As far as "concerns" go these are not even allegations, these are rumors and slanders. There has never been even one shred of evidence that Huawei have done that.
> "any organization or citizen shall support, assist and cooperate with the state intelligence work in accordance with the law”
> “when the state security organ investigates and understands the situation of espionage and collects relevant evidence, the relevant organizations and individuals shall provide it truthfully and may not refuse.”
Furthermore, the CCP has a long track record of detaining anyone they want for whatever reason they choose. The idea that Huawei's executives could resist such an order is ludicrous.
However, it seems likely that in the case of Rust, Huawei's ability to anything nefarious would be negligible.