these 2 derivations will be built: /nix/store/7051s6qgf1lhqa4f1n6706h7c6xqj1bj-flake-inputs.drv /nix/store/3z2ik4hgrs15yw942055q9k63s8bmskn-check-flake-inputs.drv building '/nix/store/7051s6qgf1lhqa4f1n6706h7c6xqj1bj-flake-inputs.drv' building '/nix/store/3z2ik4hgrs15yw942055q9k63s8bmskn-check-flake-inputs.drv' upload niks3: ok