[Libvirt-ci] Build failed in Jenkins: libvirt-build » libvirt-fedora-27 #40

See <https://ci.centos.org/job/libvirt-build/systems=libvirt-fedora-27/40/display/redirect?page=changes>

Changes:

[eskultet] internal: Move <stdio.h> include to internal.h

[eskultet] src: More cleanup of some system headers already contained in internal.h

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Started by upstream project "libvirt-build" build number 40
originally caused by:
 Started by an SCM change
[EnvInject] - Loading node environment variables.
Building remotely on libvirt-fedora-27 (libvirt) in workspace <https://ci.centos.org/job/libvirt-build/systems=libvirt-fedora-27/ws/>
 > git rev-parse --is-inside-work-tree # timeout=10
Fetching changes from the remote Git repository
 > git config remote.origin.url https://github.com/libvirt/libvirt.git # timeout=10
Fetching upstream changes from https://github.com/libvirt/libvirt.git
 > git --version # timeout=10
 > git fetch --tags --progress https://github.com/libvirt/libvirt.git +refs/heads/*:refs/remotes/origin/*
Checking out Revision 5165ff097140227a643c2d14dd9289da1b839b5a (refs/remotes/origin/master)
 > git config core.sparsecheckout # timeout=10
 > git checkout -f 5165ff097140227a643c2d14dd9289da1b839b5a
Commit message: "src: More cleanup of some system headers already contained in internal.h"
 > git rev-list --no-walk 212df3f9573f7284d361f855bb6e476e5a0259e6 # timeout=10
Cleaning workspace
 > git rev-parse --verify HEAD # timeout=10
Resetting working tree
 > git reset --hard # timeout=10
 > git clean -fdx # timeout=10
[libvirt] $ /bin/sh -xe /tmp/jenkins6938043318714158109.sh
+ mkdir build
mkdir: cannot create directory ‘build’: File exists
Build step 'Execute shell' marked build as failure