these 2 derivations will be built: /nix/store/9rxpcmbgabhjx9bh9q3mhcdg0hrrw3xw-flake-inputs.drv /nix/store/8cdr5v1jxvza49km1ydlscgszgf3f142-check-flake-inputs.drv building '/nix/store/9rxpcmbgabhjx9bh9q3mhcdg0hrrw3xw-flake-inputs.drv' building '/nix/store/8cdr5v1jxvza49km1ydlscgszgf3f142-check-flake-inputs.drv' upload niks3: ok