The GSSAPI test has started failing. The first failure is here:
https://evergreen.mongodb.com/version/mongo_c_driver_f4e0214e8b52759527bbb3d97dc63a722a720e0a
Seems caused by that commit, indeed: that commit altered the code path that mongoc-ping.c uses to run a command, and the test uses mongoc-ping.c to test GSSAPI auth.
I'm commenting-out the test in run-auth-tests.sh, uncomment it once this is fixed.
It only crashes on Linux when SASL is enabled, and both SSL and automatic cleanup are disabled. The configure line is like:
cmake -DENABLE_SSL=OFF -DENABLE_AUTOMATIC_INIT_AND_CLEANUP=OFF .