Replace tempdir with tempfile, as the tempdir crate have been superce…

…ded by tempfile

Cargo.toml

@@ -20,7 +20,7 @@ regex = { version = "1.5.4", optional = true }
 lazy_static = "1"
 
 [dev-dependencies]
-tempdir = "0.3.7"
+tempfile = "3"
 
 [package.metadata.docs.rs]
 all-features = true

tests/basic.rs

@@ -1,4 +1,3 @@
-extern crate tempdir;
 extern crate which;
 
 #[cfg(all(unix, feature = "regex"))]
@@ -8,7 +7,7 @@ use std::fs;
 use std::io;
 use std::path::{Path, PathBuf};
 use std::{env, vec};
-use tempdir::TempDir;
+use tempfile::TempDir;
 
 struct TestFixture {
     /// Temp directory.
@@ -55,7 +54,7 @@ impl TestFixture {
     // tmp/c/bin.exe
     // tmp/c/bin.cmd
     pub fn new() -> TestFixture {
-        let tempdir = TempDir::new("which_tests").unwrap();
+        let tempdir = tempfile::tempdir().unwrap();
         let mut builder = fs::DirBuilder::new();
         builder.recursive(true);
         let mut paths = vec![];