GtkD crash: 'BadAlloc (insufficient resources for operation)'

[mark]

I'm getting a crash when I add 1000s of rows to a tree (up to 
100s seems to work ok).

The source code is here: 
https://github.com/mark-summerfield/debfind
Note that this will only build and run on a Debian or 
Debian-derived system (e.g., Ubuntu).

I am pretty well reaching the point of giving up with GtkD -- and 
therefore with GUI programming in D since there isn't really a 
decent reliable D GUI library that I can find. (I don't want to 
use Qt or QML because of the licensing issues.)


(DebFind:3285): Gdk-ERROR **: 12:59:59.299: The program 'DebFind' 
received an X Window System error.
This probably reflects a bug in the program.
The error was 'BadAlloc (insufficient resources for operation)'.
   (Details: serial 25818 error_code 11 request_code 130 (MIT-SHM) 
minor_code 5)
   (Note to programmers: normally, X errors are reported 
asynchronously;
    that is, you will receive the error a while after causing it.
    To debug your program, run it with the GDK_SYNCHRONIZE 
environment
    variable to change this behavior. You can then get a meaningful
    backtrace from your debugger if you break on the gdk_x_error() 
function.)
Program exited with code -5