Version-Release number of selected component:
evolution-data-server-3.12.8-1.fc21

Additional info:
reporter:       libreport-2.3.0
backtrace_rating: 4
cmdline:        /usr/libexec/evolution-calendar-factory
crash_function: g_mutex_clear
executable:     /usr/libexec/evolution-calendar-factory
kernel:         3.17.2-300.fc21.x86_64+debug
runlevel:       N 5
type:           CCpp
uid:            1000

Truncated backtrace:
Thread no. 1 (10 frames)
 #2 g_mutex_clear at gthread-posix.c:1295
 #3 backend_finalize at e-backend.c:357
 #5 g_source_callback_unref at gmain.c:1532
 #6 g_source_destroy_internal at gmain.c:1178
 #7 g_source_destroy at gmain.c:1227
 #8 backend_update_online_state at e-backend.c:197
 #13 emit_network_changed at gnetworkmonitorbase.c:357
 #18 dbus_server_run_server at e-dbus-server.c:230
 #19 ffi_call_unix64 at ../src/x86/unix64.S:76
 #20 ffi_call at ../src/x86/ffi64.c:525