Update crates.io

[dr-bonez]

I'm looking into using rust in the 2020 season and it looks like this crate is many months out of date on crates.io. Is master in a stable state? Can we have the latest stable version published to crates.io?

[auscompgeek]

Is master in a stable state?

I would personally say no:

• there are a couple of outstanding PRs with deliberate breaking changes (on top of already breaking changes)
• master currently builds against an outdated version of the WPILib HAL

I would personally like to see #70 merged in, at minimum, before a new release is made.

[Lytigas]

I definitely agree with @auscompgeek, master is not stable. I want to add that there are plans to make a release for 2020, work is happening on that now. As of right now, we are working on fixing some interfaces and updating to the 2020 images, which means people not in the FRC beta won't be able to use the latest version. So, @dr-bonez, if you want to experiment with Rust before the 2020 season, v0.4.0 is very usable. Here's the setup my team used in 2019, which should build with no extra work outside of the setup described in the READMEs here.

[dependencies]
wpilib = "0.4.0"
ctre = { git = "https://github.com/Lytigas/ctre-rs.git", branch = "2019-cargo" }

We used a small fork of ctre-rs to make the build process easier for us, work which will have an equivalent upstream before 2020.