nvcc has halting problem on UnitTestBoundingIntervalHierarchy

Compiling UnitTestBoundingIntervalHierarchy.cu fails for me by never terminating (on renar and on a fedora docker image) after 20+ minutes of compile time. It appears that nvcc spawns ptxas which consumes CPU time (100% of 1 thread) but does not appear to make progress.

Perhaps the test should be disabled? Perhaps we should file a bug against cuda 9.2?