error[E0277]: the type `UnsafeCell<mlua::lua::ExtraData>` may contain interior mutability and a reference may not be safely transferrable across a catch_unwind boundary
 --> tests/compile/lua_norefunwindsafe.rs:7:18
  |
7 |     catch_unwind(|| lua.create_table().unwrap());
  |     ------------ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `UnsafeCell<mlua::lua::ExtraData>` may contain interior mutability and a reference may not be safely transferrable across a catch_unwind boundary
  |     |
  |     required by a bound introduced by this call
  |
  = help: within `Lua`, the trait `RefUnwindSafe` is not implemented for `UnsafeCell<mlua::lua::ExtraData>`
note: required because it appears within the type `ArcInner<UnsafeCell<ExtraData>>`
 --> $RUST/alloc/src/sync.rs
  |
  | struct ArcInner<T: ?Sized> {
  |        ^^^^^^^^
note: required because it appears within the type `PhantomData<ArcInner<UnsafeCell<ExtraData>>>`
 --> $RUST/core/src/marker.rs
  |
  | pub struct PhantomData<T: ?Sized>;
  |            ^^^^^^^^^^^
note: required because it appears within the type `Arc<UnsafeCell<ExtraData>>`
 --> $RUST/alloc/src/sync.rs
  |
  | pub struct Arc<
  |            ^^^
note: required because it appears within the type `LuaInner`
 --> src/lua.rs
  |
  | pub struct LuaInner {
  |            ^^^^^^^^
note: required because it appears within the type `ArcInner<LuaInner>`
 --> $RUST/alloc/src/sync.rs
  |
  | struct ArcInner<T: ?Sized> {
  |        ^^^^^^^^
note: required because it appears within the type `PhantomData<ArcInner<LuaInner>>`
 --> $RUST/core/src/marker.rs
  |
  | pub struct PhantomData<T: ?Sized>;
  |            ^^^^^^^^^^^
note: required because it appears within the type `Arc<LuaInner>`
 --> $RUST/alloc/src/sync.rs
  |
  | pub struct Arc<
  |            ^^^
note: required because it appears within the type `Lua`
 --> src/lua.rs
  |
  | pub struct Lua(Arc<LuaInner>);
  |            ^^^
  = note: required for `&Lua` to implement `UnwindSafe`
note: required because it's used within this closure
 --> tests/compile/lua_norefunwindsafe.rs:7:18
  |
7 |     catch_unwind(|| lua.create_table().unwrap());
  |                  ^^
note: required by a bound in `catch_unwind`
 --> $RUST/std/src/panic.rs
  |
  | pub fn catch_unwind<F: FnOnce() -> R + UnwindSafe, R>(f: F) -> Result<R> {
  |                                        ^^^^^^^^^^ required by this bound in `catch_unwind`