BleachBit errors cleaning APT as non-root user

"Error in execution of
Traceback (most recent call last):
File "/usr/share/bleachbit/Worker.py", line 84, in execute
for ret in cmd.execute(self.really_delete):
File "/usr/share/bleachbit/Command.py", line 131, in execute
func_ret = self.func()
File "/usr/share/bleachbit/Unix.py", line 360, in apt_autoclean
raise RuntimeError(line)
RuntimeError: E: Could not open lock file /var/cache/apt/archives/lock - open (13: Permission denied)
Error in execution of
Traceback (most recent call last):
File "/usr/share/bleachbit/Worker.py", line 84, in execute
for ret in cmd.execute(self.really_delete):
File "/usr/share/bleachbit/Command.py", line 131, in execute
func_ret = self.func()
File "/usr/share/bleachbit/Unix.py", line 390, in apt_autoremove
raise RuntimeError(line)"

This is on non-SUDO Ubuntu 12.04, updated, all checkboxes checked except Thunderbird/Index and System/Custom, Free Disk Space and Memory.

It does not seem to be a big deal but saw this twice today. Is there a config file I can post or a file to provide any other system info for debugging?