JIT CI is broken due to `test_traceback` & `test_tracemalloc`

[nineteendo]

Looks like something broke: https://github.com/python/cpython/actions/runs/8823706356/job/24224733399#step:8:9723

======================================================================
FAIL: test_env_var_invalid (test.test_tracemalloc.TestCommandLine.test_env_var_invalid) (nframe=-1)
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Traceback (most recent call last):
  File "/home/runner/work/cpython/cpython/Lib/test/test_tracemalloc.py", line 957, in test_env_var_invalid
    self.check_env_var_invalid(nframe)
    ~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^
  File "/home/runner/work/cpython/cpython/Lib/test/test_tracemalloc.py", line 951, in check_env_var_invalid
    self.fail(f"unexpected output: {stderr!a}")
    ~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
AssertionError: unexpected output: b"aarch64-binfmt-P: Could not open '/lib/ld-linux-aarch64.so.1': No such file or directory\n"

======================================================================
FAIL: test_env_var_invalid (test.test_tracemalloc.TestCommandLine.test_env_var_invalid) (nframe=1073741824)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/home/runner/work/cpython/cpython/Lib/test/test_tracemalloc.py", line 957, in test_env_var_invalid
    self.check_env_var_invalid(nframe)
    ~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^
  File "/home/runner/work/cpython/cpython/Lib/test/test_tracemalloc.py", line 951, in check_env_var_invalid
    self.fail(f"unexpected output: {stderr!a}")
    ~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
AssertionError: unexpected output: b"aarch64-binfmt-P: Could not open '/lib/ld-linux-aarch64.so.1': No such file or directory\n"

======================================================================
ERROR: test_encoded_file (test.test_traceback.TracebackCases.test_encoded_file)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/home/runner/work/cpython/cpython/Lib/test/test_traceback.py", line 439, in test_encoded_file
    do_test("", "foo", "ascii", 3)
    ~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/runner/work/cpython/cpython/Lib/test/test_traceback.py", line 428, in do_test
    self.assertIn(("line %s" % lineno), stdout[1],
                                        ~~~~~~^^^
IndexError: list index out of range

----------------------------------------------------------------------

[hugovk]

See also #117672 (comment) and #112730 (comment).

[nineteendo]

Do we disable these tests like #118247?

[hugovk]

Maybe, let's see if someone can fix the root cause first. The JIT is experimental and the CI is allowed to fail, it's mainly an annoyance when it does.

[mdboom]

Cc: @brandtbucher

[brandtbucher]

Maybe, let's see if someone can fix the root cause first. The JIT is experimental and the CI is allowed to fail, it's mainly an annoyance when it does.

Agreed. Since it's affecting others (not just the JIT emulation) it is probably worth actually fixing or handling more generally.

[brandtbucher]

Perhaps the tests could just patch the desired environment variables instead of wiping them out completely?

[savannahostrowski]

I think that this is now fixed as I don't see the failures anymore on CI runs. I think that #118288 fixed things up.