this derivation will be built: /nix/store/9pqp7imy9x3dq07i7xaf5cnvdnbdw6ak-bcachefs-module-7.0.0-39-generic.drv building '/nix/store/9pqp7imy9x3dq07i7xaf5cnvdnbdw6ak-bcachefs-module-7.0.0-39-generic.drv'...