these 2 derivations will be built:
  /nix/store/mak6rwp7ir6nc1yd3m2nk2kaz04r2qzl-nix-grpc-store-0.1.0.drv
  /nix/store/abny0l8kscmnjbawjz2l8hax0br6vp4n-nix-grpc-store-exit-stress.drv