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#![unstable(
    feature = "rt",
    reason = "this public module should not exist and is highly likely \
              to disappear",
    issue = "none"
)]
#![doc(hidden)]
pub use crate::panicking::{begin_panic, begin_panic_fmt, update_panic_count};
#[cfg(not(test))]
fn lang_start_internal(
    main: &(dyn Fn() -> i32 + Sync + crate::panic::RefUnwindSafe),
    argc: isize,
    argv: *const *const u8,
) -> isize {
    use crate::panic;
    use crate::sys;
    use crate::sys_common;
    use crate::sys_common::thread_info;
    use crate::thread::Thread;
    sys::init();
    unsafe {
        let main_guard = sys::thread::guard::init();
        sys::stack_overflow::init();
        
        
        
        
        let thread = Thread::new(Some("main".to_owned()));
        thread_info::set(main_guard, thread);
        
        sys::args::init(argc, argv);
        
        let exit_code = panic::catch_unwind(|| {
            sys_common::backtrace::__rust_begin_short_backtrace(move || main())
        });
        sys_common::cleanup();
        exit_code.unwrap_or(101) as isize
    }
}
#[cfg(not(test))]
#[lang = "start"]
fn lang_start<T: crate::process::Termination + 'static>(
    main: fn() -> T,
    argc: isize,
    argv: *const *const u8,
) -> isize {
    lang_start_internal(&move || main().report(), argc, argv)
}