Example output from running `import matplotlib; 1/0`, before and after the change:
```diff
--- tmp/before 2025-03-28 03:34:06.633689552 +0000
+++ tmp/after 2025-03-28 03:34:37.268688891 +0000
@@ -1,6 +1,5 @@
-Matplotlib created a temporary cache directory at /tmp/codejail-hveq16ah/tmp/matplotlib-tv0c_vzt because the default path (/home/sandbox/.config/matplotlib) is not a writable directory; it is highly recommended to set the MPLCONFIGDIR environment variable to a writable directory, in particular to speed up the import of Matplotlib and to better support multiprocessing.
Traceback (most recent call last):
File "jailed_code", line 19, in <module>
exec(code, g_dict)
File "<string>", line 1, in <module>
ZeroDivisionError: division by zero
```
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