[   96s] =================================== FAILURES ===================================
[   96s] _____________________ tests/sample_notebook.ipynb::Cell 9 ______________________
[   96s] Notebook cell execution failed
[   96s] Cell 9: Cell outputs differ
[   96s] 
[   96s] Input:
[   96s] %matplotlib inline
[   96s] import matplotlib.pyplot as plt
[   96s] plt.plot([1, 2, 3, 4, 5], [1, 3, 2, 2.5, 1.5], 'o-', label='graph')
[   96s] plt.xlabel('x')
[   96s] plt.ylabel('y')
[   96s] plt.title('Simple plot')
[   96s] plt.legend(loc='best')
[   96s] 
[   96s] Traceback:
[   96s]  mismatch 'text/plain'
[   96s] 
[   96s]  assert reference_output == test_output failed:
[   96s] 
[   96s]   '<Figure size... with 1 Axes>' == '<Figure size... with 1 Axes>'
[   96s]   - <Figure size 640x480 with 1 Axes>
[   96s]   ?              - ^ ^ ^
[   96s]   + <Figure size 432x288 with 1 Axes>
[   96s]   ?               ^^ ^ ^
[   96s] 
[   96s] =============================== warnings summary ===============================