=> Bootstrap dependency digest>=20010302: found digest-20190127
=> Fetching book_1.02.pgn.gz
=> Total size: 26265281 bytes
=> Checksum SHA1 OK for book_1.02.pgn.gz
=> Checksum RMD160 OK for book_1.02.pgn.gz
=> Checksum SHA512 OK for book_1.02.pgn.gz