Use absolute path for BUILD_DIR

1 job for tests in 12 minutes and 11 seconds (queued for 1 second)
Status Job ID Name Coverage
  Test Mail
failed #31328


Name Stage Failure
test_mail Test Mail
Identity added: /root/.ssh/key (ale@boiler)
stopping VM group 885c...
Uploading artifacts for failed job
Uploading artifacts...
/builds/ai3/config/build-31328/ansible.log: found 1 matching files and directories

/builds/ai3/config/build-31328/logs: found 4 matching files and directories

Uploading artifacts as "archive" to coordinator... ok
id=31328 responseStatus=201 Created token=WCsNxzcN
Cleaning up file based variables
ERROR: Job failed: exit code 1