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

[builder--- via Gcc-testresults]

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/9811

Build state: failed 'git diff ...' (failure)
Revision: 56ded80b96b0f65327694912a6affbfc75e4e30d
Worker: bb1-2
Build Reason: (unknown)
Blamelist: Jan Hubicka <hubi...@ucw.cz>, Jonathan Wakely <jwak...@redhat.com>, 
Szabolcs Nagy <szabolcs.n...@arm.com>

Steps:

- 0: worker_preparation ( success )

- 1: git checkout ( success )
    Logs:
        - stdio: 
https://builder.sourceware.org/buildbot/#/builders/269/builds/9811/steps/1/logs/stdio

- 2: autoregen.py ( success )
    Logs:
        - stdio: 
https://builder.sourceware.org/buildbot/#/builders/269/builds/9811/steps/2/logs/stdio

- 3: git diff ( failure )
    Logs:
        - stdio: 
https://builder.sourceware.org/buildbot/#/builders/269/builds/9811/steps/3/logs/stdio