==> Synchronizing chroot copy [/chroot/x86_64/root] -> [build]...done
==> Making package: rsakeyfind 1.0-3 (Mon Mar  4 21:37:35 2019)
==> Retrieving sources...
  -> Downloading rsakeyfind-1.0.tar.gz...
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed

  0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
  0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0

  0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
curl: (22) The requested URL returned error: 404 
==> ERROR: Failure while downloading http://citp.princeton.edu/memory-content/src/rsakeyfind-1.0.tar.gz
    Aborting...
==> ERROR: Could not download sources.