Eike reported here that nightly builds have been a lot slower at running tests for a few weeks.
The time it takes to run cmake ../CMake/Tests/COnly on my Linux machine went from 0.8 to 1.8 seconds.
This problem bisects to commit c4b4d8b3 from !2465 (merged).
To enable design management, you'll need to meet the requirements. If you need help, reach out to our support team for assistance.