This is an auto-filled bug because dev-python/colorspacious fails tests (hang).
The issue was originally discovered on x86, but it may be reproducible on other arches as well.
If you think that a different summary clarifies the issue better, feel free to change it.
Attached build log and emerge --info.
I had to kill the process.
Created attachment 638084 [details]
build log and emerge --info
Could you try again? I've added '-v' to nosetests, so the log might be more useful. However, I suspect this is some problem inside numpy.
Closing bugs that don't clearly indicate applicable version. Assuming a new one will be open if the issue persists.