pub trait u128x4<M: Machine>:
    BitOps128
    + Store<vec512_storage>
    + Vec4<M::u128x1>
    + MultiLane<[M::u128x1; 4]>
    + Swap64
    + Into<vec512_storage> { }Dyn Compatibility§
This trait is not dyn compatible.
In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.