Custom error logging

[brendanzab]

We should allow folks to log failed requests in their preferred way, be it printf, slog, or something else...

[somehowchris]

How about tracing? It has a lot of adapters i.e. for log

[somehowchris]

@felipenoris There are some internal messages via tracing, so its up to the lib implementer on how to handle the logs and how he uses the returned types