=> Bootstrap dependency digest>=20010302: found digest-20190127
=> Fetching readr_1.3.1.tar.gz
=> Total size: 268853 bytes
=> Checksum SHA1 OK for R/readr_1.3.1.tar.gz
=> Checksum RMD160 OK for R/readr_1.3.1.tar.gz
=> Checksum SHA512 OK for R/readr_1.3.1.tar.gz