=> Bootstrap dependency digest>=20010302: found digest-20160304
=> Fetching highway-1.1.0.tar.gz
=> Total size: 319516 bytes
ftp: Error retrieving file `404 Not Found'
fetch: Unable to fetch expected file highway-1.1.0.tar.gz
=> Checksum SHA1 OK for highway-1.1.0.tar.gz
=> Checksum RMD160 OK for highway-1.1.0.tar.gz
=> Checksum SHA512 OK for highway-1.1.0.tar.gz