these 2 derivations will be built:
  /nix/store/masypi3mzaqrr3nd5aqdclr48pyg1nhw-nix-grpc-store-0.2.3.drv
  /nix/store/45kpw4dwl7fhnkw1swbz77jfkdwpavq5-nix-grpc-store-exit-stress.drv