From the Camel -- "The do FILE form use the value of FILE as a file name and executes the contents of the file as a perl script."

So I should be able to take the contents of your conf.conf file and run it through the Perl processor to see what the expected result should be.

$ perl -e "$a = 'a';sawoy@server3:~/test_do_issue$"
syntax error at -e line 1, near "="
Execution of -e aborted due to compilation errors.
waydream{}:tmp$
[download]

I don't think that the do is your problem. I suspect that the intreter doesn't know how to handle "sawoy@server3:~/test_do_issue$"....

Update -- fixed the quoting issue. Sigh, I gotta get a better prorof reader.