From 3759a6695d12abcb7901c82a7b93d184deb55248 Mon Sep 17 00:00:00 2001
From: rchaser53 <tayoshizawa29@gmail.com>
Date: Sun, 14 Apr 2019 17:34:53 +0900
Subject: [PATCH] add the error mapping

---
 src/cargo-fmt/main.rs | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/src/cargo-fmt/main.rs b/src/cargo-fmt/main.rs
index 59b76a542792..55f098348b99 100644
--- a/src/cargo-fmt/main.rs
+++ b/src/cargo-fmt/main.rs
@@ -127,7 +127,14 @@ fn get_version() -> Result<i32, io::Error> {
     let mut command = Command::new("rustfmt")
         .stdout(std::process::Stdio::inherit())
         .args(&[String::from("--version")])
-        .spawn()?;
+        .spawn()
+        .map_err(|e| match e.kind() {
+            io::ErrorKind::NotFound => io::Error::new(
+                io::ErrorKind::Other,
+                "Could not run rustfmt, please make sure it is in your PATH.",
+            ),
+            _ => e,
+        })?;
     status.push(command.wait()?);
 
     Ok(status