Updates dependencies and tries to consolidate multiple version (#815)

substrate/build.rs

@@ -16,11 +16,16 @@
 
 extern crate vergen;
 
-use vergen::{vergen, OutputFns};
+use vergen::{ConstantsFlags, Vergen};
 
 const ERROR_MSG: &'static str = "Failed to generate metadata files";
 
 fn main() {
-	vergen(OutputFns::all()).expect(ERROR_MSG);
+	let vergen = Vergen::new(ConstantsFlags::all()).expect(ERROR_MSG);
+
+	for (k, v) in vergen.build_info() {
+		println!("cargo:rustc-env={}={}", k.name(), v);
+	}
+
 	println!("cargo:rerun-if-changed=.git/HEAD");
 }