Invalid type derivation about sidekiq.cr

[mperham]

@jhass @asterite Any ideas? If you have sidekiq.cr locally, just do this:

git pull
git co json_mapping
make

[asterite]

Sidekiq::JobProxy#retry returns this

[asterite]

I'm thinking of ways to improve the error message, but it's hard. Basically retry got that type from that method and it was passed to a method. Traces are already very long.

The way I found the error was:

1. The compiler seems to believe retry has a type I didn't expect
2. Is retry redefined in Job, or any subclass of Job redefines this method?
3. Found Sidekiq::JobProxy#retry returning the result of an each method.

[mperham]

Thanks, that was it. Now I seem to have an infinite loop. Is it possible to dump a current backtrace when running crystal spec?

[mperham]

crystal spec -v gave me the hint I needed.