The NetBSD-current/i386 build is working again. The following commits were made between the last failed build and the successful build:
2020.06.25.14.52.00 jdolecek src/sys/arch/powerpc/booke/dev/pq3obio.c,v 1.4 2020.06.25.14.52.26 jdolecek src/sys/conf/Makefile.kern.inc,v 1.274 2020.06.25.14.59.51 uwe src/external/cddl/dtracetoolkit/dist/Man/man1m/opensnoop.1m,v 1.4 2020.06.25.15.01.35 jruoho src/distrib/sets/lists/tests/mi,v 1.850 2020.06.25.15.01.35 jruoho src/etc/mtree/NetBSD.dist.tests,v 1.167 2020.06.25.15.01.35 jruoho src/tests/sbin/Makefile,v 1.8 2020.06.25.15.01.35 jruoho src/tests/sbin/envstat/Makefile,v 1.1 2020.06.25.15.01.35 jruoho src/tests/sbin/envstat/t_envstat.sh,v 1.1 2020.06.25.15.21.56 jruoho src/usr.bin/logger/logger.1,v 1.16 2020.06.25.15.41.40 jruoho src/distrib/sets/lists/tests/mi,v 1.851 2020.06.25.15.41.40 jruoho src/tests/sbin/ifconfig/Makefile,v 1.4 2020.06.25.15.41.40 jruoho src/tests/sbin/ifconfig/t_repeated_updown.sh,v 1.1 2020.06.25.15.43.26 jruoho src/tests/sbin/ifconfig/t_tap.sh,v 1.2 2020.06.25.15.43.26 jruoho src/tests/usr.sbin/cpuctl/t_cpuctl.sh,v 1.3 2020.06.25.15.45.37 sjg src/usr.bin/make/meta.c,v 1.82 2020.06.25.16.16.48 jruoho src/tests/kernel/Makefile,v 1.67 2020.06.25.16.16.48 jruoho src/tests/kernel/t_nointerpreter.sh,v 1.1 2020.06.25.16.16.49 jruoho src/distrib/sets/lists/tests/mi,v 1.852 2020.06.25.16.19.07 maxv src/sys/kern/sys_pipe.c,v 1.150 2020.06.25.16.34.49 jruoho src/tests/sbin/ifconfig/t_repeated_updown.sh,v 1.2 2020.06.25.16.36.43 mlelstv src/sys/uvm/uvm_param.h,v 1.39 Logs can be found at: http://releng.NetBSD.org/b5reports/i386/commits-2020.06.html#2020.06.25.16.36.43