these 2 derivations will be built: /nix/store/sycrbyq50abz3pmp8ncypk0dji7w1i5f-flake-inputs.drv /nix/store/d4p5adqa8v776w9l73vhwsnbyxfhjzr6-check-flake-inputs.drv building '/nix/store/sycrbyq50abz3pmp8ncypk0dji7w1i5f-flake-inputs.drv' building '/nix/store/d4p5adqa8v776w9l73vhwsnbyxfhjzr6-check-flake-inputs.drv' upload niks3: ok