diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 91f7d19..054bafc 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -1,12 +1,13 @@
 variables:
   CARGO_HOME: /tmp/cargo
+  CARGO_TARGET_DIR: /tmp/cargo/target
 
 build:
   script:
-    - nix-shell -p rustc cargo --run "sh -c '
+    - nix-shell -p rustc cargo --run "sh -c 'set -x;
       rustc -vV &&
       cargo -vV &&
       cargo build'"
 test:
   script:
-    - nix-shell -p cargo --run 'cargo test'
+    - nix-shell -p cargo --run 'set -x; cargo test'