[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.

Fri Sep  9 02:01:31 UTC 2016 - https://jenkins.debian.net/job/reproducible_builder_armhf_56/4022/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 20415 Sep  9 02:01 ./b1/gem_0.93.3-10_armhf.buildinfo on odu3a-armhf-rb.debian.net
-rw-r--r-- 1 jenkins jenkins 20415 Sep  9 00:22 ./b2/gem_0.93.3-10_armhf.buildinfo on ff2a-armhf-rb.debian.net