New comment by tornaria on void-packages repository

https://github.com/void-linux/void-packages/pull/39876#issuecomment-1295901019

Comment:
I'm not sure what  went wrong with i686. All started with
```
sage -t --warn-long 30.0 --random-seed=0 /builddir/sage-9.7/pkgs/sagemath-standard/build/lib.linux-x86_64-cpython-310/sage/manifolds/differentiable/pseudo_riemannian_submanifold.py
**********************************************************************
File "/builddir/sage-9.7/pkgs/sagemath-standard/build/lib.linux-x86_64-cpython-310/sage/manifolds/differentiable/pseudo_riemannian_submanifold.py", line 26, in sage.manifolds.differentiable.pseudo_riemannian_submanifold
Failed example:
    E.<w,x,y> = M.chart()
Exception raised:
    Traceback (most recent call last):
      File "sage/symbolic/expression.pyx", line 13959, in sage.symbolic.expression.send_sage_domain_to_maxima (build/cythonized/sage/symbolic/expression.cpp:104209)
        assume(v, 'real')
      File "/builddir/sage-9.7/pkgs/sagemath-standard/build/lib.linux-x86_64-cpython-310/sage/symbolic/assumptions.py", line 676, in assume
        x.assume()
      File "/builddir/sage-9.7/pkgs/sagemath-standard/build/lib.linux-x86_64-cpython-310/sage/symbolic/assumptions.py", line 249, in assume
        self._validate_feature()
      File "/builddir/sage-9.7/pkgs/sagemath-standard/build/lib.linux-x86_64-cpython-310/sage/symbolic/assumptions.py", line 219, in _validate_feature
        _valid_feature_strings.update(repr(x).strip() for x in list(maxima("features")))
      File "sage/misc/lazy_import.pyx", line 391, in sage.misc.lazy_import.LazyImport.__call__ (build/cythonized/sage/misc/lazy_import.c:4393)
        return self.get_object()(*args, **kwds)
      File "sage/misc/lazy_import.pyx", line 216, in sage.misc.lazy_import.LazyImport.get_object (build/cythonized/sage/misc/lazy_import.c:2674)
        return self._get_object()
      File "sage/misc/lazy_import.pyx", line 252, in sage.misc.lazy_import.LazyImport._get_object (build/cythonized/sage/misc/lazy_import.c:2998)
        self._object = getattr(__import__(self._module, {}, {}, [self._name]), self._name)
      File "/builddir/sage-9.7/pkgs/sagemath-standard/build/lib.linux-x86_64-cpython-310/sage/interfaces/maxima_lib.py", line 119, in <module>
        ecl_eval("(set-pathnames)")
      File "sage/libs/ecl.pyx", line 1352, in sage.libs.ecl.ecl_eval (build/cythonized/sage/libs/ecl.c:10922)
        cpdef EclObject ecl_eval(str s):
      File "sage/libs/ecl.pyx", line 1375, in sage.libs.ecl.ecl_eval (build/cythonized/sage/libs/ecl.c:10855)
        o=ecl_safe_eval(python_to_ecl(s, True))
      File "sage/libs/ecl.pyx", line 321, in sage.libs.ecl.ecl_safe_eval (build/cythonized/sage/libs/ecl.c:5637)
        raise RuntimeError("ECL says: {}".format(message))
    RuntimeError: ECL says: Could not create directory "/tmp/.sage/maxima/binary"
    C library error: "File exists"
```
Probably a race condition, since CI is doctesting using 2 threads. More doctest failures after this are all caused by `E` not being defined, etc.

I don't think we should delay this PR for this (maybe someone can restart that test to be sure).