kill process if there was an error during reading to not leave a zombie

core/os/os2/process.odin

@@ -395,6 +395,9 @@ process_exec :: proc(
 		process = process_start(desc) or_return
 	}
 
+	{
+		defer if err != nil { _ = process_kill(process) }
+
 		stdout_builder := strings.builder_make(allocator) or_return
 		stderr_builder := strings.builder_make(allocator) or_return
 
@@ -440,9 +443,9 @@ process_exec :: proc(
 				}
 			}
 		}
+	}
 
-	err = nil
-	state = process_wait(process) or_return
+	state, err = process_wait(process)
 	return
 }