I updated a Docker container from Ubuntu 19.10 to Ubuntu 20.04, and now svn checkouts are failing:

Step 11/12 : RUN svn checkout https://svn.cactuscode.org/projects/ExternalLibraries/hwloc/trunk
---> Running in c8f5b0058679
svn: E170013: Unable to connect to a repository at URL 'https://svn.cactuscode.org/projects/ExternalLibraries/hwloc/trunk' returned a non-zero code: 1

The internet tells me that this might be caused by old SSL libraries on the server which newer SVN versions refuse to use.

Things work when I downgrade to Ubuntu 19.10.

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Ticket URL: https://bitbucket.org/einsteintoolkit/tickets/issues/2415/cannot-checkout-svn-repos-with-ubuntu-2004