Theo-Silfa

Hi! Got same stack tonight: ``` panicked at 'assertion failed: tuples.insert(tuple, incoming.clone()).is_none()', /project/fake-tcp/src/lib.rs:425:13 note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace thread 'tokio-runtime-worker' panicked at 'called `Result::unwrap()` on...