BUG#lib.rs:847:13: unsupported proc macro punctuation character '{'

[jubao4415198]

执行指令： svd2rust -i ./GD32F4xx.svd
1）我用GD32F4xx.svd试了一下，会报这个错误
2）我通过https://github.com/rust-embedded/svd2rust/issues/581中的svd文件再次测试了一下，任然会出现同样的问题。
所以可以排除svd文件的问题。
软件版本：svd2rust v0.33.4
输出如下

[INFO svd2rust] Parsing device from SVD file [INFO svd2rust] Rendering device thread 'main' panicked at /root/.cargo/registry/src/mirrors.ustc.edu.cn-61ef6e0cd06fb9b8/proc-macro2-1.0.87/src/lib.rs:847:13: unsupported proc macro punctuation character '{' note: run withRUST_BACKTRACE=1environment variable to display a backtrace

---

我用二分法排查了一下
似乎只要在xml文件中存在addressOffset标签
<addressOffset>0x4</addressOffset>
就会报这个错误
可能 这个问题与处理addressOffset标签的代码有关？

[jannic]

That's a known issue, see #863.
As a workaround, you can install svd2rust using cargo install svd2rust --locked.

(Edit: At least I hope that's what your report is about. I don't really understand most of the text, but only the error messages.)

[jubao4415198]

非常感谢您，如果您在中国的话 我会请你喝一杯瑞幸