.NET Core installation is failing the build

Hi,

I’m using this .travis.yml config

language: csharp
mono: none
sudo: required
dist: xenial
dotnet: 2.2
jdk:
  - oraclejdk8
before_script:
  - chmod -R +x cli 
  - chmod -R +x scripts
  - cd scripts
script:
  - /bin/bash ./run-automation-pipeline.sh

This used to work, but now the build blocks at installing .NET Core and is terminated. Bellow is the Travis log output:

Installing .NET Core

$ export DOTNET_SKIP_FIRST_TIME_EXPERIENCE=1

$ export DOTNET_CLI_TELEMETRY_OPTOUT=1


No output has been received in the last 10m0s, this potentially indicates a stalled build or something wrong with the build itself.

Check the details on how to adjust your build configuration on: https://docs.travis-ci.com/user/common-build-problems/#Build-times-out-because-no-output-was-received

The build has been terminated

Thank you!