It looks like the upgrade actually completed, but the upgrade task failed.
Task ID: ServerTasks-3363
Task status: Failed
Task queued: Friday, October 30, 2015 9:23 AM
Task started: Friday, October 30, 2015 9:23 AM
Task duration: 2 seconds
Server version: 3.1.6+Branch.master.Sha.331b6019ef669b9186a7a8ce375dd9c1ea8c14fd
| == Running: Upgrade Tentacles ==
09:23:43 Info | 2 machines will be upgraded to the latest Tentacle version.
09:23:46 Error | At least one machine was not successfully upgraded.
|
| == Success: localhost-Import ==
09:23:44 Verbose | Octopus Deploy: Calamari version 3.1.1+Branch.master.Sha.0607d48ed0bfeed672ba23ffc568fddbae3d560d
09:23:45 Info | Running Tentacle version 3.1.6
09:23:45 Error | The given key was not present in the dictionary.
09:23:45 Verbose | The given key was not present in the dictionary.
| System.Collections.Generic.KeyNotFoundException: The given key was not present in the dictionary.
| at System.Collections.Generic.Dictionary`2.get_Item(TKey key)
| at Octopus.Server.Orchestration.Health.MachineHealthResult.FromScriptResult(Machine machine, ScriptResult result) in Y:\work\refs\tags\3.1.6\source\Octopus.Server\Orchestration\Health\MachineHealthResult.cs:line 28
| at Octopus.Server.Orchestration.Upgrade.UpgradeTaskController.UpgradeMachine(Machine machine) in Y:\work\refs\tags\3.1.6\source\Octopus.Server\Orchestration\Upgrade\UpgradeTaskController.cs:line 87
| Octopus.Server version 3.1.6 (3.1.6+Branch.master.Sha.331b6019ef669b9186a7a8ce375dd9c1ea8c14fd)
|
| == Success: localhost ==
09:23:44 Verbose | Octopus Deploy: Calamari version 3.1.1+Branch.master.Sha.0607d48ed0bfeed672ba23ffc568fddbae3d560d
09:23:45 Info | Running Tentacle version 3.1.6
09:23:45 Error | The given key was not present in the dictionary.
09:23:45 Verbose | The given key was not present in the dictionary.
| System.Collections.Generic.KeyNotFoundException: The given key was not present in the dictionary.
| at System.Collections.Generic.Dictionary`2.get_Item(TKey key)
| at Octopus.Server.Orchestration.Health.MachineHealthResult.FromScriptResult(Machine machine, ScriptResult result) in Y:\work\refs\tags\3.1.6\source\Octopus.Server\Orchestration\Health\MachineHealthResult.cs:line 28
| at Octopus.Server.Orchestration.Upgrade.UpgradeTaskController.UpgradeMachine(Machine machine) in Y:\work\refs\tags\3.1.6\source\Octopus.Server\Orchestration\Upgrade\UpgradeTaskController.cs:line 87
| Octopus.Server version 3.1.6 (3.1.6+Branch.master.Sha.331b6019ef669b9186a7a8ce375dd9c1ea8c14fd)
|
| == Failed: Summary ==
09:23:46 Info | OFFLINE:
09:23:46 Info | - localhost at https://localhost:10933/, error: The given key was not present in the dictionary.
09:23:46 Info | - localhost-Import at https://localhost:10933/, error: The given key was not present in the dictionary.
09:23:46 Fatal | One or more deployment targets were not upgraded. Please see the output log for details.