=> Bootstrap dependency digest>=20010302: found digest-20160304
=> Fetching otp_src_20.3.tar.gz
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=> Checksum SHA1 OK for erlang/otp_src_20.3.tar.gz
=> Checksum RMD160 OK for erlang/otp_src_20.3.tar.gz
=> Checksum SHA512 OK for erlang/otp_src_20.3.tar.gz