Problem: raco test is not run on Travis/Hydra

[clacke]

Solution: Make jobs in release.nix that run this.

You need to run raco test modules/rkt/rkt-fbp/agents to run the racket tests. (or racket -l- raco test ...)

For raco test to be a thing, you need to depend on compiler-lib so that raco knows what test is. But that's still not enough, because of fractalide/racket2nix#78 .