Fails to compile in a empty project

[josemanuelp]

Issue Report: Compilation Failure with qubit Dependency

Project Setup:
In a minimal "Hello, World" Rust project with only the qubit dependency, the build fails due to missing features in the tower crate.

Steps to Reproduce:

1. Create a new Rust project:

   cargo new hello_world
   cd hello_world

2. Add qubit as a dependency in Cargo.toml:

   [dependencies]
   qubit = "0.10.0"

3. Run cargo build.

Observed Output:
The build fails with the following error messages:

error[E0432]: unresolved import `tower::util`
   --> /path/to/cargo/registry/src/utils.rs:37:12
    |
37  | use tower::util::Oneshot;
    |            ^^^^ could not find `util` in `tower`

error[E0432]: unresolved import `tower::ServiceExt`
   --> /path/to/cargo/registry/src/utils.rs:38:5
    |
38  | use tower::ServiceExt;
    |     ^^^^^^^----------
    |     |      |
    |     |      help: a similar name exists in the module: `Service`
    |     no `ServiceExt` in the root

These errors indicate that tower is attempting to use features that are not enabled by default, such as util.

Temporary Solution:
To resolve the issue temporarily, I added tower as a local dependency to qubit project with the util feature enabled:

cargo add tower --features util

Expected Solution:
For a permanent solution, consider updating the project dependencies so that tower is included with the required features enabled by default.

[andogq]

Is this still an issue that you're facing? I tried following your reproduction steps, however it appears to work for me without the error you're mentioning.

I'm planning on upgrading to a more recent tower version anyway, so that may fix the problem if you're still encountering it!

[andogq]

I take all of that back. It worked completely fine locally for me (even with a clean cache), however started dying in CI for some reason.

paritytech/jsonrpsee#1464 seems similar (and equally confused), but I'll enable the feature for now until jsonrpsee can be upgraded!

[andogq]

[email protected] should now work correctly

[josemanuelp]

Thanks!

And thanks for the great work on this project!