Comment # 1 on bug 1224407 from J. Daniel Schmidt

Also happens in i3 window manager with parcellite 1.2.4.0

The message differs when no parcelliterc file is present:

linux ~> rm .config/parcellite/parcelliterc
linux ~> parcellite 
Looking in '/etc/xdg/parcellite/parcelliterc'
Looking in '/usr/local/etc/xdg/parcellite/parcelliterc'
Looking in '/usr/etc/xdg/parcellite/parcelliterc'
Looking in '/etc/xdg/parcellite/parcelliterc'
Looking in '/usr/local/etc/xdg/parcellite/parcelliterc'
Looking in '/usr/etc/xdg/parcellite/parcelliterc'
Looking in '/etc/xdg/parcellite/parcelliterc'
Looking in '/usr/local/etc/xdg/parcellite/parcelliterc'
Looking in '/usr/etc/xdg/parcellite/parcelliterc'
Flag 0x0001, status 0, EXIT 1 STAT 0
Looking in '/etc/xdg/parcellite/parcelliterc'
Looking in '/usr/local/etc/xdg/parcellite/parcelliterc'
Looking in '/usr/etc/xdg/parcellite/parcelliterc'

Flag 0x0001, status 0, EXIT 1 STAT 0
Looking in '/etc/xdg/parcellite/parcelliterc'
Looking in '/usr/local/etc/xdg/parcellite/parcelliterc'
Looking in '/usr/etc/xdg/parcellite/parcelliterc'
Looking in '/etc/xdg/parcellite/parcelliterc'
Looking in '/usr/local/etc/xdg/parcellite/parcelliterc'
Looking in '/usr/etc/xdg/parcellite/parcelliterc'
free(): invalid pointer
Aborted (core dumped)
linux ~> # now a .config/parcellite/parcelliterc exists
linux ~> parcellite 
Flag 0x0001, status 0, EXIT 1 STAT 0
Flag 0x0001, status 0, EXIT 1 STAT 0
double free or corruption (out)
Aborted (core dumped)