=> Bootstrap dependency digest>=20010302: found digest-20190127
=> Fetching curl_4.2.tar.gz
=> Total size: 667901 bytes
=> Checksum SHA1 OK for R/curl_4.2.tar.gz
=> Checksum RMD160 OK for R/curl_4.2.tar.gz
=> Checksum SHA512 OK for R/curl_4.2.tar.gz