these 2 derivations will be built: /nix/store/80n4ax9mnaj0ar83jbl80y8iz1aypmh7-flake-inputs.drv /nix/store/rj1r5lzs73aq7a7ms7cs587wj2xmckqh-check-flake-inputs.drv building '/nix/store/80n4ax9mnaj0ar83jbl80y8iz1aypmh7-flake-inputs.drv' building '/nix/store/rj1r5lzs73aq7a7ms7cs587wj2xmckqh-check-flake-inputs.drv' upload niks3: ok