Affected versions of this crate unconditionally implements
This allows users to insert
T: !Sync to
Bunch<T>. It is possible to create a data race to a
T: !Sync by invoking the
Bunch::get() API (which returns
&T) from multiple threads. It is also possible to send
T: !Send to other threads by inserting
Bunch<T> and sending
Bunch<T> to another thread, allowing to create a data race by inserting types like
T = Rc<_>.
Such data races can lead to memory corruption.