Auto merge of #56340 - GuillaumeGomez:rollup, r=GuillaumeGomez

Rollup of 22 pull requests

Successful merges:

 - #55391 (bootstrap: clean up a few clippy findings)
 - #56021 (avoid features_untracked)
 - #56023 (atomic::Ordering: Get rid of misleading parts of intro)
 - #56080 (Reduce the amount of bold text at doc.rlo)
 - #56114 (Enclose type in backticks for "non-exhaustive patterns" error)
 - #56124 (Fix small doc mistake on std::io::read::read_to_end)
 - #56127 (Update an outdated comment in mir building)
 - #56148 (Add rustc-guide as a submodule)
 - #56149 (Make std::os::unix/linux::fs::MetadataExt::a/m/ctime* documentation clearer)
 - #56220 (Suggest appropriate place for lifetime when declared after type arguments)
 - #56223 (Make JSON output from -Zprofile-json valid)
 - #56236 (Remove unsafe `unsafe` inner function.)
 - #56255 (Update outdated code comments in StringReader)
 - #56257 (rustc-guide has moved to rust-lang/)
 - #56273 (Add missing doc link)
 - #56289 (Fix small typo in comment of thread::stack_size)
 - #56294 (Fix a typo in the documentation of std::ffi)
 - #56312 (Deduplicate literal -> constant lowering)
 - #56319 (fix futures creating aliasing mutable and shared ref)
 - #56321 (rustdoc: add bottom margin spacing to nested lists)
 - #56322 (resolve: Fix false-positives from lint `absolute_paths_not_starting_with_crate`)
 - #56330 (Clean up span in non-trailing `..` suggestion)

Failed merges:

r? @ghost

1 files changed, 12 insertions, 6 deletions

diff --git a/src/libstd/sys/unix/ext/fs.rs b/src/libstd/sys/unix/ext/fs.rs
index 507e9d88171..7e65bbdef2a 100644
--- a/src/libstd/sys/unix/ext/fs.rs
+++ b/src/libstd/sys/unix/ext/fs.rs
@@ -522,7 +522,7 @@ pub trait MetadataExt {
     /// ```
     #[stable(feature = "metadata_ext", since = "1.1.0")]
     fn size(&self) -> u64;
-    /// Returns the time of the last access to the file.
+    /// Returns the last access time of the file, in seconds since Unix Epoch.
     ///
     /// # Examples
     ///
@@ -539,7 +539,9 @@ pub trait MetadataExt {
     /// ```
     #[stable(feature = "metadata_ext", since = "1.1.0")]
     fn atime(&self) -> i64;
-    /// Returns the time of the last access to the file in nanoseconds.
+    /// Returns the last access time of the file, in nanoseconds since [`atime`].
+    ///
+    /// [`atime`]: #tymethod.atime
     ///
     /// # Examples
     ///
@@ -556,7 +558,7 @@ pub trait MetadataExt {
     /// ```
     #[stable(feature = "metadata_ext", since = "1.1.0")]
     fn atime_nsec(&self) -> i64;
-    /// Returns the time of the last modification of the file.
+    /// Returns the last modification time of the file, in seconds since Unix Epoch.
     ///
     /// # Examples
     ///
@@ -573,7 +575,9 @@ pub trait MetadataExt {
     /// ```
     #[stable(feature = "metadata_ext", since = "1.1.0")]
     fn mtime(&self) -> i64;
-    /// Returns the time of the last modification of the file in nanoseconds.
+    /// Returns the last modification time of the file, in nanoseconds since [`mtime`].
+    ///
+    /// [`mtime`]: #tymethod.mtime
     ///
     /// # Examples
     ///
@@ -590,7 +594,7 @@ pub trait MetadataExt {
     /// ```
     #[stable(feature = "metadata_ext", since = "1.1.0")]
     fn mtime_nsec(&self) -> i64;
-    /// Returns the time of the last status change of the file.
+    /// Returns the last status change time of the file, in seconds since Unix Epoch.
     ///
     /// # Examples
     ///
@@ -607,7 +611,9 @@ pub trait MetadataExt {
     /// ```
     #[stable(feature = "metadata_ext", since = "1.1.0")]
     fn ctime(&self) -> i64;
-    /// Returns the time of the last status change of the file in nanoseconds.
+    /// Returns the last status change time of the file, in nanoseconds since [`ctime`].
+    ///
+    /// [`ctime`]: #tymethod.ctime
     ///
     /// # Examples
     ///