message: Try to debug UE prereq failure.
diff: @@ -349,7 +349,8 @@ jobs:
  - pip3 install httpie
  - travis_wait 30 "./travis/travis-get-ue-500p1.sh"
  - df -k
  - - /c/Epic/UE_5.0/Engine/Extras/Redist/en-us/UEPrereqSetup_x64.exe //quiet //install //norestart
  + - /c/Epic/UE_5.0/Engine/Extras/Redist/en-us/UEPrereqSetup_x64.exe //quiet //install //norestart //log log.txt || echo failed
  + - cat log.txt
  - df -k
  before_script:
  - export CESIUM_UNREAL_VERSION=$(git describe)
  