Start testing: Oct 22 18:35 CEST
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1/1 Testing: rkward-core_test
1/1 Test: rkward-core_test
Command: "/var/tmp/portage/sci-mathematics/rkward-0.7.5/work/rkward-0.7.5_build/rkward/autotests/core_test"
Directory: /var/tmp/portage/sci-mathematics/rkward-0.7.5/work/rkward-0.7.5_build/rkward/autotests
"rkward-core_test" start time: Oct 22 18:35 CEST
Output:
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qt.qpa.xcb: could not connect to display 
qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "" even though it was found.
This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem.

Available platform plugins are: minimal, offscreen, xcb.

<end of output>
Test time =   0.08 sec
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Test Failed.
"rkward-core_test" end time: Oct 22 18:35 CEST
"rkward-core_test" time elapsed: 00:00:00
----------------------------------------------------------

End testing: Oct 22 18:35 CEST