this derivation will be built: /nix/store/7x5hzhvkkfnpf1qh9fxga7wyi4ww8jc0-bcachefs-module-7.0.0-39-generic.drv building '/nix/store/7x5hzhvkkfnpf1qh9fxga7wyi4ww8jc0-bcachefs-module-7.0.0-39-generic.drv'...