these 2 derivations will be built:
  /nix/store/mkk315vyh3qy2gqhf3x6hl0xjp0j6nx8-nix-grpc-store-0.2.3.drv
  /nix/store/lydi1c19xwyp9wqqgsykjcl5hg2qmckb-nix-grpc-store-exit-stress.drv