[Libvirt-ci] Build failed in Jenkins: libvirt-build » libvirt-fedora-27 #30

See <https://ci.centos.org/job/libvirt-build/systems=libvirt-fedora-27/30/display/redirect?page=changes>

Changes:

[mprivozn] qemu_security: Fully implement qemuSecurityDomainSetPathLabel

[mprivozn] qemu_security: Fully implement qemuSecurity{Set,Restore}SavedStateLabel

[mprivozn] qemu_security: Require full wrappers for APIs that might touch a file

[mprivozn] virSecurityManagerTransactionCommit: Accept pid == -1

[mprivozn] qemu_security: Run transactions more frequently

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Started by upstream project "libvirt-build" build number 30
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 37131adada5b2829e31ead6dd40de4d5cfffd639 (refs/remotes/origin/master)
 > git config core.sparsecheckout # timeout=10
 > git checkout -f 37131adada5b2829e31ead6dd40de4d5cfffd639
Commit message: "qemu_security: Run transactions more frequently"
 > git rev-list --no-walk 679895eb5d456a9902cbe9be748698ec38cc6945 # 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/jenkins6063343398963854454.sh
+ mkdir build
mkdir: cannot create directory ‘build’: File exists
Build step 'Execute shell' marked build as failure