...be destroying an |the compiler destroys the
                   |already destroyed value     |same object more than once

--

...not be running on an already destroyed object. It can potentially be worked around by...

...front` is not callable using a `const` object
app.d(6):        Consider adding `const` or...

...i already complained about `destroy` being in `object.d` and top top it all, it...

...the compiler to move a user-defined object).

The result is that Weka has had...

...Isn't the whole point that you're just transferring ownership of a constructed object?

...the source of the S object to the this object.

```d
struct MyStruct {
    int[] data...

...combinations of type qualifiers on the original object and the copy, you cannot do the...

...AA using `dup`:
https://dlang.org/phobos/object.html#.dup

Unfortunately this doesn't work...

...cast away type qualifiers from the target object.

---
import core.lifetime;

void example1() @safe
{
    const...