☠ 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/7410

Build state: failed 'git diff ...' (failure)
Revision: 28b3812c9d81203ae3d6a5350d8f828f4e659e50
Worker: bb1-1
Build Reason: (unknown)
Blamelist: Andi Kleen <ak@gcc.gnu.org>, Andre Vehreschild <vehre@gcc.gnu.org>, GCC Administrator <gccadmin@gcc.gnu.org>, Gaius Mulley <gaiusmod2@gmail.com>, Georg-Johann Lay <avr@gjlay.de>, Haochen Jiang <haochen.jiang@intel.com>, Harald Anlauf <anlauf@gmx.de>, Jakub Jelinek <jakub@redhat.com>, Joern Rennecke <joern.rennecke@riscy-ip.com>, Kyrylo Tkachov <ktkachov@nvidia.com>, Lulu Cheng <chenglulu@loongson.cn>, Manolis Tsamis <manolis.tsamis@vrull.eu>, Patrick Palka <ppalka@redhat.com>, Richard Sandiford <richard.sandiford@arm.com>, Roger Sayle <roger@nextmovesoftware.com>, Wilken Gottwalt <wilken.gottwalt@posteo.net>, Xi Ruoyao <xry111@xry111.site>

Steps:

- 0: worker_preparation ( success )

- 1: git checkout ( success )
    Logs:
        - stdio: https://builder.sourceware.org/buildbot/#/builders/269/builds/7410/steps/1/logs/stdio

- 2: autoregen.py ( success )
    Logs:
        - stdio: https://builder.sourceware.org/buildbot/#/builders/269/builds/7410/steps/2/logs/stdio

- 3: git diff ( success )
    Logs:
        - stdio: https://builder.sourceware.org/buildbot/#/builders/269/builds/7410/steps/3/logs/stdio

- 4: mkdir objdir ( success )
    Logs:
        - stdio: https://builder.sourceware.org/buildbot/#/builders/269/builds/7410/steps/4/logs/stdio

- 5: configure ( success )
    Logs:
        - stdio: https://builder.sourceware.org/buildbot/#/builders/269/builds/7410/steps/5/logs/stdio

- 6: make html ( warnings )
    Logs:
        - stdio: https://builder.sourceware.org/buildbot/#/builders/269/builds/7410/steps/6/logs/stdio
        - warnings (82): https://builder.sourceware.org/buildbot/#/builders/269/builds/7410/steps/6/logs/warnings__82_

- 7: make regenerate-opt-urls ( success )
    Logs:
        - stdio: https://builder.sourceware.org/buildbot/#/builders/269/builds/7410/steps/7/logs/stdio

- 8: git diff_1 ( failure )
    Logs:
        - stdio: https://builder.sourceware.org/buildbot/#/builders/269/builds/7410/steps/8/logs/stdio