用composer安装laravel不成功

/usr/local/bin/composer global require laravel/installer -vvv

Changed current directory to /root/.config/composer

Reading ./composer.json

Loading config file /root/.config/composer/config.json

Loading config file /root/.config/composer/auth.json

Loading config file ./composer.json

Loading config file /root/.config/composer/auth.json

Reading /root/.config/composer/auth.json

Checked CA file /etc/pki/ca-trust/extracted/pem/tls-ca-bundle.pem: valid

Executing command (/root/.config/composer): git branch --no-color --no-abbrev -v

Executing command (/root/.config/composer): git describe --exact-match --tags

Executing command (/root/.config/composer): git log --pretty="%H" -n1 HEAD

Executing command (/root/.config/composer): hg branch

Executing command (/root/.config/composer): fossil branch list

Executing command (/root/.config/composer): fossil tag list

Executing command (/root/.config/composer): svn info --xml

Running 1.10.1 (2020-03-13 20:34:27) with PHP 7.2.29 on Linux / 3.10.0-1062.18.1.el7.x86_64

Downloading https://packagist.phpcomposer.com/packages.json

Writing /root/.cache/composer/repo/https---packagist.phpcomposer.com/packages.json into cache

Reading /root/.cache/composer/repo/https---packagist.phpcomposer.com/provider-laravel$installer.json from cache

Downloading https://repo.packagist.org/p/laravel/installer.json

Using version ^3.0 for laravel/installer

./composer.json has been updated

Reading ./composer.json

Loading config file /root/.config/composer/config.json

Loading config file /root/.config/composer/auth.json

Loading config file ./composer.json

Loading config file /root/.config/composer/auth.json

Reading /root/.config/composer/auth.json

Executing command (/root/.config/composer): git branch --no-color --no-abbrev -v

Executing command (/root/.config/composer): git describe --exact-match --tags

Executing command (/root/.config/composer): git log --pretty="%H" -n1 HEAD

Executing command (/root/.config/composer): hg branch

Executing command (/root/.config/composer): fossil branch list

Executing command (/root/.config/composer): fossil tag list

Executing command (/root/.config/composer): svn info --xml

Loading composer repositories with package information

Downloading https://packagist.phpcomposer.com/packages.json

Writing /root/.cache/composer/repo/https---packagist.phpcomposer.com/packages.json into cache

Updating dependencies (including require-dev)

Reading /root/.cache/composer/repo/https---packagist.phpcomposer.com/provider-laravel$laravel.json from cache

Downloading https://repo.packagist.org/p/laravel/laravel.json

Reading /root/.cache/composer/repo/https---packagist.phpcomposer.com/provider-laravel$framework.json from cache

Downloading https://repo.packagist.org/p/laravel/framework.json

Reading /root/.cache/composer/repo/https---packagist.phpcomposer.com/provider-classpreloader$classpreloader.json from cache

Downloading https://repo.packagist.org/p/classpreloader/classpreloader.json

Reading /root/.cache/composer/repo/https---packagist.phpcomposer.com/provider-doctrine$inflector.json from cache

Downloading https://repo.packagist.org/p/doctrine/inflector.json

Reading /root/.cache/composer/repo/https---packagist.phpcomposer.com/provider-jeremeamia$superclosure.json from cache

Downloading https://repo.packagist.org/p/jeremeamia/superclosure.json

Reading /root/.cache/composer/repo/https---packagist.phpcomposer.com/provider-league$flysystem.json from cache

Downloading https://repo.packagist.org/p/league/flysystem.json

Reading /root/.cache/composer/repo/https---packagist.phpcomposer.com/provider-monolog$monolog.json from cache

Downloading https://repo.packagist.org/p/monolog/monolog.json

Reading /root/.cache/composer/repo/https---packagist.phpcomposer.com/provider-mtdowling$cron-expression.json from cache

Downloading https://repo.packagist.org/p/mtdowling/cron-expression.json

Reading /root/.cache/composer/repo/https---packagist.phpcomposer.com/provider-nesbot$carbon.json from cache

Downloading https://repo.packagist.org/p/nesbot/carbon.json

Reading /root/.cache/composer/repo/https---packagist.phpcomposer.com/provider-paragonie$random-compat.json from cache

