pub fn try_unwrap(this: Self) -> Result<T, Self> {
        if this.inner().strong.compare_exchange(1, 0, Relaxed, Relaxed).is_err() {
            return Err(this);
        }

        acquire!(this.inner().strong);

        unsafe {
            let elem = ptr::read(&this.ptr.as_ref().data);

            // Make a weak pointer to clean up the implicit strong-weak reference
            let _weak = Weak { ptr: this.ptr };
            mem::forget(this);

            Ok(elem)
        }
    }
Converts to `Arc<T>`.

# Safety

As with [`MaybeUninit::assume_init`],
it is up to the caller to guarantee that the inner value
benchmarks/haystacks/code/rust-library.rs