Use 1.50.0 in CI

jamwaffles · jamwaffles · commit b07352201379 · 2022-03-22T19:24:59.000Z
Required so we can use slice::fill
diff --git a/.circleci/config.yml b/.circleci/config.yml
@@ -1,6 +1,6 @@
 target_steps: &target_steps
   docker:
-    - image: circleci/rust:1.42.0
+    - image: cimg/rust:1.50.0
   steps:
     - checkout
     - restore_cache:
