but i'm not on ubuntu, i'm on windows!
If you are using Windows, you will not be able to use the pre-built Crystal package as it is only available for Linux-based systems. In order to use Crystal on Windows, you will need to build it from source by following the instructions on the Crystal website. Alternatively, you can try using a different package manager or pre-built package that is available for Windows. You can also try using a virtual machine or dual-booting to install a Linux-based operating system and use the pre-built Crystal package on that system.
SIGPWR, Power fail/restart, but I think I'have had others too. I am just generally wondering if it's possible to debug multithreading applications.
0, 1, 3, ...
0, 1, 2, ...*
Foo.new id: 1