I am getting a strange error when calling `asCompl...

# coroutines

[Jakob K]

I am getting a strange error when calling asCompletableFuture() on a Deferred<T> instance:

Exception in thread "DefaultDispatcher-worker-2" [20:05:24] [DefaultDispatcher-worker-2/INFO] (Minecraft) [STDERR]: kotlinx.coroutines.CoroutinesInternalError: Fatal exception in coroutines machinery for CancellableContinuation(DispatchedContinuation[<http://Dispatchers.IO|Dispatchers.IO>, Continuation at net.axay.fabrik.commands.BrigardierWrapperKt$simpleSuggests$1$1.invokeSuspend(BrigardierWrapper.kt:78)@6fab03fa]){Cancelled}@7a8f83b6. Please read KDoc to 'handleFatalException' method and report this incident to maintainers
[20:05:24] [DefaultDispatcher-worker-2/INFO] (Minecraft) [STDERR]: 	at kotlinx.coroutines.DispatchedTask.handleFatalException(DispatchedTask.kt:144)
[20:05:24] [DefaultDispatcher-worker-2/INFO] (Minecraft) [STDERR]: 	at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:115)
[20:05:24] [DefaultDispatcher-worker-2/INFO] (Minecraft) [STDERR]: 	at kotlinx.coroutines.scheduling.CoroutineScheduler.runSafely(CoroutineScheduler.kt:571)
[20:05:24] [DefaultDispatcher-worker-2/INFO] (Minecraft) [STDERR]: 	at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.executeTask(CoroutineScheduler.kt:750)
[20:05:24] [DefaultDispatcher-worker-2/INFO] (Minecraft) [STDERR]: 	at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.runWorker(CoroutineScheduler.kt:678)
[20:05:24] [DefaultDispatcher-worker-2/INFO] (Minecraft) [STDERR]: 	at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.run(CoroutineScheduler.kt:665)
[20:05:24] [DefaultDispatcher-worker-2/INFO] (Minecraft) [STDERR]: Caused by: java.lang.ClassCastException: class kotlin.coroutines.jvm.internal.CompletedContinuation cannot be cast to class kotlinx.coroutines.internal.DispatchedContinuation (kotlin.coroutines.jvm.internal.CompletedContinuation and kotlinx.coroutines.internal.DispatchedContinuation are in unnamed module of loader 'app')
[20:05:24] [DefaultDispatcher-worker-2/INFO] (Minecraft) [STDERR]: 	at kotlinx.coroutines.CoroutineDispatcher.releaseInterceptedContinuation(CoroutineDispatcher.kt:104)
[20:05:24] [DefaultDispatcher-worker-2/INFO] (Minecraft) [STDERR]: 	at kotlin.coroutines.jvm.internal.ContinuationImpl.releaseIntercepted(ContinuationImpl.kt:118)
[20:05:24] [DefaultDispatcher-worker-2/INFO] (Minecraft) [STDERR]: 	at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:39)
[20:05:24] [DefaultDispatcher-worker-2/INFO] (Minecraft) [STDERR]: 	at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:104)
[20:05:24] [DefaultDispatcher-worker-2/INFO] (Minecraft) [STDERR]: 	... 4 more

The image shows the code where the error appears. Could this have something to do with inline, crossinline or the lambda (or the combination of them all)? Is this an internal bug?

The cast that fails can be seen in the second image I attached.

Does anyone have an idea why this error even appears?