Travis CI ChromeDriver error

Worker information
hostname: travis-worker-gce-org-prod4-11:c43dad86-28c5-4ad8-8564-b0b66a934e14
version: v2.3.1-34-g4ab376b https://github.com/travis-ci/worker/tree/4ab376ba587e12cb465474238c78e88e6600aca2
instance: testing-gce-53d433d4-cb29-4f5b-a080-40b1f30a5809:travis-ci-jvm-precise-1471814223
startup: 21.43966629s
system_info
Build system information
Build language: java
Build group: stable
Build dist: precise
Build id: 163700267
Job id: 163700268
travis-build version: 9502f5ba3
Build image provisioning date and time
Sun Aug 21 21:33:22 UTC 2016
Operating System Details
Distributor ID:	Ubuntu
Description:	Ubuntu 12.04.5 LTS
Release:	12.04
Codename:	precise
Linux Version
3.13.0-92-generic
Cookbooks Version
f77e708 https://github.com/travis-ci/travis-cookbooks/tree/f77e708
Git version
git version 1.8.5.6
bash version
GNU bash, version 4.2.25(1)-release (x86_64-pc-linux-gnu)
Copyright (C) 2011 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software; you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
GCC version
gcc (Ubuntu/Linaro 4.6.3-1ubuntu5) 4.6.3
Copyright (C) 2011 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
LLVM versionm
clang version 3.4 (tags/RELEASE_34/final)
Target: x86_64-unknown-linux-gnu
Thread model: posix
Pre-installed Ruby versions
ruby-2.2.5
Pre-installed Node.js versions
v0.10.36
Pre-installed Go versions
1.4.2
mysql --version
mysql  Ver 14.14 Distrib 5.5.50, for debian-linux-gnu (x86_64) using readline 6.2
Pre-installed PostgreSQL versions
9.1.23
9.2.18
9.3.14
9.4.9
Redis version
redis-server 3.0.6
riak version
2.0.2
memcached version
1.4.13
MongoDB version
MongoDB 2.4.14
CouchDB version
couchdb 1.6.1
Neo4j version
1.9.4
Cassandra version
2.0.9
ElasticSearch version
1.4.0
Installed Sphinx versions
2.0.10
2.1.9
2.2.6
Default Sphinx version
2.2.6
Installed Firefox version
firefox 38.4.0esr
PhantomJS version
1.9.8
ant -version
Apache Ant(TM) version 1.8.2 compiled on December 3 2011
mvn -version
Apache Maven 3.2.5 (12a6b3acb947671f09b81f49094c53f426d8cea1; 2014-12-14T17:29:23+00:00)
Maven home: /usr/local/maven
Java version: 1.7.0_80, vendor: Oracle Corporation
Java home: /usr/lib/jvm/java-7-oracle/jre
Default locale: en, platform encoding: UTF-8
OS name: "linux", version: "3.13.0-92-generic", arch: "amd64", family: "unix"
gradle -version
------------------------------------------------------------
Gradle 2.2.1
------------------------------------------------------------
Build time:   2014-11-24 09:45:35 UTC
Build number: none
Revision:     6fcb59c06f43a4e6b1bcb401f7686a8601a1fb4a
Groovy:       2.3.6
Ant:          Apache Ant(TM) version 1.9.3 compiled on December 23 2013
JVM:          1.7.0_80 (Oracle Corporation 24.80-b11)
OS:           Linux 3.13.0-92-generic amd64
lein1 version
WARNING: You're currently running as root; probably by accident.
Press control-C to abort or Enter to continue as root.
Set LEIN_ROOT to disable this warning.
WARNING: You're currently running as root; probably by accident.
Press control-C to abort or Enter to continue as root.
Set LEIN_ROOT to disable this warning.
Downloading Leiningen now...
Using JLine for console I/O; install rlwrap for optimum experience.
Leiningen 1.7.1 on Java 1.7.0_80 Java HotSpot(TM) 64-Bit Server VM
lein2 version
WARNING: You're currently running as root; probably by accident.
Press control-C to abort or Enter to continue as root.
Set LEIN_ROOT to disable this warning.
Downloading Leiningen to /home/travis/.lein/self-installs/home/travis/.lein/leiningen-2.5.1-standalone.jar now...
Leiningen 2.5.1 on Java 1.7.0_80 Java HotSpot(TM) 64-Bit Server VM
lein version
WARNING: You're currently running as root; probably by accident.
Press control-C to abort or Enter to continue as root.
Set LEIN_ROOT to disable this warning.
Downloading Leiningen to /home/travis/.lein/self-installs/home/travis/.lein/leiningen-2.5.1-standalone.jar now...
Leiningen 2.5.1 on Java 1.7.0_80 Java HotSpot(TM) 64-Bit Server VM
fix.CVE-2015-7547
$ export DEBIAN_FRONTEND=noninteractive
W: Failed to fetch http://downloads-distro.mongodb.org/repo/debian-sysvinit/dists/dist/10gen/i18n/Translation-en_US  Unable to connect to downloads-distro.mongodb.org:http:
W: Failed to fetch http://downloads-distro.mongodb.org/repo/debian-sysvinit/dists/dist/10gen/i18n/Translation-en  Unable to connect to downloads-distro.mongodb.org:http:
E: Some index files failed to download. They have been ignored, or old ones used instead.
Reading package lists...
Building dependency tree...
Reading state information...
libc6 is already the newest version.
0 upgraded, 0 newly installed, 0 to remove and 63 not upgraded.
git.checkout
5.36s$ git clone --depth=50 --branch=master https://github.com/Thibstars/Bromine.git Thibstars/Bromine
Cloning into 'Thibstars/Bromine'...
remote: Counting objects: 946, done.
remote: Compressing objects: 100% (368/368), done.
remote: Total 946 (delta 667), reused 848 (delta 569), pack-reused 0
Receiving objects: 100% (946/946), 42.94 MiB | 19.77 MiB/s, done.
