error: conformance of 'Base' to protocol 'AsyncSequence' may be isolated and cannot be passed to nonisolated context

[vsarunas]

Using latest main-snapshot-2026-04-17:

$ swift --version
Apple Swift version 6.4-dev (LLVM d65fcdad333e410, Swift 9bcb60310ca4c4b)
Target: arm64-apple-macosx26.0
Build config: +assertions

Fails to compile:

.build/checkouts/swift-async-algorithms/Sources/AsyncAlgorithms/AsyncShareSequence.swift failed with a nonzero exit code. Command line:     cd /Users/runner/actions-runner/_work/plugin-connectivity-alpaca
    builtin-SwiftPerFileCompile AsyncShareSequence.swift
/Users/runner/actions-runner/_work/plugin-connectivity-alpaca/plugin-connectivity-alpaca/.build/checkouts/swift-async-algorithms/Sources/AsyncAlgorithms/AsyncShareSequence.swift:660:24: error: conformance of 'Base' to protocol 'AsyncSequence' may be isolated and cannot be passed to nonisolated context [#�
658 |       ***.get()
659 |       #else
660 |       return try await nextIteration(id).get()
    |                        `- error: conformance of 'Base' to protocol 'AsyncSequence' may be isolated and cannot be passed to nonisolated context [#�
661 |       #endif
662 | 

[#IsolatedConformances]: <https://docs.swift.org/compiler/documentation/diagnostics/isolated-conformances>
Failed frontend command:
/Users/runner/Library/Developer/Toolchains/swift-DEVELOPMENT-SNAPSHOT-2026-04-17-a.xctoolchain/usr/bin/swift-frontend -frontend -c /Users/runner/actions-runner/_work/plugin-connectivity-