[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 Apr  2 22:13:42 UTC 2016 - https://jenkins.debian.net/job/reproducible_builder_armhf_26/2602/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 11905 Apr  2 22:13 ./b1/jasperreports_6.1.1+dfsg-4_armhf.buildinfo on opi2a-armhf-rb.debian.net
-rw-r--r-- 1 jenkins jenkins 11905 Apr  2 19:01 ./b2/jasperreports_6.1.1+dfsg-4_armhf.buildinfo on ff2a-armhf-rb.debian.net