#0  0x00007f00a3f5f267 in __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:55
  [Error: raise.c was not found in source tree]
#1  0x00007f00a3f60eca in __GI_abort () at abort.c:89
  [Error: abort.c was not found in source tree]
#2  0x00007f00a4581ed5 in g_assertion_message (domain=domain@entry=0x7f00a45a38ee "GLib", file=file@entry=0x7f00a45a8590 "/build/glib2.0-hcw3A1/glib2.0-2.45.7/./glib/ghash.c", line=line@entry=373, func=func@entry=0x7f00a45a87d0 <__func__.10278> "g_hash_table_lookup_node", message=message@entry=0x7f0080019f40 "assertion failed: (hash_table->ref_count > 0)") at /build/glib2.0-hcw3A1/glib2.0-2.45.7/./glib/gtestutils.c:2429
  [Error: gtestutils.c was not found in source tree]
#3  0x00007f00a4581f6a in g_assertion_message_expr (domain=domain@entry=0x7f00a45a38ee "GLib", file=file@entry=0x7f00a45a8590 "/build/glib2.0-hcw3A1/glib2.0-2.45.7/./glib/ghash.c", line=line@entry=373, func=func@entry=0x7f00a45a87d0 <__func__.10278> "g_hash_table_lookup_node", expr=expr@entry=0x7f00a45a84d8 "hash_table->ref_count > 0") at /build/glib2.0-hcw3A1/glib2.0-2.45.7/./glib/gtestutils.c:2444
  [Error: gtestutils.c was not found in source tree]
#4  0x00007f00a454ad9e in g_hash_table_lookup_node (hash_return=<synthetic pointer>, key=0x7f00a595fbe5, hash_table=0x7f0080002a40) at /build/glib2.0-hcw3A1/glib2.0-2.45.7/./glib/ghash.c:373
  [Error: ghash.c was not found in source tree]
#5  g_hash_table_lookup (hash_table=0x7f0080002a40, key=key@entry=0x7f00a595fbe5) at /build/glib2.0-hcw3A1/glib2.0-2.45.7/./glib/ghash.c:1147
  [Error: ghash.c was not found in source tree]
#6  0x00007f00a567efa8 in e_source_get_extension (source=0x5588c44392b0, extension_name=extension_name@entry=0x7f00a595fbe5 "Collection") at e-source.c:3153
  3148: 	g_return_val_if_fail (extension_name != NULL, NULL);
  3149: 
  3150: 	g_rec_mutex_lock (&source->priv->lock);
  3151: 
  3152: 	/* Check if we already have the extension. */
  3153: 	extension = g_hash_table_lookup (
  3154: 		source->priv->extensions, extension_name);
  3155: 	if (extension != NULL)
  3156: 		goto exit;
  3157: 
  3158: 	/* Find all subclasses of ESourceExtensionClass. */
#7  0x00007f00a5929808 in collection_backend_dispose (object=0x5588c445e0f0) at e-collection-backend.c:722
  717: 		ESource *source = e_backend_get_source (E_BACKEND (object));
  718: 
  719: 		if (source) {
  720: 			ESourceCollection *collection_extension;
  721: 
  722: 			collection_extension = e_source_get_extension (source, E_SOURCE_EXTENSION_COLLECTION);
  723: 
  724: 			g_signal_handler_disconnect (collection_extension, priv->notify_collection_handler_id);
  725: 		}
  726: 
  727: 		priv->notify_collection_handler_id = 0;
#8  0x00007f00a48361d5 in g_object_unref (_object=0x5588c445e0f0) at /build/glib2.0-hcw3A1/glib2.0-2.45.7/./gobject/gobject.c:3143
  [Error: gobject.c was not found in source tree]
#9  0x00007f00a453fc73 in g_datalist_clear (datalist=<optimized out>) at /build/glib2.0-hcw3A1/glib2.0-2.45.7/./glib/gdataset.c:273
  [Error: gdataset.c was not found in source tree]
#10 0x00007f00a483624a in g_object_unref (_object=0x5588c44392b0) at /build/glib2.0-hcw3A1/glib2.0-2.45.7/./gobject/gobject.c:3180
  [Error: gobject.c was not found in source tree]
#11 0x00007f00a568746d in async_context_free (ptr=0x7f0080011100) at e-source-credentials-provider.c:590
  585: async_context_free (gpointer ptr)
  586: {
  587: 	AsyncContext *async_context = ptr;
  588: 
  589: 	if (async_context) {
  590: 		g_clear_object (&async_context->source);
  591: 		e_named_parameters_free (async_context->credentials);
  592: 		g_free (async_context);
  593: 	}
  594: }
  595: 
#12 0x00007f00a4af942d in g_task_finalize (object=0x7f00800161d0) at /build/glib2.0-hcw3A1/glib2.0-2.45.7/./gio/gtask.c:633
  [Error: gtask.c was not found in source tree]
#13 0x00007f00a483624a in g_object_unref (_object=0x7f00800161d0) at /build/glib2.0-hcw3A1/glib2.0-2.45.7/./gobject/gobject.c:3180
  [Error: gobject.c was not found in source tree]
#14 0x00007f00a4af9d58 in g_task_thread_pool_thread (thread_data=0x7f00800161d0, pool_data=<optimized out>) at /build/glib2.0-hcw3A1/glib2.0-2.45.7/./gio/gtask.c:1286
  [Error: gtask.c was not found in source tree]
#15 0x00007f00a45836be in g_thread_pool_thread_proxy (data=<optimized out>) at /build/glib2.0-hcw3A1/glib2.0-2.45.7/./glib/gthreadpool.c:307
  [Error: gthreadpool.c was not found in source tree]
#16 0x00007f00a4582d25 in g_thread_proxy (data=0x5588c43a7800) at /build/glib2.0-hcw3A1/glib2.0-2.45.7/./glib/gthread.c:778
  [Error: gthread.c was not found in source tree]
#17 0x00007f00a42fb6aa in start_thread (arg=0x7f008506e700) at pthread_create.c:333
  [Error: pthread_create.c was not found in source tree]
#18 0x00007f00a4030eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109
  [Error: clone.S was not found in source tree]
