=> Bootstrap dependency digest>=20010302: found digest-20160304
=> Fetching squid-3.5.21.tar.xz
=> Total size: 2320896 bytes
ftp: Error retrieving file `404 Not Found'
fetch: Unable to fetch expected file squid-3.5.21.tar.xz
Failed to open file.
fetch: Unable to fetch expected file squid-3.5.21.tar.xz
=> Checksum SHA1 OK for squid-3.5.21.tar.xz
=> Checksum RMD160 OK for squid-3.5.21.tar.xz
=> Checksum SHA512 OK for squid-3.5.21.tar.xz