New comment by dkwo on void-packages repository

https://github.com/void-linux/void-packages/pull/34030#issuecomment-1000486115

Comment:
I agree about jupyterlab.

I did manage to compile with debug, as you suggested.
With gdb installed, I get
```
$ sage-9.5.beta8_1 -t --all
no stored timings available
Running doctests with ID 2021-12-23-20-18-29-7fa0c985.
Git branch: develop
Using --optional=build,dochtml,pip,sage,sage.geometry.polyhedron,sage.rings.real_double,sage_spkg,void
Doctesting entire Sage library.
Doctesting 4410 files.
Traceback (most recent call last):
  File "/usr/lib/sage-9.5.beta8/src/bin/sage-runtests", line 155, in <module>
    err = DC.run()
  File "/usr/lib/sage-9.5.beta8/local/var/lib/sage/venv-python3.10/lib/python3.10/site-packages/sage/doctest/control.py", line 1257, in run
    self.run_doctests()
  File "/usr/lib/sage-9.5.beta8/local/var/lib/sage/venv-python3.10/lib/python3.10/site-packages/sage/doctest/control.py", line 954, in run_doctests
    self.dispatcher = DocTestDispatcher(self)
  File "/usr/lib/sage-9.5.beta8/local/var/lib/sage/venv-python3.10/lib/python3.10/site-packages/sage/doctest/forker.py", line 1614, in __init__
    init_sage(controller)
  File "/usr/lib/sage-9.5.beta8/local/var/lib/sage/venv-python3.10/lib/python3.10/site-packages/sage/doctest/forker.py", line 224, in init_sage
    import sympy
  File "/usr/lib/sage-9.5.beta8/local/var/lib/sage/venv-python3.10/lib/python3.10/site-packages/sympy/__init__.py", line 22, in <module>
    import mpmath
  File "/usr/lib/sage-9.5.beta8/local/var/lib/sage/venv-python3.10/lib/python3.10/site-packages/mpmath/__init__.py", line 5, in <module>
    from .ctx_fp import FPContext
  File "/usr/lib/sage-9.5.beta8/local/var/lib/sage/venv-python3.10/lib/python3.10/site-packages/mpmath/ctx_fp.py", line 1, in <module>
    from .ctx_base import StandardBaseContext
  File "/usr/lib/sage-9.5.beta8/local/var/lib/sage/venv-python3.10/lib/python3.10/site-packages/mpmath/ctx_base.py", line 3, in <module>
    from .libmp.backend import xrange
  File "/usr/lib/sage-9.5.beta8/local/var/lib/sage/venv-python3.10/lib/python3.10/site-packages/mpmath/libmp/__init__.py", line 40, in <module>
    from .libhyper import (NoConvergence, make_hyp_summator,
  File "/usr/lib/sage-9.5.beta8/local/var/lib/sage/venv-python3.10/lib/python3.10/site-packages/mpmath/libmp/libhyper.py", line 41, in <module>
    from .gammazeta import mpf_gamma_int, mpf_euler, euler_fixed
  File "/usr/lib/sage-9.5.beta8/local/var/lib/sage/venv-python3.10/lib/python3.10/site-packages/mpmath/libmp/gammazeta.py", line 1371, in <module>
    small_factorial_cache = [from_int(ifac(n)) for \
  File "/usr/lib/sage-9.5.beta8/local/var/lib/sage/venv-python3.10/lib/python3.10/site-packages/mpmath/libmp/gammazeta.py", line 1371, in <listcomp>
    small_factorial_cache = [from_int(ifac(n)) for \
  File "/usr/lib/sage-9.5.beta8/local/var/lib/sage/venv-python3.10/lib/python3.10/site-packages/mpmath/libmp/libintmath.py", line 387, in <lambda>
    ifac = lambda n: int(sage.factorial(n))
  File "sage/symbolic/function.pyx", line 1026, in sage.symbolic.function.BuiltinFunction.__call__ (build/cythonized/sage/symbolic/function.c:10701)
  File "sage/rings/integer.pyx", line 4478, in sage.rings.integer.Integer.factorial (build/cythonized/sage/rings/integer.c:29386)
cysignals.signals.SignalError: Segmentation fault
------------------------------------------------------------------------
Unhandled SIGSEGV: A segmentation fault occurred.
This probably occurred because a *compiled* module has a bug
in it and is not properly wrapped with sig_on(), sig_off().
Python will now terminate.
------------------------------------------------------------------------
Segmentation fault
```
Not sure if this is more informative.