Rollup of 4 pull requests

src/libcore/any.rs

@@ -476,11 +476,15 @@ pub const fn type_name<T: ?Sized>() -> &'static str {
 ///
 /// This is intended for diagnostic use. The exact contents and format of the
 /// string are not specified, other than being a best-effort description of the
-/// type. For example, `type_name_of::<Option<String>>(None)` could return
+/// type. For example, `type_name_of_val::<Option<String>>(None)` could return
 /// `"Option<String>"` or `"std::option::Option<std::string::String>"`, but not
 /// `"foobar"`. In addition, the output may change between versions of the
 /// compiler.
 ///
+/// This function does not resolve trait objects,
+/// meaning that `type_name_of_val(&7u32 as &dyn Debug)`
+/// may return `"dyn Debug"`, but not `"u32"`.
+///
 /// The type name should not be considered a unique identifier of a type;
 /// multiple types may share the same type name.
 ///

src/librustc_error_codes/error_codes/E0200.md

@@ -1,14 +1,23 @@
+An unsafe trait was implemented without an unsafe implementation.
+
+Erroneous code example:
+
+```compile_fail,E0200
+struct Foo;
+
+unsafe trait Bar { }
+
+impl Bar for Foo { } // error!
+```
+
 Unsafe traits must have unsafe implementations. This error occurs when an
 implementation for an unsafe trait isn't marked as unsafe. This may be resolved
 by marking the unsafe implementation as unsafe.
 
-```compile_fail,E0200
+```
 struct Foo;
 
 unsafe trait Bar { }
 
-// this won't compile because Bar is unsafe and impl isn't unsafe
-impl Bar for Foo { }
-// this will compile
-unsafe impl Bar for Foo { }
+unsafe impl Bar for Foo { } // ok!
 ```

src/librustdoc/html/markdown.rs

@@ -380,7 +380,10 @@ impl<'a, 'b, 'ids, I: Iterator<Item = Event<'a>>> Iterator for HeadingLinks<'a,
                     }
                     _ => {}
                 }
-                self.buf.push_back(event);
+                match event {
+                    Event::Start(Tag::Link(_, _, _)) | Event::End(Tag::Link(..)) => {}
+                    event => self.buf.push_back(event),
+                }
             }
             let id = self.id_map.derive(id);
 
@@ -395,7 +398,7 @@ impl<'a, 'b, 'ids, I: Iterator<Item = Event<'a>>> Iterator for HeadingLinks<'a,
 
             let start_tags = format!(
                 "<h{level} id=\"{id}\" class=\"section-header\">\
-                                      <a href=\"#{id}\">",
+                    <a href=\"#{id}\">",
                 id = id,
                 level = level
             );

src/libstd/time.rs

@@ -65,7 +65,7 @@ pub use core::time::Duration;
 ///
 /// |  Platform |               System call                                            |
 /// |:---------:|:--------------------------------------------------------------------:|
-/// | Cloud ABI | [clock_time_get (Monotonic Clock)]                                   |
+/// | CloudABI  | [clock_time_get (Monotonic Clock)]                                   |
 /// | SGX       | [`insecure_time` usercall]. More information on [timekeeping in SGX] |
 /// | UNIX      | [clock_gettime (Monotonic Clock)]                                    |
 /// | Darwin    | [mach_absolute_time]                                                 |
@@ -79,7 +79,7 @@ pub use core::time::Duration;
 /// [__wasi_clock_time_get (Monotonic Clock)]: https://github.com/CraneStation/wasmtime/blob/master/docs/WASI-api.md#clock_time_get
 /// [clock_gettime (Monotonic Clock)]: https://linux.die.net/man/3/clock_gettime
 /// [mach_absolute_time]: https://developer.apple.com/library/archive/documentation/Darwin/Conceptual/KernelProgramming/services/services.html
-/// [clock_time_get (Monotonic Clock)]: https://github.com/NuxiNL/cloudabi/blob/master/cloudabi.txt
+/// [clock_time_get (Monotonic Clock)]: https://nuxi.nl/cloudabi/#clock_time_get
 ///
 /// **Disclaimer:** These system calls might change over time.
 ///
@@ -144,15 +144,15 @@ pub struct Instant(time::Instant);
 ///
 /// |  Platform |               System call                                            |
 /// |:---------:|:--------------------------------------------------------------------:|
-/// | Cloud ABI | [clock_time_get (Realtime Clock)]                                    |
+/// | CloudABI  | [clock_time_get (Realtime Clock)]                                    |
 /// | SGX       | [`insecure_time` usercall]. More information on [timekeeping in SGX] |
 /// | UNIX      | [clock_gettime (Realtime Clock)]                                     |
 /// | DARWIN    | [gettimeofday]                                                       |
 /// | VXWorks   | [clock_gettime (Realtime Clock)]                                     |
 /// | WASI      | [__wasi_clock_time_get (Realtime Clock)]                             |
 /// | Windows   | [GetSystemTimeAsFileTime]                                            |
 ///
-/// [clock_time_get (Realtime Clock)]: https://github.com/NuxiNL/cloudabi/blob/master/cloudabi.txt
+/// [clock_time_get (Realtime Clock)]: https://nuxi.nl/cloudabi/#clock_time_get
 /// [`insecure_time` usercall]: https://edp.fortanix.com/docs/api/fortanix_sgx_abi/struct.Usercalls.html#method.insecure_time
 /// [timekeeping in SGX]: https://edp.fortanix.com/docs/concepts/rust-std/#codestdtimecode
 /// [gettimeofday]: http://man7.org/linux/man-pages/man2/gettimeofday.2.html

src/test/rustdoc/remove-url-from-headings.rs

@@ -0,0 +1,17 @@
+#![crate_name = "foo"]
+
+// @has foo/fn.foo.html
+// !@has - '//a[@href="http://a.a"]'
+// @has - '//a[@href="#implementing-stuff-somewhere"]' 'Implementing stuff somewhere'
+// @has - '//a[@href="#another-one-urg"]' 'Another one urg'
+
+/// fooo
+///
+/// # Implementing [stuff](http://a.a "title") somewhere
+///
+/// hello
+///
+/// # Another [one][two] urg
+///
+/// [two]: http://a.a
+pub fn foo() {}