=> Bootstrap dependency digest>=20211023: found digest-20220214
=> Fetching requirements-parser-0.5.0.tar.gz
=> Total size: 11523 bytes
ftp: Error retrieving file `503 Backend unavailable, connection timeout'
fetch: Unable to fetch expected file requirements-parser-0.5.0.tar.gz
=> Checksum BLAKE2s OK for requirements-parser-0.5.0.tar.gz
=> Checksum SHA512 OK for requirements-parser-0.5.0.tar.gz