platform linux -- Python 3.6.13, pytest-4.3.0, py-1.8.0, pluggy-0.9.0
collected 13 items

test_iostream.py ............Unhandled exception:
    @     0x56342edd799c  TerminateHandler()
    @     0x56342f361198  std::__terminate()
    @     0x56342f3610a5  std::terminate()
    @     0x7f49b460ca7b  pybind11::scoped_ostream_redirect::~scoped_ostream_redirect()
    @     0x7f49b460fc13  std::__u::unique_ptr<>::reset()
    @     0x7f49b4611492  pybind11::detail::OstreamRedirect::exit()
    @     0x7f49b46113e5  pybind11::detail::argument_loader<>::call_impl<>()
    @     0x7f49b4610f8b  pybind11::detail::argument_loader<>::call<>()
    @     0x7f49b4610d3b  pybind11::cpp_function::initialize<>()::{lambda()#1}::operator()()
    @     0x7f49b4610c14  pybind11::cpp_function::initialize<>()::{lambda()#1}::__invoke()
    @     0x7f49b40efad4  pybind11::cpp_function::dispatcher()
    @     0x56342ec06b13  _PyCFunction_FastCallDict
    @     0x56342eb6ae3b  _PyObject_FastCallDict
    @     0x56342eb6b196  _PyObject_Call_Prepend
    @     0x56342eb6adb4  _PyObject_FastCallDict
    @     0x56342eb6275c  PyObject_CallFunctionObjArgs
    @     0x56342ed18c85  _PyEval_EvalFrameDefault
    @     0x56342ed257ea  _PyEval_EvalCodeWithName
    @     0x56342ed0d244  PyEval_EvalCodeEx
    @     0x56342ebd1a45  function_call
    @     0x56342eb6a979  PyObject_Call
    @     0x56342ed1964a  _PyEval_EvalFrameDefault
    @     0x56342ed257ea  _PyEval_EvalCodeWithName
    @     0x56342ed0d244  PyEval_EvalCodeEx
    @     0x56342ebd1a45  function_call
    @     0x56342eb6a979  PyObject_Call
    @     0x56342ed1964a  _PyEval_EvalFrameDefault
    @     0x56342ed257ea  _PyEval_EvalCodeWithName
    @     0x56342ed270c7  fast_function
    @     0x56342ed24490  call_function
    @     0x56342ed19315  _PyEval_EvalFrameDefault
    @     0x56342ed257ea  _PyEval_EvalCodeWithName
    @     0x56342ed270c7  fast_function
    @     0x56342ed24490  call_function
    @     0x56342ed19c39  _PyEval_EvalFrameDefault
    @     0x56342ed279a0  _PyFunction_FastCall
    @     0x56342ed24490  call_function
    @     0x56342ed19c39  _PyEval_EvalFrameDefault
    @     0x56342ed257ea  _PyEval_EvalCodeWithName
    @     0x56342ed2761d  _PyFunction_FastCallDict
    @     0x56342eb6ae28  _PyObject_FastCallDict
    @     0x56342eb6b196  _PyObject_Call_Prepend
    @     0x56342eb6a979  PyObject_Call
    @     0x56342ec3f8c2  slot_tp_call
    @     0x56342eb6adb4  _PyObject_FastCallDict
    @     0x56342eb6b8aa  _PyObject_FastCallKeywords
    @     0x56342ed24303  call_function
    @     0x56342ed19315  _PyEval_EvalFrameDefault
    @     0x56342ed279a0  _PyFunction_FastCall
    @     0x56342ed24490  call_function
    @     0x56342ed19c39  _PyEval_EvalFrameDefault
    @     0x56342ed257ea  _PyEval_EvalCodeWithName
    @     0x56342ed0d244  PyEval_EvalCodeEx
    @     0x56342ebd1a45  function_call
    @     0x56342eb6a979  PyObject_Call
    @     0x56342ed1964a  _PyEval_EvalFrameDefault
    @     0x56342ed257ea  _PyEval_EvalCodeWithName
    @     0x56342ed270c7  fast_function
    @     0x56342ed24490  call_function
    @     0x56342ed19315  _PyEval_EvalFrameDefault
    @     0x56342ed257ea  _PyEval_EvalCodeWithName
    @     0x56342ed270c7  fast_function
    @     0x56342ed24490  call_function
    @     0x56342ed19c39  _PyEval_EvalFrameDefault
libc++abi: terminating with uncaught exception of type std::runtime_error: Could not allocate string object!
*** SIGABRT received by PID 3472 (TID 3472) on cpu 74 from PID 3472; ***
Fatal Python error: Aborted

Current thread 0x00007f49bd832b80 (most recent call first):
  File "pybind11/tests/test_iostream.py", line 241 in test_threading
  File "py/_pytest/python.py", line 166 in pytest_pyfunc_call
  File "py/pluggy/callers.py", line 187 in _multicall
  File "py/pluggy/manager.py", line 62 in <lambda>
  File "py/pluggy/manager.py", line 68 in _hookexec
  File "py/pluggy/hooks.py", line 289 in __call__
  File "py/_pytest/python.py", line 1456 in runtest
  File "py/_pytest/runner.py", line 123 in pytest_runtest_call
  File "py/pluggy/callers.py", line 187 in _multicall
  File "py/pluggy/manager.py", line 62 in <lambda>
  File "py/pluggy/manager.py", line 68 in _hookexec
  File "py/pluggy/hooks.py", line 289 in __call__
  File "py/_pytest/runner.py", line 198 in <lambda>
  File "py/_pytest/runner.py", line 226 in from_call
  File "py/_pytest/runner.py", line 198 in call_runtest_hook
  File "py/_pytest/runner.py", line 173 in call_and_report
  File "py/_pytest/runner.py", line 93 in runtestprotocol
  File "py/_pytest/runner.py", line 78 in pytest_runtest_protocol
  File "py/pluggy/callers.py", line 187 in _multicall
  File "py/pluggy/manager.py", line 62 in <lambda>
  File "py/pluggy/manager.py", line 68 in _hookexec
  File "py/pluggy/hooks.py", line 289 in __call__
  File "py/_pytest/main.py", line 271 in pytest_runtestloop
  File "py/pluggy/callers.py", line 187 in _multicall
  File "py/pluggy/manager.py", line 62 in <lambda>
  File "py/pluggy/manager.py", line 68 in _hookexec
  File "py/pluggy/hooks.py", line 289 in __call__
  File "py/_pytest/main.py", line 250 in _main
  File "py/_pytest/main.py", line 210 in wrap_session
  File "py/_pytest/main.py", line 243 in pytest_cmdline_main
  File "py/pluggy/callers.py", line 187 in _multicall
  File "py/pluggy/manager.py", line 62 in <lambda>
  File "py/pluggy/manager.py", line 68 in _hookexec
  File "py/pluggy/hooks.py", line 289 in __call__
  File "py/_pytest/config/__init__.py", line 80 in main
  File "pybind11/tests/blaze_pytest_test_iostream.py", line 48 in main
  File "py/absl/app.py", line 393 in _run_main
  File "py/absl/app.py", line 467 in run
  File "pybind11/tests/blaze_pytest_test_iostream.py", line 51 in <module>
  File "<embedded module '_launcher'>", line 39 in _run_code_in_main
  File "<embedded module '_launcher'>", line 165 in run_filename_as_main