Fix the doc link to raw::stat on s390x

0001-doc-disambiguate-stat-in-MetadataExt-as_raw_stat.patch

@@ -0,0 +1,46 @@
+From f200c1e7afdd04b42c01c0108735e5b14ca07d93 Mon Sep 17 00:00:00 2001
+From: Josh Stone <jistone@redhat.com>
+Date: Fri, 9 Oct 2020 20:12:26 -0700
+Subject: [PATCH] doc: disambiguate stat in MetadataExt::as_raw_stat
+
+A few architectures in `os::linux::raw` import `libc::stat`, rather than
+defining that type directly. However, that also imports the _function_
+called `stat`, which makes this doc link ambiguous:
+
+    error: `crate::os::linux::raw::stat` is both a struct and a function
+      --> library/std/src/os/linux/fs.rs:21:19
+       |
+    21 |     /// [`stat`]: crate::os::linux::raw::stat
+       |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^ ambiguous link
+       |
+       = note: `-D broken-intra-doc-links` implied by `-D warnings`
+    help: to link to the struct, prefix with the item type
+       |
+    21 |     /// [`stat`]: struct@crate::os::linux::raw::stat
+       |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+    help: to link to the function, add parentheses
+       |
+    21 |     /// [`stat`]: crate::os::linux::raw::stat()
+       |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+We want the `struct`, so it's now prefixed accordingly.
+---
+ library/std/src/os/linux/fs.rs | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/library/std/src/os/linux/fs.rs b/library/std/src/os/linux/fs.rs
+index ff23c3d67e3b..9b7af97616c9 100644
+--- a/library/std/src/os/linux/fs.rs
++++ b/library/std/src/os/linux/fs.rs
+@@ -20,7 +20,7 @@ pub trait MetadataExt {
+     /// Unix platforms. The `os::unix::fs::MetadataExt` trait contains the
+     /// cross-Unix abstractions contained within the raw stat.
+     ///
+-    /// [`stat`]: crate::os::linux::raw::stat
++    /// [`stat`]: struct@crate::os::linux::raw::stat
+     ///
+     /// # Examples
+     ///
+-- 
+2.26.2
+

rust.spec

@@ -70,6 +70,9 @@ Source0:        https://static.rust-lang.org/dist/%{rustc_package}.tar.xz
 # https://github.com/rust-lang/backtrace-rs/pull/373
 Patch1:         0001-use-NativeEndian-in-symbolize-gimli-Context.patch
 
+# https://github.com/rust-lang/rust/pull/77777
+Patch2:         0001-doc-disambiguate-stat-in-MetadataExt-as_raw_stat.patch
+
 ### RHEL-specific patches below ###
 
 # Disable cargo->libgit2->libssh2 on RHEL, as it's not approved for FIPS (rhbz1732949)
@@ -406,6 +409,7 @@ test -f '%{local_rust_root}/bin/rustc'
 %setup -q -n %{rustc_package}
 
 %patch1 -p1 -d library/backtrace
+%patch2 -p1
 
 %if %with disabled_libssh2
 %patch100 -p1