It happens from time to time so I assume it's a node's problem
https://builds.apache.org/job/Struts-master-JDK7/75/
{noformat}
Downloading from central: https://repo.maven.apache.org/maven2/org/testng/testng/5.14.10/testng-5.14.10.pom
[WARNING] Failed to create parent directories for tracking file /home/jenkins/.m2/repository/org/testng/testng/5.14.10/testng-5.14.10.pom.lastUpdated
{noformat}
https://builds.apache.org/job/Struts-master-JDK7/75/
{noformat}
Downloading from central: https://repo.maven.apache.org/maven2/org/testng/testng/5.14.10/testng-5.14.10.pom
[WARNING] Failed to create parent directories for tracking file /home/jenkins/.m2/repository/org/testng/testng/5.14.10/testng-5.14.10.pom.lastUpdated
{noformat}