diff --git a/infra/k8s/argo/nsys-test-template.yaml b/infra/k8s/argo/nsys-test-template.yaml
index 4862bc78f..b5be4bc9b 100644
--- a/infra/k8s/argo/nsys-test-template.yaml
+++ b/infra/k8s/argo/nsys-test-template.yaml
@@ -213,12 +213,15 @@ spec:
             cargo test -p ml --release --lib --no-run 2>&1 | tee /cargo-target/nsys-compile.log
             cargo build -p ml --release --example train_baseline_rl 2>&1 | tee -a /cargo-target/nsys-compile.log
 
-            TEST_BIN=$(ls -t target/release/deps/ml-* 2>/dev/null \
+            # Honour CARGO_TARGET_DIR — outputs go to ${CARGO_TARGET_DIR}/release/deps,
+            # NOT the repo-relative target/. (CI workflow sets CARGO_TARGET_DIR=/cargo-target.)
+            TARGET_DIR="${CARGO_TARGET_DIR:-target}"
+            TEST_BIN=$(ls -t "$TARGET_DIR/release/deps/ml-"* 2>/dev/null \
               | grep -vE '\.(d|rcgu|rmeta|rlib|so|json)$' \
               | head -1)
             if [ -z "$TEST_BIN" ] || [ ! -x "$TEST_BIN" ]; then
-              echo "ERROR: could not locate compiled test binary"
-              ls -la target/release/deps/ | head -20
+              echo "ERROR: could not locate compiled test binary in $TARGET_DIR/release/deps/"
+              ls -la "$TARGET_DIR/release/deps/" 2>&1 | head -20
               exit 3
             fi
             echo "=== Test binary: $TEST_BIN ==="
diff --git a/infra/k8s/argo/sanitizer-test-template.yaml b/infra/k8s/argo/sanitizer-test-template.yaml
index 252b730b3..7bbf6dfcc 100644
--- a/infra/k8s/argo/sanitizer-test-template.yaml
+++ b/infra/k8s/argo/sanitizer-test-template.yaml
@@ -201,12 +201,15 @@ spec:
             cargo build -p ml --release --example train_baseline_rl 2>&1 | tee -a /cargo-target/sanitizer-compile.log
 
             # Locate the freshest ml-* test binary
-            TEST_BIN=$(ls -t target/release/deps/ml-* 2>/dev/null \
+            # Honour CARGO_TARGET_DIR — outputs go to ${CARGO_TARGET_DIR}/release/deps,
+            # NOT the repo-relative target/. (CI workflow sets CARGO_TARGET_DIR=/cargo-target.)
+            TARGET_DIR="${CARGO_TARGET_DIR:-target}"
+            TEST_BIN=$(ls -t "$TARGET_DIR/release/deps/ml-"* 2>/dev/null \
               | grep -vE '\.(d|rcgu|rmeta|rlib|so|json)$' \
               | head -1)
             if [ -z "$TEST_BIN" ] || [ ! -x "$TEST_BIN" ]; then
-              echo "ERROR: could not locate compiled test binary in target/release/deps/"
-              ls -la target/release/deps/ | head -20
+              echo "ERROR: could not locate compiled test binary in $TARGET_DIR/release/deps/"
+              ls -la "$TARGET_DIR/release/deps/" 2>&1 | head -20
               exit 3
             fi
             echo "=== Test binary: $TEST_BIN ==="