diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 1e1e43fa..9e712b80 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -72,7 +72,9 @@ jobs:
       - name: Install minimal dependencies versions
         run: cargo +nightly update -Z minimal-versions
 
-      - run: cargo check --workspace --features full
+      - run: cargo test --workspace --features full,testing-helpers
+                        -- --skip compile_fail
+        RUSTFLAGS: --cfg msrv
 
   no_std:
     runs-on: ubuntu-latest
diff --git a/tests/try_from.rs b/tests/try_from.rs
index a44cdd07..25e5a8b9 100644
--- a/tests/try_from.rs
+++ b/tests/try_from.rs
@@ -56,6 +56,7 @@ fn enum_with_complex_repr() {
     assert!(Enum::try_from(-1).is_err());
 }
 
+#[cfg(not(msrv))] // TODO: Remove once MSRV bumps 1.66 or higher.
 #[test]
 fn test_discriminants_on_enum_with_fields() {
     #[derive(TryFrom, Clone, Copy, Debug, Eq, PartialEq)]