diff -r 4e09b7829b51 -r f40dfaf2166d src/lib.rs
--- a/src/lib.rs	Tue Nov 01 09:24:45 2022 +0200
+++ b/src/lib.rs	Fri Nov 18 10:29:50 2022 +0200
@@ -19,6 +19,8 @@
 
 #![feature(float_minimum_maximum)]
 
+#![feature(get_mut_unchecked)]
+
 // They don't work:
 //#![feature(negative_impls)]
 //#![feature(specialization)]