The NetBSD-current/i386 build is working again. The following commits were made between the last failed build and the successful build:
2021.02.23.16.00.37 christos src/tests/lib/libc/regex/t_regex_att.c,v 1.4 2021.02.23.16.03.00 rin src/tools/compat/compat_defs.h,v 1.117 2021.02.23.16.04.16 rillig src/usr.bin/make/unit-tests/moderrs.exp,v 1.28 2021.02.23.16.04.16 rillig src/usr.bin/make/unit-tests/moderrs.mk,v 1.27 2021.02.23.16.07.14 rillig src/usr.bin/make/unit-tests/moderrs.exp,v 1.29 2021.02.23.16.07.14 rillig src/usr.bin/make/unit-tests/modts.exp,v 1.6 2021.02.23.16.07.14 rillig src/usr.bin/make/unit-tests/modword.exp,v 1.3 2021.02.23.16.07.14 rillig src/usr.bin/make/unit-tests/varmod-assign.exp,v 1.9 2021.02.23.16.07.14 rillig src/usr.bin/make/unit-tests/varmod-order.exp,v 1.3 2021.02.23.16.07.14 rillig src/usr.bin/make/unit-tests/varmod-to-separator.exp,v 1.7 2021.02.23.16.07.14 rillig src/usr.bin/make/var.c,v 1.853 2021.02.23.16.14.11 rillig src/usr.bin/make/var.c,v 1.854 2021.02.23.16.29.52 rillig src/usr.bin/make/var.c,v 1.855 2021.02.23.16.47.04 rillig src/share/man/man3/timeradd.3,v 1.10 2021.02.23.16.54.17 tsutsui src/sys/arch/m68k/m68k/reenter_syscall.s,v 1.7 2021.02.23.17.13.44 christos src/tests/lib/libc/regex/main.c,v 1.4 2021.02.23.17.14.42 christos src/include/regex.h,v 1.16 Logs can be found at: http://releng.NetBSD.org/b5reports/i386/commits-2021.02.html#2021.02.23.17.14.42