To complete my comment #18 The problem is not specific to gcc5: === This failure was on worker: build95 started "build findutils.spec" at Thu Jun 18 05:30:02 UTC 2015. [104/115] cumulate gcc-5-1.59 While the initial failure was on worker: build96 started "build findutils.spec" at Fri Mar 20 17:16:42 UTC 2015. [98/109] cumulate gcc-4.8-12.3 ===