Silence all the boilerplate around ./miri run and ./miri run-dep

src/tools/miri/miri

@@ -325,6 +325,7 @@ run|run-dep)
         MIRIFLAGS="$MIRIFLAGS --target $MIRI_TEST_TARGET"
     fi
 
+    CARGO="$CARGO --quiet"
     # First build and get a sysroot.
     $CARGO build $CARGO_EXTRA_FLAGS --manifest-path "$MIRIDIR"/Cargo.toml
     find_sysroot

src/tools/miri/tests/compiletest.rs

@@ -288,6 +288,5 @@ fn run_dep_mode(target: String, mut args: impl Iterator<Item = OsString>) -> Res
     cmd.arg(path);
 
     cmd.args(args);
-    println!("Running {cmd:?}");
     if cmd.spawn()?.wait()?.success() { Ok(()) } else { std::process::exit(1) }
 }