=> Bootstrap dependency digest>=20010302: found digest-20160304
=> Fetching mongo-c-driver-1.4.0.tar.gz
=> Total size: 5996538 bytes
ftp: Error retrieving file `404 Not Found'
fetch: Unable to fetch expected file mongo-c-driver-1.4.0.tar.gz
=> Checksum SHA1 OK for mongo-c-driver-1.4.0.tar.gz
=> Checksum RMD160 OK for mongo-c-driver-1.4.0.tar.gz
=> Checksum SHA512 OK for mongo-c-driver-1.4.0.tar.gz