spin-rs initialisation failure in `Once::try_call_once` can lead to undefined behaviour for other initialisers

Once::trycallonce is unsound if invoked more than once concurrently and any call fails to initialise successfully...

GHSA-2QV5-7MW5-J3CG spin-rs initialisation failure in `Once::try_call_once` can lead to undefined behaviour for other initialisers

Once::trycallonce is unsound if invoked more than once concurrently and any call fails to initialise successfully...

RUSTSEC-2019-0013 Wrong memory orderings in RwLock potentially violates mutual exclusion

Wrong memory orderings inside the RwLock implementation allow for two writers to acquire the lock at the same time. The drop implementation used Ordering::Relaxed, which allows the compiler or CPU to reorder a mutable access on the locked data after the lock has been yielded. Only users of the...