feat copy to 2 buckets, replace s3cmd by aws s3

2 jobs for hotfix/multiple_buckets in 12 minutes and 38 seconds (queued for 3 seconds)
latest
Status Job ID Name Coverage
  Build
passed #1186170
qlf-ci.inria.fr
build

00:05:12

 
  Integration Tests
passed #1186171
qlf-ci.inria.fr
integration-tests

00:07:26