build.run_quiet(cmd);
--- a/src/bootstrap/lib.rs
+++ b/src/bootstrap/lib.rs
-@@ -134,7 +134,7 @@
+@@ -134,13 +134,13 @@
#[cfg(unix)]
extern crate libc;
use std::collections::{HashSet, HashMap};
use std::env;
use std::fs::{self, File};
+ use std::io::Read;
+ use std::path::{PathBuf, Path};
+-use std::process::Command;
++use std::process::{self, Command};
+ use std::slice;
+
+ use build_helper::{run_silent, run_suppressed, try_run_silent, try_run_suppressed, output, mtime};
@@ -245,7 +245,7 @@
crates: HashMap<Interned<String>, Crate>,
is_sudo: bool,