maintainance

[dvc94ch]

The codebase seems quite dated, some maintainance tasks after a quick look would be:

• update dependencies
• migrate to new futures
• support async-std
• use thiserror

[povilasb]

Agreed, personally I don't have time to spare.
Feel free to tackle those ;)

[dvc94ch]

I ended up starting from scratch as I felt it could be written more concisely and slightly better organized with less dependencies and less unsafe code. It's strongly inspired by this crate and I'm successfully using it to debug nat traversal issues.

https://github.com/ipfs-rust/netsim-embed