these 2 derivations will be built:
  /nix/store/5majy034rf2dvdfq08qk2cj8sj07vdym-nix-grpc-store-0.1.0.drv
  /nix/store/a104hb7p57jdlza58vwqfvpvb4wra8ca-nix-grpc-store-exit-stress.drv