Automated report: NetBSD-current/amd64 build failure

[NetBSD Test Fixture <bracket%NetBSD.org@localhost>]

This is an automatically generated notice of a NetBSD-current/amd64
build failure.

The failure occurred on babylon4.netbsd.org, a NetBSD/amd64 host,
using sources from CVS date 2025.10.05.21.18.29.

An extract from the build.sh output follows:

    --- install-cddl ---
    #   install  /tmp/build/2025.10.05.21.18.29-amd64/destdir/usr/lib/dtrace/unistd.d
    /tmp/build/2025.10.05.21.18.29-amd64/tools/bin/x86_64--netbsd-install -U -M /tmp/build/2025.10.05.21.18.29-amd64/destdir/METALOG -D /tmp/build/2025.10.05.21.18.29-amd64/destdir -h sha256 -N /tmp/build/2025.10.05.21.18.29-amd64/src/etc -c  -r  -o root  -g wheel  -m 444   /tmp/build/2025.10.05.21.18.29-amd64/src/external/cddl/osnet/lib/libdtrace/unistd.d /tmp/build/2025.10.05.21.18.29-amd64/destdir/usr/lib/dtrace/unistd.d
    --- install-share ---
    --- install-installboot ---
    x86_64--netbsd-install: bsd.README: stat: No such file or directory
    *** Failed target: /tmp/build/2025.10.05.21.18.29-amd64/destdir/usr/share/mk/bsd.README
    *** In directory: /tmp/build/2025.10.05.21.18.29-amd64/src/share/installboot/riscv
    *** Failed commands:
    	${_MKTARGET_INSTALL}

The following commits were made between the last successful build and
the first failed build:

    2025.10.05.20.04.30 riastradh src/sys/dev/usb/usb_subr.c 1.280
    2025.10.05.20.04.30 riastradh src/sys/dev/usb/usbdivar.h 1.140
    2025.10.05.20.04.30 riastradh src/sys/dev/usb/xhci.c 1.191
    2025.10.05.20.41.04 riastradh src/sys/dev/usb/usb_subr.c 1.281
    2025.10.05.20.58.09 thorpej src/share/installboot/evbarm/boards.plist 1.16
    2025.10.05.20.59.02 thorpej src/distrib/sets/lists/base/mi 1.1369
    2025.10.05.20.59.02 thorpej src/share/installboot/Makefile 1.3
    2025.10.05.20.59.02 thorpej src/share/installboot/riscv/boards.plist 1.1
    2025.10.05.21.18.29 thorpej src/usr.sbin/installboot/Makefile 1.61
    2025.10.05.21.18.29 thorpej src/usr.sbin/installboot/arch/riscv.c 1.1
    2025.10.05.21.18.29 thorpej src/usr.sbin/installboot/installboot.8 1.114
    2025.10.05.21.18.29 thorpej src/usr.sbin/installboot/installboot.h 1.47
    2025.10.05.21.18.29 thorpej src/usr.sbin/installboot/machines.c 1.45

Logs can be found at:

    http://releng.NetBSD.org/b5reports/amd64/commits-2025.10.html#2025.10.05.21.18.29