The NetBSD-current/i386 build is working again. The following commits were made between the last failed build and the successful build:
2020.07.12.08.48.49 kim src/sys/dev/i2c/dbcool_var.h,v 1.17 Logs can be found at: http://releng.NetBSD.org/b5reports/i386/commits-2020.07.html#2020.07.12.08.48.49