diff --git a/.circleci/ccache.conf b/.circleci/ccache.conf
index 4e782aab1350f..08c87c852b3df 100644
--- a/.circleci/ccache.conf
+++ b/.circleci/ccache.conf
@@ -1,3 +1 @@
-debug = true
-debug_level = 1
 compiler_check = none
diff --git a/.circleci/config.yml b/.circleci/config.yml
index 3c3b9f30696d8..7e2dea6a0c1fb 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -209,11 +209,6 @@ commands:
       - run:
           name: "Ccache stats and configuration"
           command: |
-            ls -l ~/cache/sysroot/lib/wasm32-emscripten || echo "no build"
-            ls -l ~/cache/sysroot/include/emscripten/heap.h
-            cat ~/cache/sysroot/lib/wasm32-emscripten/crtbegin.o.ccache-log
-            date
-            cat ~/cache/build/libcompiler_rt/absvdi2.o.ccache-log
             ccache -s
             ccache --print-stats
             ccache -p
@@ -617,6 +612,14 @@ jobs:
             mkdir -p ~/.ccache
             cat .circleci/ccache.conf
             cp .circleci/ccache.conf ~/.ccache
+      - when:
+          condition:
+            not:
+              equal: [ "main", << pipeline.git.branch >> ]
+          steps:
+            - run:
+                name: Set ccache readonly
+                command: echo "read_only = true" >> ~/.ccache/ccache.conf
       - build-libs
       - run:
           name: Clean build directory