#0  0x00007f8cc0d5762a in g_mutex_get_impl (mutex=0x24970ea702) at /build/buildd/glib2.0-2.40.0/./glib/gthread-posix.c:120
  [Error: /build/buildd/glib2.0-2.40.0/./glib/gthread-posix.c was not found in source tree]
#1  0x00007f8cc0d57989 in g_mutex_lock (mutex=mutex@entry=0x24970ea702) at /build/buildd/glib2.0-2.40.0/./glib/gthread-posix.c:209
  [Error: /build/buildd/glib2.0-2.40.0/./glib/gthread-posix.c was not found in source tree]
#2  0x00007f8cc0d1472f in g_source_ref (source=0x7f8ca80242d0) at /build/buildd/glib2.0-2.40.0/./glib/gmain.c:1942
  [Error: /build/buildd/glib2.0-2.40.0/./glib/gmain.c was not found in source tree]
#3  0x000000000041560e in ?? ()
#4  0x00007f8cc0fe55e7 in _g_closure_invoke_va (closure=0x7f8ca801c300, return_value=0x0, instance=0x7f8ca4010590, args=0x7f8cade068f8, n_params=0, param_types=0x0) at /build/buildd/glib2.0-2.40.0/./gobject/gclosure.c:831
  [Error: /build/buildd/glib2.0-2.40.0/./gobject/gclosure.c was not found in source tree]
#5  0x00007f8cc0ffe088 in g_signal_emit_valist (instance=0x7f8ca4010590, signal_id=<optimized out>, detail=0, var_args=var_args@entry=0x7f8cade068f8) at /build/buildd/glib2.0-2.40.0/./gobject/gsignal.c:3215
  [Error: /build/buildd/glib2.0-2.40.0/./gobject/gsignal.c was not found in source tree]
#6  0x00007f8cc0ffece2 in g_signal_emit (instance=instance@entry=0x7f8ca4010590, signal_id=<optimized out>, detail=detail@entry=0) at /build/buildd/glib2.0-2.40.0/./gobject/gsignal.c:3363
  [Error: /build/buildd/glib2.0-2.40.0/./gobject/gsignal.c was not found in source tree]
#7  0x00007f8cc125ece5 in g_cancellable_cancel (cancellable=0x7f8ca4010590) at /build/buildd/glib2.0-2.40.0/./gio/gcancellable.c:499
  [Error: /build/buildd/glib2.0-2.40.0/./gio/gcancellable.c was not found in source tree]
#8  0x00000000004159d3 in ?? ()
#9  0x00000000004100f1 in ?? ()
#10 0x00000000004102d0 in ?? ()
#11 0x0000000000411988 in ?? ()
#12 0x000000000041382c in ?? ()
#13 0x00007f8cc12844a6 in io_job_thread (task=<optimized out>, source_object=<optimized out>, task_data=0x1274ec0, cancellable=<optimized out>) at /build/buildd/glib2.0-2.40.0/./gio/gioscheduler.c:85
  [Error: /build/buildd/glib2.0-2.40.0/./gio/gioscheduler.c was not found in source tree]
#14 0x00007f8cc12a6ba5 in g_task_thread_pool_thread (thread_data=0x1279390, pool_data=<optimized out>) at /build/buildd/glib2.0-2.40.0/./gio/gtask.c:1213
  [Error: /build/buildd/glib2.0-2.40.0/./gio/gtask.c was not found in source tree]
#15 0x00007f8cc0d3b89c in g_thread_pool_thread_proxy (data=<optimized out>) at /build/buildd/glib2.0-2.40.0/./glib/gthreadpool.c:307
  [Error: /build/buildd/glib2.0-2.40.0/./glib/gthreadpool.c was not found in source tree]
#16 0x00007f8cc0d3af15 in g_thread_proxy (data=0x1270450) at /build/buildd/glib2.0-2.40.0/./glib/gthread.c:764
  [Error: /build/buildd/glib2.0-2.40.0/./glib/gthread.c was not found in source tree]
#17 0x00007f8cc0ab7182 in start_thread (arg=0x7f8cade07700) at pthread_create.c:312
  [Error: pthread_create.c was not found in source tree]
#18 0x00007f8cc07e430d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
  [Error: ../sysdeps/unix/sysv/linux/x86_64/clone.S was not found in source tree]