https://bamboo.community.atlassian.com/rest/api/latest/build/CONFTRIGGER-TRUNK?expand=builds[0].build.artifacts

<artifact>
<name>Build log</name>
<link rel="self" href="http://bamboo.community.atlassian.comdownload/CONFTRIGGER-TRUNK/buildSummary_logs/CONFTRIGGER-TRUNK-1553.log"/>
</artifact>

1. It seems like the rest of the URL has problems too. Should be build_logs instead of buildSummary_logs.
2. And the UI calls the artifact Build Logs, but the artifact as know to REST is Build log. I think the UI should be changed as it really should be singular.