protected function dependency_race_error(array $status, $channel, $version) {
		// provide feedback on loop
		! $this->verbose or $this->log("\n");
		$this->log(" Race backtrace:\n");
		foreach ($status['active'] as $activeinfo) {
			$this->log("  - {$activeinfo['channel']} {$activeinfo['version']}\n");
		}
		$this->log("\n");

		throw new Panic("Target version breached by race condition on $channel $version");
	}