Use provide_any feature in error-stack

[TimDiekmann]

🌟 What is the purpose of this PR?

When error-stack was released, the provide_any feature has not landed on nightly yet.

🔗 Related links

• Asana task (internal)

🚫 Blocked by

• Bump Rust toolchain to nightly-2022-06-26 #696

🔍 What does this change?

• Remove provider and use core::any instead

📜 Does this require a change to the docs?

• The documentation has been adjusted to point to core::any instead

[Alfred-Mountfield]

Can we generally just do a quick ctrl + f for all occurrences of provider and make sure they're not disclaimers about stuff we've included, etc. (Did we mention it in the README for example)

Then happy to approve

[Alfred-Mountfield]

Is this still needed?

[TimDiekmann]

This was only used in the above comment. If it would have been needed, the docs-test would fail.

[Alfred-Mountfield]

I'm on about the the [Provider API] link, not the removed line for error_stack::provider. I don't think docs-tests would fail if you add an unused link?

[TimDiekmann]

Oh, sure. Yes, this is already used in the first paragraph of the section:

//! This crate uses the [`Provider` API] to provide arbitrary data. This can be done either by
//! [`attach`]ing them to a [`Report`] or by providing it directly when implementing [`Context`].
//! The blanket implementation of [`Context`] for [`Error`] will provide the [`Backtrace`] to be
//! requested later.

No, it won't complain if you add unused links (sadly) 😢

[Alfred-Mountfield]

Gotcha, GitHub wasn't letting me see the above code even when I clicked on the expand button :(

[TimDiekmann]

Can we generally just do a quick ctrl + f for all occurrences of provider and make sure they're not disclaimers about stuff we've included, etc. (Did we mention it in the README for example)

Already did that when updating the docs

Then happy to approve

You already have approved.

[Alfred-Mountfield]

You already have approved.

I changed it to comment when I clicked submit Review but GitHub decided to ignore me

[Alfred-Mountfield]

🎉