enable nightly features

[xlc]

This is required to allow us use resolver 2, which is used by ORML to fix deps resolution issue with dev-dependencies

Let me know if you want me to put this behind a CLI flag or if there is better way to deal with it.

https://github.com/open-web3-stack/open-runtime-module-library/blob/master/Cargo.dev.toml

[gnunicorn]

@xlc is this function available for non-nightly build?

[xlc]

I guess so. This is available on cargo crate 0.50.0 without any additional feature flag. I don't even sure what is the right way to use a nightly build of the cargo crate

[Xanewok]

The v2 resolver is now stabilised via rust-lang/cargo#8997. @xlc would it be feasible to wait until the relevant cargo is published and updated?

[xlc]

Yes we are currently just using our own fork so we can wait.