Deno: Tokio 0.2 upgrade

[bartlomieju]

Opening for tracking purposes.

I'm trying to update Deno to Tokio master branch (pending 0.2 release).

For know it seems we have two dependencies blocking the transition:

• tokio-rustls - resources: clientTlsStream, serverTlsStream
• reqwest - resource: httpBody

Problems are related to AsyncRead/AsyncWrite traits as well as fact that we create tls connections from TcpStream which is incompatible with master branch.

These two dependencies are in already in alpha (just like tokio) so I expect they should be release one after another in short period.

[bartlomieju]

Tokio has landed! https://github.com/tokio-rs/tokio/releases/tag/tokio-0.2.0

I'll be working on the upgrade

[bartlomieju]

tokio-rustls landed with Tokio 0.2 support.

Still waiting on https://github.com/seanmonstar/reqwest/issues/721

[kellytk]

@bartlomieju Reqwest has been updated.

[bartlomieju]

@bartlomieju Reqwest has been updated.

Yes, I'm still waiting on release, but I guess I can use git rev until then

[bartlomieju]

Done in #3418!