[crux-reports] Potentially broken source downloads

Port: /home/crux/git-to-rsync-working-copy/crux-3.5/contrib/r Url: https://cran.r-project.org/src/base/R-3/R-3.6.3.tar.gz Reason: curl: (52) Empty reply from server State: New Full report: http://crux.nu/files/check_urls.html