Add the linebender lint set

[PoignardAzur]

We should add a standardized set of rustc lints and clippy lints to all our projects. If we raise MSRV to 1.74, we can add them directly to Cargo.toml.

See zulip discussion for what our lint set should be. See linebender/peniko#47 for our current lint set.

Aside from the Cargo.toml lints, we should also add the following annotation to our crate root:

#![warn(clippy::print_stdout, clippy::print_stderr, clippy::dbg_macro)]

(We don't want a workspace-level lints for those because we want to tolerate prints in tests and examples.)

See this zulip thread for details.

We should add the following annotation at the crate roots:

We should also remove leftover prints, if any, or give them an opt-out.

[PoignardAzur]

See linebender/linebender.github.io#68

[0xdevcollins]

Hi @PoignardAzur, Could I be assigned to this task?

[waywardmonkeys]

@devcollinss No one is currently working on this, so feel free to submit self-contained patches for the various lints.

I have some reservations about some of the lints, so if something is a big change, feel free to talk with us about it!

Maybe a good structure is a draft PR that has a lot of commits in it so that we can review them separately but still squash it down when it is ready to hit main?

[0xdevcollins]

@PoignardAzur I just made a draft PR #391

[xStrom]

If we raise MSRV to 1.74, we can add them directly to Cargo.toml.

We don't need to raise the MSRV to add them to Cargo.toml. Older toolchains will just issue a warning and that is fine. The warning does not trigger if Kurbo is used as a dependency.