☠ Buildbot (Sourceware): gcc-autoregen - failed 'git diff ...' (failure) (master)

[builder@sourceware.org]

A failed build has been detected on builder gcc-autoregen while building gcc.

Full details are available at:
    https://builder.sourceware.org/buildbot/#/builders/269/builds/10188

Build state: failed 'git diff ...' (failure)
Revision: ab952929f7741998e3f28959c85e7abbf88ea79f
Worker: bb1-1
Build Reason: (unknown)
Blamelist: Andrew Pinski <quic_apinski@quicinc.com>, Dimitar Dimitrov <dimitar@dinux.eu>, Eric Botcazou <ebotcazou@adacore.com>, Evgeny Karpov <evgeny.karpov@microsoft.com>, GCC Administrator <gccadmin@gcc.gnu.org>, Georg-Johann Lay <avr@gjlay.de>, Jakub Jelinek <jakub@redhat.com>, Jeff Law <jlaw@ventanamicro.com>, Jerry DeLisle <jvdelisle@gcc.gnu.org>, Joseph Myers <josmyers@redhat.com>, Lewis Hyatt <lhyatt@gmail.com>, Lulu Cheng <chenglulu@loongson.cn>, Maciej W. Rozycki <macro@orcam.me.uk>, Pan Li <pan2.li@intel.com>, Paul Thomas <pault@gcc.gnu.org>, Sam James <sam@gentoo.org>, Siddhesh Poyarekar <siddhesh@gotplt.org>, Tamar Christina <tamar.christina@arm.com>, Tobias Burnus <tburnus@baylibre.com>

Steps:

- 0: worker_preparation ( success )

- 1: git checkout ( success )
    Logs:
        - stdio: https://builder.sourceware.org/buildbot/#/builders/269/builds/10188/steps/1/logs/stdio

- 2: autoregen.py ( success )
    Logs:
        - stdio: https://builder.sourceware.org/buildbot/#/builders/269/builds/10188/steps/2/logs/stdio

- 3: git diff ( success )
    Logs:
        - stdio: https://builder.sourceware.org/buildbot/#/builders/269/builds/10188/steps/3/logs/stdio

- 4: mkdir objdir ( success )
    Logs:
        - stdio: https://builder.sourceware.org/buildbot/#/builders/269/builds/10188/steps/4/logs/stdio

- 5: configure ( success )
    Logs:
        - stdio: https://builder.sourceware.org/buildbot/#/builders/269/builds/10188/steps/5/logs/stdio

- 6: make html ( warnings )
    Logs:
        - stdio: https://builder.sourceware.org/buildbot/#/builders/269/builds/10188/steps/6/logs/stdio
        - warnings (124): https://builder.sourceware.org/buildbot/#/builders/269/builds/10188/steps/6/logs/warnings__124_

- 7: make regenerate-opt-urls ( success )
    Logs:
        - stdio: https://builder.sourceware.org/buildbot/#/builders/269/builds/10188/steps/7/logs/stdio

- 8: git diff_1 ( failure )
    Logs:
        - stdio: https://builder.sourceware.org/buildbot/#/builders/269/builds/10188/steps/8/logs/stdio