these 2 derivations will be built: /nix/store/v72a0s529bp21pky5gpx35zw5n76a6k3-flake-inputs.drv /nix/store/iqpwr6za9zibi5hjx90k7kch3ii17l6r-check-flake-inputs.drv building '/nix/store/v72a0s529bp21pky5gpx35zw5n76a6k3-flake-inputs.drv' building '/nix/store/iqpwr6za9zibi5hjx90k7kch3ii17l6r-check-flake-inputs.drv' upload niks3: ok