Rationale behind warning for examples and tests in cargo publish

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When running cargo publish in a crate that has examples or tests, and explicitly lists what to include in package.include (and doesn't list examples or tests, but only /src/), one gets the following warnings:

warning: ignoring example `hello` as `examples/hello.rs` is not included in the published package
warning: ignoring test `spec` as `tests/spec.rs` is not included in the published package

  1. What's the rationale behind those warnings?

  2. How do I disable them? I tried to specify --lib to say that I only want to publish the library, but it's not recognized.

Thanks!

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They used to be errors. The rationale of downgrading them to warnings is discussed in the PR that made the change.

You can add the -q/--quiet flag to suppress log messages in general. Or use --no-verify, which will skip the verification step, where the warning stems from.

Note that the warning only applies to explicit targets (that you defined in your Cargo.toml as i.e. [[test]] or [[example]]) that are excluded. Maybe you could avoid making your test and example targets explicit, that would also remove the warning.

1 Like
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Thanks a lot for the link!

That's not a satisfiable workaround, in particular now that I figured out it's a regression. I've created Regression showing warnings for implicit tests and examples on cargo package/publish · Issue #14290 · rust-lang/cargo · GitHub.

Thanks! That was the part I was missing to figure out something's wrong and it's likely a regression. Because I don't have any [[test]] or [[example]] in my Cargo.toml. The warnings are about implicit targets.

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