=> Bootstrap dependency digest>=20010302: found digest-20190127
=> Fetching luminance-hdr-2.4.0.tar.bz2
=> Total size: 10507522 bytes
ftp: Error retrieving file `503 Backend unavailable, connection failed'
fetch: Unable to fetch expected file luminance-hdr-2.4.0.tar.bz2
=> Checksum SHA1 OK for luminance-hdr-2.4.0.tar.bz2
=> Checksum RMD160 OK for luminance-hdr-2.4.0.tar.bz2
=> Checksum SHA512 OK for luminance-hdr-2.4.0.tar.bz2