[Qa-jenkins-scm] reproducible-env-changes.log found

[jenkins at jenkins.debian.net]

A few entries per day are normal, a few dozens or hundreds probably not.

Sat May 21 08:51:50 UTC 2016 - https://jenkins.debian.net/job/reproducible_builder_amd64_2/39077/console encountered a problem: different packages were installed in the 1st+2nd builds and also in the 2nd+3rd build.
-rw-r--r-- 1 jenkins jenkins 15471 May 21 08:51 ./b1/openjdk-7_7u101-2.6.6-2_amd64.buildinfo on profitbricks-build5-amd64.debian.net
-rw-r--r-- 1 jenkins jenkins 15471 May 21 01:39 ./b2/openjdk-7_7u101-2.6.6-2_amd64.buildinfo on profitbricks-build1-amd64.debian.net