clippy1 no longer fails linting

[radicale]

The relative float_cmp lint has been demoted from the correctness category (default deny) to pedantic (default allow) in the following PR:

rust-lang/rust-clippy#7692

Consequently, the clippy1 exercise doesn't fail linting and leaves the user with nothing to fix. Possible solutions include rewriting the exercise to leverage another lint or adding the -D clippy::float_cmp arguments when invoking clippy.

[radicale]

Or perhaps it would be more appropriate to setup the lints in the source files themselves with something like:
#![deny(clippy::all, clippy::float_cmp)]

[qq8244353]

I was working on the exercise and this problem confused me a lot, so I think it needs to be fixed.
I confirmed attaching the attribute mentioned above to the main function will work, tho I think adding some message in the source code that kindly explains the situation something goes like "This is required because the linter no longer fails due to the recent update" is better.
If you don’t mind, please let me make a pull request with this content.

[hilary]

I came to look at the issues today due to clippy not failing. FWIW, of the options discussed, I like adding

#![deny(clippy::float_cmp)]

best as a quick fix, as it expands on the lesson.

[qq8244353]

Thanks for the advice.
I tried to make a change, but it seems like the exercise we are talking about has been replaced.
And I guess why the merge above doesn't fix the problem is because change has not been implemented to the latest version.

[shadows-withal]

This is a duplicate of #888, which has been closed by #890, which will make it into the next version.