chore: fix some minor issues in comments (#15787)

### What does this PR try to resolve?

 fix some minor issues in comments

### How to test and review this PR?

No need.

Author: epage

src/cargo/core/profiles.rs

@@ -623,10 +623,10 @@ pub struct Profile {
     pub incremental: bool,
     pub panic: PanicStrategy,
     pub strip: Strip,
-    #[serde(skip_serializing_if = "Vec::is_empty")] // remove when `rustflags` is stablized
+    #[serde(skip_serializing_if = "Vec::is_empty")] // remove when `rustflags` is stabilized
     // Note that `rustflags` is used for the cargo-feature `profile_rustflags`
     pub rustflags: Vec<InternedString>,
-    // remove when `-Ztrim-paths` is stablized
+    // remove when `-Ztrim-paths` is stabilized
     #[serde(skip_serializing_if = "Option::is_none")]
     pub trim_paths: Option<TomlTrimPaths>,
     #[serde(skip_serializing_if = "Option::is_none")]

src/cargo/ops/vendor.rs

@@ -293,7 +293,7 @@ fn sync(
                     registry.unpack_package_in(id, staging_dir.path(), &vendor_this)?;
                 if let Err(e) = fs::rename(&unpacked_src, &dst) {
                     // This fallback is mainly for Windows 10 versions earlier than 1607.
-                    // The destination of `fs::rename` can't be a diretory in older versions.
+                    // The destination of `fs::rename` can't be a directory in older versions.
                     // Can be removed once the minimal supported Windows version gets bumped.
                     tracing::warn!("failed to `mv {unpacked_src:?} {dst:?}`: {e}");
                     let paths: Vec<_> = walkdir(&unpacked_src).map(|e| e.into_path()).collect();

src/cargo/util/semver_eval_ext.rs

@@ -384,7 +384,7 @@ mod matches_prerelease_semantic {
 
     #[test]
     fn test_less_upper_bound() {
-        // Lower bound without prerelase tag, so upper bound equivalent to <I.J.K-0
+        // Lower bound without prerelease tag, so upper bound equivalent to <I.J.K-0
         for r in &[
             req(">1.2.3, <2"),
             req(">1.2.3, <2.0"),
@@ -396,7 +396,7 @@ mod matches_prerelease_semantic {
             assert_match_none(r, &["2.0.0-0", "2.0.0", "2.1.2"]);
         }
 
-        // Lower bound has prerelase tag, so upper bound doesn't change.
+        // Lower bound has prerelease tag, so upper bound doesn't change.
         for r in &[
             req(">1.2.3-0, <2"),
             req(">1.2.3-0, <2.0"),

tests/build-std/main.rs

@@ -48,7 +48,7 @@ trait BuildStd: Sized {
     ///
     /// The environment is not isolated is to avoid excessive network requests
     /// and downloads. A side effect is `[BLOCKING]` will show up in stderr,
-    /// as a sign of package cahce lock contention when running other build-std
+    /// as a sign of package cache lock contention when running other build-std
     /// tests concurrently.
     fn build_std(&mut self) -> &mut Self;