Automated report: NetBSD-current/alpha build failure

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

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

The failure occurred on babylon5.netbsd.org, a NetBSD/amd64 host,
using sources from CVS date 2026.05.03.21.40.37.

An extract from the build.sh output follows:

      259 | #define CTASSERT(x)             __CTASSERT(x)
          |                                 ^~~~~~~~~~
    /tmp/build/2026.05.03.21.40.37-alpha/src/lib/librumpnet/../../sys/rump/../kern/uipc_mbuf.c:181:9: note: in expansion of macro 'CTASSERT'
      181 |         CTASSERT(sizeof(struct _m_ext) <= MHLEN);
          |         ^~~~~~~~
    /tmp/build/2026.05.03.21.40.37-alpha/src/lib/librumpnet/../../sys/rump/../sys/cdefs.h:172:48: error: negative width in bit-field '__ctassert14'
      172 | #define __CTASSERT(x)           __CTASSERT0(x, __ctassert, __COUNTER__)
          |                                                ^~~~~~~~~~
    /tmp/build/2026.05.03.21.40.37-alpha/src/lib/librumpnet/../../sys/rump/../sys/cdefs.h:181:30: note: in definition of macro '__CTASSERT1'
      181 |                 unsigned int y ## z : /*CONSTCOND*/(x) ? 1 : -1; \
          |                              ^

Between the last successful build and the first failed build, a total
of 901 revisions were committed, by the following developers:

    christos
    kre
    martin
    mrg
    skrll
    thorpej

The first of these commits was CVS date 2026.05.03.12.39.34,
and the last on CVS date 2026.05.03.21.40.37.

Logs can be found at:

    https://releng.NetBSD.org/b5reports/alpha/commits-2026.05.html#2026.05.03.21.40.37