=> Bootstrap dependency digest>=20010302: found digest-20160304
=> Fetching b2sum-20160619-20160619.tar.gz
=> Total size: 462704 bytes
ftp: Error retrieving file `404 Not Found'
fetch: Unable to fetch expected file b2sum-20160619-20160619.tar.gz
=> Checksum SHA1 OK for b2sum-20160619-20160619.tar.gz
=> Checksum RMD160 OK for b2sum-20160619-20160619.tar.gz
=> Checksum SHA512 OK for b2sum-20160619-20160619.tar.gz