The NetBSD-current/i386 build is working again. The following commits were made between the last failed build and the successful build:
2016.12.15.07.08.27 pgoyette src/distrib/sets/lists/modules/mi,v 1.105 2016.12.15.07.47.08 kamil src/doc/TODO.ptrace,v 1.3 Log files can be found at: http://releng.NetBSD.org/b5reports/i386/commits-2016.12.html#2016.12.15.07.47.08