these 2 derivations will be built:
  /nix/store/q04cly02nm22vb64h098ww6jllc32q4c-nix-grpc-store-0.1.0.drv
  /nix/store/9jksidniq01bxk39k2zra3zmm7x1mp3b-nix-grpc-store-exit-stress.drv