Remove usages of Config::try_run

Commands should be run on Builder, if possible.

src/bootstrap/lib.rs

@@ -629,15 +629,12 @@ impl Build {
         }
 
         // Save any local changes, but avoid running `git stash pop` if there are none (since it will exit with an error).
-        #[allow(deprecated)] // diff-index reports the modifications through the exit status
-        let has_local_modifications = self
-            .config
-            .try_run(
-                Command::new("git")
-                    .args(&["diff-index", "--quiet", "HEAD"])
-                    .current_dir(&absolute_path),
-            )
-            .is_err();
+        // diff-index reports the modifications through the exit status
+        let has_local_modifications = !self.run_cmd(
+            Command::new("git")
+                .args(&["diff-index", "--quiet", "HEAD"])
+                .current_dir(&absolute_path),
+        );
         if has_local_modifications {
             self.run(Command::new("git").args(&["stash", "push"]).current_dir(&absolute_path));
         }

src/bootstrap/test.rs

@@ -21,6 +21,7 @@ use crate::compile;
 use crate::config::TargetSelection;
 use crate::dist;
 use crate::doc::DocumentationFormat;
+use crate::exec::BootstrapCommand;
 use crate::flags::Subcommand;
 use crate::llvm;
 use crate::render_tests::add_flags_and_try_run_tests;
@@ -801,8 +802,8 @@ impl Step for Clippy {
 
         let _guard = builder.msg_sysroot_tool(Kind::Test, compiler.stage, "clippy", host, host);
 
-        #[allow(deprecated)] // Clippy reports errors if it blessed the outputs
-        if builder.config.try_run(&mut cargo).is_ok() {
+        // Clippy reports errors if it blessed the outputs
+        if builder.run_cmd(&mut cargo) {
             // The tests succeeded; nothing to do.
             return;
         }
@@ -3087,7 +3088,7 @@ impl Step for CodegenCranelift {
             .arg("testsuite.extended_sysroot");
         cargo.args(builder.config.test_args());
 
-        #[allow(deprecated)]
-        builder.config.try_run(&mut cargo.into()).unwrap();
+        let mut cmd: Command = cargo.into();
+        builder.run_cmd(BootstrapCommand::from(&mut cmd).fail_fast());
     }
 }

src/bootstrap/tool.rs

@@ -108,8 +108,8 @@ impl Step for ToolBuild {
         );
 
         let mut cargo = Command::from(cargo);
-        #[allow(deprecated)] // we check this in `is_optional_tool` in a second
-        let is_expected = builder.config.try_run(&mut cargo).is_ok();
+        // we check this in `is_optional_tool` in a second
+        let is_expected = builder.run_cmd(&mut cargo);
 
         builder.save_toolstate(
             tool,