these 2 derivations will be built:
  /nix/store/qm7vvmbc2v01s84c179ln9l0xbgxlb4z-nix-grpc-store-0.2.3.drv
  /nix/store/dx1alb7k35njh7k690cbb8zgbb68xzzl-nix-grpc-store-exit-stress.drv