Process 'command 'docker'' finished with non-zero exit value 2

[derekzhan]

[root@iZm5ebsr4q0r4pplzfskpaZ complete]# ./gradlew build docker -x test

Task :docker FAILED
flag provided but not defined: --build-arg
See 'docker build --help'.

FAILURE: Build failed with an exception.

• What went wrong:
  Execution failed for task ':docker'.

Process 'command 'docker'' finished with non-zero exit value 2

• Try:
  Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

• Get more help at https://help.gradle.org

BUILD FAILED in 1s
7 actionable tasks: 3 executed, 4 up-to-date

[dsyer]

Probably to do with dockerhub authentication. We don't use the docker plugin any more though, so I think this is obsolete.