Maintain compatibility with Rust 1.25

.travis.yml

@@ -43,6 +43,10 @@ matrix:
     - rust: nightly
       script: *test_all
 
+    # Test everything on Rust 1.25.0 for backward compatibility
+    - rust: 1.25.0
+      script: *test_all
+
     # Upload docs on nightly
     - rust: nightly
       script:

src/symbolize/dbghelp.rs

@@ -10,8 +10,12 @@
 
 #![allow(bad_style)]
 
+#[cfg(feature = "std")]
+use std::char;
+
 use core::mem;
 use core::slice;
+#[cfg(not(feature = "std"))]
 use core::char;
 
 use winapi::ctypes::*;

src/types.rs

@@ -31,8 +31,8 @@ impl<'a> BytesOrWideString<'a> {
         use self::BytesOrWideString::*;
 
         match self {
-            Bytes(slice) => String::from_utf8_lossy(slice),
-            Wide(wide) => Cow::Owned(String::from_utf16_lossy(wide)),
+            &Bytes(slice) => String::from_utf8_lossy(slice),
+            &Wide(wide) => Cow::Owned(String::from_utf16_lossy(wide)),
         }
     }