these 2 derivations will be built:
  /nix/store/sg7gh2n95lds0arwhnp4nssr6wvnk4fn-nix-grpc-store-0.2.3.drv
  /nix/store/2xa25c4mzkvd0qzqnl0brj6r1clhyqxz-nix-grpc-store-exit-stress.drv