File "src/sage/schemes/cyclic_covers/charpoly_frobenius.py", line 146, in sage.schemes.cyclic_covers.charpoly_frobenius.charpoly_frobenius
Failed example:
    charpoly_frobenius(M,
    [31, 30, 29, 28, 27, 26, 25, 24, 23, 22, 21, 20, 19, 18, 17, 16,
     15, 14, 13, 12] + [11]*21, 1129, 1, 1)
Exception raised:
    Traceback (most recent call last):
      File "/home/runner/work/sage/sage/src/sage/doctest/forker.py", line 712, in _run
        self.compile_and_execute(example, compiler, test.globs)
      File "/home/runner/work/sage/sage/src/sage/doctest/forker.py", line 1147, in compile_and_execute
        exec(compiled, globs)
      File "<doctest sage.schemes.cyclic_covers.charpoly_frobenius.charpoly_frobenius[17]>", line 1, in <module>
        charpoly_frobenius(M,
      File "/home/runner/work/sage/sage/src/sage/schemes/cyclic_covers/charpoly_frobenius.py", line 206, in charpoly_frobenius
        assert cp[-1] == 1
    AssertionError