RPM build fix (reverted CI changes which will need to be un-reverted or made conditional) and vendor Rust dependencies to make builds much faster in any CI system.

zeroidc/vendor/atty/examples/atty.rs

@@ -0,0 +1,9 @@
+extern crate atty;
+
+use atty::{is, Stream};
+
+fn main() {
+    println!("stdout? {}", is(Stream::Stdout));
+    println!("stderr? {}", is(Stream::Stderr));
+    println!("stdin? {}", is(Stream::Stdin));
+}