I cloned down the new swift-collections repository and went to open it up, explore a bit. First thing I tried was opening it in Xcode 12.4 (Intel Mac), and when I did a fresh build, I got a compiler failure/crash.
I thought maybe there was a different with swift directly on the command line, so I tried there - but hit basically the same thing.
Is this something I should open a bug for, or am I holding it wrong?
The failure is in swift-collections-CLI-build-failure.txt · GitHub - I didn't to spam it into here, but the key error message seems to be:
<unknown>:0: error: fatal error encountered while reading from module 'OrderedCollections'; please file a bug report with your project and the crash log <unknown>:0: note: module 'OrderedCollections' full misc version is '5.3.2(5.3.2)/Apple Swift version 5.3.2 (swiftlang-1200.0.45 clang-1184.108.40.206)'
To be on the safe side, I opened a bug for this: https://bugs.swift.org/browse/SR-14448. Happy to close it mea culpa if I'm missing something and just "holding it wrong"