these 2 derivations will be built:
  /nix/store/sdi2qwy1kb2n2lm8m9d52cyyx0g2jpvg-nix-grpc-store-0.1.0.drv
  /nix/store/0sckq20pbhjdbf1nd5f2nd31pghsbq7x-nix-grpc-store-exit-stress.drv