Buildbot failure in Wildebeest Builder on whole buildset

[buildbot@builder.wildebeest.org]

The Buildbot has detected a new failure on builder gccrust-debian-arm64 while building gccrust.
Full details are available at:
    https://builder.wildebeest.org/buildbot/#builders/58/builds/1609

Buildbot URL: https://builder.wildebeest.org/buildbot/

Worker for this Build: debian-arm64

Build Reason: <unknown>
Blamelist: Philip Herron <philip.herron@embecosm.com>

BUILD FAILED: failed compile (failure)

Sincerely,
 -The Buildbot