checks 1.0.4

Checks based on https://www.reddit.com/r/rust/comments/gt067a/implementing_a_trait_only_for_types_satisfying_a/
Documentation
Builds

checks's sandbox limits

All the builds on docs.rs are executed inside a sandbox with limited resources. The limits for this crate are the following:

Available RAM 6.44 GB
Maximum rustdoc execution time 15 minutes
Maximum size of a build log 102.4 kB
Network access blocked
Maximum number of build targets 10

If a build fails because it hit one of those limits please open an issue to get them increased.