message: Always set WASMER_BUILD_GIT_HASH
diff: @@ -2,8 +2,6 @@ use chrono::prelude::*;
  use std::process::Command;
  pub fn main() {
  - println!("cargo:rerun-if-changed=build.rs");
  - println!("cargo:rerun-if-env-changed=WASMER_INSTALL_PREFIX");
  // Set WASMER_GIT_HASH
  let git_hash = Command::new("git")
  