this derivation will be built: /nix/store/add77nkmawxfzsswv7bvvqxn67abch8q-bcachefs-module-7.0.0-29-generic.drv building '/nix/store/add77nkmawxfzsswv7bvvqxn67abch8q-bcachefs-module-7.0.0-29-generic.drv'...