The NetBSD-current/i386 build is working again. The following commits were made between the last failed build and the successful build:
2019.02.10.02.04.06 kamil src/tests/lib/libc/sys/t_ptrace_wait.c,v 1.77 2019.02.10.02.13.45 kamil src/tests/lib/libc/sys/Makefile,v 1.54 2019.02.10.02.13.45 kamil src/tests/lib/libc/sys/t_ptrace_amd64_wait.h,v 1.6 2019.02.10.02.13.45 kamil src/tests/lib/libc/sys/t_ptrace_i386_wait.h,v 1.3 2019.02.10.02.13.45 kamil src/tests/lib/libc/sys/t_ptrace_wait.c,v 1.78 2019.02.10.02.13.45 kamil src/tests/lib/libc/sys/t_ptrace_wait.h,v 1.14 2019.02.10.02.13.45 kamil src/tests/lib/libc/sys/t_ptrace_wait3.c,v 1.2 2019.02.10.02.13.45 kamil src/tests/lib/libc/sys/t_ptrace_wait4.c,v 1.2 2019.02.10.02.13.45 kamil src/tests/lib/libc/sys/t_ptrace_wait6.c,v 1.2 2019.02.10.02.13.45 kamil src/tests/lib/libc/sys/t_ptrace_waitid.c,v 1.2 2019.02.10.02.13.45 kamil src/tests/lib/libc/sys/t_ptrace_waitpid.c,v 1.2 2019.02.10.02.13.45 kamil src/tests/lib/libc/sys/t_ptrace_x86_wait.h,v 1.9 Log files can be found at: http://releng.NetBSD.org/b5reports/i386/commits-2019.02.html#2019.02.10.02.13.45