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

[builder--- via Gcc-testresults]

A new failure has been detected on builder gcc-autoregen while building gcc.

Full details are available at:
    https://builder.sourceware.org/buildbot/#/builders/269/builds/10139

Build state: failed 'git diff ...' (failure)
Revision: 92864116586aa1bb143f29ef4761f7efdfe48528
Worker: bbo2
Build Reason: (unknown)
Blamelist: Lulu Cheng <chengl...@loongson.cn>

Steps:

- 0: worker_preparation ( success )

- 1: git checkout ( success )
    Logs:
        - stdio: 
https://builder.sourceware.org/buildbot/#/builders/269/builds/10139/steps/1/logs/stdio

- 2: autoregen.py ( success )
    Logs:
        - stdio: 
https://builder.sourceware.org/buildbot/#/builders/269/builds/10139/steps/2/logs/stdio

- 3: git diff ( success )
    Logs:
        - stdio: 
https://builder.sourceware.org/buildbot/#/builders/269/builds/10139/steps/3/logs/stdio

- 4: mkdir objdir ( success )
    Logs:
        - stdio: 
https://builder.sourceware.org/buildbot/#/builders/269/builds/10139/steps/4/logs/stdio

- 5: configure ( success )
    Logs:
        - stdio: 
https://builder.sourceware.org/buildbot/#/builders/269/builds/10139/steps/5/logs/stdio

- 6: make html ( warnings )
    Logs:
        - stdio: 
https://builder.sourceware.org/buildbot/#/builders/269/builds/10139/steps/6/logs/stdio
        - warnings (124): 
https://builder.sourceware.org/buildbot/#/builders/269/builds/10139/steps/6/logs/warnings__124_

- 7: make regenerate-opt-urls ( success )
    Logs:
        - stdio: 
https://builder.sourceware.org/buildbot/#/builders/269/builds/10139/steps/7/logs/stdio

- 8: git diff_1 ( failure )
    Logs:
        - stdio: 
https://builder.sourceware.org/buildbot/#/builders/269/builds/10139/steps/8/logs/stdio