======================================================================
FAIL: test_down_at_bottom (test.test_gdb.StackNavigationTests)
Verify handling of "py-down" at the bottom of the stack
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Traceback (most recent call last):
  File "/home/test/Python-2.7.15/Lib/test/test_gdb.py", line 708, in test_down_at_bottom
    cmds_after_breakpoint=['py-down'])
  File "/home/test/Python-2.7.15/Lib/test/test_gdb.py", line 221, in get_stack_trace
    self.assertEqual(unexpected_errlines, [])
AssertionError: Lists differ: ['Cannot create process: Opera... != []

First list contains 4 additional elements.
First extra element 0:
'Cannot create process: Operation not permitted'

+ []
- ['Cannot create process: Operation not permitted',
-  'During startup program exited with code 127.',
-  "Python Exception <class 'gdb.error'> No frame is currently selected.: ",
-  'Error occurred in Python command: No frame is currently selected.']

----------------------------------------------------------------------
Ran 49 tests in 0.170s

FAILED (failures=1, skipped=48)
test test_gdb failed -- Traceback (most recent call last):
  File "/home/test/Python-2.7.15/Lib/test/test_gdb.py", line 708, in test_down_at_bottom
    cmds_after_breakpoint=['py-down'])
  File "/home/test/Python-2.7.15/Lib/test/test_gdb.py", line 221, in get_stack_trace
    self.assertEqual(unexpected_errlines, [])
AssertionError: Lists differ: ['Cannot create process: Opera... != []

First list contains 4 additional elements.
First extra element 0:
'Cannot create process: Operation not permitted'

+ []
- ['Cannot create process: Operation not permitted',
-  'During startup program exited with code 127.',
-  "Python Exception <class 'gdb.error'> No frame is currently selected.: ",
-  'Error occurred in Python command: No frame is currently selected.']

1 test failed:
    test_gdb