this derivation will be built: /nix/store/897qy2xsyc79p4qvgc7ngxhdmvks69zq-bcachefs-module-7.0.0-38-generic.drv building '/nix/store/897qy2xsyc79p4qvgc7ngxhdmvks69zq-bcachefs-module-7.0.0-38-generic.drv'...