Input buildinfo: https://buildinfos.debian.net/buildinfo-pool/k/keystone/keystone_20.0.0-3_all.buildinfo
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New buildinfo file: /tmp/keystone-20.0.0-38pebfefd/keystone_20.0.0-3_all.buildinfo
Get source package info: keystone=2:20.0.0-3
Source URL: http://snapshot.notset.fr/mr/package/keystone/2:20.0.0-3/srcfiles?fileinfo=1
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