The NetBSD-current/i386 build is working again. The following commits were made between the last failed build and the successful build:
2020.02.27.17.17.34 christos src/rescue/Makefile,v 1.40 2020.02.27.17.30.07 jmcneill src/sys/dev/ic/bcmgenet.c,v 1.3 2020.02.27.17.42.33 pgoyette src/sys/compat/common/compat_sysctl_09_43.c,v 1.5 Log files can be found at: http://releng.NetBSD.org/b5reports/i386/commits-2020.02.html#2020.02.27.17.42.33