diff --git a/src/test/ui/hrtb/due-to-where-clause.nll.stderr b/src/test/ui/hrtb/due-to-where-clause.nll.stderr
deleted file mode 100644
index 90803a0adb01b..0000000000000
--- a/src/test/ui/hrtb/due-to-where-clause.nll.stderr
+++ /dev/null
@@ -1,8 +0,0 @@
-error: higher-ranked subtype error
-  --> $DIR/due-to-where-clause.rs:2:5
-   |
-LL |     test::<FooS>(&mut 42);
-   |     ^^^^^^^^^^^^
-
-error: aborting due to previous error
-
diff --git a/src/test/ui/hrtb/hrtb-cache-issue-54302.nll.stderr b/src/test/ui/hrtb/hrtb-cache-issue-54302.nll.stderr
deleted file mode 100644
index 4de35d70c30a3..0000000000000
--- a/src/test/ui/hrtb/hrtb-cache-issue-54302.nll.stderr
+++ /dev/null
@@ -1,8 +0,0 @@
-error: higher-ranked subtype error
-  --> $DIR/hrtb-cache-issue-54302.rs:19:5
-   |
-LL |     assert_deserialize_owned::<&'static str>();
-   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-
-error: aborting due to previous error
-
diff --git a/src/test/ui/hrtb/hrtb-just-for-static.nll.stderr b/src/test/ui/hrtb/hrtb-just-for-static.nll.stderr
index a812282def9a8..17d59bb321a45 100644
--- a/src/test/ui/hrtb/hrtb-just-for-static.nll.stderr
+++ b/src/test/ui/hrtb/hrtb-just-for-static.nll.stderr
@@ -17,11 +17,14 @@ LL |     want_hrtb::<&'a u32>()
    |
    = help: consider replacing `'a` with `'static`
 
-error: higher-ranked subtype error
+error: implementation of `Foo` is not general enough
   --> $DIR/hrtb-just-for-static.rs:30:5
    |
 LL |     want_hrtb::<&'a u32>()
-   |     ^^^^^^^^^^^^^^^^^^^^
+   |     ^^^^^^^^^^^^^^^^^^^^ implementation of `Foo` is not general enough
+   |
+   = note: `Foo<&'0 isize>` would have to be implemented for the type `&u32`, for any lifetime `'0`...
+   = note: ...but `Foo<&'1 isize>` is actually implemented for the type `&'1 u32`, for some specific lifetime `'1`
 
 error: aborting due to 3 previous errors
 
diff --git a/src/test/ui/issues/issue-54302.nll.stderr b/src/test/ui/issues/issue-54302.nll.stderr
deleted file mode 100644
index e68de0312824d..0000000000000
--- a/src/test/ui/issues/issue-54302.nll.stderr
+++ /dev/null
@@ -1,8 +0,0 @@
-error: higher-ranked subtype error
-  --> $DIR/issue-54302.rs:13:5
-   |
-LL |     assert_deserialize_owned::<&'static str>();
-   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-
-error: aborting due to previous error
-