☝ Buildbot (Sourceware): gcc - worker not available (master)

[builder--- via Gcc-testresults]

A retry build has been detected on builder gcc-fullest-debian-amd64 while 
building gcc.

Full details are available at:
    https://builder.sourceware.org/buildbot/#/builders/312/builds/1599

Build state: worker not available
Revision: (unknown)
Worker: bb3
Build Reason: (unknown)
Blamelist: H.J. Lu <hjl.to...@gmail.com>

Steps:

- 0: worker_preparation ( exception )
    Logs:
        - err.text: 
https://builder.sourceware.org/buildbot/#/builders/312/builds/1599/steps/0/logs/err_text
        - err.html: 
https://builder.sourceware.org/buildbot/#/builders/312/builds/1599/steps/0/logs/err_html