=> Bootstrap dependency digest>=20010302: found digest-20190127
=> Fetching libSystem-0.4.2.tar.gz
=> Total size: 49555 bytes
=> Checksum SHA1 OK for libSystem-0.4.2.tar.gz
=> Checksum RMD160 OK for libSystem-0.4.2.tar.gz
=> Checksum SHA512 OK for libSystem-0.4.2.tar.gz