Fix travis errors

diff --git a/src/libstd/os.rs b/src/libstd/os.rs
index f5183ab7188cbe852cdf44664472a980a52cd8fe..d2a2d9ff64bc38855edae71e0726e3e46def56d1 100644 (file)
--- a/src/libstd/os.rs
+++ b/src/libstd/os.rs
@@ -49,7 +49,7 @@
 use str::{Str, StrSlice, StrAllocating};
 use string::String;
 use sync::atomics::{AtomicInt, INIT_ATOMIC_INT, SeqCst};
-use to_str::ToString;
+use to_string::ToString;
 use vec::Vec;
 
 #[cfg(unix)]