Automated report: NetBSD-current/i386 build failure

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

This is an automatically generated notice of a NetBSD-current/i386
build failure.

The failure occurred on babylon5.netbsd.org, a NetBSD/amd64 host,
using sources from CVS date 2017.03.20.22.57.04.

An extract from the build.sh output follows:

                         ^
    /tmp/bracket/build/2017.03.20.22.57.04-i386/src/sys/uvm/uvm_bio.c:356:3: error: no return statement in function returning non-void [-Werror=return-type]
       KASSERTMSG((slot_offset < umap->writeoff + umap->writelen),
       ^
    /tmp/bracket/build/2017.03.20.22.57.04-i386/src/sys/uvm/uvm_bio.c: At top level:
    /tmp/bracket/build/2017.03.20.22.57.04-i386/src/sys/uvm/uvm_bio.c:61:24: error: 'ubc_find_mapping' declared 'static' but never defined [-Werror=unused-function]
     static struct ubc_map *ubc_find_mapping(struct uvm_object *, voff_t);
                            ^
    cc1: all warnings being treated as errors
    *** [uvm_bio.o] Error code 1
    nbmake[2]: stopped in /tmp/bracket/build/2017.03.20.22.57.04-i386/obj/sys/arch/i386/compile/XEN3PAE_DOMU
    --- kern-LEGACY ---

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

    2017.03.20.22.42.39 nat src/sys/dev/audio.c,v 1.316
    2017.03.20.22.57.04 kre src/sys/uvm/uvm_bio.c,v 1.88

Log files can be found at:

    http://releng.NetBSD.org/b5reports/i386/commits-2017.03.html#2017.03.20.22.57.04