[nextaccountic]

I mean, allocate something like

static ALLOCATION_ERROR: Box<dyn Error> = (something);

and then use this variable whenever there is an allocation error. you might need unsafe { } but that's okay, the stdlib is full of unsafe

[fweimer]

If you use it for producing the Box in the return value, you have to move out of it, and then it's gone. If you don't move it, you have a use-after-free bug after the first such panic has been caught and the box has been dropped as a result.