Upgrade async runtime dependencies (tokio 1.0, actix-rt 2.0.0-beta.2)

[jplatte]

@seryl @ant32 I took your git identity from the respective previous commits and used them for Co-authored-by. Let me know if this is okay for you / whether you want me to remove your email address (that's already public but not on the GitHub web interface otherwise) or anything like that.

Supersedes #794.

[jplatte]

Please consider also merging #976 before the next release 🙂

[ant32]

@jplatte yes you can gladly use my work here and add my email address. I see you did a much better job and am enjoying looking at how you did things differently.

[seryl]

@jplatte I'm on the same page, glad someone was able to take this to completion.

You're more than welcome to use my work and add my email address.

[ant32]

actix-rt 2.0.0-beta.2 is out. Maybe the dependency could be updated.

[rich-murphey]

Wow, upgrading to this was as easy as changing dependencies. Kudos!

[HTGAzureX1212]

I am currently working on a Discord bot and it uses tokio 1.0 I am really looking forward to this PR merged!

[dfioravanti]

I was wondering if there a rough timeline about when will this be merged? I am building an app to learn tokio and rust and I would really like to use sqlx. I absolutely understand that this is not a small change but are we talking about days/weeks/months?

[jplatte]

From my experience, I'd expect this to be either reviewed or merged in the coming days.

[dfioravanti]

Sorry, let me rephrase. I know they are working on 0.5 which include some significant changes. Will this be available as 0.4.3, which does not follow semver as it would probably break everything that relies on tokio <0.3 or do we need to wait until 0.5?

[jplatte]

No, this will be in 0.5, the big API changes are going to be in 0.6. @mehcode you may want to update the title of #909 🙂

[dfioravanti]

Cool, thanks for letting us know =)

[BlackHoleFox]

This is much nicer then what I had stashed locally, well done :D Looking forward to this merging.