...
Passed shifter.ys
Passed tribuf.ys
make[1]: Leaving directory '/builddir/build/BUILD/yosys-d4d951657fbf273d58070076009453d541361f92/tests/arch/intel_alm'
cd tests/arch/nexus && bash run-test.sh "-S 314159265359"
make[1]: Entering directory '/builddir/build/BUILD/yosys-d4d951657fbf273d58070076009453d541361f92/tests/arch/nexus'
/usr/include/c++/13/bits/basic_string.h:1305: std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::reference std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::front() [with _CharT = char; _Traits = std::char_traits<char>; _Alloc = std::allocator<char>; reference = char&]: Assertion '!empty()' failed.
make[1]: *** [run-test.mk:6: add_sub.ys] Aborted (core dumped)
make[1]: Leaving directory '/builddir/build/BUILD/yosys-d4d951657fbf273d58070076009453d541361f92/tests/arch/nexus'
make: *** [Makefile:878: test] Error 2