bump dependencies

japaric · japaric · commit cffc15846abd · 2018-09-18T00:38:06.000+02:00
diff --git a/Cargo.toml b/Cargo.toml
@@ -6,9 +6,9 @@ version = "0.1.0"
 
 [dependencies]
 cortex-m = "0.5.7"
-cortex-m-rt = "0.6.1"
+cortex-m-rt = "0.6.3"
 cortex-m-semihosting = "0.3.1"
-panic-halt = "0.1.3"
+panic-halt = "0.2.0"
 
 # Uncomment for the panic example.
 # panic-itm = "0.4.0"
