How to control features in crate_universe for all crates?

This one is a challenge and probably has some additional neuances

Lets say we have a `crate.spec` like so:

```python
"reqwest": crate.spec(
version = "=0.12.*",
default_features = False,
features = [
"blocking",
"json",
"rustls-tls",
"gzip",
"brotli",
"deflate",
],
),
```

A developer later adds a dependency that depends (potentially indirectly) on `reqwest` say `rustify`.

`rustify` pulls in `reqwest` with `default_features` (or conflicting features)

We then end up with a dependency graph like so:


which is problematic given that is not what was specified in the deps, and seems to be counter to what cargo.toml does