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/1579

Build state: failed 'git diff ...' (failure)
Revision: b3ec98d458f2b285bb7b3fa4fcd93fd830fee069
Worker: bb1-1
Build Reason: (unknown)
Blamelist: Andrew Pinski <quic_apinski@quicinc.com>, Arsen Arsenović <arsen@aarsen.me>, David Malcolm <dmalcolm@redhat.com>, Feng Wang <wangfeng@eswincomputing.com>, GCC Administrator <gccadmin@gcc.gnu.org>, Harald Anlauf <anlauf@gmx.de>, Jakub Jelinek <jakub@redhat.com>, Juzhe-Zhong <juzhe.zhong@rivai.ai>, Ken Matsui <kmatsui@gcc.gnu.org>, Kito Cheng <kito.cheng@sifive.com>, Kuan-Lin Chen <rufus@andestech.com>, Kwok Cheung Yeung <kcy@codesourcery.com>, Li Wei <liwei@loongson.cn>, Pan Li <pan2.li@intel.com>, Patrick Palka <ppalka@redhat.com>, Raiki Tamura <tamaron1203@gmail.com>, Roger Sayle <roger@nextmovesoftware.com>, Sandra Loosemore <sandra@codesourcery.com>, YunQiang Su <syq@gcc.gnu.org>, chenxiaolong <chenxiaolong@loongson.cn>

Steps:

- 0: worker_preparation ( success )

- 1: git checkout ( success )
    Logs:
        - stdio: https://builder.sourceware.org/buildbot/#/builders/269/builds/1579/steps/1/logs/stdio

- 2: autoregen.py ( success )
    Logs:
        - stdio: https://builder.sourceware.org/buildbot/#/builders/269/builds/1579/steps/2/logs/stdio

- 3: git diff ( failure )
    Logs:
        - stdio: https://builder.sourceware.org/buildbot/#/builders/269/builds/1579/steps/3/logs/stdio