2015-02-20T02:33:43.299-0500 I WRITE    [conn12] insert htest1.htest1 ninserted:1 keyUpdates:0 writeConflicts:0 numYields:0 locks:{} 160ms
2015-02-20T02:33:45.587-0500 E STORAGE  [WiredTigerRecordStoreThread for local.oplog.rs] WiredTiger (22) [1424417625:587964][5536:140731139822368], session.truncate: the start cursor position is after the stop cursor position: Invalid argument
2015-02-20T02:33:45.587-0500 I -        [WiredTigerRecordStoreThread for local.oplog.rs] Invariant failure: session->truncate(session, NULL, start, c, NULL) resulted in status BadValue 22: Invalid argument at src\mongo\db\storage\wiredtiger\wiredtiger_record_store.cpp 511
2015-02-20T02:33:46.622-0500 I CONTROL  [WiredTigerRecordStoreThread for local.oplog.rs] mongod.exe    ...\src\mongo\util\stacktrace_win.cpp(175)                                   mongo::printStackTrace+0x43
2015-02-20T02:33:46.622-0500 I CONTROL  [WiredTigerRecordStoreThread for local.oplog.rs] mongod.exe    ...\src\mongo\util\log.cpp(135)                                              mongo::logContext+0x8f
2015-02-20T02:33:46.622-0500 I CONTROL  [WiredTigerRecordStoreThread for local.oplog.rs] mongod.exe    ...\src\mongo\util\assert_util.cpp(157)                                      mongo::invariantOKFailed+0x114
2015-02-20T02:33:46.622-0500 I CONTROL  [WiredTigerRecordStoreThread for local.oplog.rs] mongod.exe    ...\src\mongo\db\storage\wiredtiger\wiredtiger_record_store.cpp(511)         mongo::WiredTigerRecordStore::cappedDeleteAsNeeded_inlock+0x52a
2015-02-20T02:33:46.622-0500 I CONTROL  [WiredTigerRecordStoreThread for local.oplog.rs] mongod.exe    ...\src\mongo\db\storage\wiredtiger\wiredtiger_record_store_mongod.cpp(104)  mongo::`anonymous namespace'::WiredTigerRecordStoreThread::_deleteExcessDocuments+0x454
2015-02-20T02:33:46.622-0500 I CONTROL  [WiredTigerRecordStoreThread for local.oplog.rs] mongod.exe    ...\src\mongo\db\storage\wiredtiger\wiredtiger_record_store_mongod.cpp(121)  mongo::`anonymous namespace'::WiredTigerRecordStoreThread::run+0x5b
2015-02-20T02:33:46.622-0500 I CONTROL  [WiredTigerRecordStoreThread for local.oplog.rs] mongod.exe    ...\src\mongo\util\background.cpp(163)                                       mongo::BackgroundJob::jobBody+0x140
2015-02-20T02:33:46.622-0500 I CONTROL  [WiredTigerRecordStoreThread for local.oplog.rs] mongod.exe    ...\src\third_party\boost\libs\thread\src\win32\thread.cpp(185)              boost::`anonymous namespace'::thread_start_function+0x21
2015-02-20T02:33:46.622-0500 I CONTROL  [WiredTigerRecordStoreThread for local.oplog.rs] mongod.exe    f:\dd\vctools\crt\crtw32\startup\threadex.c(376)                             _callthreadstartex+0x17
2015-02-20T02:33:46.622-0500 I CONTROL  [WiredTigerRecordStoreThread for local.oplog.rs] mongod.exe    f:\dd\vctools\crt\crtw32\startup\threadex.c(354)                             _threadstartex+0x102
2015-02-20T02:33:46.622-0500 I CONTROL  [WiredTigerRecordStoreThread for local.oplog.rs] KERNEL32.DLL                                                                               BaseThreadInitThunk+0xd
2015-02-20T02:33:46.622-0500 I CONTROL  [WiredTigerRecordStoreThread for local.oplog.rs] 
2015-02-20T02:33:46.622-0500 I -        [WiredTigerRecordStoreThread for local.oplog.rs]