Unable to build docs for bcardiff/crystal-db shard

[bcardiff]

the page http://docrystal.org/github.com/bcardiff/crystal-db/master/index.html says please wait for a few hours.

First I try to build docrystal with this commit crystal-lang/crystal-db@71629f2 (or a previous one) and I get a compiler exception regarding undefined Statement constant.

This make me think that docrystal runs maybe an outdated crystal version because locally it builds, specs run and doc can be built.

Despite that, I added some forward declarations in crystal-lang/crystal-db@6ee8c90 , perform another request and wait for some hours before submitting this.

Maybe the server just had a hiccup?
Is crystal kept up to date automatically?