From 449db68910570dea654304d4e6cf48b1e75d5043 Mon Sep 17 00:00:00 2001
From: Petr Hosek <phosek@google.com>
Date: Sun, 9 Jun 2019 16:57:17 -0700
Subject: [PATCH] Use Build::read_dir instead of fs::read_dir in Build::cp_r

Build::read_dir does better error handling when the directory doesn't
exist; it actually prints the name of the directory rather than just
printing the underlying error "No such file or directory" which on
its own isn't very useful.
---
 src/bootstrap/lib.rs | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/src/bootstrap/lib.rs b/src/bootstrap/lib.rs
index ca4489655ca7b..b9d287abb0c7e 100644
--- a/src/bootstrap/lib.rs
+++ b/src/bootstrap/lib.rs
@@ -1214,8 +1214,7 @@ impl Build {
     /// when this function is called.
     pub fn cp_r(&self, src: &Path, dst: &Path) {
         if self.config.dry_run { return; }
-        for f in t!(fs::read_dir(src)) {
-            let f = t!(f);
+        for f in self.read_dir(src) {
             let path = f.path();
             let name = path.file_name().unwrap();
             let dst = dst.join(name);