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Guys...

Swift 5.9.2 is dead on all platforms... What's happened?

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The main branch isn't Swift 5.9.2. Breaking CI happens from time to time and you can be assured it will be fixed in short order; this will only really affect you if you're trying to merge code into the Swift compiler codebase right this second.

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Thanks for clarifying.

It's first time I've seen it fail on ALL platforms. Hence the concern.

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i picked a bad time to (re)learn how to compile the compiler… :sweat_smile:

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I just built the compiler for 3 different builds today using the 20th November snapshot.

This is how to do it:

git clone github.com/apple/swift
cd swift
git checkout swift-DEVELOPMENT-SNAPSHOT-2023-11-20-a
utils/update-checkout --clone-with-ssh --scheme main --match-timestamp
utils/build-script ...

The clone-with-ssh flag is my preferred way of cloning
Development Snapshots are built from the main branch. If you look on swift.org/downloads under the Trunk main section, those are built from the main branch. Of which, I used the 20th November one.
--match-timestamp does is git checkout the required libraries at that particular time which helped build the whole compiler.

Have fun with the compiler!