TFS Web Deploy doesn't execute via Build but executes locally?

I have a solution that I am trying to get TFS 2010 to deploy after it builds.

When I run the following msbuild command locally, it deploys fine:

msbuild C:\Path\to\Solution.sln /p:DeployOnBuild=True /p:DeployTarget=MsDeployPublish /p:CreatePackageOnPublish=True /p:MSDeployPublishMethod=WMSVC /p:MSDeployServiceUrl=https://[Server]:8172/MsDeploy.axd /p:DeployIisAppPath="TestSite" /p:UserName=Domain\Username /p:Password=NotTheRealPassword /P:AllowUntrustedCertificate=True

However, when I stick those same options into the TFS 2010 build MS Build arguments:

...it doesn't appear to execute anything.

The build finishes correctly:

But I see nothing in the entire log file related to deployment, etc. It's as if the parameters were never even passed in to MSBuild from TFS.

The MSBuild Command Being Called by TFS

The log has it as (scrubbed sensitive data): C:\Windows\Microsoft.NET\Framework64\v4.0.30319\MSBuild.exe /nologo /noconsolelogger "C:\Builds\1\[Scrubbed]\Daily6am\Sources\[Scrubbed].sln" /m:1 /fl /flp:"logfile=C:\Builds\1\[Scrubbed]\[Scrubbed]\Sources\[Scrubbed].log;encoding=Unicode;verbosity=normal" /p:SkipInvalidConfigurations=true /p:DeployOnBuild=True /p:DeployTarget=MsDeployPublish /p:CreatePackageOnPublish=True /p:MSDeployPublishMethod=WMSVC /p:MSDeployServiceUrl=https://[Scrubbed]:8172/MsDeploy.axd /p:DeployIisAppPath="TestSite" /p:UserName=[Scrubbed]\farmservice /p:Password=[Scrubbed] /p:AllowUntrusted=True /P:AllowUntrustedCertificate=True /p:OutDir="C:\Builds\1\[Scrubbed]\[Scrubbed]\Binaries\\" /p:Configuration="Debug" /p:Platform="Any CPU" /p:VCBuildOverride="C:\Builds\1\[Scrubbed]\[Scrubbed]\Sources\[Scrubbed].sln.Any CPU.Debug.vsprops" /dl:WorkflowCentralLogger,"C:\Program Files\Microsoft Team Foundation Server 2010\Tools\Microsoft.TeamFoundation.Build.Server.Logger.dll";"Verbosity=Normal;BuildUri=vstfs:///Build/Build/23;InformationNodeId=4504;TargetsNotLogged=GetNativeManifest,GetCopyToOutputDirectoryItems,GetTargetPath;TFSUrl=http://[Scrubbed]:8080/tfs/[Scrubbed]_Collection;"*WorkflowForwardingLogger,"C:\Program Files\Microsoft Team Foundation Server 2010\Tools\Microsoft.TeamFoundation.Build.Server.Logger.dll";"Verbosity=Normal;"