chore: checkpoint before Python removal

vendor/async-trait/tests/ui/self-span.stderr

@@ -0,0 +1,32 @@
+error[E0308]: mismatched types
+  --> tests/ui/self-span.rs:17:21
+   |
+17 |         let _: () = self;
+   |                --   ^^^^ expected `()`, found `S`
+   |                |
+   |                expected due to this
+
+error: the `Self` constructor can only be used with tuple or unit structs
+  --> tests/ui/self-span.rs:18:23
+   |
+18 |         let _: Self = Self;
+   |                       ^^^^ help: use curly brackets: `Self { /* fields */ }`
+
+error[E0308]: mismatched types
+  --> tests/ui/self-span.rs:25:21
+   |
+25 |         let _: () = self;
+   |                --   ^^^^ expected `()`, found `E`
+   |                |
+   |                expected due to this
+
+error[E0533]: expected value, found struct variant `Self::V`
+  --> tests/ui/self-span.rs:26:23
+   |
+26 |         let _: Self = Self::V;
+   |                       ^^^^^^^ not a value
+   |
+help: you might have meant to create a new value of the struct
+   |
+26 |         let _: Self = Self::V {};
+   |                               ++