#0  0x00007fa432f87f77 in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56
  [Error: ../nptl/sysdeps/unix/sysv/linux/raise.c was not found in source tree]
#1  0x00007fa432f8b5e8 in __GI_abort () at abort.c:90
  [Error: abort.c was not found in source tree]
#2  0x00007fa432fc54fb in __libc_message (do_abort=do_abort@entry=2, fmt=fmt@entry=0x7fa4330d86a0 "*** Error in `%s': %s: 0x%s ***\n") at ../sysdeps/unix/sysv/linux/libc_fatal.c:199
  [Error: ../sysdeps/unix/sysv/linux/libc_fatal.c was not found in source tree]
#3  0x00007fa432fd1996 in malloc_printerr (ptr=0x7fa3f80068f0, str=0x7fa4330d4692 "invalid fastbin entry (free)", action=3) at malloc.c:4902
  [Error: malloc.c was not found in source tree]
#4  _int_free (av=<optimized out>, p=0x7fa3f80068e0, have_lock=0) at malloc.c:3758
  [Error: malloc.c was not found in source tree]
#5  0x00007fa4342fb969 in g_print (format=format@entry=0x42674e "restarting with '%s'...\n") at /build/buildd/glib2.0-2.37.5/./glib/gmessages.c:1473
  [Error: /build/buildd/glib2.0-2.37.5/./glib/gmessages.c was not found in source tree]
#6  0x000000000040fc0d in _cairo_dock_intercept_signal (signal=<optimized out>) at /build/buildd/cairo-dock-3.2.1/src/cairo-dock.c:210
  [Error: /build/buildd/cairo-dock-3.2.1/src/cairo-dock.c was not found in source tree]
#7  <signal handler called>
#8  0x00007fa432f87f77 in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56
  [Error: ../nptl/sysdeps/unix/sysv/linux/raise.c was not found in source tree]
#9  0x00007fa432f8b5e8 in __GI_abort () at abort.c:90
  [Error: abort.c was not found in source tree]
#10 0x00007fa432fc54fb in __libc_message (do_abort=do_abort@entry=2, fmt=fmt@entry=0x7fa4330d86a0 "*** Error in `%s': %s: 0x%s ***\n") at ../sysdeps/unix/sysv/linux/libc_fatal.c:199
  [Error: ../sysdeps/unix/sysv/linux/libc_fatal.c was not found in source tree]
#11 0x00007fa432fd1996 in malloc_printerr (ptr=0x7fa3f801ad40, str=0x7fa4330d8868 "double free or corruption (fasttop)", action=3) at malloc.c:4902
  [Error: malloc.c was not found in source tree]
#12 _int_free (av=<optimized out>, p=0x7fa3f801ad30, have_lock=0) at malloc.c:3758
  [Error: malloc.c was not found in source tree]
#13 0x00007fa432295995 in ?? () from /tmp/apport_sandbox_j8HlwO/lib/x86_64-linux-gnu/libdbus-1.so.3
#14 0x00007fa43481338a in dbus_g_proxy_manager_unregister (manager=0x7fa3f80aea70, proxy=proxy@entry=0x7fa3f80b3870) at dbus-gproxy.c:1087
  [Error: dbus-gproxy.c was not found in source tree]
#15 0x00007fa43481376c in dbus_g_proxy_dispose (object=0x7fa3f80b3870) at dbus-gproxy.c:1546
  [Error: dbus-gproxy.c was not found in source tree]
#16 0x00007fa4345c0cdc in g_object_unref (_object=0x7fa3f80b3870) at /build/buildd/glib2.0-2.37.5/./gobject/gobject.c:3157
  [Error: /build/buildd/glib2.0-2.37.5/./gobject/gobject.c was not found in source tree]
#17 0x00007fa416d29863 in up_client_finalize (object=0x1d72d90) at up-client.c:1123
  [Error: up-client.c was not found in source tree]
#18 0x00007fa4345c0d6a in g_object_unref (_object=0x1d72d90) at /build/buildd/glib2.0-2.37.5/./gobject/gobject.c:3194
  [Error: /build/buildd/glib2.0-2.37.5/./gobject/gobject.c was not found in source tree]
#19 0x00007fa416f3a5c3 in _cd_logout_check_capabilities_async (pSharedMemory=0x1d14240) at /build/buildd/cairo-dock-plug-ins-3.2.1/logout/src/applet-logout.c:77
  [Error: /build/buildd/cairo-dock-plug-ins-3.2.1/logout/src/applet-logout.c was not found in source tree]
#20 0x00007fa4333a17d0 in _cairo_dock_threaded_calculation (pTask=0x1d0c930) at /build/buildd/cairo-dock-3.2.1/src/gldit/cairo-dock-task.c:151
  [Error: /build/buildd/cairo-dock-3.2.1/src/gldit/cairo-dock-task.c was not found in source tree]
#21 0x00007fa434318cd5 in g_thread_proxy (data=0x1bfd850) at /build/buildd/glib2.0-2.37.5/./glib/gthread.c:798
  [Error: /build/buildd/glib2.0-2.37.5/./glib/gthread.c was not found in source tree]
#22 0x00007fa4324c5f6e in start_thread (arg=0x7fa3fdac1700) at pthread_create.c:311
  [Error: pthread_create.c was not found in source tree]
#23 0x00007fa43304ae2d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113
  [Error: ../sysdeps/unix/sysv/linux/x86_64/clone.S was not found in source tree]