rust fmt changes from recent updates

Author: 9prady9

build.rs

@@ -307,7 +307,14 @@ fn blob_backends(conf: &Config, build_dir: &std::path::PathBuf) -> (Vec<String>,
         };
 
         backend_dirs.push(afpath.join("lib").to_str().to_owned().unwrap().to_string());
-        backend_dirs.push(afpath.join("lib64").to_str().to_owned().unwrap().to_string());
+        backend_dirs.push(
+            afpath
+                .join("lib64")
+                .to_str()
+                .to_owned()
+                .unwrap()
+                .to_string(),
+        );
 
         if !cfg!(target_os = "windows") {
             backend_dirs.push(String::from("/usr/local/lib"));

examples/fft.rs

@@ -1,10 +1,6 @@
 use arrayfire::*;
 use num::Complex;
 
-type Complex32 = Complex<f32>;
-
-#[allow(unused_must_use)]
-#[allow(unused_variables)]
 fn main() {
     set_device(0);
     info();
@@ -21,7 +17,7 @@ fn main() {
         Complex::new(0.0, 2.0),
         Complex::new(0.0, 2.0),
         Complex::new(0.0, 2.0),
-        Complex::new(0.0, 2.0)
+        Complex::new(0.0, 2.0),
     ];
 
     let signal = Array::new(&values, dims);