Unsound usage of MaybeUninit
The use of MaybeUninit in the Xdr impl for fixed-size arrays causes immediate undefined behavior: https://git.rwth-aachen.de/acs/public/virtualization/rpc-lib/rpc-lib/-/blob/3411a610859f5ccad759f9a861980fafa7a56c17/src/rpc_struct/xdr.rs#L33