diff --git a/tests/common/macros.rs b/tests/common/macros.rs
old mode 100755
new mode 100644
diff --git a/tests/common/util.rs b/tests/common/util.rs
old mode 100755
new mode 100644
index 1193b79b0..76af81e18
--- a/tests/common/util.rs
+++ b/tests/common/util.rs
@@ -1,4 +1,5 @@
 #![allow(dead_code)]
+extern crate tempdir;
 
 use std::env;
 use std::fs::{self, File, OpenOptions};
@@ -14,7 +15,7 @@ use std::ffi::OsStr;
 use std::rc::Rc;
 use std::thread::sleep;
 use std::time::Duration;
-use tempdir::TempDir;
+use self::tempdir::TempDir;
 
 #[cfg(windows)]
 static PROGNAME: &'static str = "uutils.exe";
@@ -64,7 +65,7 @@ impl CmdResult {
         assert!(!self.success);
         Box::new(self)
     }
-    
+
     /// asserts that the command resulted in empty (zero-length) stderr stream output
     /// generally, it's better to use stdout_only() instead,
     /// but you might find yourself using this function if
@@ -74,7 +75,7 @@ impl CmdResult {
         assert_eq!(0, self.stderr.len());
         Box::new(self)
     }
-    
+
     /// asserts that the command resulted in empty (zero-length) stderr stream output
     /// unless asserting there was neither stdout or stderr, stderr_only is usually a better choice
     /// generally, it's better to use stderr_only() instead,
@@ -93,7 +94,7 @@ impl CmdResult {
         assert_eq!(String::from(msg.as_ref()).trim_right(), self.stdout.trim_right());
         Box::new(self)
     }
-    
+
     /// like stdout_is(...), but expects the contents of the file at the provided relative path
     pub fn stdout_is_fixture<T: AsRef<OsStr>>(&self, file_rel_path: T) -> Box<&CmdResult> {
         let contents = read_scenario_fixture(&self.tmpd, file_rel_path);
diff --git a/tests/test_factor.rs b/tests/test_factor.rs
index 33b8a2418..1912a24e5 100644
--- a/tests/test_factor.rs
+++ b/tests/test_factor.rs
@@ -8,9 +8,14 @@
 //
 
 use common::util::*;
-use rand::{weak_rng, Rng};
-use rand::distributions::{IndependentSample, Range};
-use sieve::Sieve;
+
+#[path="../src/factor/sieve.rs"]
+mod sieve;
+use self::sieve::Sieve;
+
+extern crate rand;
+use self::rand::{weak_rng, Rng};
+use self::rand::distributions::{IndependentSample, Range};
 
 const NUM_PRIMES: usize = 10000;
 const LOG_PRIMES: f64 = 14.0;   // ceil(log2(NUM_PRIMES))
diff --git a/tests/test_mktemp.rs b/tests/test_mktemp.rs
index 99c4f0a70..0783c5d2c 100644
--- a/tests/test_mktemp.rs
+++ b/tests/test_mktemp.rs
@@ -1,5 +1,6 @@
 use common::util::*;
-use tempdir::TempDir;
+extern crate tempdir;
+use self::tempdir::TempDir;
 
 static UTIL_NAME: &'static str = "mktemp";
 
diff --git a/tests/test_split.rs b/tests/test_split.rs
index a01817a79..582f3e0b1 100644
--- a/tests/test_split.rs
+++ b/tests/test_split.rs
@@ -4,8 +4,8 @@ extern crate regex;
 use std::fs::{File, read_dir};
 use std::io::{Read, Write};
 use std::path::Path;
-use rand::{Rng, thread_rng};
-use regex::Regex;
+use self::rand::{Rng, thread_rng};
+use self::regex::Regex;
 use common::util::*;
 
 static UTIL_NAME: &'static str = "split";
diff --git a/tests/tests.rs b/tests/tests.rs
index b9145f8a0..86f489fa0 100644
--- a/tests/tests.rs
+++ b/tests/tests.rs
@@ -1,19 +1,6 @@
-extern crate filetime;
-extern crate libc;
-extern crate rand;
-extern crate regex;
-extern crate tempdir;
-extern crate time;
-
-#[cfg(windows)] extern crate kernel32;
-#[cfg(windows)] extern crate winapi;
-
 #[macro_use]
 mod common;
 
-#[path="../src/factor/sieve.rs"]
-mod sieve;
-
 // For conditional compilation
 macro_rules! unix_only {
     ($($fea:expr, $m:ident);+) => {