Provisioning fails due to clang installation failure

agent:2019/06/27 09:11:51 build.go:412: Running provisioning bash script: "/tmp/provisioning-315912136/coin/provisioning/qtci-linux-Ubuntu-18.04-x86_64/04-libclang.sh"
++ dirname /tmp/provisioning-315912136/coin/provisioning/qtci-linux-Ubuntu-18.04-x86_64/04-libclang.sh
+ BASEDIR=/tmp/provisioning-315912136/coin/provisioning/qtci-linux-Ubuntu-18.04-x86_64
+ /tmp/provisioning-315912136/coin/provisioning/qtci-linux-Ubuntu-18.04-x86_64/../common/unix/libclang.sh
++ source /tmp/provisioning-315912136/coin/provisioning/qtci-linux-Ubuntu-18.04-x86_64/../common/unix/../shared/http_proxy.txt
+++ proxy=http://proxy.intra.qt.io:3128
++ wget -q -e http_proxy=http://proxy.intra.qt.io:3128 --spider proxy.intra.qt.io
++ echo 'Setting http_proxy to http://proxy.intra.qt.io:3128'
Setting http_proxy to http://proxy.intra.qt.io:3128
++ export http_proxy=http://proxy.intra.qt.io:3128
++ http_proxy=http://proxy.intra.qt.io:3128
+ source /tmp/provisioning-315912136/coin/provisioning/qtci-linux-Ubuntu-18.04-x86_64/../common/unix/SetEnvVar.sh
++ set -ex
+ source /tmp/provisioning-315912136/coin/provisioning/qtci-linux-Ubuntu-18.04-x86_64/../common/unix/DownloadURL.sh
++ set -ex
+ libclang_version=6.0
+ uname -a
+ grep -q Darwin
+ version=6.0
+ url=https://download.qt.io/development_releases/prebuilt/libclang/qt/libclang-release_60-linux-Rhel7.2-gcc5.3-x86_64.7z
+ url_cached=http://ci-files01-hki.intra.qt.io/input/libclang/qt/libclang-release_60-linux-Rhel7.2-gcc5.3-x86_64.7z
+ sha1=ef59b699f4fcce2e45108b3ff04cc7471c1c4abe
+ zip=/tmp/libclang.7z
+ destination=/usr/local/libclang-6.0
+ DownloadURL http://ci-files01-hki.intra.qt.io/input/libclang/qt/libclang-release_60-linux-Rhel7.2-gcc5.3-x86_64.7z https://download.qt.io/development_releases/prebuilt/libclang/qt/libclang-release_60-linux-Rhel7.2-gcc5.3-x86_64.7z ef59b699f4fcce2e45108b3ff04cc7471c1c4abe /tmp/libclang.7z
+ url=http://ci-files01-hki.intra.qt.io/input/libclang/qt/libclang-release_60-linux-Rhel7.2-gcc5.3-x86_64.7z
+ url_alt=https://download.qt.io/development_releases/prebuilt/libclang/qt/libclang-release_60-linux-Rhel7.2-gcc5.3-x86_64.7z
+ expectedSha1=ef59b699f4fcce2e45108b3ff04cc7471c1c4abe
+ targetFile=/tmp/libclang.7z
+ echo 'Downloading from primary URL '\''http://ci-files01-hki.intra.qt.io/input/libclang/qt/libclang-release_60-linux-Rhel7.2-gcc5.3-x86_64.7z'\'''
Downloading from primary URL 'http://ci-files01-hki.intra.qt.io/input/libclang/qt/libclang-release_60-linux-Rhel7.2-gcc5.3-x86_64.7z'
+ curl --fail -L --retry 5 --retry-delay 5 -o /tmp/libclang.7z http://ci-files01-hki.intra.qt.io/input/libclang/qt/libclang-release_60-linux-Rhel7.2-gcc5.3-x86_64.7z
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
  0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
 53  293M   53  157M    0     0   260M      0  0:00:01 --:--:--  0:00:01  260M
100  293M  100  293M    0     0   259M      0  0:00:01  0:00:01 --:--:--  259M
+ echo 'Checking SHA1 on PKG '\''/tmp/libclang.7z'\'''
Checking SHA1 on PKG '/tmp/libclang.7z'
+ echo 'ef59b699f4fcce2e45108b3ff04cc7471c1c4abe */tmp/libclang.7z'
+ sha1sum --check /tmp/libclang.7z.sha1
/tmp/libclang.7z: OK
+ rm -f /tmp/libclang.7z.sha1
+ 7z x /tmp/libclang.7z -o/tmp/
7-Zip [64] 16.02 : Copyright (c) 1999-2016 Igor Pavlov : 2016-05-21
p7zip Version 16.02 (locale=en_US.UTF-8,Utf16=on,HugeFiles=on,64 bits,8 CPUs QEMU Virtual CPU version 2.5+ (663),ASM)
Scanning the drive for archives:
1 file, 308060257 bytes (294 MiB)
Extracting archive: /tmp/libclang.7z
--
Path = /tmp/libclang.7z
Type = 7z
Physical Size = 308060257
Headers Size = 29455
Method = LZMA:24 BCJ
Solid = +
Blocks = 2
agent:2019/06/27 09:13:38 build.go:531: Executing scheduled instruction 1 of 1 - Upload all core dumps if there are some
agent:2019/06/27 09:13:38 build.go:533: 
agent:2019/06/27 09:13:38 agent.go:275: Provision failed
agent:2019/06/27 09:13:38 agent.go:198: ERROR building: Provisioning failed: Error running bash script "/tmp/provisioning-315912136/coin/provisioning/qtci-linux-Ubuntu-18.04-x86_64/04-libclang.sh": Error running bash -ex /tmp/provisioning-315912136/coin/provisioning/qtci-linux-Ubuntu-18.04-x86_64/04-libclang.sh: exit status 141
2019-06-27 09:13:38,787 INFO:workitem.py:544(17425): Agent FINISHED FAIL: <could not determine failure location - check log!>: provisioning/qtci-linux-Ubuntu-18.04-x86_64-374afe/Provision