We use Mercurial for source control and have a central repository located on a server on the network that we access directly via the file system. I realize that this is not the recommended setup (ssh or https is preferred), but being on the LAN, the security concerns are not an issue.

The problem I have is that the following command WORKS from the command line:
hg clone \\MACHINENAME\Path\To\Repo

... but when I configure the Mercurial plugin to use this path, I get the following error:

Building in workspace C:\Program Files (x86)\Jenkins\workspace\TestProject
$ "C:\Program Files\TortoiseHG\hg.exe" --debug clone --rev default --noupdate \\MACHINENAME\Path\To\Repo "C:\Program Files (x86)\Jenkins\workspace\TestProject"
abort: repository \\MACHINENAME\Path\To\Repo not found!
ERROR: Failed to clone \\MACHINENAME\Path\To\Repo
ERROR: Failed to clone \\MACHINENAME\Path\To\Repo
Finished: FAILURE

I have of course replaced the paths. I have tried every combination of \ and / possible. However the fact that it works from the command-line and not from the plug-in makes me think it's a bug with the plug-in.

Is there a way to do what I'm trying to do without setting up SSH or HTTPS access to the repo?