☠ 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/18734

Build state: failed 'git diff ...' (failure)
Revision: 40d6dbf0f8dd91db5e4c13187fc341cdef40b054
Worker: bbo1-1
Build Reason: (unknown)
Blamelist: Andrew Pinski <andrew.pinski@oss.qualcomm.com>, Antoni Boucher <bouanto@zoho.com>, Ashley Gay <gay@adacore.com>, Avinash Jayakar <avinashd@linux.ibm.com>, Eric Botcazou <ebotcazou@adacore.com>, GCC Administrator <gccadmin@gcc.gnu.org>, Jeff Law <jlaw@ventanamicro.com>, Josef Melcr <jmelcr02@gmail.com>, Olivier Hainque <hainque@adacore.com>, Richard Biener <rguenther@suse.de>, Srinath Parvathaneni <srinath.parvathaneni@arm.com>, Svante Signell <svante.signell@gmail.com>, Takayuki 'January June' Suwa <jjsuwa_sys3175@yahoo.co.jp>, Thomas Schwinge <tschwinge@baylibre.com>, Tomasz Kamiński <tkaminsk@redhat.com>, Yuao Ma <c8ef@outlook.com>

Steps:

- 0: worker_preparation ( success )

- 1: git checkout ( success )
    Logs:
        - stdio: https://builder.sourceware.org/buildbot/#/builders/269/builds/18734/steps/1/logs/stdio

- 2: autoregen.py ( success )
    Logs:
        - stdio: https://builder.sourceware.org/buildbot/#/builders/269/builds/18734/steps/2/logs/stdio

- 3: git diff ( success )
    Logs:
        - stdio: https://builder.sourceware.org/buildbot/#/builders/269/builds/18734/steps/3/logs/stdio

- 4: mkdir objdir ( success )
    Logs:
        - stdio: https://builder.sourceware.org/buildbot/#/builders/269/builds/18734/steps/4/logs/stdio

- 5: configure ( success )
    Logs:
        - stdio: https://builder.sourceware.org/buildbot/#/builders/269/builds/18734/steps/5/logs/stdio

- 6: make html ( warnings )
    Logs:
        - stdio: https://builder.sourceware.org/buildbot/#/builders/269/builds/18734/steps/6/logs/stdio
        - warnings (122): https://builder.sourceware.org/buildbot/#/builders/269/builds/18734/steps/6/logs/warnings__122_

- 7: make regenerate-opt-urls ( success )
    Logs:
        - stdio: https://builder.sourceware.org/buildbot/#/builders/269/builds/18734/steps/7/logs/stdio

- 8: git diff_1 ( failure )
    Logs:
        - stdio: https://builder.sourceware.org/buildbot/#/builders/269/builds/18734/steps/8/logs/stdio