OpenCV 3.0.0-dev "Core_globbing" failure

edit savecancel

I compiled opencv 3.0.0-dev from github.com/Itseez/opencv/archive/master.zip on my Raspberry Pi model A (ARMv6, 256M RAM). It took approximately 10 hours. Running bin/opencv_test_core I see many results report "OK" but there is a failure with "Core_globbing". What does this mean?

[----------] 1 test from Core_globbing
[ RUN      ] Core_globbing.accuracy
/mnt/USB1/opencv-master/modules/core/test/test_io.cpp:501: Failure
Expected: (lenas.size()) > (pngLenas.size()), actual: 0 vs 0
[  FAILED  ] Core_globbing.accuracy (11 ms)
[----------] 1 test from Core_globbing (17 ms total)