Downloading https://repo.packagist.org/p/paragonie/random_compat.json

Writing /root/.cache/composer/repo/https---packagist.phpcomposer.com/provider-paragonie$random-compat.json into cache

Reading /root/.cache/composer/repo/https---packagist.phpcomposer.com/provider-psy$psysh.json from cache

Downloading https://repo.packagist.org/p/psy/psysh.json

Reading /root/.cache/composer/repo/https---packagist.phpcomposer.com/provider-swiftmailer$swiftmailer.json from cache

Downloading https://repo.packagist.org/p/swiftmailer/swiftmailer.json

Reading /root/.cache/composer/repo/https---packagist.phpcomposer.com/provider-symfony$console.json from cache

Downloading https://repo.packagist.org/p/symfony/console.json

Reading /root/.cache/composer/repo/https---packagist.phpcomposer.com/provider-symfony$debug.json from cache

Downloading https://repo.packagist.org/p/symfony/debug.json

Reading /root/.cache/composer/repo/https---packagist.phpcomposer.com/provider-symfony$finder.json from cache

Downloading https://repo.packagist.org/p/symfony/finder.json

Reading /root/.cache/composer/repo/https---packagist.phpcomposer.com/provider-symfony$http-foundation.json from cache

Downloading https://repo.packagist.org/p/symfony/http-foundation.json

Reading /root/.cache/composer/repo/https---packagist.phpcomposer.com/provider-symfony$http-kernel.json from cache

Downloading https://repo.packagist.org/p/symfony/http-kernel.json

Reading /root/.cache/composer/repo/https---packagist.phpcomposer.com/provider-symfony$polyfill-php56.json from cache

Downloading https://repo.packagist.org/p/symfony/polyfill-php56.json

Writing /root/.cache/composer/repo/https---packagist.phpcomposer.com/provider-symfony$polyfill-php56.json into cache

Reading /root/.cache/composer/repo/https---packagist.phpcomposer.com/provider-symfony$process.json from cache

Downloading https://repo.packagist.org/p/symfony/process.json

Reading /root/.cache/composer/repo/https---packagist.phpcomposer.com/provider-symfony$routing.json from cache

Downloading https://repo.packagist.org/p/symfony/routing.json

Reading /root/.cache/composer/repo/https---packagist.phpcomposer.com/provider-symfony$translation.json from cache

Downloading https://repo.packagist.org/p/symfony/translation.json

Reading /root/.cache/composer/repo/https---packagist.phpcomposer.com/provider-symfony$var-dumper.json from cache

Downloading https://repo.packagist.org/p/symfony/var-dumper.json

Reading /root/.cache/composer/repo/https---packagist.phpcomposer.com/provider-vlucas$phpdotenv.json from cache

Downloading https://repo.packagist.org/p/vlucas/phpdotenv.json

Reading /root/.cache/composer/repo/https---packagist.phpcomposer.com/provider-nikic$php-parser.json from cache

Downloading https://repo.packagist.org/p/nikic/php-parser.json

Reading /root/.cache/composer/repo/https---packagist.phpcomposer.com/provider-psr$log.json from cache

Downloading https://repo.packagist.org/p/psr/log.json

Reading /root/.cache/composer/repo/https---packagist.phpcomposer.com/provider-kylekatarnls$update-helper.json from cache

Downloading https://repo.packagist.org/p/kylekatarnls/update-helper.json

Reading /root/.cache/composer/repo/https---packagist.phpcomposer.com/provider-dnoegel$php-xdg-base-dir.json from cache

Downloading https://repo.packagist.org/p/dnoegel/php-xdg-base-dir.json

Reading /root/.cache/composer/repo/https---packagist.phpcomposer.com/provider-jakub-onderka$php-console-highlighter.json from cache

Downloading https://repo.packagist.org/p/jakub-onderka/php-console-highlighter.json

Reading /root/.cache/composer/repo/https---packagist.phpcomposer.com/provider-symfony$polyfill-mbstring.json from cache

Downloading https://repo.packagist.org/p/symfony/polyfill-mbstring.json

Reading /root/.cache/composer/repo/https---packagist.phpcomposer.com/provider-symfony$polyfill-php54.json from cache

Downloading https://repo.packagist.org/p/symfony/polyfill-php54.json

Reading /root/.cache/composer/repo/https---packagist.phpcomposer.com/provider-symfony$polyfill-php55.json from cache

