在Mac OS Big Sur上通过RVM安装Ruby 3.1时，使用什么正确的字符串？

我使用的是Mac OS Big Sur和rvm

$ rvm -v
rvm 1.29.12-next (master) by Michal Papis, Piotr Kuczynski, Wayne E. Seguin [https://rvm.io]

我安装了Ruby的2.7.5版本，并希望安装3.1版本。我试过

$ rvm install 3.1
Unknown ruby string (do not know how to handle): ruby-3.1.
Unknown ruby string (do not know how to handle): ruby-3.1.
Searching for binary rubies, this might take some time.
No binary rubies available for: osx/11.6/x86_64/ruby-3.1.
Continuing with compilation. Please read 'rvm help mount' to get more information on binary rubies.
Checking requirements for osx.
Certificates bundle '/usr/local/etc/openssl@1.1/cert.pem' is already up to date.
Requirements installation successful.
Unknown ruby string (do not know how to handle): ruby-3.1.
Installing Ruby from source to: /Users/davea/.rvm/rubies/ruby-3.1, this may take a while depending on your cpu(s)...
Unknown ruby string (do not know how to handle): ruby-3.1.
ruby-3.1 - #downloading ruby-3.1, this may take a while depending on your connection...
% Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
Dload  Upload   Total   Spent    Left  Speed
0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
curl: (22) The requested URL returned error: 404 
The requested url does not exist(22): 'https://cache.ruby-lang.org/pub/ruby/3.1/ruby-3.1.tar.gz'
Checking fallback: https://ftp.ruby-lang.org/pub/ruby/3.1/ruby-3.1.tar.gz
No fallback URL could be found, try increasing timeout with:
echo "export rvm_max_time_flag=20" >> ~/.rvmrc
There has been an error fetching the ruby interpreter. Halting the installation.

当我访问URL时https://cache.ruby-lang.org/pub/ruby/3.1/ruby-3.1.tar.gz，我收到消息

<Error>
<Code>NoSuchKey</Code>
<Message>The specified key does not exist.</Message>
<Key>pub/ruby/3.1/ruby-3.1.tar.gz</Key>
<RequestId>8DG8HS5XNTY4XMG4</RequestId>
<HostId>mOBmNj3QbUmQtw61eviwWGXeG9PTNUYS9S6F+BmBGtWe4zscHGk8UBqYMnwP+rcpkywMq10QxLA=</HostId>
</Error>

我在哪里可以拿到钥匙？rvm信息低于

$ rvm info
ruby-2.7.5@my-project:
system:
uname:        "Darwin localhost 20.6.0 Darwin Kernel Version 20.6.0: Mon Aug 30 06:12:21 PDT 2021; root:xnu-7195.141.6~3/RELEASE_X86_64 x86_64"
name:         "OSX"
version:      "11.6"
architecture: "x86_64"
bash:         "/bin/bash => GNU bash, version 3.2.57(1)-release (x86_64-apple-darwin20)"
zsh:          "/bin/zsh => zsh 5.8 (x86_64-apple-darwin20.0)"
remote_path:  "osx/11.6/x86_64"
xcode:        "13.2.1"
rvm:
version:      "1.29.12-next (master)"
updated:      "2 months 22 hours 58 seconds ago"
path:         "/Users/davea/.rvm"
autolibs:     "[4] Allow RVM to use package manager if found, install missing dependencies, install package manager (only OS X)."
ruby:
interpreter:  "ruby"
version:      "2.7.5p203"
date:         "2021-11-24"
platform:     "x86_64-darwin20"
patchlevel:   "2021-11-24 revision f69aeb8314"
full_version: "ruby 2.7.5p203 (2021-11-24 revision f69aeb8314) [x86_64-darwin20]"
homes:
gem:          "/Users/davea/.rvm/gems/ruby-2.7.5@my-project"
ruby:         "/Users/davea/.rvm/rubies/ruby-2.7.5"
binaries:
ruby:         "/Users/davea/.rvm/rubies/ruby-2.7.5/bin/ruby"
irb:          "/Users/davea/.rvm/rubies/ruby-2.7.5/bin/irb"
gem:          "/Users/davea/.rvm/rubies/ruby-2.7.5/bin/gem"
rake:         "/Users/davea/.rvm/gems/ruby-2.7.5@my-project/bin/rake"
environment:
PATH:         "/Users/davea/.rvm/gems/ruby-2.7.5@my-project/bin:/Users/davea/.rvm/gems/ruby-2.7.5@global/bin:/Users/davea/.rvm/rubies/ruby-2.7.5/bin:/Users/davea/.rvm/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/Library/Apple/usr/bin:/Users/davea/.cabal/bin:/Users/davea/.ghcup/bin:/Users/davea/.cabal/bin:/Users/davea/.ghcup/bin:/Users/davea/.cabal/bin:/Users/davea/.ghcup/bin"
GEM_HOME:     "/Users/davea/.rvm/gems/ruby-2.7.5@my-project"
GEM_PATH:     "/Users/davea/.rvm/gems/ruby-2.7.5@my-project:/Users/davea/.rvm/gems/ruby-2.7.5@global"
MY_RUBY_HOME: "/Users/davea/.rvm/rubies/ruby-2.7.5"
IRBRC:        "/Users/davea/.rvm/rubies/ruby-2.7.5/.irbrc"
RUBYOPT:      ""
gemset:       "my-project"