Auto merge of rust-lang#77172 - jonas-schievink:rollup-a041rou, r=jonas-schievink

Rollup of 15 pull requests

Successful merges:

 - rust-lang#75438 (Use adaptive SVG favicon for rustdoc like other rust sites)
 - rust-lang#76304 (Make delegation methods of `std::net::IpAddr` unstably const)
 - rust-lang#76724 (Allow a unique name to be assigned to dataflow graphviz output)
 - rust-lang#76978 (Documented From impls in std/sync/mpsc/mod.rs)
 - rust-lang#77044 (Liballoc bench vec use mem take not replace)
 - rust-lang#77050 (Typo fix: "satsify" -> "satisfy")
 - rust-lang#77074 (add array::from_ref)
 - rust-lang#77078 (Don't use an if guard to check equality with a constant)
 - rust-lang#77079 (Use `Self` in docs when possible)
 - rust-lang#77081 (Merge two almost identical match arms)
 - rust-lang#77121 (Updated html_root_url for compiler crates)
 - rust-lang#77136 (Suggest `const_mut_refs`, not `const_fn` for mutable references in `const fn`)
 - rust-lang#77160 (Suggest `const_fn_transmute`, not `const_fn`)
 - rust-lang#77164 (Remove workaround for deref issue that no longer exists.)
 - rust-lang#77165 (Followup to rust-lang#76673)

Failed merges:

r? `@ghost`

Author: bors

compiler/rustc_apfloat/src/lib.rs

@@ -30,7 +30,7 @@
 //!
 //! This API is completely unstable and subject to change.
 
-#![doc(html_root_url = "https://doc.rust-lang.org/nightly/")]
+#![doc(html_root_url = "https://doc.rust-lang.org/nightly/nightly-rustc/")]
 #![no_std]
 #![forbid(unsafe_code)]
 #![feature(nll)]

compiler/rustc_arena/src/lib.rs

@@ -8,7 +8,7 @@
 //! This crate implements several kinds of arena.
 
 #![doc(
-    html_root_url = "https://doc.rust-lang.org/nightly/",
+    html_root_url = "https://doc.rust-lang.org/nightly/nightly-rustc/",
     test(no_crate_inject, attr(deny(warnings)))
 )]
 #![feature(dropck_eyepatch)]

compiler/rustc_ast/src/lib.rs

@@ -4,7 +4,10 @@
 //!
 //! This API is completely unstable and subject to change.
 
-#![doc(html_root_url = "https://doc.rust-lang.org/nightly/", test(attr(deny(warnings))))]
+#![doc(
+    html_root_url = "https://doc.rust-lang.org/nightly/nightly-rustc/",
+    test(attr(deny(warnings)))
+)]
 #![feature(box_syntax)]
 #![feature(const_fn)] // For the `transmute` in `P::new`
 #![feature(const_fn_transmute)]

compiler/rustc_attr/src/builtin.rs

@@ -301,7 +301,7 @@ where
                                                 .emit();
                                             };
                                             match issue.parse() {
-                                                Ok(num) if num == 0 => {
+                                                Ok(0) => {
                                                     emit_diag(
                                                         "`issue` must not be \"0\", \
                                                         use \"none\" instead",

compiler/rustc_builtin_macros/src/format_foreign.rs

@@ -518,8 +518,7 @@ pub mod printf {
                         .and_then(|end| end.at_next_cp())
                         .map(|end| (next.slice_between(end).unwrap(), end));
                     let end = match end {
-                        Some(("32", end)) => end,
-                        Some(("64", end)) => end,
+                        Some(("32" | "64", end)) => end,
                         _ => next,
                     };
                     state = Type;

compiler/rustc_builtin_macros/src/lib.rs

@@ -1,7 +1,7 @@
 //! This crate contains implementations of built-in macros and other code generating facilities
 //! injecting code into the crate before it is lowered to HIR.
 
-#![doc(html_root_url = "https://doc.rust-lang.org/nightly/")]
+#![doc(html_root_url = "https://doc.rust-lang.org/nightly/nightly-rustc/")]
 #![feature(bool_to_option)]
 #![feature(crate_visibility_modifier)]
 #![feature(decl_macro)]

compiler/rustc_codegen_llvm/src/lib.rs

@@ -4,7 +4,7 @@
 //!
 //! This API is completely unstable and subject to change.
 
-#![doc(html_root_url = "https://doc.rust-lang.org/nightly/")]
+#![doc(html_root_url = "https://doc.rust-lang.org/nightly/nightly-rustc/")]
 #![feature(bool_to_option)]
 #![feature(const_cstr_unchecked)]
 #![feature(crate_visibility_modifier)]

compiler/rustc_codegen_ssa/src/lib.rs

@@ -1,4 +1,4 @@
-#![doc(html_root_url = "https://doc.rust-lang.org/nightly/")]
+#![doc(html_root_url = "https://doc.rust-lang.org/nightly/nightly-rustc/")]
 #![feature(bool_to_option)]
 #![feature(option_expect_none)]
 #![feature(box_patterns)]

compiler/rustc_data_structures/src/lib.rs

@@ -6,7 +6,7 @@
 //!
 //! This API is completely unstable and subject to change.
 
-#![doc(html_root_url = "https://doc.rust-lang.org/nightly/")]
+#![doc(html_root_url = "https://doc.rust-lang.org/nightly/nightly-rustc/")]
 #![allow(incomplete_features)]
 #![feature(array_windows)]
 #![feature(control_flow_enum)]

compiler/rustc_driver/src/lib.rs

@@ -4,7 +4,7 @@
 //!
 //! This API is completely unstable and subject to change.
 
-#![doc(html_root_url = "https://doc.rust-lang.org/nightly/")]
+#![doc(html_root_url = "https://doc.rust-lang.org/nightly/nightly-rustc/")]
 #![feature(nll)]
 #![feature(once_cell)]
 #![recursion_limit = "256"]