Sweep: close circular tools before cutting a torus (#2005) (#2010)

Thanks @fkirill.

crates/kernel/src/lib.rs

@@ -59,6 +59,8 @@ mod issue_1080_tests;
 #[cfg(test)]
 mod issue_1510_tests;
 #[cfg(test)]
+mod issue_2005_tests;
+#[cfg(test)]
 mod issue_324_tests;
 #[cfg(test)]
 mod issue_616_tests;