this derivation will be built: /nix/store/h5kflpix3ax0klc4l8yq42c7yw5c6ry6-bcachefs-module-7.0.0-38-generic.drv building '/nix/store/h5kflpix3ax0klc4l8yq42c7yw5c6ry6-bcachefs-module-7.0.0-38-generic.drv'...