See this Fedora bug:
https://bugzilla.redhat.com/show_bug.cgi?id=1022221

The crash itself is addressed by this commit:

commit b2997aa91496c1b9ec2c226ee6f26d5b198040a1
Author: Debarshi Ray <debarshir@gnome.org>
Date:   Mon Oct 13 14:27:07 2014 +0200

    libtracker-data: Guard against invalid statements in public API
    
    https://bugzilla.gnome.org/show_bug.cgi?id=738450

The question is, why would this statement return a NULL stmt in tracker_db_interface_sqlite_fts_update_text:
                stmt = tracker_db_interface_create_statement (db_interface,
                                                              TRACKER_DB_STATEMENT_CACHE_TYPE_UPDATE,
                                                              &error,
                                                              "DELETE FROM fts WHERE docid=?");

Unless there is an error from sqlite.

The attached session log is very dirty and shows tracker-store constantly crashing. So it is hard to guess. The only meaningful entry there is:
    Tracker-CRITICAL **: D-Bus service name:'org.freedesktop.Tracker1' is already taken, perhaps the daemon is already running?

I think we should atleast handle the error from tracker_db_interface_create_statement and warn about it as we are doing elsewhere.