these 2 derivations will be built:
  /nix/store/sk87mhnmh6fx859jy6d85lkhksa4fhpj-nix-grpc-store-0.1.0-beta.4.drv
  /nix/store/jicxnxg5kzk4ph23dxkrdkzj33is7d2f-nix-grpc-store-exit-stress.drv