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diff --git a/tests/rustdoc-ui/unable-fulfill-trait.stderr b/tests/rustdoc-ui/unable-fulfill-trait.stderr
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+error[E0107]: this trait takes 1 generic argument but 0 generic arguments were supplied
+  --> $DIR/unable-fulfill-trait.rs:4:17
+   |
+LL |     field1: dyn Bar<'a, 'b,>,
+   |                 ^^^ expected 1 generic argument
+   |
+note: trait defined here, with 1 generic parameter: `U`
+  --> $DIR/unable-fulfill-trait.rs:9:11
+   |
+LL | pub trait Bar<'x, 's, U>
+   |           ^^^         -
+help: add missing generic argument
+   |
+LL |     field1: dyn Bar<'a, 'b, U,>,
+   |                           +++
+
+error[E0227]: ambiguous lifetime bound, explicit lifetime bound required
+  --> $DIR/unable-fulfill-trait.rs:4:13
+   |
+LL |     field1: dyn Bar<'a, 'b,>,
+   |             ^^^^^^^^^^^^^^^^
+
+error: aborting due to 2 previous errors
+
+Some errors have detailed explanations: E0107, E0227.
+For more information about an error, try `rustc --explain E0107`.