Pulling docker image fedora:25 ...
Using docker image fedora:25 ID=sha256:9cffd21a45e3541e3677bec005b1eabddf4970080df8a48dbf1b37af66988733 for build container...
Running on runner-2f142861-project-24960-concurrent-0 via st-gitlab-fc25-01.cern.ch...
Cloning repository...
Cloning into '/builds/dss/xrootd'...
Checking out 599d95ea as master...
Skipping Git submodules setup
$ dnf install --nogpg -y gcc-c++ rpm-build which tar dnf-plugins-core git
ERROR: Job failed: exit code 1

 Problem: python3-3.7.0-3.fc29.i686 has inferior architecture
  - package python3-dnf-plugins-core-3.0.1-2.fc29.noarch requires python(abi) = 3.7, but none of the providers can be installed
  - cannot install both python3-3.7.0-3.fc29.x86_64 and python3-3.6.4-16.fc29.x86_64
  - package dnf-plugins-core-3.0.1-2.fc29.noarch requires python3-dnf-plugins-core = 3.0.1-2.fc29, but none of the providers can be installed
  - package python3-modulemd-1.3.3-1.fc28.noarch requires python(abi) = 3.6, but none of the providers can be installed
  - conflicting requests
  - problem with installed package python3-modulemd-1.3.3-1.fc28.noarch
(try to add '--allowerasing' to command line to replace conflicting packages or '--skip-broken' to skip uninstallable packages)
ERROR: Job failed: exit code 1