Function runtime_stack_probe_ready 

pub fn runtime_stack_probe_ready<'a>(
    apps: impl IntoIterator<Item = &'a AppRuntime>,
    failed_app_count: usize,
    app_ready: impl FnMut(&'a AppRuntime) -> bool,
) -> bool

Returns true when a loaded runtime stack has no failed apps, at least one app, and every app is ready.