started with timing option, will keep track of elapsed time
loading transposed graph...
transposed graph loaded (duration: PT1M38.291779679S).
loading revision timestamps...
Exception in thread "main" java.lang.OutOfMemoryError: Java heap space
        at it.unimi.dsi.fastutil.longs.LongBigArrays.newBigArray(LongBigArrays.java:212)
        at it.unimi.dsi.fastutil.io.BinIO.loadLongsBig(BinIO.java:3880)
        at it.unimi.dsi.fastutil.io.BinIO.loadLongsBig(BinIO.java:3900)
        at org.softwareheritage.graph.utils.FindEarliestRevision.main(FindEarliestRevision.java:45)