applease clippy

src/bootstrap/src/core/build_steps/dist.rs

@@ -78,7 +78,7 @@ impl Step for Docs {
 
         let mut tarball = Tarball::new(builder, "rust-docs", &host.triple);
         tarball.set_product_name("Rust Documentation");
-        tarball.add_bulk_dir(&builder.doc_out(host), dest);
+        tarball.add_bulk_dir(builder.doc_out(host), dest);
         tarball.add_file(builder.src.join("src/doc/robots.txt"), dest, 0o644);
         Some(tarball.generate())
     }
@@ -117,7 +117,7 @@ impl Step for JsonDocs {
         let mut tarball = Tarball::new(builder, "rust-docs-json", &host.triple);
         tarball.set_product_name("Rust Documentation In JSON Format");
         tarball.is_preview(true);
-        tarball.add_bulk_dir(&builder.json_doc_out(host), dest);
+        tarball.add_bulk_dir(builder.json_doc_out(host), dest);
         Some(tarball.generate())
     }
 }
@@ -148,7 +148,7 @@ impl Step for RustcDocs {
 
         let mut tarball = Tarball::new(builder, "rustc-docs", &host.triple);
         tarball.set_product_name("Rustc Documentation");
-        tarball.add_bulk_dir(&builder.compiler_doc_out(host), "share/doc/rust/html/rustc");
+        tarball.add_bulk_dir(builder.compiler_doc_out(host), "share/doc/rust/html/rustc");
         Some(tarball.generate())
     }
 }

src/bootstrap/src/core/build_steps/doc.rs

@@ -378,7 +378,7 @@ impl Step for Standalone {
                 .arg(&favicon)
                 .arg("--markdown-no-toc")
                 .arg("--index-page")
-                .arg(&builder.src.join("src/doc/index.md"))
+                .arg(builder.src.join("src/doc/index.md"))
                 .arg("--markdown-playground-url")
                 .arg("https://play.rust-lang.org/")
                 .arg("-o")
@@ -482,7 +482,7 @@ impl Step for Releases {
                 .arg("--markdown-css")
                 .arg("rust.css")
                 .arg("--index-page")
-                .arg(&builder.src.join("src/doc/index.md"))
+                .arg(builder.src.join("src/doc/index.md"))
                 .arg("--markdown-playground-url")
                 .arg("https://play.rust-lang.org/")
                 .arg("-o")

src/bootstrap/src/core/build_steps/format.rs

@@ -15,7 +15,7 @@ fn rustfmt(src: &Path, rustfmt: &Path, paths: &[PathBuf], check: bool) -> impl F
     let mut cmd = Command::new(rustfmt);
     // Avoid the submodule config paths from coming into play. We only allow a single global config
     // for the workspace for now.
-    cmd.arg("--config-path").arg(&src.canonicalize().unwrap());
+    cmd.arg("--config-path").arg(src.canonicalize().unwrap());
     cmd.arg("--edition").arg("2021");
     cmd.arg("--unstable-features");
     cmd.arg("--skip-children");

src/bootstrap/src/core/build_steps/test.rs

@@ -308,7 +308,7 @@ impl Step for Cargo {
         // Forcibly disable tests using nightly features since any changes to
         // those features won't be able to land.
         cargo.env("CARGO_TEST_DISABLE_NIGHTLY", "1");
-        cargo.env("PATH", &path_for_cargo(builder, compiler));
+        cargo.env("PATH", path_for_cargo(builder, compiler));
 
         #[cfg(feature = "build-metrics")]
         builder.metrics.begin_test_suite(
@@ -2559,7 +2559,7 @@ fn prepare_cargo_test(
         cargo.arg("-p").arg(krate);
     }
 
-    cargo.arg("--").args(&builder.config.test_args()).args(libtest_args);
+    cargo.arg("--").args(builder.config.test_args()).args(libtest_args);
     if !builder.config.verbose_tests {
         cargo.arg("--quiet");
     }
@@ -3108,7 +3108,7 @@ impl Step for TierCheck {
             &[],
         );
         cargo.arg(builder.src.join("src/doc/rustc/src/platform-support.md"));
-        cargo.arg(&builder.rustc(self.compiler));
+        cargo.arg(builder.rustc(self.compiler));
         if builder.is_verbose() {
             cargo.arg("--verbose");
         }

src/bootstrap/src/core/build_steps/tool.rs

@@ -199,7 +199,7 @@ pub fn prepare_tool_cargo(
         cargo.env("CFG_COMMIT_DATE", date);
     }
     if !features.is_empty() {
-        cargo.arg("--features").arg(&features.join(", "));
+        cargo.arg("--features").arg(features.join(", "));
     }
 
     // Enable internal lints for clippy and rustdoc

src/bootstrap/src/lib.rs

@@ -624,7 +624,7 @@ impl Build {
             self.config
                 .git()
                 .args(["config", "--file"])
-                .arg(&self.config.src.join(".gitmodules"))
+                .arg(self.config.src.join(".gitmodules"))
                 .args(["--get-regexp", "path"]),
         );
         for line in output.lines() {