Tier 1 goal: Test Rust natively on Arm with Travis CI

[hug-dev]

Hi All!

I posted my question about this topic on the Rust forum as well.

In a nutshell, as Travis CI now supports native builds on Arm64, it could be a good opportunity to set up a job on it running Rust CI tests on the aarch64-unknown-linux-gnu target.
If it is possible for Rust CI infrastructure to have both Azure and Travis CI systems and if all tests run successfully on aarch64-unknown-linux-gnu target this could mean the promotion of this target as Tier 1.

@parched also told me that there were other CI systems like codefresh that were offering Arm builds.

Last time I checked, all tests were passing but the variable arguments ones and this is addressed by @parched at rust-lang/rust#62207

[hug-dev]

CC @pietroalbini do you have any opinion on this?

[pietroalbini]

Hello @hug-dev!

We're already talking with people from ARM about promoting aarch64 to Tier 1, but we don't have news to share just yet. Also, having CI available is just a small part of what makes a target tier 1: we had a design meeting a few weeks ago about writing a policy on what's required for a tier 1 promotion, and we expect that policy to be converted into an RFC soon.

[hug-dev]

Great, thanks for the pointers!

[cglong]

Hi @pietroalbini, any updates to share here? 🙂

[pietroalbini]

We're currently investigating setting up CI for AArch64, but there is no official news to share yet.

[hug-dev]

Not needed anymore since aarch64-unknown-linux-gnu is tested on another Arm platform.