Thread-safe object pools for Rust.
```rust
use swimmer::Pool;
let pool: Pool<String> = Pool::with_size(10);
assert_eq!(pool.size(), 10);
let value = pool.get()
assert_eq!(pool.size(), 9);
assert_eq!(*value, "");
drop(value);
// Value is returned to pool
assert_eq!(pool.size(), 10);
```
See the [documentation](https://docs.rs/swimmer) for more.