The NetBSD-current/i386 build is working again. The following commits were made between the last failed build and the successful build:
2020.08.09.15.02.52 tsutsui src/external/mit/xorg/server/xorg-server/fb/Makefile.fb,v 1.12 2020.08.09.15.03.25 rillig src/usr.bin/make/unit-tests/moderrs.exp,v 1.14 2020.08.09.15.03.25 rillig src/usr.bin/make/unit-tests/moderrs.mk,v 1.13 2020.08.09.15.07.13 rillig src/usr.bin/make/var.c,v 1.445 2020.08.09.15.15.29 rillig src/usr.bin/make/unit-tests/moderrs.exp,v 1.15 2020.08.09.15.15.29 rillig src/usr.bin/make/unit-tests/moderrs.mk,v 1.14 2020.08.09.15.32.44 christos src/sys/arch/x86/x86/cpu.c,v 1.198 2020.08.09.15.32.44 christos src/sys/arch/x86/x86/x86_machdep.c,v 1.146 2020.08.09.15.54.13 rillig src/usr.bin/make/Makefile.boot,v 1.22 2020.08.09.16.32.28 rillig src/distrib/sets/lists/tests/mi,v 1.888 2020.08.09.16.32.28 rillig src/usr.bin/make/unit-tests/Makefile,v 1.91 2020.08.09.16.32.28 rillig src/usr.bin/make/unit-tests/use-inference.exp,v 1.1 2020.08.09.16.32.28 rillig src/usr.bin/make/unit-tests/use-inference.mk,v 1.1 Logs can be found at: http://releng.NetBSD.org/b5reports/i386/commits-2020.08.html#2020.08.09.16.32.28