Resolving deltas: 100% (667/667), done.
Checking connectivity... done.
$ cd Thibstars/Bromine
$ git checkout -qf bf4633ed926ccd9c3c0dced560dfd69a7ab85085
$ jdk_switcher use oraclejdk8
Switching to Oracle JDK8 (java-8-oracle), JAVA_HOME will be set to /usr/lib/jvm/java-8-oracle
$ java -Xmx32m -version
java version "1.8.0_101"
Java(TM) SE Runtime Environment (build 1.8.0_101-b13)
Java HotSpot(TM) 64-Bit Server VM (build 25.101-b13, mixed mode)
$ javac -J-Xmx32m -version
javac 1.8.0_101
64.69s$ ant test
Buildfile: /home/travis/build/Thibstars/Bromine/build.xml
compile:
    [mkdir] Created dir: /home/travis/build/Thibstars/Bromine/build
    [javac] Compiling 26 source files to /home/travis/build/Thibstars/Bromine/build
    [mkdir] Created dir: /home/travis/build/Thibstars/Bromine/build/resources
     [copy] Copying 6 files to /home/travis/build/Thibstars/Bromine/build/resources
build:
    [mkdir] Created dir: /home/travis/build/Thibstars/Bromine/build/test
    [javac] Compiling 2 source files to /home/travis/build/Thibstars/Bromine/build/test
     [echo] Build done
run:
    [junit] Running NavigatorTests
    [junit] Testsuite: NavigatorTests
    [junit] Tests run: 0, Failures: 0, Errors: 1, Time elapsed: 61.254 sec
    [junit] Tests run: 0, Failures: 0, Errors: 1, Time elapsed: 61.254 sec
    [junit]
    [junit] ------------- Standard Error -----------------
    [junit] ERROR StatusLogger No log4j2 configuration file found. Using default configuration: logging only errors to the console.
    [junit] Starting ChromeDriver 2.24.417424 (c5c5ea873213ee72e3d0929b47482681555340c3) on port 5071
    [junit] Only local connections are allowed.
    [junit] ------------- ---------------- ---------------
    [junit] Testcase: NavigatorTests:	Caused an ERROR
    [junit] unknown error: Chrome failed to start: exited abnormally
    [junit]   (Driver info: chromedriver=2.24.417424 (c5c5ea873213ee72e3d0929b47482681555340c3),platform=Linux 3.13.0-92-generic x86_64) (WARNING: The server did not provide any stacktrace information)
    [junit] Command duration or timeout: 60.34 seconds
    [junit] Build info: version: '3.0.0-beta2', revision: '2aa21c1', time: '2016-08-02 15:03:28 -0700'
    [junit] System info: host: 'testing-gce-53d433d4-cb29-4f5b-a080-40b1f30a5809', ip: '127.0.1.1', os.name: 'Linux', os.arch: 'amd64', os.version: '3.13.0-92-generic', java.version: '1.8.0_101'
    [junit] Driver info: org.openqa.selenium.chrome.ChromeDriver
    [junit] org.openqa.selenium.WebDriverException: unknown error: Chrome failed to start: exited abnormally
    [junit]   (Driver info: chromedriver=2.24.417424 (c5c5ea873213ee72e3d0929b47482681555340c3),platform=Linux 3.13.0-92-generic x86_64) (WARNING: The server did not provide any stacktrace information)
    [junit] Command duration or timeout: 60.34 seconds
    [junit] Build info: version: '3.0.0-beta2', revision: '2aa21c1', time: '2016-08-02 15:03:28 -0700'
    [junit] System info: host: 'testing-gce-53d433d4-cb29-4f5b-a080-40b1f30a5809', ip: '127.0.1.1', os.name: 'Linux', os.arch: 'amd64', os.version: '3.13.0-92-generic', java.version: '1.8.0_101'
    [junit] Driver info: org.openqa.selenium.chrome.ChromeDriver
    [junit] 	at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
    [junit] 	at org.openqa.selenium.remote.ErrorHandler.createThrowable(ErrorHandler.java:206)
    [junit] 	at org.openqa.selenium.remote.ErrorHandler.throwIfResponseFailed(ErrorHandler.java:158)
    [junit] 	at org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:683)
    [junit] 	at org.openqa.selenium.remote.RemoteWebDriver.startSession(RemoteWebDriver.java:247)
    [junit] 	at org.openqa.selenium.remote.RemoteWebDriver.<init>(RemoteWebDriver.java:130)
    [junit] 	at org.openqa.selenium.remote.RemoteWebDriver.<init>(RemoteWebDriver.java:143)
    [junit] 	at org.openqa.selenium.chrome.ChromeDriver.<init>(ChromeDriver.java:170)
    [junit] 	at org.openqa.selenium.chrome.ChromeDriver.<init>(ChromeDriver.java:159)
    [junit] 	at org.openqa.selenium.chrome.ChromeDriver.<init>(ChromeDriver.java:148)
    [junit] 	at navigation.NavigatorFactory.createChromeNavigator(Unknown Source)
    [junit] 	at navigation.NavigatorFactory.createChromeNavigator(Unknown Source)
    [junit] 	at navigation.NavigatorFactory.createNavigator(Unknown Source)
    [junit] 	at navigation.NavigatorFactory.createNavigator(Unknown Source)
    [junit] 	at NavigatorTests.init(Unknown Source)
    [junit]
    [junit]
BUILD FAILED
/home/travis/build/Thibstars/Bromine/build.xml:51: Test NavigatorTests failed
Total time: 1 minute 4 seconds
The command "ant test" exited with 1.
Done. Your build exited with 1.