these 2 derivations will be built: /nix/store/i52d39krd83f1v7jbmx0nbxmxg70v6ck-flake-inputs.drv /nix/store/jik2bpmvz6rd8cvjjy71vgsyhqwwycfh-check-flake-inputs.drv building '/nix/store/i52d39krd83f1v7jbmx0nbxmxg70v6ck-flake-inputs.drv' building '/nix/store/jik2bpmvz6rd8cvjjy71vgsyhqwwycfh-check-flake-inputs.drv' upload niks3: ok