See if we can update :)

[LucioFranco]

Motivation

Solution

[taiki-e]

@LucioFranco I think this blocked on rust-lang/rust#63316

[LucioFranco]

@taiki-e ah yup just checked the toolchain state, we can wait. I assume we will publish the alphas on futures alpha 17 with old nightly. Then we can release another with those both updated, does that sound like a good plan to you?

Gonna close this.

[taiki-e]

I think rust-lang/futures-rs#1676 is the only change that affects tokio at now. However, if rust-lang/futures-rs#1753 merged, publish the alphas will be blocked on rust-lang/rust#63316 (rust-lang/futures-rs#1753 increases the minimum required nightly version of futures-preview to 2019-07-29.).

[LucioFranco]

@taiki-e yeah, I think those things we can support in the next alpha. So I think we will ship with 17 support today and the current toolchain. Then 18 we can update to new futures release and a newer version of rustc/rustfmt.