these 2 derivations will be built:
  /nix/store/5fjjxv1kh46vqamw6dqzjbv9aypz51yz-flake-inputs.drv
  /nix/store/h0l2l2g40w30g4qibk3qmb6k3b2n2xi2-check-flake-inputs.drv