mapbox/tilelive-mapnik — comment on commit 561fe445cdea788a9981e53a0bcdb4641187af93
File: lib/render.js line 135
By springmeyer:

any possibility this could result in resources held in `source` to not go out of scope normally and therefore memory usage to bloat?

* leaving no stone unturned :)

/cc @yhahn @kkaefer