OS X Emacs, built from current top-of-trunk

STEPS TO REPRODUCE:
1. Build current trunk emacs with —with-ns option on OS X
2. nextstep/Emacs.app/Contents/MacOS/Emacs -nw

EXPECTED:
I get emacs in the terminal as usual.

OBSERVED:
Crash with the following console output
Fatal error 6: Abort trap[1]    25810 abort      emacs -nw

Crash log attached.