spin does not compile

Throws errors like:

```
error[E0599]: no method named `compare_and_swap` found for type `core::sync::atomic::AtomicBool` in the current scope
   --> .cargo/registry/src/github.com-1ecc6299db9ec823/spin-0.4.8/src/mutex.rs:164:25
    |
164 |         while self.lock.compare_and_swap(false, true, Ordering::Acquire) != false
    |
````