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Somehow I decide to use #Rust rather than #Zig to implement Apache Arrow data type because Rust support multivalue return. However it can only return up to 2 value. And unlike Zig, Rust wasm can't emit nor import mutable-globals 
. The `static mut` variables are stored in wasm linear memory instead of being `global mut`.
If my guess is correct, `static mut` should be wrapped in `thread_local` macro to produce #wasm mutable-globals. But… it's not yet supported 
I wonder if it's possible to link both wasm files produced by zig and rust 
So treat *.wasm as *.o and statically link those wasm via wasm-ld or whatever.