Tests failing after switch from Thucydides to Serenity

[cpswan]

I've been using this repo as part of Jenkins training, so it gets built a lot.

Jenkins: 2.46.1 (and 2.92)
JDK: 8u152
Maven: 3.3.9 (also tried 3.5.2 despite previously seeing issues with 3.5.0)

All of the above runs within a Docker container on the excellent Katacoda training platform.

Full Jenkins console log at this gist, but here are the highlights:

###First warning

-------------------------------------------------------
 T E S T S
-------------------------------------------------------

Results :

Tests run: 0, Failures: 0, Errors: 0, Skipped: 0

[JENKINS] Recording test results[INFO] 
[INFO] --- jacoco-maven-plugin:0.7.2.201409121644:report (jacoco-site) @ gameoflife-web ---
[INFO] Analyzed bundle 'gameoflife-web' with 2 classes

[INFO] 
[INFO] --- serenity-maven-plugin:1.8.3:aggregate (serenity-reports) @ gameoflife-web ---
[INFO] Downloading: https://repo.maven.apache.org/maven2/net/serenity-bdd/serenity-core/1.8.3/serenity-core-1.8.3.pom
[WARNING] The POM for net.serenity-bdd:serenity-core:jar:1.8.3 is missing, no dependency information available
[INFO] Downloading: https://repo.maven.apache.org/maven2/org/apache/maven/maven-core/3.5.0/maven-core-3.5.0.pom

Second warning

[WARNING] Failed to getClass for net.serenitybdd.maven.plugins.SerenityAggregatorMojo
[INFO] ------------------------------------------------------------------------
[INFO] Reactor Summary:
[INFO] 
[INFO] gameoflife ......................................... SUCCESS [ 25.745 s]
[INFO] gameoflife-build ................................... SUCCESS [  8.837 s]
[INFO] gameoflife-core .................................... SUCCESS [ 16.027 s]
[INFO] gameoflife-web ..................................... FAILURE [ 12.775 s]
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 01:08 min
[INFO] Finished at: 2017-12-13T19:50:16+00:00
[INFO] Final Memory: 35M/85M
[INFO] ------------------------------------------------------------------------

Error

Waiting for Jenkins to finish collecting data[ERROR] Failed to execute goal net.serenity-bdd.maven.plugins:serenity-maven-plugin:1.8.3:aggregate (serenity-reports) on project gameoflife-web: Execution serenity-reports of goal net.serenity-bdd.maven.plugins:serenity-maven-plugin:1.8.3:aggregate failed: Plugin net.serenity-bdd.maven.plugins:serenity-maven-plugin:1.8.3 or one of its dependencies could not be resolved: Could not find artifact net.serenity-bdd:serenity-core:jar:1.8.3 in central (https://repo.maven.apache.org/maven2) -> [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 articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/PluginResolutionException
[ERROR] 
[ERROR] After correcting the problems, you can resume the build with the command
[ERROR]   mvn <goals> -rf :gameoflife-web
JENKINS] Archiving /var/jenkins_home/workspace/GameOfLife/gameoflife-build/pom.xml to com.wakaleo.gameoflife/gameoflife-build/1.0-SNAPSHOT/gameoflife-build-1.0-SNAPSHOT.pom
[JENKINS] Archiving /var/jenkins_home/workspace/GameOfLife/gameoflife-build/target/gameoflife-build-1.0-SNAPSHOT.jar to com.wakaleo.gameoflife/gameoflife-build/1.0-SNAPSHOT/gameoflife-build-1.0-SNAPSHOT.jar
[JENKINS] Archiving /var/jenkins_home/workspace/GameOfLife/pom.xml to com.wakaleo.gameoflife/gameoflife/1.0-SNAPSHOT/gameoflife-1.0-SNAPSHOT.pom
[JENKINS] Archiving /var/jenkins_home/workspace/GameOfLife/gameoflife-core/pom.xml to com.wakaleo.gameoflife/gameoflife-core/1.0-SNAPSHOT/gameoflife-core-1.0-SNAPSHOT.pom
[JENKINS] Archiving /var/jenkins_home/workspace/GameOfLife/gameoflife-core/target/gameoflife-core-1.0-SNAPSHOT.jar to com.wakaleo.gameoflife/gameoflife-core/1.0-SNAPSHOT/gameoflife-core-1.0-SNAPSHOT.jar
[JENKINS] Archiving /var/jenkins_home/workspace/GameOfLife/gameoflife-web/pom.xml to com.wakaleo.gameoflife/gameoflife-web/1.0-SNAPSHOT/gameoflife-web-1.0-SNAPSHOT.pom
[JENKINS] Archiving /var/jenkins_home/workspace/GameOfLife/gameoflife-web/target/gameoflife.war to com.wakaleo.gameoflife/gameoflife-web/1.0-SNAPSHOT/gameoflife-web-1.0-SNAPSHOT.war
channel stopped
Archiving artifacts
Finished: FAILURE

I'm going to try backing up to before the Updated dependencies commit from 4 Dec 2017, but I'm pretty sure that will fix it as everything's been fine before.