Panic in cargo crev verify --show-all

[cehteh]

cargo crev verify --show-all panics in presence of raw C string literals c"like this". Cargo crev will then hang when a tread paniced. The panic is not a direct bug in crev itself, it rather stems from the fact that some of its dependencies (geiger) still use syn 1.x which does not support the new (rust 1.77) C string literal syntax.

Question is how can this handled more graceful?