[Qa-jenkins-scm] reproducible-race-conditions.log found

[jenkins at jenkins.debian.net]

Sun Oct  4 19:57:59 UTC 2015 - Warning, package xnbd (id=44305) in testing on amd64 is probably already building at amd64_4/5424, while this is https://jenkins.debian.net/job/reproducible_builder_amd64_8/3844/.
Sun Oct  4 21:11:20 UTC 2015 - Warning, package foxyproxy (id=27683) in testing on amd64 is probably already building at amd64_1/4593, while this is https://jenkins.debian.net/job/reproducible_builder_amd64_4/5436/.
Sun Oct  4 21:42:48 UTC 2015 - Warning, package poster (id=38864) in testing on amd64 is probably already building at amd64_8/3865, while this is https://jenkins.debian.net/job/reproducible_builder_amd64_1/4604/.