WIP: Simultaneous tasks

[Kern046]

No description provided.

[lilymonad]

The problem with the actix::actor::Actor trait is because you are using 2 different versions of actix lib. 0.10.0 as is required by actix_web-3.3.*, and 0.12.0 as you asked it in Cargo.toml

[lilymonad]

forget everything i may have said about sqlx if you read it ^^

The problem with sqlx is updating it from 0.3 to 0.5. sqlx does not follow the semantic versioning scheme (MAJOR.MINOR.FIX), and the developer introduced breaking changes between these 2 versions. We will need to refactor a lot of code if we want to update the dependency. So we either update it now, or we rollback to 0.3