error[E0373]: async block may outlive the current function, but it borrows `room_ref`, which is owned by the current function
  --> $DIR/issue-78938-async-block.rs:8:39
   |
LL |       let gameloop_handle = spawn(async {
   |  _______________________________________^
LL | |         game_loop(Arc::clone(&room_ref))
   | |                               -------- `room_ref` is borrowed here
LL | |     });
   | |_____^ may outlive borrowed value `room_ref`
   |
note: function requires argument type to outlive `'static`
  --> $DIR/issue-78938-async-block.rs:8:33
   |
LL |       let gameloop_handle = spawn(async {
   |  _________________________________^
LL | |         game_loop(Arc::clone(&room_ref))
LL | |     });
   | |_____^
   = note: borrows cannot be held across a yield point, because the stack space of the current function is not preserved
   = help: see https://rust-lang.github.io/async-book/03_async_await/01_chapter.html#awaiting-on-a-multithreaded-executor for more information
help: to force the async block to take ownership of `room_ref` (and any other referenced variables), use the `move` keyword
   |
LL |     let gameloop_handle = spawn(async move {
LL |         game_loop(Arc::clone(&room_ref))
LL |     });
   |

error: aborting due to previous error

For more information about this error, try `rustc --explain E0373`.