[pull] master from ruby:master #200
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It does raise an exception rather than just issuing a warning:
```shell
$ docker run -e ALL_RUBY_SINCE=2.7 --rm rubylang/all-ruby ./all-ruby -We 'ENV.clone'
ruby-2.7.0
...
ruby-3.0.7
ruby-3.1.0-preview1 -e:1: warning: ENV.clone is deprecated; use ENV.to_h instead
...
ruby-3.2.0-preview1 -e:1: warning: ENV.clone is deprecated; use ENV.to_h instead
ruby-3.2.0-preview2 -e:1:in `clone': Cannot clone ENV, use ENV.to_h to get a copy of ENV as a hash (TypeError)
from -e:1:in `<main>'
exit 1
...
ruby-3.3.9 -e:1:in `clone': Cannot clone ENV, use ENV.to_h to get a copy of ENV as a hash (TypeError)
from -e:1:in `<main>'
exit 1
ruby-3.4.0-preview1 -e:1:in 'clone': Cannot clone ENV, use ENV.to_h to get a copy of ENV as a hash (TypeError)
from -e:1:in '<main>'
exit 1
...
ruby-3.5.0-preview1 -e:1:in 'clone': Cannot clone ENV, use ENV.to_h to get a copy of ENV as a hash (TypeError)
from -e:1:in '<main>'
exit 1
```
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