botと同じように標準入力から渡すとエラーが出ないみたい。

$ pbpaste|swift - -strict-concurrency=complete $ swift -strict-concurrency=complete (pbpaste|psub) /var/folders/kt/2mwy9b_56_7993x190pl_1fh0000gn/T/.psub.4cIohIsV1d:8:13: warning: sending 'self'-isolated value of type 'S' with later accesses to actor-isolated context risks causing data races; this is an error in the Swift 6 language mode 6 | 7 | func main(a: A) async { 8 | await a.foo() | `- warning: sending 'self'-isolated value of type 'S' with later accesses to actor-isolated context risks causing data races; this is an error in the Swift 6 language mode 9 | } $ swift -version swift-driver version: 1.112.3 Apple Swift version 6.0 (swiftlang-6.0.0.6.8 clang-1600.0.23.1) Target: arm64-apple-macosx15.0

(edited)