Auto merge of #105940 - matthiaskrgr:rollup-ho4po1t, r=matthiaskrgr

Rollup of 5 pull requests

Successful merges:

 - #105901 (Don't panic on stable since miri is not available there)
 - #105912 (rustdoc: force pre tags to have the default line height)
 - #105914 (rustdoc: Simplify CSS for scraped code examples code blocks)
 - #105933 (Add readable rustdoc display for tvOS and watchOS)
 - #105935 (docs/test: add UI test and long-form error docs for `E0377`)

Failed merges:

r? `@ghost`
`@rustbot` modify labels: rollup

4 files changed, 47 insertions, 0 deletions

diff --git a/src/test/rustdoc-gui/codeblock-sub.goml b/src/test/rustdoc-gui/codeblock-sub.goml
new file mode 100644
index 00000000000..cbd314d2791
--- /dev/null
+++ b/src/test/rustdoc-gui/codeblock-sub.goml
@@ -0,0 +1,5 @@
+// Test that code blocks nested within <sub> do not have a line height of 0.
+goto: "file://" + |DOC_PATH| + "/test_docs/codeblock_sub/index.html"
+
+store-property: (codeblock_sub_1, "#codeblock-sub-1", "offsetHeight")
+assert-property-false: ("#codeblock-sub-3", { "offsetHeight": |codeblock_sub_1| })
diff --git a/src/test/rustdoc-gui/src/test_docs/lib.rs b/src/test/rustdoc-gui/src/test_docs/lib.rs
index f1b69d4dc1d..51250439694 100644
--- a/src/test/rustdoc-gui/src/test_docs/lib.rs
+++ b/src/test/rustdoc-gui/src/test_docs/lib.rs
@@ -455,3 +455,22 @@ impl TypeWithImplDoc {
     /// fn doc
     pub fn test_fn() {}
 }
+
+/// <sub id="codeblock-sub-1">
+///
+/// ```
+/// one
+/// ```
+///
+/// </sub>
+///
+/// <sub id="codeblock-sub-3">
+///
+/// ```
+/// one
+/// two
+/// three
+/// ```
+///
+/// </sub>
+pub mod codeblock_sub {}
diff --git a/src/test/ui/error-codes/E0377.rs b/src/test/ui/error-codes/E0377.rs
new file mode 100644
index 00000000000..6da2c20956a
--- /dev/null
+++ b/src/test/ui/error-codes/E0377.rs
@@ -0,0 +1,14 @@
+#![feature(coerce_unsized)]
+use std::ops::CoerceUnsized;
+
+pub struct Foo<T: ?Sized> {
+    field_with_unsized_type: T,
+}
+
+pub struct Bar<T: ?Sized> {
+    field_with_unsized_type: T,
+}
+
+impl<T, U> CoerceUnsized<Bar<U>> for Foo<T> where T: CoerceUnsized<U> {} //~ ERROR E0377
+
+fn main() {}
diff --git a/src/test/ui/error-codes/E0377.stderr b/src/test/ui/error-codes/E0377.stderr
new file mode 100644
index 00000000000..bf7d8c8d39d
--- /dev/null
+++ b/src/test/ui/error-codes/E0377.stderr
@@ -0,0 +1,9 @@
+error[E0377]: the trait `CoerceUnsized` may only be implemented for a coercion between structures with the same definition; expected `Foo`, found `Bar`
+  --> $DIR/E0377.rs:12:1
+   |
+LL | impl<T, U> CoerceUnsized<Bar<U>> for Foo<T> where T: CoerceUnsized<U> {}
+   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+error: aborting due to previous error
+
+For more information about this error, try `rustc --explain E0377`.