wp core download gives "unable to decompress gzipped phar archive" error #4370
Description
We have a nightly script that downloads and reinstalls WordPress on a testing server. Last night, it failed like this:
$ wp core --debug download
Debug (bootstrap): No readable global config found (0.067s)
Debug (bootstrap): No project config found (0.068s)
Debug (bootstrap): argv: /usr/bin/wp core --debug download (0.068s)
Debug (bootstrap): ABSPATH defined: /var/www/html/ (0.068s)
Debug (bootstrap): Running command: core download (0.069s)
Downloading WordPress 4.8.2 (en_US)...
md5 hash verified: 2e8744a702a3d9527782d9135a4c9544
Error: Couldn't extract WordPress archive. unable to decompress gzipped phar archive "/tmp/wp_59c231a7990f7.tar.gz" to temporary file
I've checked that I have not run out of free disk space. I have also checked that the temporary file is a valid gzipped tarball:
$ cat /tmp/wp_59c231a7990f7.tar.gz | file -
/dev/stdin: gzip compressed data, last modified: Tue Sep 19 21:21:21 2017, from Unix
$ zcat /tmp/wp_59c231a7990f7.tar.gz | file -
/dev/stdin: POSIX tar archive (GNU)
$ tar tf /tmp/wp_59c231a7990f7.tar.gz | head
wordpress/
wordpress/wp-settings.php
wordpress/wp-cron.php
wordpress/wp-comments-post.php
wordpress/wp-activate.php
wordpress/wp-admin/
wordpress/wp-admin/link-parse-opml.php
wordpress/wp-admin/js/
wordpress/wp-admin/js/editor.js
wordpress/wp-admin/js/user-profile.min.js
Here is some more debugging information:
$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 16.04.3 LTS
Release: 16.04
Codename: xenial
$ php -v
PHP 7.0.22-0ubuntu0.16.04.1 (cli) ( NTS )
Copyright (c) 1997-2017 The PHP Group
Zend Engine v3.0.0, Copyright (c) 1998-2017 Zend Technologies
with Zend OPcache v7.0.22-0ubuntu0.16.04.1, Copyright (c) 1999-2017, by Zend Technologies
$ wp --version
WP-CLI 1.3.0