1   0x7f7d746fecb9 WTFCrash
2   0x55b59a7d9e69 /app/webkit/WebKitBuild/Release/bin/WebKitTestRunner(+0xe7e69) [0x55b59a7d9e69]
3   0x55b59a7fd1af /app/webkit/WebKitBuild/Release/bin/WebKitTestRunner(+0x10b1af) [0x55b59a7fd1af]
4   0x7f7d732b4674 /app/webkit/WebKitBuild/Release/lib/libWPEWebKit-2.0.so.1(+0x23ae674) [0x7f7d732b4674]
5   0x7f7d1fbac027 [0x7f7d1fbac027]