==19022== Memcheck, a memory error detector
==19022== Copyright (C) 2002-2009, and GNU GPL'd, by Julian Seward et al.
==19022== Using Valgrind-3.5.0 and LibVEX; rerun with -h for copyright info
==19022== Command: ./mongo-leak
==19022== 
status -1, last_error: 11000, last_error_str: E11000 duplicate key error index: yambing.test.$_id_  dup key: { : ObjectId('4fcfaa6a195b8f72bca9d637') }
id saved: 4fcfaa6a195b8f72bca9d637
==19022== 
==19022== HEAP SUMMARY:
==19022==     in use at exit: 167 bytes in 1 blocks
==19022==   total heap usage: 67 allocs, 66 frees, 5,188 bytes allocated
==19022== 
==19022== 167 bytes in 1 blocks are definitely lost in loss record 1 of 1
==19022==    at 0x400677E: malloc (vg_replace_malloc.c:195)
==19022==    by 0x4010264: bson_malloc (bson.c:982)
==19022==    by 0x40102FF: bson_init_size (bson.c:620)
==19022==    by 0x4016A73: mongo_find_one (mongo.c:1235)
==19022==    by 0x4016B9A: mongo_check_last_error.clone.2 (mongo.c:768)
==19022==    by 0x804897B: main (mongo-leak.c:27)
==19022== 
==19022== LEAK SUMMARY:
==19022==    definitely lost: 167 bytes in 1 blocks
==19022==    indirectly lost: 0 bytes in 0 blocks
==19022==      possibly lost: 0 bytes in 0 blocks
==19022==    still reachable: 0 bytes in 0 blocks
==19022==         suppressed: 0 bytes in 0 blocks
==19022== 
==19022== For counts of detected and suppressed errors, rerun with: -v
==19022== ERROR SUMMARY: 1 errors from 1 contexts (suppressed: 17 from 11)