=> Bootstrap dependency digest>=20211023: found digest-20220214
=> Fetching Future-IO-0.16.tar.gz
=> Total size: 25652 bytes
ftp: Error retrieving file `404 Not Found'
fetch: Unable to fetch expected file Future-IO-0.16.tar.gz
=> Checksum BLAKE2s OK for Future-IO-0.16.tar.gz
=> Checksum SHA512 OK for Future-IO-0.16.tar.gz
=> Checksum BLAKE2s OK for Future-IO-0.16.tar.gz
=> Checksum SHA512 OK for Future-IO-0.16.tar.gz