diff --git a/.github/workflows/macos.yml b/.github/workflows/macos.yml
index 5aab6c8b8b5886191ee9c144c488be69c923e8b9..424e34f423052ba8ffdbac7e4f9c62a1a56826d0 100644
--- a/.github/workflows/macos.yml
+++ b/.github/workflows/macos.yml
@@ -48,8 +48,6 @@ jobs:
 
       - name: Build contract template on ${{ matrix.platform }}-${{ matrix.toolchain }}
         run: |
-          cc --version
-          clang --version
           wasm-opt --version
           cargo -vV
           cargo run -- contract --version
diff --git a/.github/workflows/windows.yml b/.github/workflows/windows.yml
index a82df4c059a65fd6e2a8b74460f3460bed5fbb2c..e9a179bf37efe8a82fa82c3d6a076f0a02c18baf 100644
--- a/.github/workflows/windows.yml
+++ b/.github/workflows/windows.yml
@@ -51,8 +51,6 @@ jobs:
 
       - name: Build contract template on ${{ matrix.platform }}-${{ matrix.toolchain }}
         run: |
-          cc --version
-          clang --version
           wasm-opt --version
           cargo -vV
           cargo run -- contract --version
@@ -62,9 +60,11 @@ jobs:
           cargo run -- contract check --manifest-path=foobar/Cargo.toml
           cargo run -- contract test --manifest-path=foobar/Cargo.toml
 
-      - name: Run tests on {{ matrix.platform }}-${{ matrix.toolchain }}
-        # The tests take a long time in the GitHub Actions runner (~30 mins),
-        # hence we run them only on `master`.
-        if: github.ref == 'refs/heads/master'
-        run: |
-          cargo test --verbose --workspace --all-features
+      # This stage has to be deactivated until https://github.com/Vurich/crunchy/pull/10
+      # is merged and released.
+      # - name: Run tests on {{ matrix.platform }}-${{ matrix.toolchain }}
+      #  # The tests take a long time in the GitHub Actions runner (~30 mins),
+      #  # hence we run them only on `master`.
+      #  if: github.ref == 'refs/heads/master'
+      #  run: |
+      #    cargo test --verbose --workspace --all-features
diff --git a/src/cmd/test.rs b/src/cmd/test.rs
index 98b9dae139323e2ddd158987e0e30666a75f2072..3e31862b4d4b0827eab95a20ebeb397e5905c592 100644
--- a/src/cmd/test.rs
+++ b/src/cmd/test.rs
@@ -65,6 +65,9 @@ pub(crate) fn execute(manifest_path: &ManifestPath, verbosity: Verbosity) -> Res
         "Running tests".bright_green().bold()
     );
 
+    // We need to make sure that `RUSTFLAGS` are not set in the CI here.
+    // `cargo-contract` sets them when building contracts.
+    std::env::set_var("RUSTFLAGS", "");
     let stdout = util::invoke_cargo("test", &[""], manifest_path.directory(), verbosity)?;
 
     Ok(TestResult { stdout, verbosity })