See https://apps.fedoraproject.org/koschei/package/mongo-c-driver

error: Failed to receive length header from server.
FAIL

Assert Failure: 3 == 2
/builddir/build/BUILD/mongo-c-driver-1.13.0/src/libmongoc/tests/test-mongoc-async.c:73 test_ismaster_helper()
{ "status": "FAIL", "test_file": "/Async/ismaster_ssl", "seed": "4075364019", "start": 1927.665743, "end": 1927.717326, "elapsed": 0.051583 },

/builddir/build/BUILD/mongo-c-driver-1.13.0/src/libmongoc/tests/mock_server/mock-server.c:1918 _mock_server_reply_with_stream(): precondition failed: n_written == expected
{ "status": "FAIL", "test_file": "/Client/ssl_opts/copies_single", "seed": "1348030844", "start": 1969.900057, "end": 1969.932482, "elapsed": 0.032425 },

/builddir/build/BUILD/mongo-c-driver-1.13.0/src/libmongoc/tests/mock_server/mock-server.c:1918 _mock_server_reply_with_stream(): precondition failed: n_written == expected
{ "status": "FAIL", "test_file": "/Client/ssl_opts/copies_pooled", "seed": "3111671023", "start": 1969.932542, "end": 1970.476470, "elapsed": 0.543928 },

/builddir/build/BUILD/mongo-c-driver-1.13.0/src/libmongoc/tests/test-mongoc-client.c:2793 _cmd(): precondition failed: request
{ "status": "FAIL", "test_file": "/Client/ssl/reconnect/single", "seed": "4131135309", "start": 1970.476539, "end": 1980.511182, "elapsed": 10.034643 },

/builddir/build/BUILD/mongo-c-driver-1.13.0/src/libmongoc/tests/mock_server/mock-server.c:1918 _mock_server_reply_with_stream(): precondition failed: n_written == expected
{ "status": "FAIL", "test_file": "/Client/ssl/reconnect/pooled", "seed": "2546724188", "start": 1980.511246, "end": 1980.550429, "elapsed": 0.039183 },

scanner error: Failed to receive length header from server.
{ "status": "FAIL", "test_file": "/TOPOLOGY/scanner_ssl", "seed": "3927626548", "start": 2120.362617, "end": 2120.406044, "elapsed": 0.043427 },