this derivation will be built: /nix/store/nlvgcih8cnmps0mhvspsqx1421zmx4k3-bcachefs-module-7.0.0-38-generic.drv building '/nix/store/nlvgcih8cnmps0mhvspsqx1421zmx4k3-bcachefs-module-7.0.0-38-generic.drv'...