[ENHANCEMENT] Migration to tokio 1.0

[krojew]

Is your feature request related to a problem? Please describe.
Since tokio 0.3 was released, it would be great to migrate, otherwise it's necessary to wrap each future in a compatibility layer.

Describe the solution you'd like
Migration to tokio 0.3. Any dependencies can be wrapped in a compatibility layer until they get updated too.

Describe alternatives you've considered
tokio-compat-02 crate.

Additional context
https://tokio.rs/blog/2020-10-tokio-0-3

EDIT: Should now update to tokio 1.0

[fteychene]

I tried to upgrade to tokio 0.3 and updated the code to make it build on a local branch.

The main struggle point on this migration is that we use hyper servers during tests runtime and reqwest for calling servers.
Theses two libs still doesn't migrated to tokio 0.3 ATM.

Hyper server is failing because wanting to get the current Handle with tokio 2 that is not populated with tokio 3 and reqwest use hyper under the hood.

Hyper migrated to tokio 3 in their master 0.14 dev branch, we just need to wait their migrations.

[russcam]

Thanks for the investigation, @fteychene - sounds like we need to wait for the moment. Would be happy to accept a PR for the migration, once it's possible.

[krojew]

reqwest got updated to tokio 1.0. It would be nice to update here, when they publish new crate.

[swallez]

@krojew we need support of Tokio 1.0 in reqwest. Indeed this has been merged but not yet included in a released.

[swallez]

And here it is, reqwest 0.11.0 was just released, based on Tokio 1.0. We can work on the migration.

[Jasperav]

Any update on the migration?