Address CI issues

At this stage allow where they happen. In future they can be allowed at
the crate level if necesarry.

Author: robyoung

examples/led_nonblocking.rs

@@ -29,7 +29,8 @@ fn heart_image(inner_brightness: u8) -> GreyscaleImage {
 
 static GPIO: Mutex<RefCell<Option<GPIO>>> = Mutex::new(RefCell::new(None));
 static ANIM_TIMER: Mutex<RefCell<Option<LoResTimer<RTC0>>>> = Mutex::new(RefCell::new(None));
-static DISPLAY_TIMER: Mutex<RefCell<Option<MicrobitDisplayTimer<TIMER1>>>> = Mutex::new(RefCell::new(None));
+static DISPLAY_TIMER: Mutex<RefCell<Option<MicrobitDisplayTimer<TIMER1>>>> =
+    Mutex::new(RefCell::new(None));
 static DISPLAY: Mutex<RefCell<Option<Display<MicrobitFrame>>>> = Mutex::new(RefCell::new(None));
 
 #[entry]

src/display/image.rs

@@ -76,7 +76,7 @@ impl BitImage {
         // FIXME: can we reject values other than 0 or 1?
         const fn row_byte(row: [u8; 5]) -> u8 {
             row[0] | row[1] << 1 | row[2] << 2 | row[3] << 3 | row[4] << 4
-        };
+        }
         BitImage([
             row_byte(im[0]),
             row_byte(im[1]),

src/led.rs

@@ -8,6 +8,7 @@ use crate::hal::gpio::gpio::{
 use crate::hal::gpio::{Output, PushPull};
 use crate::hal::prelude::*;
 
+#[allow(clippy::upper_case_acronyms)]
 type LED = PIN<Output<PushPull>>;
 
 const DEFAULT_DELAY_MS: u32 = 2;
@@ -28,6 +29,7 @@ pub struct Display {
 
 impl Display {
     /// Initializes all the user LEDs
+    #[allow(clippy::too_many_arguments)]
     pub fn new(
         col1: PIN4<Output<PushPull>>,
         col2: PIN5<Output<PushPull>>,