Flag cross_process_two_step_transfer_spawn as ignored on OSX as well, due to Mach error

Author: vvuk

src/platform/test.rs

@@ -1045,8 +1045,13 @@ fn cross_process_two_step_transfer_server()
 // This test panics on Windows, because the other process will panic
 // when it detects that it receives handles that are intended for another
 // process.  It's marked as ignore/known-fail on Windows for this reason.
+//
+// TODO -- this fails on OSX as well with a MACH_SEND_INVALID_RIGHT!
+// Needs investigation.  It may be a similar underlying issue, just done by
+// the kernel instead of explicitly (ports in a message that's already
+// buffered are intended for only one process).
 #[cfg(not(any(feature = "force-inprocess", target_os = "android")))]
-#[cfg_attr(target_os = "windows", ignore)]
+#[cfg_attr(any(target_os = "windows", target_os = "macos"), ignore)]
 #[test]
 fn cross_process_two_step_transfer_spawn() {
     let cookie: &[u8] = b"cookie";