The server died with a segmentation fault
What it looks like in your log
Minecraft server exited with code 139
What causes it
Exit code 139 is a native crash without even a crash dump, the same family as an hs_err crash.
How to fix it
Update Java to the latest patch release, remove mods that bundle native libraries, and check the disk is not full (a full disk can also prevent the crash dump being written).
Not sure this is your problem? Paste your log and Roastd will tell you which of these it actually matched, and what else it found.
Check your own log