error[E0752]: `#[start]` function is not allowed to be `async` --> $DIR/issue-68523-start.rs:6:1 | LL | pub async fn start(_: isize, _: *const *const u8) -> isize { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `#[start]` is not allowed to be `async` error: aborting due to previous error For more information about this error, try `rustc --explain E0752`.