Hi @jeroen and @jimhester,
Since 2018-12-13, I get the following error on multiple Travis MacOS builds for the R programming language (from this Travis log):
$ curl -fLo "/tmp/BasicTeX.pkg" --retry 3 http://mirror.ctan.org/systems/mac/mactex/BasicTeX.pkg
curl: (55) getpeername() failed with errno 22: Invalid argument
The command "curl -fLo "/tmp/BasicTeX.pkg" --retry 3 http://mirror.ctan.org/systems/mac/mactex/BasicTeX.pkg" failed and exited with 55 during .
The day before everything worked fine. The Linux build of the same package still works.
Good luck fixing it, Richel Bilderbeek