Failing TravisCI builds

[wleoncio]

Describe the bug

TravisCI builds for DIscBIO are failing

Steps to Reproduce

1. Access https://travis-ci.org/ocbe-uio/DIscBIO
2. Click on "restart build"

Expected behavior

A passing build.

Additional info

The last passing build was https://travis-ci.org/github/ocbe-uio/DIscBIO/builds/721646083. The only change between commit 0567683 and the next one (c7d9929) are a few lines on README.md. Maybe the new lines regarding BiocManager::install caused this?

P.S.: to check the difference between the two commits, run

git diff c7d99297a2dea98763d79248ffd0d675a3be64b5 0567683379186cf3b60a37f861932bb86696e04b

on a terminal at the DIscBIO working directory.

[wleoncio]

Asking for help on StackOverflow...

[wleoncio]

Here's an idea: switch to GitHub Actions or CircleCI. TravisCI has basically shut down it's open-source friendliness in 2020. According to rOpenSci, "Under the new management, open-source users started suffering from significant outages and backlogs, while being pushed towards the new enterprise product travis-ci.com (the original Travis service was hosted on travis-ci.org)". Moreover, they note that "[i]t is still unclear what exactly the new product will look like, perhaps it can still be useful, but with the direction the company is heading, we recommend exploring other options". I fully agree with that statement.