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:8:33 | 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: async blocks are not executed immediately and must either take a reference or ownership of outside variables they use 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 { | ++++ error: aborting due to previous error For more information about this error, try `rustc --explain E0373`.