Avoid the frequently printed
hydra-queue-runner[10293]: system type `x86_64-linux': 2 active, 2 allowed, starting 0 builds
message. That information is only interesting when some build are actually started.
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7YBYT2LQML2PKEO6UO4444AGSASS664UCDXW2YO3ALB7THQHCEBQC
DQD7JMSUAPXKASPXUDXY4LCE6QCAZSGWNQYTOKNIQE6RRSRP4KGAC
SA5ZZ3I4SPTEEPJ5YE6JJA2DUPD4UTTC3APBNQL6XZW6PXYJRP6QC
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print "system type `", $system->system,
"': $nrActive active, $max allowed, ",
"starting ", scalar(@builds), " builds\n";
if (scalar(@builds) > 0) {
print "system type `", $system->system,
"': $nrActive active, $max allowed, ",
"starting ", scalar(@builds), " builds\n";
}