More informative warn logs

[skairunner]

Describe the feature request

In poll_for_updates, errors are consumed and a fixed log message is printed instead. For example, if the HTTP request fails it simply prints warn!("poll: failed to retrieve features"). This is unhelpful for debugging. It'd be helpful to print the particulars of the error.

Background

I am currently attempting to use unleash-api-client in a cloud-hosted project. It has started sporadically failing, but without information on the particulars I can't easily debug it.

Solution suggestions

It'd be a case-by-case basis, but generally would just need to include a debug-formatted version of the originating error.

[thomasheartman]

Hey, @skairunner 👋🏼 Thanks for the request and thanks for the proposed changes too ☺️ That sounds like a great suggestion to me, so I'm all for it! But I'll need to align with the rest of the team internally. We should be able to get back to with some more info some time tomorrow at latest, I think. Is that alright? 😄

[skairunner]

Sounds good to me!