Function spawn_unchecked

pub(in ::thread) unsafe fn spawn_unchecked<'scope, F, T>(name: Option<String>, stack_size: Option<usize>, no_hooks: bool, scope_data: Option<Arc<ScopeData>>, f: F) -> Result<JoinInner<'scope, T>>
where
    F: FnOnce() -> T + Send,
    T: Send,