this derivation will be built: /nix/store/vkapp1frmi3xa5apayi6fc4ak5jd6gpr-bcachefs-module-7.0.0-39-generic.drv building '/nix/store/vkapp1frmi3xa5apayi6fc4ak5jd6gpr-bcachefs-module-7.0.0-39-generic.drv'...