FWIW, I'm getting the `finalizerCalled` message on Nim v0.18.1 with release and
non-release options.
$ nim -v
Nim Compiler Version 0.18.1 [MacOSX: amd64]
Compiled at 2018-05-28
Copyright (c) 2006-2018 by Andreas Rumpf
Run
I'll complement Araq's (perhaps too blunt) answer by saying that few
programmers generally rely on GC for deterministic and time-sensitive execution
of finalizers (and few mainstream industrial platforms can provide such
guarantees, especially under heavy multi-threaded & concurrent execution).
Where such behavior is needed, programmers generally adopt a design for
lifecycle management of important objects/resources, such as using delimited
lifetime blocks, custom ref-counting, custom allocators, etc.
