You can have environment variables per job, but there ought to be a semi-colon in there

* */6 * * * DBUILDER_DIR=/home/indy/source/dbuilder;$DBUILDER_DIR/spam
+burglar.pl
[download]

If it on a non-job line it becomes available to all jobs.

--
perl -p -e "s/(?:\w);([st])/'\$1/mg"