The NetBSD-current/i386 build is working again. The following commits were made between the last failed build and the successful build:
2022.05.12.18.47.29 martin src/usr.bin/xlint/lint1/cgram.y,v 1.413 Logs can be found at: http://releng.NetBSD.org/b5reports/i386/commits-2022.05.html#2022.05.12.18.47.29