these 2 derivations will be built:
  /nix/store/g2f9qyfc2d1p1bfwnpvip0rnsvnwwv20-nix-grpc-store-0.1.0.drv
  /nix/store/832vigxv216ns76m84g4b0ixvgm1w02s-nix-grpc-store-exit-stress.drv