#0  0xa2169bc7 in signon_auth_session_cancel (self=0x2d77ff02) at signon-auth-session.c:649
  [Error: signon-auth-session.c was not found in source tree]
#1  0xb3870f6e in finish_with_cleanup (self=self@entry=0xb91df4a8) at libaccount-plugin/oauth-plugin.c:168
  [Error: libaccount-plugin/oauth-plugin.c was not found in source tree]
#2  0xb386f3aa in finish_with_error (self=self@entry=0xb91df4a8, error=<optimized out>) at libaccount-plugin/oauth-plugin.c:185
  [Error: libaccount-plugin/oauth-plugin.c was not found in source tree]
#3  0xb3871866 in auth_session_process_cb (source_object=0xb95c8720, res=0xb95ccc80, user_data=0xb91df4a8) at libaccount-plugin/oauth-plugin.c:359
  [Error: libaccount-plugin/oauth-plugin.c was not found in source tree]
#4  0xb6fb7ac0 in g_simple_async_report_gerror_in_idle (object=0xb9133a30, callback=0x1, user_data=0xb9426e50, error=0xb6fb7bec <g_simple_async_report_take_gerror_in_idle+172>) at /build/buildd/glib2.0-2.35.8/./gio/gsimpleasyncresult.c:1031
  [Error: /build/buildd/glib2.0-2.35.8/./gio/gsimpleasyncresult.c was not found in source tree]
#5  0xb70b4000 in ?? () from /tmp/apport_sandbox_4QQSYv/usr/lib/i386-linux-gnu/libgio-2.0.so.0