diff --git a/.github/workflows/failures.yml b/.github/workflows/failures.yml
index 66129f805d4..e5d94767fe7 100644
--- a/.github/workflows/failures.yml
+++ b/.github/workflows/failures.yml
@@ -94,12 +94,16 @@ jobs:
       run: cat tests/failing-non-lto-tests.txt >> tests/failing-ui-tests.txt
 
     - name: Run tests
+      # TODO: re-enable those tests for libgccjit 12.
+      if: matrix.libgccjit_version.gcc != 'libgccjit12.so'
       id: tests
       run: |
         ${{ matrix.libgccjit_version.env_extra }} ./y.sh test --release --clean --build-sysroot --test-failing-rustc ${{ matrix.libgccjit_version.extra }} | tee output_log
         rg --text "test result" output_log >> $GITHUB_STEP_SUMMARY
 
     - name: Run failing ui pattern tests for ICE
+      # TODO: re-enable those tests for libgccjit 12.
+      if: matrix.libgccjit_version.gcc != 'libgccjit12.so'
       id: ui-tests
       run: |
         ${{ matrix.libgccjit_version.env_extra }} ./y.sh test --release --test-failing-ui-pattern-tests ${{ matrix.libgccjit_version.extra }} | tee output_log_ui
diff --git a/tests/failing-ui-tests.txt b/tests/failing-ui-tests.txt
index 9672054cdad..ce867be7390 100644
--- a/tests/failing-ui-tests.txt
+++ b/tests/failing-ui-tests.txt
@@ -93,3 +93,4 @@ tests/ui/consts/zst_no_llvm_alloc.rs
 tests/ui/consts/const-eval/parse_ints.rs
 tests/ui/simd/intrinsic/generic-arithmetic-pass.rs
 tests/ui/backtrace/backtrace.rs
+tests/ui/lifetimes/tail-expr-lock-poisoning.rs