lukeh@liebling:~/CVSRoot/padl/AsyncExtensions-1$ swift --version
Swift version 5.9-dev (LLVM edfa23b742ff932, Swift 18d8d9b752723b6)
Target: aarch64-unknown-linux-gnu

Test Case 'AsyncCurrentValueSubjectTests.test_subject_handles_concurrency' started at 2023-07-19 05:19:15.360
Process 90935 stopped
* thread #2, name = 'AsyncExtensions', stop reason = signal SIGTRAP
    frame #0: 0x0000fffff6dfa0f0 libXCTest.so`XCTest.XCTestCase.waitForExpectations(timeout: Swift.Double, file: Swift.StaticString, line: Swift.Int, handler: Swift.Optional<(Swift.Optional<Swift.Error>) -> ()>) -> () + 820
libXCTest.so`XCTest.XCTestCase.waitForExpectations(timeout: Swift.Double, file: Swift.StaticString, line: Swift.Int, handler: Swift.Optional<(Swift.Optional<Swift.Error>) -> ()>) -> ():
->  0xfffff6dfa0f0 <+820>: brk    #0x1

libXCTest.so`lazy protocol witness table accessor for type XCTest.XCTWaiter.Result and conformance XCTest.XCTWaiter.Result : Swift.RawRepresentable in XCTest:
    0xfffff6dfa0f4 <+0>:   stp    x29, x30, [sp, #-0x10]!
    0xfffff6dfa0f8 <+4>:   adrp   x8, 45
    0xfffff6dfa0fc <+8>:   mov    x29, sp
Target 0: (AsyncExtensionsPackageTests.xctest) stopped.
(lldb) bt
* thread #2, name = 'AsyncExtensions', stop reason = signal SIGTRAP
  * frame #0: 0x0000fffff6dfa0f0 libXCTest.so`XCTest.XCTestCase.waitForExpectations(timeout: Swift.Double, file: Swift.StaticString, line: Swift.Int, handler: Swift.Optional<(Swift.Optional<Swift.Error>) -> ()>) -> () + 820
    frame #1: 0x0000aaaaaac005d8 AsyncExtensionsPackageTests.xctest`AsyncCurrentValueSubjectTests.test_subject_handles_concurrency(self=0x0000aaaaab2b7820) at AsyncCurrentValueSubjectTests.swift:178:11
    frame #2: 0x0000fffff78f5578 libswift_Concurrency.so`swift::runJobInEstablishedExecutorContext(swift::Job*) + 408
    frame #3: 0x0000fffff78f5e98 libswift_Concurrency.so`swift_job_run + 96
    frame #4: 0x0000fffff772a818 libdispatch.so`_dispatch_continuation_pop + 236
    frame #5: 0x0000fffff772a614 libdispatch.so`_dispatch_async_redirect_invoke + 216
    frame #6: 0x0000fffff7735948 libdispatch.so`_dispatch_worker_thread + 440
    frame #7: 0x0000fffff696d5c8 libc.so.6`start_thread(arg=0x0000000000000000) at pthread_create.c:442:8
    frame #8: 0x0000fffff69d5d1c libc.so.6`thread_start at clone.S:79
(lldb) up

Test Suite 'AsyncWithLatestFrom2SequenceTests' started at 2023-07-31 02:19:32.686
Test Case 'AsyncWithLatestFrom2SequenceTests.test_withLatestFrom_finishes_loop_when_task_is_cancelled' started at 2023-07-31 02:19:32.686
/home/lukeh/CVSRoot/padl/AsyncExtensions-1/Tests/Combiners/WithLatestFrom/AsyncWithLatestFrom2SequenceTests.swift:212: error: AsyncWithLatestFrom2SequenceTests.test_withLatestFrom_finishes_loop_when_task_is_cancelled : Asynchronous wait failed - Exceeded timeout of 5.0 seconds, with unfulfilled expectations: The iteration has produced 1 element

    let task = Task(priority: .high) {
      var iterator = sequence.makeAsyncIterator()

      var firstIteration = false
      var firstElement: (Int, String, String)?
      while let element = await iterator.next() {
        if !firstIteration {
          firstElement = element
          firstIteration = true
          iterated.fulfill()
        }
      }
      XCTAssertEqual(Tuple3(firstElement!), Tuple3((1, "a", "x")))

      finished.fulfill()
    }