vsphere: environ_availzones invalid memory address or nil pointer dereference

As seen at
    http://reports.vapour.ws/releases/issue/57d808b1749a56567fd47cfd

Bootstrap failed

INFO juju.provider.vmware environ_availzones.go:118 found 1 zones: [{10.245.0.130 []}]
panic: runtime error: invalid memory address or nil pointer dereference
[signal 0xb code=0x1 addr=0x0 pc=0x1308884]

goroutine 1 [running]:
panic(0x2118980, 0xc8200140e0)
 /usr/lib/go-1.6/src/runtime/panic.go:464 +0x3e6
github.com/juju/govmomi/property.Wait(0x7f00ef775138, 0xc8201aa5f0, 0xc821cf8d98, 0xc82153c388, 0x4, 0xc82153c3b0, 0x9, 0xc82153c3e0, 0x1, 0x1, ...)
 /workspace/juju-core-2.0-rc1/src/github.com/juju/govmomi/property/wait.go:74 +0x734
github.com/juju/govmomi/task.Wait(0x7f00ef775138, 0xc8201aa5f0, 0xc82153c388, 0x4, 0xc82153c3b0, 0x9, 0xc821cf8d98, 0x0, 0x0, 0x0, ...)
 /workspace/juju-core-2.0-rc1/src/github.com/juju/govmomi/task/wait.go:120 +0x1bb
github.com/juju/govmomi/object.(*Task).WaitForResult(0xc821185f50, 0x7f00ef775138, 0xc8201aa5f0, 0x0, 0x0, 0x0, 0x0, 0x0)
 /workspace/juju-core-2.0-rc1/src/github.com/juju/govmomi/object/task.go:51 +0x1c7
github.com/juju/juju/provider/vsphere.(*client).CreateInstance(0xc82047b580, 0xc820401b10, 0xc821cf9200, 0xc821542f00, 0x0, 0x0)
 /workspace/juju-core-2.0-rc1/src/github.com/juju/juju/provider/vsphere/client.go:103 +0x24e
github.com/juju/juju/provider/vsphere.(*environ).newRawInstance(0xc82047c780, 0xc820393ef0, 0x24, 0x0, 0x0, 0x0, 0x0, 0xc82041d718, 0x0, 0x0, ...)
 /workspace/juju-core-2.0-rc1/src/github.com/juju/juju/provider/vsphere/environ_broker.go:146 +0xc28
github.com/juju/juju/provider/vsphere.(*environ).StartInstance(0xc82047c780, 0xc820393ef0, 0x24, 0x0, 0x0, 0x0, 0x0, 0xc82041d718, 0x0, 0x0, ...)
 /workspace/juju-core-2.0-rc1/src/github.com/juju/juju/provider/vsphere/environ_broker.go:42 +0x189
github.com/juju/juju/provider/common.BootstrapInstance(0x7f00ef782fc0, 0xc821d093d0, 0x7f00ef783990, 0xc82047c780, 0x7ffd73bc0860, 0x7, 0xc82044e3c7, 0x3, 0xc820393f20, 0x0, ...)
 /workspace/juju-core-2.0-rc1/src/github.com/juju/juju/provider/common/bootstrap.go:169 +0xcf6
github.com/juju/juju/provider/common.Bootstrap(0x7f00ef782fc0, 0xc821d093d0, 0x7f00ef783990, 0xc82047c780, 0x7ffd73bc0860, 0x7, 0xc82044e3c7, 0x3, 0xc820393f20, 0x0, ...)
 /workspace/juju-core-2.0-rc1/src/github.com/juju/juju/provider/common/bootstrap.go:45 +0x80
github.com/juju/juju/provider/vsphere.(*environ).Bootstrap(0xc82047c780, 0x7f00ef782fc0, 0xc821d093d0, 0x7ffd73bc0860, 0x7, 0xc82044e3c7, 0x3, 0xc820393f20, 0x0, 0x0, ...)
