---
struct Oops {
    int convert() {
        *cast(int*)0xcafebabe = 0xdeadbeef;
        return 0;
    }
    alias convert this;
}

void main() @safe {
    import std.parallelism;
    
    static void foo(int) @safe {}

    auto t = task(&foo, Oops.init);
    // or: auto t = scopedTask(&foo, Oops.init);

    taskPool.put(t);
}
---

Tested with current Git master (4de96a06, to-be 2.067), but looks like the issues has been present since the initial merge of std.parallelism.

Again a case of @trusted used on a template function without sufficient constraints.