issues due to new project structure

[ritchie46]

I think we need to revert the new project structure until these problems are solved.

Currently there are 2 problems.

1. the build.rs file isn't applied anymore. Local pre-commit will fail because of new lints. They are somehow not triggered in CI.
2. The integation tests fail locally, but not in CI. cargo t --features=test --test=it has failed tests locally that were not happening before.

I think those changes are related to the new structure.

@stinodego, tuning you in here.

[stinodego]

I'll take a look at these, thanks. Just revert for now!

[ritchie46]

No opposition. If the issues are resolved happy to gor forward with this.

[stinodego]

The reason for the discrepancy between clippy in the CI and locally is because the CI runs clippy with default features on stable. Locally it now runs clippy with default features on nightly. So there's the issue.

Looking into build.rs atm.

[stinodego]

I believe this can now be closed.

The reason for these issues popping up is that we're now operating on a Cargo workspace instead of on a single crate in a Cargo workspace. There are a few things to iron out still, I'll keep working on those. Feel free to tag me in this issue if you run into anything.