cinst scriptcs failure

gistfile1.txt

C:\WINDOWS\system32>cinst scriptcs -pre -source https://www.myget.org/F/scriptcsnightly/
Chocolatey v0.9.9.8
Installing the following packages:
scriptcs
By installing you accept licenses for the packages.

scriptcs v0.15.0-nightly-150908
The package scriptcs wants to run 'chocolateyInstall.ps1'.
Note: If you don't run this script, the installation will fail.
Note: To confirm automatically next time, use '-y' or consider setting
 'allowGlobalConfirmation'. Run 'choco feature -h' for more details.
Do you want to run the script?
 1) yes
 2) no
 3) print
1
 Retrieving NuGet dependencies...
 Unable to find version '1.2.20906.2' of package 'Roslyn.Compilers.CSharp'.
 Remove-Item : Cannot find path 'C:\ProgramData\chocolatey\lib\scriptcs\tools\nugets' because it does not exist.
 At C:\ProgramData\chocolatey\lib\scriptcs\tools\chocolateyInstall.ps1:15 char:5
 'C:\Users\daplaist\AppData\Roaming\scriptcs' has been removed.
 +     Remove-Item $nugetPath -Recurse -Force
 'C:\Users\daplaist\AppData\Local\scriptcs' has been removed.
 +     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
     + CategoryInfo          : ObjectNotFound: (C:\ProgramData\...cs\tools\nugets:String) [Remove-Item], ItemNotFoundException
     + FullyQualifiedErrorId : PathNotFound,Microsoft.PowerShell.Commands.RemoveItemCommand
 WARNING: Write-ChocolateySuccess is deprecated. If you are the maintainer, please remove it from your package file.
The install of scriptcs was NOT successful.
Error while running 'C:\ProgramData\chocolatey\lib\scriptcs\tools\chocolateyInstall.ps1'.
 See log for details.

Chocolatey installed 0/1 package(s). 1 package(s) failed.
 See the log for details (C:\ProgramData\chocolatey\logs\chocolatey.log).
Failures:
 - scriptcs