Igel 2.7.0 build heavily uses AVX2 instructions and your CPU does not support it hence it crashes. I did not produce official builds other than AVX2 because older CPUs running SSE4.1 and AVX have shown performance degradation in my testing.
For people willing to use Igel for fun (like peter) I produced a private build using compile for a specific CPU architecture (westmere) but as you can understand I cannot release this version to the public because it only works good with westmere cpus.
I could produce a working solution for Ray (yet) because gcc8 I use does not have a good support for amd profiles for his cpu.