2018-10 version bumps and compatibility updates

src/display/Cargo.toml

@@ -3,7 +3,7 @@ name = "display"
 version = "0.1.0"
 
 [dependencies]
-cortex-m-rt="~0.5"
+cortex-m-rt="~0.6"
 cortex-m-semihosting="~0.3"
-panic-semihosting = "~0.3"
-microbit="~0.5"
+panic-semihosting = "~0.5"
+microbit="~0.6"

src/display/src/main.rs

@@ -4,12 +4,10 @@
 extern crate panic_semihosting;
 extern crate cortex_m_rt as rt;
 extern crate cortex_m_semihosting as sh;
-
-#[macro_use(entry, exception)]
 extern crate microbit;
 
 use core::fmt::Write;
-use rt::ExceptionFrame;
+use rt::entry;
 use sh::hio;
 
 use microbit::hal::delay::Delay;
@@ -20,18 +18,6 @@ use microbit::hal::serial;
 use microbit::hal::serial::BAUD115200;
 use microbit::hal::prelude::*;
 
-exception!(HardFault, hard_fault);
-
-fn hard_fault(ef: &ExceptionFrame) -> ! {
-    panic!("{:#?}", ef);
-}
-
-exception!(*, default_handler);
-
-fn default_handler(irqn: i16) {
-    panic!("Unhandled exception (IRQn = {})", irqn);
-}
-
 type LED = PIN<Output<PushPull>>;
 
 const DEFAULT_DELAY_MS: u32 = 2;
@@ -128,7 +114,7 @@ impl Display {
     }
 }
 
-entry!(main);
+#[entry]
 fn main() -> ! {
     let mut stdout = hio::hstdout().unwrap();
     writeln!(stdout, "Start").unwrap();