Currently the files are named something like:

debugger_mongos_12139.log

If, for example, 6 tests did not complete, you will have (at least) 6 such files.

Once you find the tests that did not complete, you don't have an easy way to correlate which hang analyzer files go with which tests.

You can do it by searching for the PID in the file name (e.g., 12139 in the above example) in the test logs for each failed test.

It'd be nice if the file name just included which test it matches with, e.g.:

debugger_bulk_shard_insert_js_mongos_12139.log