Use example.rs specific Cargo.toml file during CI

[ijanos]

Add support for optional Cargo-example.toml files to satisfy the CI and do not pollute the empty project config file. See discussion in #225

One thing I could not figure out though: where is it defined what files the CLI tool will download? Do I have to modify anything else to prevent the download of Cargo-examle.toml?

[petertseng]

Thanks. I think this is exactly what we want. I am still traveling, so take the opinion with a grain of salt, but the change is small enough that I can feel pretty confident.

[petertseng]

One thing I could not figure out though: where is it defined what files the CLI tool will download? Do I have to modify anything else to prevent the download of Cargo-examle.toml?

This is all that is necessary. It just needs to have example in its path. This is defined in https://github.com/exercism/trackler/blob/master/lib/trackler/implementation.rb#L9 .

@kytrinyx , I've heard this question twice already, and I wonder if others will have it too. any place where we can make the answer more visible?

[IanWhitney]

Nice. Thanks much, @ijanos!