Merge pull request #54 from bluss/more-versions

Cargo.toml: More specific rustc_version and rustc-serialize versions

Author: bluss

Cargo.toml

@@ -18,7 +18,7 @@ build = "build.rs"
 name = "ndarray"
 
 [build-dependencies]
-rustc_version = "0.1"
+rustc_version = "0.1.3"
 
 [dependencies.num]
 version = "0.1.30"
@@ -29,7 +29,7 @@ default-features = false
 version = "0.4.6"
 
 [dependencies.rustc-serialize]
-version = "0.3"
+version = "0.3.16"
 optional = true
 
 [dependencies]