☠ Buildbot (Sourceware): gcc - failed update (failure) (master)

[builder--- via Gcc-testresults]

A new failure has been detected on builder gcc-fedora-s390x while building gcc.

Full details are available at:
    https://builder.sourceware.org/buildbot/#/builders/157/builds/13704

Build state: failed update (failure)
Revision: (unknown)
Worker: fedora-s390x
Build Reason: (unknown)
Blamelist: Jin Ma <ji...@linux.alibaba.com>

Steps:

- 0: worker_preparation ( success )

- 1: git checkout ( failure )
    Logs:
        - stdio: 
https://builder.sourceware.org/buildbot/#/builders/157/builds/13704/steps/1/logs/stdio