diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 2ad87f2f3f..20666dacc2 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -23,6 +23,7 @@ rust-nightly:
     - source /root/.cargo/env
     - cargo build
     - cargo test --verbose
+    - cp target/ /cache
   allow_failure: false
 
 # # our own git fetch command like https://gitlab.com/gitlab-org/gitlab-runner/blob/master/shells/abstract.go