Update javalint.sh to detect errors

* Searching for "error:"
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latest
Status Job ID Name Coverage
  Test
failed #5678
test:java-lint

00:00:09

 
Name Stage Failure
failed
test:java-lint Test There is an unknown failure, please try again
ERROR: Preparation failed: error during connect: Get http://%2Fvar%2Frun%2Fdocker.sock/v1.18/info: read unix @->/var/run/docker.sock: read: connection reset by peer
Will be retried in 3s ...
Using Docker executor with image openjdk:7u131-jdk ...
ERROR: Preparation failed: error during connect: Get http://%2Fvar%2Frun%2Fdocker.sock/v1.18/info: read unix @->/var/run/docker.sock: read: connection reset by peer
Will be retried in 3s ...
Using Docker executor with image openjdk:7u131-jdk ...
ERROR: Preparation failed: Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?
Will be retried in 3s ...
ERROR: Job failed (system failure): Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?