Build fails for R release version only

Hi,
in our project


we use travis. It started to fail yesterday in this commit:
https://travis-ci.org/dzhw/questionMetadataPreparation/builds/559965838?utm_source=github_status&utm_medium=notification
In order to help debugging it I altered the .travis.yml to use matrix builds.
It still fails for the R release version, but devel and oldrel work fine as you can see here:
https://travis-ci.org/dzhw/questionMetadataPreparation/builds/559980296
This is the error message I get:

3.87s$ curl -fLo /tmp/R-3.6.1-$(lsb_release -cs).xz https://travis-ci.rstudio.org/R-3.6.1-$(lsb_release -cs).xz

curl: (22) The requested URL returned error: 403 Forbidden

The command "eval curl -fLo /tmp/R-3.6.1-$(lsb_release -cs).xz https://travis-ci.rstudio.org/R-3.6.1-$(lsb_release -cs).xz " failed. Retrying, 2 of 3.

curl: (22) The requested URL returned error: 403 Forbidden

The command "eval curl -fLo /tmp/R-3.6.1-$(lsb_release -cs).xz https://travis-ci.rstudio.org/R-3.6.1-$(lsb_release -cs).xz " failed. Retrying, 3 of 3.

curl: (22) The requested URL returned error: 403 Forbidden

The command "eval curl -fLo /tmp/R-3.6.1-$(lsb_release -cs).xz https://travis-ci.rstudio.org/R-3.6.1-$(lsb_release -cs).xz " failed 3 times.

The command "curl -fLo /tmp/R-3.6.1-$(lsb_release -cs).xz https://travis-ci.rstudio.org/R-3.6.1-$(lsb_release -cs).xz" failed and exited with 22 during .

Your build has been stopped.

You find our config here:
https://travis-ci.org/dzhw/questionMetadataPreparation/jobs/559980298/config

I’ve been running builds against those three R versions and not noticed anything like that.

e.g. https://travis-ci.org/jayvdb/coala-bears/jobs/560316077#L852

My jobs are also on trusty. I can’t see the difference to explain why mine work and you build does not.

Thank you for your feedback. This must have been fixed somewhere already, as my builds today are working fine without any further changes in the configuration. Consider this topic solved.

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