813c1ddcd0
- Also upgrade reqwest - Switch to `tokio::runtime::Builder::new_single_thread()` because `tokio::runtime::Runtime::new()` changed it's behavior to create a multithreaded runtime. - `enable_all` enables time and io resource drivers as explained [here](https://docs.rs/tokio/0.2.24/tokio/runtime/index.html#resource-drivers)