Here's the end of the log with the crash. I also attached the complete log.

Tests in error:
testRemovePermissionByNameCamel(org.bukkit.plugin.PluginManagerTest): java.lang.UnsatisfiedLinkError:
/usr/lib/jvm/java-8-oracle/jre/lib/amd64/libawt_xawt.so: libXrender.so.1: cannot open shared object fi
le: No such file or directory
testRemovePermissionByNameLower(org.bukkit.plugin.PluginManagerTest): Could not initialize class org.
bukkit.plugin.PluginManagerTest
testRemovePermissionByNameUpper(org.bukkit.plugin.PluginManagerTest): Could not initialize class org.
bukkit.plugin.PluginManagerTest
testAsyncLocked(org.bukkit.plugin.PluginManagerTest): Could not initialize class org.bukkit.plugin.Pl
uginManagerTest
testRemovePermissionByPermissionCamel(org.bukkit.plugin.PluginManagerTest): Could not initialize clas
s org.bukkit.plugin.PluginManagerTest
testRemovePermissionByPermissionUpper(org.bukkit.plugin.PluginManagerTest): Could not initialize clas
s org.bukkit.plugin.PluginManagerTest
testSyncSameThread(org.bukkit.plugin.PluginManagerTest): Could not initialize class org.bukkit.plugin
.PluginManagerTest
testAsyncUnlocked(org.bukkit.plugin.PluginManagerTest): Could not initialize class org.bukkit.plugin.
PluginManagerTest
testAsyncSameThread(org.bukkit.plugin.PluginManagerTest): Could not initialize class org.bukkit.plugi
n.PluginManagerTest
testSyncLocked(org.bukkit.plugin.PluginManagerTest): Could not initialize class org.bukkit.plugin.Plu
ginManagerTest
testSyncUnlocked(org.bukkit.plugin.PluginManagerTest): Could not initialize class org.bukkit.plugin.P
luginManagerTest

Tests run: 906, Failures: 0, Errors: 11, Skipped: 3

[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 2.978 s
[INFO] Finished at: 2015-01-05T07:27:45-05:00
[INFO] Final Memory: 15M/281M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-surefire-plugin:2.12.4:test (default-test
) on project bukkit: There are test failures.
[ERROR]
[ERROR] Please refer to /home/scrufdog/spigot2/Bukkit/target/surefire-reports for the individual test r
esults.
[ERROR] -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following article
s:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoFailureException
Exception in thread "main" java.lang.RuntimeException: Error running command, return status !=0: [sh, /
home/scrufdog/spigot2/apache-maven-3.2.3/bin/mvn, clean, install]
at org.spigotmc.builder.Builder.runProcess(Builder.java:388)
at org.spigotmc.builder.Builder.main(Builder.java:304)

.....

Similiar to an error I was recieving with BuildTools #19

I tried this is 2 different empty directories, same error. Tried to rerun BuildTools in one of those directories and the same error happened, just quicker.

This was on a freshly rebooted machine, already running Spigot and Bungeecord stable. 8GB total memory, about 4GB free. BuildTools was working fine until about 3 days ago. No changes to the system have been made.