these 2 derivations will be built:
  /nix/store/y5gm5lhsbc7q9h7byr8vn43ars9v2fln-flake-inputs.drv
  /nix/store/62bvpxkms7p7p1s7pafqn1qzxw7yp3jn-check-flake-inputs.drv