Downloading https://repo.packagist.org/p/symfony/polyfill-php55.json

Reading /root/.cache/composer/repo/https---packagist.phpcomposer.com/provider-symfony$event-dispatcher.json from cache

Downloading https://repo.packagist.org/p/symfony/event-dispatcher.json

Reading /root/.cache/composer/repo/https---packagist.phpcomposer.com/provider-symfony$polyfill-ctype.json from cache

Downloading https://repo.packagist.org/p/symfony/polyfill-ctype.json

Writing /root/.cache/composer/repo/https---packagist.phpcomposer.com/provider-symfony$polyfill-ctype.json into cache

Reading /root/.cache/composer/repo/https---packagist.phpcomposer.com/provider-symfony$polyfill-util.json from cache

Downloading https://repo.packagist.org/p/symfony/polyfill-util.json

Reading /root/.cache/composer/repo/https---packagist.phpcomposer.com/provider-symfony$contracts.json from cache

Downloading https://repo.packagist.org/p/symfony/contracts.json

Reading /root/.cache/composer/repo/https---packagist.phpcomposer.com/provider-symfony$translation-contracts.json from cache

Downloading https://repo.packagist.org/p/symfony/translation-contracts.json

Reading /root/.cache/composer/repo/https---packagist.phpcomposer.com/provider-jakub-onderka$php-console-color.json from cache

Downloading https://repo.packagist.org/p/jakub-onderka/php-console-color.json

Reading /root/.cache/composer/repo/https---packagist.phpcomposer.com/provider-ircmaxell$password-compat.json from cache

Downloading https://repo.packagist.org/p/ircmaxell/password-compat.json

Reading /root/.cache/composer/repo/https---packagist.phpcomposer.com/provider-symfony$polyfill-php70.json from cache

Downloading https://repo.packagist.org/p/symfony/polyfill-php70.json

Writing /root/.cache/composer/repo/https---packagist.phpcomposer.com/provider-symfony$polyfill-php70.json into cache

Reading /root/.cache/composer/repo/https---packagist.phpcomposer.com/provider-psr$cache.json from cache

Downloading https://repo.packagist.org/p/psr/cache.json

Reading /root/.cache/composer/repo/https---packagist.phpcomposer.com/provider-psr$container.json from cache

Downloading https://repo.packagist.org/p/psr/container.json

Reading /root/.cache/composer/repo/https---packagist.phpcomposer.com/provider-laravel$installer.json from cache

Downloading https://repo.packagist.org/p/laravel/installer.json

Reading /root/.cache/composer/repo/https---packagist.phpcomposer.com/provider-guzzlehttp$guzzle.json from cache

Downloading https://repo.packagist.org/p/guzzlehttp/guzzle.json

Reading /root/.cache/composer/repo/https---packagist.phpcomposer.com/provider-symfony$filesystem.json from cache

Downloading https://repo.packagist.org/p/symfony/filesystem.json

Reading /root/.cache/composer/repo/https---packagist.phpcomposer.com/provider-guzzlehttp$psr7.json from cache

Downloading https://repo.packagist.org/p/guzzlehttp/psr7.json

Reading /root/.cache/composer/repo/https---packagist.phpcomposer.com/provider-guzzlehttp$promises.json from cache

Downloading https://repo.packagist.org/p/guzzlehttp/promises.json

Reading /root/.cache/composer/repo/https---packagist.phpcomposer.com/provider-symfony$polyfill-php73.json from cache

Downloading https://repo.packagist.org/p/symfony/polyfill-php73.json

Reading /root/.cache/composer/repo/https---packagist.phpcomposer.com/provider-symfony$service-contracts.json from cache

Downloading https://repo.packagist.org/p/symfony/service-contracts.json

Reading /root/.cache/composer/repo/https---packagist.phpcomposer.com/provider-psr$http-message.json from cache

Downloading https://repo.packagist.org/p/psr/http-message.json

Reading /root/.cache/composer/repo/https---packagist.phpcomposer.com/provider-ralouphie$getallheaders.json from cache

Downloading https://repo.packagist.org/p/ralouphie/getallheaders.json

Resolving dependencies through SAT

Looking at all rules.

Something's changed, looking at all rules again (pass #3495)