This test requires a linux host OS. FIXME: swift-test invocations are timing out in Xcode and self-hosted CI FIXME: ld: warning: ignoring file /../XCBuild_SystemTargets.b38QoO/Inputs/libsys.a, building for macOS-arm64 but attempting to link with file built for unknown-x86_64 Undefined symbols for architecture arm64: "_GetSystemLibName", referenced from: _main in main.o ld: symbol(s) not found for architecture arm64 clang: error: linker command failed with exit code 1 (use -v to see invocation) Build cancelled FIXME: /.../XCBuild_TestProducts.551ajO/Foo/.build/apple/Intermediates.noindex/GeneratedModuleMaps/macosx/FooLib.modulemap:2:12: error: header 'FooLib-Swift.h' not found FIXME: This test randomly succeeds or fails, depending on the order the subtasks are executed in.