WIP: get Linux build to upload build artifacts

[JamesWTruher]

PR Summary

get Linux build to upload build artifacts Add additional output to assist with debugging if there is a problem

PR Checklist

• [x] PR has a meaningful title
  • Use the present tense and imperative mood when describing your changes
• [x] Summarized changes
• [x] Change is not breaking
• [x] Make sure all .cs, .ps1 and .psm1 files have the correct copyright header
• [ ] Make sure you've added a new test if existing tests do not effectively test the code changed and/or updated documentation
• [ ] This PR is ready to merge and is not Work in Progress.
  • If the PR is work in progress, please add the prefix WIP: to the beginning of the title and remove the prefix when the PR is ready.

[bergmeister]

Close and re-open to retrigger CI to check this still works

[bergmeister]

@JamesWTruher Shall we close this one as #1320 has the essential bits of this PR (fixing the build and uploading the tests work now again), the only thing that this PR would add are the additional verbose logs

[bergmeister]

Although the recently merged PR fixed the Ubuntu build it seems that it has lasted only a few days as AppVeyor updated their image with breaking changes again, will close and re-open to see if this branch is any different