this derivation will be built: /nix/store/v8y77zav3q0khv1xfn934zqra9lmlgxw-bcachefs-module-7.0.0-28-generic.drv building '/nix/store/v8y77zav3q0khv1xfn934zqra9lmlgxw-bcachefs-module-7.0.0-28-generic.drv'...