Haskell Stack snaps help

I’m trying to get any snap working with Haskell Stack. I created an example I created using stack new and a basic snapcraft.yaml but I’m getting an error with tar when installing Haskell Stack.

Here is the repo: https://github.com/dmp1ce/snapcraft-stack-example

Here is the snapcraft file: https://github.com/dmp1ce/snapcraft-stack-example/blob/master/snap/snapcraft.yaml

Here is the error I’m getting when running snapcraft:

Downloaded ghc-8.6.5.                                                                                                  
Received ExitFailure (-15) when running                                                                                                                                                                                                       
Raw command: /bin/tar Jxf /root/.stack/programs/x86_64-linux/ghc-8.6.5.tar.xz                   
Run from: /root/.stack/programs/x86_64-linux/ghc-8.6.5.temp/
Error: Error encountered while unpacking GHC with    
         tar Jxf /root/.stack/programs/x86_64-linux/ghc-8.6.5.tar.xz        
         run in /root/.stack/programs/x86_64-linux/ghc-8.6.5.temp/
       The following directories may now contain files, but won't be used by stack:
         - /root/.stack/programs/x86_64-linux/ghc-8.6.5.temp/
         - /root/.stack/programs/x86_64-linux/ghc-8.6.5/                                                               
       For more information consider rerunning with --verbose flag               
Unpacking GHC into /root/.stack/programs/x86_64-linux/ghc-8.6.5.temp/ ...
Failed to run 'override-build': Exit code was 1.
Run the same command again with --debug to shell into the environment if you wish to introspect this failure.
An error occurred when trying to execute 'sudo -i env SNAPCRAFT_HAS_TTY=True snapcraft snap' with 'multipass': returned exit code 2.

Any help getting the build to work would be appreciated.

There is also an issue on Github which may be what is causing the error: https://github.com/commercialhaskell/stack/issues/4888

Stack was fixed recently so I’m no longer having this issue.