Use format string with panic

src/config.rs

@@ -345,6 +345,6 @@ impl Default for Config {
 fn get_font<'a>(name: &str, map: &'a FontMap) -> FontRef<'a> {
     match map.get(name) {
         Some(f) => f,
-        None => panic!(format!("Font {} is missing from the config", name)),
+        None => panic!("Font {} is missing from the config", name),
     }
 }

src/doublemempool.rs

@@ -209,9 +209,9 @@ fn create_shm_fd() -> io::Result<RawFd> {
                 Err(nix::Error::Sys(errno)) => match unistd::close(fd) {
                     Ok(_) => return Err(io::Error::from(errno)),
                     Err(nix::Error::Sys(errno)) => return Err(io::Error::from(errno)),
-                    Err(err) => panic!(err),
+                    Err(err) => panic!("{}", err),
                 },
-                Err(err) => panic!(err),
+                Err(err) => panic!("{}", err),
             },
             Err(nix::Error::Sys(Errno::EEXIST)) => {
                 // If a file with that handle exists then change the handle

src/widgets/audio/alsa_sound.rs

@@ -99,7 +99,7 @@ impl BarWidgetImpl for Alsa {
     fn value(&self) -> f32 {
         match self.get_master_volume() {
             Ok(v) => v,
-            Err(e) => panic!(e),
+            Err(e) => panic!("{}", e),
         }
     }
     fn color(&self) -> Color {
@@ -107,12 +107,12 @@ impl BarWidgetImpl for Alsa {
     }
     fn inc(&mut self, diff: f32) {
         if let Err(e) = self.inc_master_volume(diff) {
-            panic!(e)
+            panic!("{}", e)
         }
     }
     fn set(&mut self, abs: f32) {
         if let Err(e) = self.set_master_volume(abs) {
-            panic!(e)
+            panic!("{}", e)
         }
     }
     fn toggle(&mut self) {}