Relax repo 404 "die" to just "warn and next" (darn cassandra, still in-progress)
Relax repo 404 "die" to just "warn and next" (darn cassandra, still in-progress)

dpwspoon/docs,dinogun/docs,mattrobenolt/docs,volmarl/docs,jperrin/docs,car031/docs,orientechnologies/docker-docs,caoyangs/docs,orientechnologies/docker-docs,emil10001/docs,leangjia/docs,bascht/docs,vmassol/docs,dictybase-docker/docs,mattrobenolt/docs,dictybase-docker/docs,hoelzro/docker-library-docs,bascht/docs,hecklerm/docs,chorrell/docs,pierreozoux/docs,avoinea/docs,docker-solr/docs,odoo/docker-docs,esmail/docs,ceejatec/docs,vmassol/docs,neo4j-contrib/docs,JacerOmri/docs,wallyqs/docs,sublimino/docs-1,tiagolo/docs,gprivitera/docs,docker-solr/docs,jetty-project/docker-docs,emilevauge/docs,car031/docs,wallyqs/docs,testshotagit/docs,mpichette/docs,testshotagit/docs,caoyangs/docs,volmarl/docs,hanwoody/docs,Scriptkiddi/docs,crate/docker-docs,pierreozoux/docs,crate/docker-docs,gprivitera/docs,jetty-project/docker-docs,dpwspoon/docs,avoinea/docs,vaygr/docker-library-docs,neo4j-contrib/docs,chaudum/docs,Lightstreamer/docs,pydio/docs,booyaa/docs,c0b/official-images-docs,leon/docker-docs,jakelly/docs,dancrumb/docs,yuriyf/docs,peterkuiper/docs,snailwalker/docs,tomitribe/docs,clakech/docs,pydio/docs,moander/docs,infosiftr/docker-library-docs,BastianHofmann/docs-1,JacerOmri/docs,docker-flink/docs,zhanggangbz/docs,tomitribe/docs,ros-infrastructure/docs,EIrwin/docs,alejdg/docs,yuriyf/docs,mpichette/docs,atyenoria/docs,EIrwin/docs,leangjia/docs,godu/docs,thaihau/docs,nats-io/docker-docs,31z4/docs,vaygr/docker-library-docs,alejdg/docs,dgageot/docs,jperrin/docs,booyaa/docs,tilosp-docker/library-docs,Bonitasoft-Community/docker_docs,emil10001/docs,dgageot/docs,Scriptkiddi/docs,odoo/docker-docs,tilosp-docker/library-docs,davidcurrie/docs,Bonitasoft-Community/docker_docs,c0b/docs,esmail/docs,Lightstreamer/docs,appropriate/docker-library-docs,docker-library/docs,godu/docs,docker-library/docs,sublimino/docs-1,tiagolo/docs,docker-flink/docs,infosiftr/docker-library-docs,leon/docker-docs,Acidburn0zzz/docs-5,zendtech/docs,zhanggangbz/docs,sandoracs/docs,sandoracs/docs,c0b/official-images-docs,dmetzler/docker-library-docs,31z4/docs,josegonzalez/docs,peterkuiper/docs,tfoote/docker-library-docs,appropriate/docker-library-docs,dancrumb/docs,davidcurrie/docs,ceejatec/docs,hecklerm/docs,atyenoria/docs,zendtech/docs,tfoote/docker-library-docs,c0b/docs,astawiarski/docs,hoelzro/docker-library-docs,dinogun/docs,emilevauge/docs,Acidburn0zzz/docs-5,jakelly/docs,josegonzalez/docs,snailwalker/docs,clakech/docs,BastianHofmann/docs-1,astawiarski/docs,BradleyA/docs,dmetzler/docker-library-docs,chorrell/docs,ros-infrastructure/docs,BradleyA/docs,nats-io/docker-docs,thaihau/docs,moander/docs,hanwoody/docs,chaudum/docs