mlua 0.12.0-rc.2

High level bindings to Lua 5.5/5.4/5.3/5.2/5.1 (including LuaJIT) and Luau with async/await features and support of writing native Lua modules in Rust.
Documentation 
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error: this reference type is not supported as a callback parameter
 --> tests/compile/userdata_mut_slice_arg.rs:6:27
  |
6 |     fn first(&self, data: &mut [u8]) -> mlua::Result<u8> {
  |                           ^^^^^^^^^