☠ 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/4131

Build state: failed 'git diff ...' (failure)
Revision: d60968de6961cef144a5cf8701ea0d3f4ea90f18
Worker: bb1-2
Build Reason: (unknown)
Blamelist: Christophe Lyon <christophe.lyon@linaro.org>, David Malcolm <dmalcolm@redhat.com>, GCC Administrator <gccadmin@gcc.gnu.org>, Gaius Mulley <gaiusmod2@gmail.com>, Iain Sandoe <iain@sandoe.co.uk>, Jakub Jelinek <jakub@redhat.com>, Jason Merrill <jason@redhat.com>, Jiahao Xu <xujiahao@loongson.cn>, Jonathan Wakely <jwakely@redhat.com>, Marek Polacek <polacek@redhat.com>, Martin Uecker <uecker@tugraz.at>, Patrick Palka <ppalka@redhat.com>, Paul Thomas <pault@gcc.gnu.org>, Richard Biener <rguenther@suse.de>, Tobias Burnus <tburnus@baylibre.com>, Tom Tromey <tom@tromey.com>, Tom Tromey <tromey@adacore.com>, Yang Yujie <yangyujie@loongson.cn>, mengqinggang <mengqinggang@loongson.cn>

Steps:

- 0: worker_preparation ( success )

- 1: git checkout ( success )
    Logs:
        - stdio: https://builder.sourceware.org/buildbot/#/builders/269/builds/4131/steps/1/logs/stdio

- 2: autoregen.py ( success )
    Logs:
        - stdio: https://builder.sourceware.org/buildbot/#/builders/269/builds/4131/steps/2/logs/stdio

- 3: git diff ( success )
    Logs:
        - stdio: https://builder.sourceware.org/buildbot/#/builders/269/builds/4131/steps/3/logs/stdio

- 4: mkdir objdir ( success )
    Logs:
        - stdio: https://builder.sourceware.org/buildbot/#/builders/269/builds/4131/steps/4/logs/stdio

- 5: configure ( success )
    Logs:
        - stdio: https://builder.sourceware.org/buildbot/#/builders/269/builds/4131/steps/5/logs/stdio

- 6: make html ( warnings )
    Logs:
        - stdio: https://builder.sourceware.org/buildbot/#/builders/269/builds/4131/steps/6/logs/stdio
        - warnings (67): https://builder.sourceware.org/buildbot/#/builders/269/builds/4131/steps/6/logs/warnings__67_

- 7: make regenerate-opt-urls ( success )
    Logs:
        - stdio: https://builder.sourceware.org/buildbot/#/builders/269/builds/4131/steps/7/logs/stdio

- 8: git diff_1 ( failure )
    Logs:
        - stdio: https://builder.sourceware.org/buildbot/#/builders/269/builds/4131/steps/8/logs/stdio