89sap3b9hr8kchvmv4rc62smcw4r2zw-nix-grpc-store-exit-stress.drv