AW: Build hangs

[jhm]

Our nightly job is not working right since 30.06.2018 ...
https://builds.apache.org/view/A/view/Ant/job/Ant_Nightly


#9​34   30.06.2018 16:54  @H21   last successful build
  job config changed
    2018-07-01_09-22-35 
      by:   SYSTEM
      what: update plugins: rebuild@1.27->1.28, git@3.7.0->3.9.1, 
analysis-core@1.94->1.95, warnings@4.65->4.88
    2018-07-01_10-42-28
      by:   SYSTEM
      what: change xml-version from 1.0 to 1.1
#9​36   02.07.2018 11:46  @H23   cancelled, stucks at 'Archiving artifacts'
#9​37   03.07.2018 19:08  @H33   cancelled, stucks at 'Archiving artifacts'
#9​38   04.07.2018 04:57  @H20   cancelled, stucks at 'Archiving artifacts'
#9​39   06.07.2018 17:58  @H32   cancelled, stucks at 'Archiving artifacts'
#9​40   08.07.2018 15:11  @H21   failure, Agent went offline during the build
#9​41   09.07.2018 18:02  @H21   running, stucks at 'Archiving artifacts'

Job #935 is not available any more. I think it's the same as with #936 and 
therefore deleted (max 5 failed builds).

The real work (build, checks) is done right, but after that, the "archiving 
artifacts" doesn't work.
I don't have access to any system logs, so I can't see any possible reason.

I don't believe, that the job config changes by the system upgrade are 
responsible for that behaviour, because 
the build itself is working - it's just the archiving. But this is the only 
change I could see.


Does have anyone an idea?


cheers
Jan