make valgrind TEST_ARGS="--no-fork -l /BulkOperation/opts/collation/multi/w0/wire5"                                                    
MONGOC_TEST_VALGRIND=on /bin/bash ./libtool --mode=execute valgrind --error-exitcode=1 --leak-check=full --suppressions=./valgrind.suppressions ./test-libmongoc --no-fork --no-fork -l /BulkOperation/opts/collation/multi/w0/wire5
==31143== Memcheck, a memory error detector
==31143== Copyright (C) 2002-2015, and GNU GPL'd, by Julian Seward et al.
==31143== Using Valgrind-3.11.0 and LibVEX; rerun with -h for copyright info
==31143== Command: /home/bjori/Sources/mongoc/.libs/lt-test-libmongoc --no-fork --no-fork -l /BulkOperation/opts/collation/multi/w0/wire5
==31143== 
{
  "host": {
    "sysname": "Linux",
    "release": "4.4.0-42-generic",
    "machine": "x86_64",
    "memory": {
      "pagesize": 4096,
      "npages": 16485484
    }
  },
  "auth": { "user": "", "pass": "" }, 
  "addr": { "host": "localhost", "port": 27017, "uri": "" },
  "gssapi": { "host": "", "user": "" }, 
  "uds": "%2Ftmp%2Fmongodb-27017.sock", 
  "SSL": {
    "enabled": false,
    "weak_cert_validation": false,
    "pem_file": "",
    "pem_pwd": "",
    "ca_file": "",
    "ca_dir": "",
    "crl_file": ""
  },
  "framework": {
    "monitoringVerbose": false,
    "mockServerLog": "",
    "futureTimeoutMS": 10000,
    "majorityReadConcern": false,
    "skipLiveTests": false,
    "IPv6": false
  },
  "options": {
    "fork": false,
    "tracing": false
  },
  "results": [
    { "status": "PASS", "test_file": "/BulkOperation/opts/collation/multi/w0/wire5", "seed": "1101136988", "start": 691413.012371874, "end": 691413.817008597, "elapsed": 0.804636723  }
    { "status": "PASS", "test_file": "/BulkOperation/opts/collation/multi/w0/wire5", "seed": "1526420655", "start": 691413.834081100, "end": 691413.953840307, "elapsed": 0.119759207  }
  ]
}
==31143== 
==31143== HEAP SUMMARY:
==31143==     in use at exit: 96,568 bytes in 3,222 blocks
==31143==   total heap usage: 8,246 allocs, 5,024 frees, 7,224,855 bytes allocated
==31143== 
==31143== 256 bytes in 2 blocks are definitely lost in loss record 564 of 610
==31143==    at 0x4C2FB55: calloc (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==31143==    by 0x4E5B2BB: bson_malloc0 (bson-memory.c:105)
==31143==    by 0x4101CD: mock_server_reply_multi (mock-server.c:1724)
==31143==    by 0x40F2DE: mock_server_replies (mock-server.c:1224)
==31143==    by 0x40E7DA: auto_ismaster (mock-server.c:472)
==31143==    by 0x40FF7F: worker_thread (mock-server.c:1656)
==31143==    by 0x5B536F9: start_thread (pthread_create.c:333)
==31143== 
==31143== LEAK SUMMARY:
==31143==    definitely lost: 256 bytes in 2 blocks
==31143==    indirectly lost: 0 bytes in 0 blocks
==31143==      possibly lost: 0 bytes in 0 blocks
==31143==    still reachable: 0 bytes in 0 blocks
==31143==         suppressed: 96,312 bytes in 3,220 blocks
==31143== 

{
   test_framework_reply_leaks
   Memcheck:Leak
   match-leak-kinds: definite
   fun:calloc
   fun:bson_malloc0
   fun:mock_server_reply_multi
}