1 files changed, 26 insertions, 0 deletions
diff --git a/tests/ui/lifetimes/issue-54378.rs b/tests/ui/lifetimes/issue-54378.rs
new file mode 100644
index 000000000..aa42d4a7c
--- /dev/null
+++ b/tests/ui/lifetimes/issue-54378.rs
@@ -0,0 +1,26 @@
+// check-pass
+
+// Regression test for #54378.
+
+#![feature(never_type)]
+
+use std::marker::PhantomData;
+
+pub trait Machine<'a, 'mir, 'tcx>: Sized {
+    type MemoryKinds: ::std::fmt::Debug + Copy + Eq;
+    const MUT_STATIC_KIND: Option<Self::MemoryKinds>;
+}
+
+pub struct CompileTimeEvaluator<'a, 'mir, 'tcx: 'a+'mir> {
+    pub _data: PhantomData<(&'a (), &'mir (), &'tcx ())>,
+}
+
+impl<'a, 'mir, 'tcx: 'a + 'mir> Machine<'a, 'mir, 'tcx>
+    for CompileTimeEvaluator<'a, 'mir, 'tcx>
+{
+    type MemoryKinds = !;
+
+    const MUT_STATIC_KIND: Option<!> = None;
+}
+
+fn main() {}