OK. The .wpress file is 166MB and I have imported it many times before (it’s a minimal starter instance).
I increased memory to 2GB and this time the import did not exhaust the memory. I let it run for 3.5 hours and the database restore never progressed beyond 0% complete. The debug.log contained only deprecation warnings and the following database errors.
[17-Aug-2022 19:04:23 UTC] WordPress database error Table 'sirinctw_br59t.br95_actionscheduler_groups' doesn't exist for query SELECT group_id FROM br95_actionscheduler_groups WHERE slug='wpforms' made by require_once('wp-load.php'), require_once('wp-config.php'), require_once('wp-settings.php'), do_action('init'), WP_Hook->do_action, WP_Hook->apply_filters, WPForms\WPForms->WPForms\{closure}, WPForms\Tasks\Tasks->init, WPForms\Emails\FetchInfoBlocksTask->__construct, WPForms\Emails\FetchInfoBlocksTask->init, WPForms\Tasks\Task->register, WPForms\Tasks\Task->register_recurring, as_schedule_recurring_action, ActionScheduler_ActionFactory->recurring, ActionScheduler_ActionFactory->store, ActionScheduler_DBStore->save_action, ActionScheduler_DBStore->get_group_id
[17-Aug-2022 19:07:24 UTC] WordPress database error Table 'sirinctw_br59t.br95_actionscheduler_claims' doesn't exist for query SHOW FULL COLUMNS FROM <code>br95_actionscheduler_claims</code> made by do_action('wp_ajax_as_async_request_queue_runner'), WP_Hook->do_action, WP_Hook->apply_filters, WP_Async_Request->maybe_handle, ActionScheduler_AsyncRequest_QueueRunner->handle, do_action('action_scheduler_run_queue'), WP_Hook->do_action, WP_Hook->apply_filters, ActionScheduler_QueueRunner->run, ActionScheduler_QueueRunner->do_batch, ActionScheduler_DBStore->stake_claim, ActionScheduler_DBStore->generate_claim_id
[17-Aug-2022 19:07:24 UTC] WordPress database error Table 'sirinctw_br59t.br95_actionscheduler_logs' doesn't exist for query INSERT INTO <code>br95_actionscheduler_logs</code> (<code>action_id</code>, <code>message</code>, <code>log_date_gmt</code>, <code>log_date_local</code>) VALUES (577, 'action ignored via Async Request', '2022-08-17 19:07:24', '2022-08-17 19:07:24') made by do_action('wp_ajax_as_async_request_queue_runner'), WP_Hook->do_action, WP_Hook->apply_filters, WP_Async_Request->maybe_handle, ActionScheduler_AsyncRequest_QueueRunner->handle, do_action('action_scheduler_run_queue'), WP_Hook->do_action, WP_Hook->apply_filters, ActionScheduler_QueueRunner->run, ActionScheduler_QueueRunner->do_batch, ActionScheduler_Abstract_QueueRunner->process_action, do_action('action_scheduler_execution_ignored'), WP_Hook->do_action, WP_Hook->apply_filters, ActionScheduler_Logger->log_ignored_action, ActionScheduler_DBLogger->log
[17-Aug-2022 20:47:04 UTC] WordPress database error Table 'sirinctw_br59t.br95_actionscheduler_logs' doesn't exist for query SHOW FULL COLUMNS FROM <code>br95_actionscheduler_logs</code> made by require_once('wp-load.php'), require_once('wp-config.php'), require_once('wp-settings.php'), do_action('init'), WP_Hook->do_action, WP_Hook->apply_filters, WPForms\WPForms->WPForms\{closure}, WPForms\Tasks\Tasks->init, WPForms\Emails\FetchInfoBlocksTask->__construct, WPForms\Emails\FetchInfoBlocksTask->init, WPForms\Tasks\Task->register, WPForms\Tasks\Task->register_recurring, as_schedule_recurring_action, ActionScheduler_ActionFactory->recurring, ActionScheduler_ActionFactory->store, ActionScheduler_DBStore->save_action, do_action('action_scheduler_stored_action'), WP_Hook->do_action, WP_Hook->apply_filters, ActionScheduler_Logger->log_stored_action, ActionScheduler_DBLogger->log
