building cffi for arm64-v8a报错及找不到‘setuptools_rust‘模块

一、building cffi for arm64-v8a报错：

 c/_cffi_backend.c:407:23: error: lvalue required as left operand of assignment
           Py_REFCNT(ct) = 43;
                         ^
  c/_cffi_backend.c:410:23: error: lvalue required as left operand of assignment
           Py_REFCNT(ct) = 0;

开始以为是cython问题

        尝试了：

        cython3、

        cython0.29.24、

        cython0.29.33

pip install cython3

经过cython版本多次尝试无果

又怀疑是cffi库的原因

pip install cffi

但是依然没有帮助</