GHSA-2GXJ-QRP2-53JV Incorrect reliance on Trait memory layout in mopa

The mopa crate redefines the deprecated TraitObject struct from core::raw. This is done to then transmute a reference to a trait object &dyn Trait for any trait Trait into this struct and retrieve the data field for the purpose of downcasting. This is used to implement downcastrefunchecked, in...