DEBUG CI: Fiber::Stack.new raises a math overflow...

Author: ysbaddaden

src/fiber/stack.cr

@@ -7,7 +7,10 @@ class Fiber
     getter? reusable : Bool
 
     def initialize(@pointer : Void*, @bottom : Void*, *, @reusable = false)
-      @size = (@bottom - @pointer).to_i32
+      {% if flag?(:unix) %}
+        LibC.dprintf 2, "DEBUG: Fiber::Stack.new(%p, %p, %s)\n", @pointer, @bottom, @reusable ? "true" : "false"
+      {% end %}
+      @size = (@bottom - @pointer).to_i32!
     end
 
     def initialize(@pointer : Void*, @size : Int32, *, @reusable = false)