The NetBSD-current/i386 build is working again. The following commits were made between the last failed build and the successful build:
2018.03.01.06.24.12 snj src/libexec/rpc.rusersd/rusers_proc.c,v 1.29 2018.03.01.06.34.23 snj src/share/mk/bsd.README,v 1.367 2018.03.01.06.36.12 mrg src/sys/arch/x86/conf/files.x86,v 1.97 2018.03.01.06.36.12 mrg src/sys/arch/x86/pci/files.pci,v 1.24 2018.03.01.06.37.40 snj src/share/man/man7/hier.7,v 1.129 2018.03.01.07.18.39 snj src/distrib/sets/checkflist,v 1.45 Log files can be found at: http://releng.NetBSD.org/b5reports/i386/commits-2018.03.html#2018.03.01.07.18.39