=> Bootstrap dependency digest>=20010302: found digest-20190127
=> Fetching opencv-3.4.8.tar.gz
=> Total size: 87343996 bytes
=> Checksum SHA1 OK for opencv-3.4.8.tar.gz
=> Checksum RMD160 OK for opencv-3.4.8.tar.gz
=> Checksum SHA512 OK for opencv-3.4.8.tar.gz