Builder: eve-release

Builds:  https://chromegw.corp.google.com/i/chromeos/builders/eve-release/builds/620
         https://chromegw.corp.google.com/i/chromeos/builders/eve-release/builds/619

Logs from Archive phase of build#619:
[1;31m05:43:11: ERROR: <class 'chromite.lib.failures_lib.BuildScriptFailure'>: ./build_image failed (code=1)
Traceback (most recent call last):
  File "/b/cbuild/chromite/lib/parallel.py", line 441, in _Run
    self._task(*self._task_args, **self._task_kwargs)
  File "/b/cbuild/chromite/cbuildbot/stages/artifact_stages.py", line 206, in BuildAndArchiveFactoryImages
    alias = commands.BuildFactoryInstallImage(buildroot, board, extra_env)
  File "/b/cbuild/chromite/cbuildbot/commands.py", line 2051, in BuildFactoryInstallImage
    enter_chroot=True)
  File "/b/cbuild/chromite/cbuildbot/commands.py", line 138, in RunBuildScript
    raise failures_lib.BuildScriptFailure(ex, cmd[0])
  File "/b/cbuild/chromite/cbuildbot/commands.py", line 138, in RunBuildScript
    raise failures_lib.BuildScriptFailure(ex, cmd[0])
BuildScriptFailure: ./build_image failed (code=1)

Logs from Archive phase of build#620:
[1;31m13:21:44: ERROR: <class 'chromite.lib.failures_lib.BuildScriptFailure'>: ./build_image failed (code=1)
Traceback (most recent call last):
  File "/b/cbuild/chromite/lib/parallel.py", line 441, in _Run
    self._task(*self._task_args, **self._task_kwargs)
  File "/b/cbuild/chromite/cbuildbot/stages/artifact_stages.py", line 206, in BuildAndArchiveFactoryImages
    alias = commands.BuildFactoryInstallImage(buildroot, board, extra_env)
  File "/b/cbuild/chromite/cbuildbot/commands.py", line 2051, in BuildFactoryInstallImage
    enter_chroot=True)
  File "/b/cbuild/chromite/cbuildbot/commands.py", line 138, in RunBuildScript
    raise failures_lib.BuildScriptFailure(ex, cmd[0])
  File "/b/cbuild/chromite/cbuildbot/commands.py", line 138, in RunBuildScript
    raise failures_lib.BuildScriptFailure(ex, cmd[0])
BuildScriptFailure: ./build_image failed (code=1)