 /workspace/juju-core-2.0-rc1/src/github.com/juju/juju/provider/vsphere/environ.go:116 +0xb1
github.com/juju/juju/environs/bootstrap.Bootstrap(0x7f00ef782fc0, 0xc821d093d0, 0x7f00ef783990, 0xc82047c780, 0x0, 0x0, 0x0, 0x0, 0xc82041d718, 0x0, ...)
 /workspace/juju-core-2.0-rc1/src/github.com/juju/juju/environs/bootstrap/bootstrap.go:354 +0x13ac
github.com/juju/juju/cmd/juju/commands.bootstrapFuncs.Bootstrap(0x7f00ef782fc0, 0xc821d093d0, 0x7f00ef783990, 0xc82047c780, 0x0, 0x0, 0x0, 0x0, 0xc82041d718, 0x0, ...)
 /workspace/juju-core-2.0-rc1/src/github.com/juju/juju/cmd/juju/commands/bootstrap.go:265 +0x80
github.com/juju/juju/cmd/juju/commands.(*bootstrapFuncs).Bootstrap(0x39fcb08, 0x7f00ef782fc0, 0xc821d093d0, 0x7f00ef783990, 0xc82047c780, 0x0, 0x0, 0x0, 0x0, 0xc82041d718, ...)
 <autogenerated>:86 +0xfb
github.com/juju/juju/cmd/juju/commands.(*bootstrapCommand).Run(0xc8202a18c0, 0xc82029f310, 0x0, 0x0)
 /workspace/juju-core-2.0-rc1/src/github.com/juju/juju/cmd/juju/commands/bootstrap.go:736 +0x4e87
github.com/juju/juju/cmd/modelcmd.(*modelCommandWrapper).Run(0xc8203d2c60, 0xc82029f310, 0x0, 0x0)
 /workspace/juju-core-2.0-rc1/src/github.com/juju/juju/cmd/modelcmd/modelcommand.go:282 +0x4f
github.com/juju/juju/cmd/modelcmd.(*baseCommandWrapper).Run(0xc8202d7670, 0xc82029f310, 0x0, 0x0)
 /workspace/juju-core-2.0-rc1/src/github.com/juju/juju/cmd/modelcmd/base.go:308 +0xd4
github.com/juju/cmd.(*SuperCommand).Run(0xc82038d440, 0xc82029f310, 0x0, 0x0)
 /workspace/juju-core-2.0-rc1/src/github.com/juju/cmd/supercommand.go:456 +0x688
github.com/juju/cmd.Main(0x7f00ef77e1b0, 0xc82038d440, 0xc82029f310, 0xc82000a100, 0xe, 0xe, 0x2c984b0)
 /workspace/juju-core-2.0-rc1/src/github.com/juju/cmd/cmd.go:280 +0x2f0
github.com/juju/juju/cmd/juju/commands.main.Run(0x2c99d50, 0xc82000a0f0, 0xf, 0xf, 0x2600940)
 /workspace/juju-core-2.0-rc1/src/github.com/juju/juju/cmd/juju/commands/main.go:157 +0x850
github.com/juju/juju/cmd/juju/commands.Main(0xc82000a0f0, 0xf, 0xf, 0xc820000180)
 /workspace/juju-core-2.0-rc1/src/github.com/juju/juju/cmd/juju/commands/main.go:114 +0x48
main.main()
 /workspace/juju-core-2.0-rc1/src/github.com/juju/juju/cmd/juju/main.go:27 +0x3b
2016-09-13 09:53:36 ERROR Command '('juju', '--show-log', 'bootstrap', '--constraints', 'mem=2G', 'vsphere-deploy-trusty-amd64', 'vsphere/dc0', '--config', '/tmp/tmpFeapmb.yaml', '--default-model', 'vsphere-deploy-trusty-amd64', '--agent-version', '2.0-rc1', '--bootstrap-series', 'trusty')' returned non-zero exit status 2