Travis-CI is reporting that solr_wrapper certificate has expired

[joelakes]

I'm getting some test failures this week because of a certificate error when Travis-CI is setting up solr_wrapper:

rake aborted!
1522OpenSSL::SSL::SSLError: SSL_connect returned=1 errno=0 state=SSLv3 read server certificate B: certificate verify failed (certificate has expired)
1523/home/travis/build/joelakes/TCD-Hyrax-Web-App/vendor/bundle/ruby/2.5.0/gems/solr_wrapper-2.2.0/lib/solr_wrapper/configuration.rb:105:in `mirror_url'

All was working fine last week.

I tried updating my solr_wrapper gem to version 3.1.2 but got the same error.

I eventually got a workaround, by inserting a new mirror_url: https://archive.apache.org/dist/

Has the certificate expired? Anybody else having this issue?

Thanks,
Joe

travis log.txt