RUSTSEC-2020-0134: parc: `LockWeak` allows to create data race to `T`.

Description

In the affected versions of this crate, LockWeak<T> unconditionally implemented Send with no trait bounds on T. LockWeak<T> doesn’t own T and only provides &T.

This allows concurrent access to a non-Sync T, which can cause undefined behavior like data races.

More Info

https://github.com/hyyking/rustracts/pull/6

Patched Versions