diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
index 0627d784..78a98e17 100644
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@@ -13,6 +13,19 @@ jobs:
         os: [ubuntu, macos, windows]
     steps:
     - uses: actions/checkout@v2
+
+    # from: https://github.com/google/oss-fuzz/blob/7c3fe25727d36308fc32d34b1bd83895e52e1d44/.github/workflows/project_tests.yml#L65-L74
+    - name: Clear unnecessary files
+      run: |
+        df -h
+        sudo swapoff -a
+        sudo rm -f /swapfile
+        sudo apt clean
+        docker rmi $(docker images -a -q)
+        df -h
+        echo "Remove large unused folders, inspired by https://github.com/apache/flink/blame/master/tools/azure-pipelines/free_disk_space.sh"
+        sudo bash -c '(ionice -c 3 nice -n 19 rm -rf /usr/share/dotnet/ /usr/local/graalvm/ /usr/local/.ghcup/ /usr/local/share/powershell /usr/local/share/chromium /usr/local/lib/android /usr/local/lib/node_modules)&'
+
     - run: sudo apt install llvm
       if: matrix.os == 'ubuntu'
     - run: rustup default ${{ matrix.channel }}