如果我跑'＃34;作曲家诊断＆＃34;在检查github.com速率限制时，它会给我一个失败的消息：
Checking platform settings: OK
Checking git settings: OK
Checking http connectivity to packagist: OK
Checking https connectivity to packagist: OK
Checking github.com rate limit: FAIL
[Composer\Downloader\TransportException] The "https://api.github.com/rate_limit" file could not be downloaded: SSL: Connection reset by peer
Failed to enable crypto
failed to open stream: operation failed
Checking disk free space: OK
Checking pubkeys:
Tags Public Key Fingerprint: 57815BA2 7E54DC31 7ECC7CC5 573090D0 87719BA6 8F3BB723 4E5D42D0 84A14642
Dev Public Key Fingerprint: 4AC45767 E5EC2265 2F0C1167 CBBB8A2B 0C708369 153E328C AD90147D AFE50952
OK
Checking composer version: OK
我不在代理或防火墙后面，我可以从HTTP或HTTPS下载所有内容。我试图改变我的cacert.pem等等。但没有什么能解决它。
当我尝试安装软件包时，也会发生错误：
sudo composer require cocur/slugify
Using version ^2.0 for cocur/slugify
./composer.json has been updated
Loading composer repositories with package information
Updating dependencies (including require-dev)
- Installing cocur/slugify (v2.0)
Downloading: 100%
Downloading: 100%
Downloading: 100%
Failed to download cocur/slugify from dist: The "https://api.github.com/repos/cocur/slugify/zipball/912bf41f940f9a4e38ff1284b1841eaa71911d7f" file could not be downloaded: SSL: Connection reset by peer
Failed to enable crypto
failed to open stream: operation failed
Now trying to download from source
- Installing cocur/slugify (v2.0)
Cloning 912bf41f940f9a4e38ff1284b1841eaa71911d7f
The authenticity of host 'github.com (192.30.252.130)' can't be established.
RSA key fingerprint is 16:27:ac:a5:76:28:2d:36:63:1b:56:4d:eb:df:a6:48.
Are you sure you want to continue connecting (yes/no)? yes
Installation failed, reverting ./composer.json to its original content.
[RuntimeException]
Failed to clone https://github.com/cocur/slugify.git via https, ssh protocols, aborting.
- https://github.com/cocur/slugify.git
Cloning into '/home/user/temp/vendor/cocur/slugify'...
fatal: unable to access 'https://github.com/cocur/slugify.git/': gnutls_handshake() failed: A TLS packet with unexpected length was received.
- git@github.com:cocur/slugify.git
Cloning into '/home/user/temp/vendor/cocur/slugify'...
Warning: Permanently added 'github.com,192.30.252.130' (RSA) to the list of known hosts.
Permission denied (publickey).
fatal: Could not read from remote repository.
Please make sure you have the correct access rights
and the repository exists.
require [--dev] [--prefer-source] [--prefer-dist] [--no-plugins] [--no-progress] [--no-update] [--update-no-dev] [--update-with-dependencies] [--ignore-platform-reqs] [--sort-packages] [-o|--optimize-autoloader] [-a|--classmap-authoritative] [--] [<packages>]...