Investigate apparent slow processing/(execution) of boost usage

Anything including boost, even simple things like: https://godbolt.org/z/6YevM81sh takes 30+ seconds in the "JS" processing:


if you break the compilation, all the same boost fetching etc happens but it doesn't take long at all:


which to me implies we are doing something after a successful compilation that takes a while. I blame my daft code that removes unused asm.