CrOS: Replace broken slaves on ChromiumOS.

masters/master.chromiumos/slaves.cfg

 # Copyright (c) 2015 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import chromiumos_board_config
 
 from common.cros_chromite import ChromiteTarget
 from common.cros_chromite import SlaveType
 
 # Use the SlaveAlloctor declared in 'board_config'.
 sa = chromiumos_board_config.slave_allocator
 sa.LoadState(enforce=False)
 
 def shared(slave_type):
   return '%s_shared' % (slave_type,)
 
 # Baremetal slaves
-sa.AddPool(SlaveType.BAREMETAL, *('build%s-m2' % (n,) for n in (
+sa.AddPool(SlaveType.BAREMETAL, *('build%s-m2' % (n,) for n in set([
     85, 86, 87, 91, 92, 93, 112, 118, 141, 162, 174, 182,
     203, 263, 323, 326, 327
-)))
+]) - set([
+  91, # crbug.com/600599
+])))
 
 # GCE slaves
 sa.AddPool(SlaveType.GCE, *('cros%s-c2' % (n,) for n in (
     199,
 )))
 
 # Baremetal shared slave pool (e.g., build123-m2)
 sa.AddPool(shared(SlaveType.BAREMETAL), *('build%s-m2' % (n,) for n in (
     84, 94
 )))
@@ skipping 27 matching lines @@
                   for c in config_names],
       'hostname': str(hostname),
       'os': 'linux',
       'version': 'precise',
   }
 
 slaves = []
 slave_map = sa.GetSlaveMap()
 for hostname, entry in slave_map.entries.iteritems():
   slaves.append(GenSlave(hostname, entry.keys))