sage -t --long --random-seed=321172385432269463934777057410284981568 src/sage/rings/polynomial/multi_polynomial_ring_base.pyx
**********************************************************************
File "src/sage/rings/polynomial/multi_polynomial_ring_base.pyx", line 994, in sage.rings.polynomial.multi_polynomial_ring_base.MPolynomialRing_base.random_element
Failed example:
    len(list(f))
Expected:
    1
Got:
    0

sage -t --long --random-seed=324642231642420052385517156149041216749 src/sage/dynamics/arithmetic_dynamics/projective_ds.py
**********************************************************************
File "src/sage/dynamics/arithmetic_dynamics/projective_ds.py", line 7076, in sage.dynamics.arithmetic_dynamics.projective_ds.?.conjugating_set
Failed example:
    D6.conjugating_set(D6)
Expected:
    [
    [1 0]  [0 1]  [0 2]  [4 0]  [2 0]  [0 4]
    [0 1], [1 0], [1 0], [0 1], [0 1], [1 0]
    ]
Got:
    [
    [4 0]  [2 0]  [0 4]  [1 0]  [0 1]  [0 2]
    [0 1], [0 1], [1 0], [0 1], [1 0], [1 0]
    ]