this derivation will be built: /nix/store/bz9zn4kl4jixxsbqm1pghflahq0dgq4c-bcachefs-module-7.0.0-38-generic.drv building '/nix/store/bz9zn4kl4jixxsbqm1pghflahq0dgq4c-bcachefs-module-7.0.0-38-generic.drv'...