Fix warnings in testcrate

Author: khvzak

testcrate/src/lib.rs

@@ -1,9 +1,9 @@
 #![allow(clippy::missing_safety_doc)]
+#![allow(non_snake_case, non_camel_case_types)]
 
 use std::os::raw::{c_char, c_int, c_long, c_void};
 
 #[repr(C)]
-#[allow(non_snake_case, non_camel_case_types)]
 pub struct lua_CompileOptions {
     optimizationLevel: c_int,
     debugLevel: c_int,