How to handle unmaintained serial dependencies?

[flosse]

The issue started here:
serialport-rs uses an outdated (v0.16) nixcrate 😞

And this is the current (2021-11-18) situation:

• serialport-rs is currently not maintained.
• mio-serial is not maintained anymore
• tokio-serial is currently not maintained

This is a first move

• There is a PR to update nix at least to v0.18
• I made a PR to update nix to v0.23.x
• The updates branch @slowtec of serialport-rs has some more updates

[ssnover]

If Slowtec isn't looking to take on indefinite maintenance of serialport-rs, I'd note that it looks like it's maintenance is being carried on here: https://gitlab.com/reconbot/serialport-rs (based on the thread linked). It may be worth making an additional PR to that repo and see if there's a response.

[lindblandro]

The thread now mentions https://github.com/serialport/serialport-rs and that seems fairly active as the most recent commits are from just a few days ago.