[windows] forestdb compactor thread error in remove database

Actual crash occurs when compactor thread attempts to log an error that remove database failed:
msg 0x0000000bd2e0e770 "Error in REMOVE on a database file './test.fdb.1', errno = 32: 'The process cannot access the file because it is being used by another process.\r\n'" char[1024]

Also looks like log_callback->callback pointer is invalid
log_callback->callback 0xcccccccccccccccc void (int, const char *, void *) *

Which probably caused program to crash rather than log error

VS screens attached

This occurs in fdb_extendted_test suite: test_writer_multi_reader()