diff --git a/src/lib.rs b/src/lib.rs
index 62bc2ac..9b899a5 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -22,9 +22,10 @@
 extern crate jemalloc_sys;
 extern crate libc;
 
-use core::mem;
-use core::ptr::{self, NonNull};
-use core::heap::{GlobalAlloc, Alloc, Layout, Opaque, Excess, CannotReallocInPlace, AllocErr};
+use std::mem;
+use std::ptr::{self, NonNull};
+use std::heap::{GlobalAlloc, Alloc, Layout, Opaque, Excess,
+                CannotReallocInPlace, AllocErr};
 
 use libc::{c_int, c_void};
 
diff --git a/tests/malloctl.rs b/tests/malloctl.rs
index 8e38eee..38c21af 100644
--- a/tests/malloctl.rs
+++ b/tests/malloctl.rs
@@ -13,7 +13,7 @@ static A: Jemalloc = Jemalloc;
 fn smoke() {
     let layout = Layout::from_size_align(100, 8).unwrap();
     unsafe {
-        let ptr = Jemalloc.alloc(layout.clone()).unwrap_or_else(|_| panic!());
+        let ptr = Jemalloc.alloc(layout.clone()).unwrap();
         Jemalloc.dealloc(ptr, layout);
     }
 }